Overview

Classes

  • GF_Background_Upgrader
  • GF_Download
  • GF_Forms_Model_Legacy
  • GF_Query_Call
  • GF_Query_Column
  • GF_Query_Condition
  • GF_Query_Literal
  • GF_Query_Series
  • GF_Upgrade
  • GFAddOn
  • GFAddOnFeedsTable
  • GFAPI
  • GFFeedAddOn
  • GFPaymentAddOn
  • GFPaymentStatsTable
  • Gravity_Api

Functions

  • gapi
  • Overview
  • Class
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<?php

if ( ! class_exists( 'GFForms' ) ) {
    die();
}

require_once( ABSPATH . WPINC . '/post.php' );

/**
 * Class GF_Forms_Model_Legacy
 *
 * Legacy methods from GFFormsModel
 */
class GF_Forms_Model_Legacy {

    /**
     * Gets the form table name, including the site's database prefix.
     *
     * @since  Unknown
     * @access public
     * @global $wpdb
     *
     * @return string The form table name.
     */
    public static function get_form_table_name() {
        global $wpdb;
        return $wpdb->prefix . 'rg_form';
    }

    /**
     * Gets the form meta table, including the site's database prefix.
     *
     * @since  Unknown
     * @access public
     * @global $wpdb
     *
     * @return string The form meta table.
     */
    public static function get_meta_table_name() {
        global $wpdb;
        return $wpdb->prefix . 'rg_form_meta';
    }

    /**
     * Gets the form view table name, including the site's database prefix.
     *
     * @since  Unknown
     * @access public
     * @global $wpdb
     *
     * @return string The form view table name.
     */
    public static function get_form_view_table_name() {
        global $wpdb;
        return $wpdb->prefix . 'rg_form_view';
    }


    /**
     * Gets the lead (entries) table name, including the site's database prefix
     *
     * @access public
     * @static
     * @global $wpdb
     *
     * @return string The lead (entry) table name
     */
    public static function get_lead_table_name() {
        global $wpdb;

        return $wpdb->prefix . 'rg_lead';
    }

    /**
     * Gets the lead (entry) meta table name, including the site's database prefix
     *
     * @access public
     * @static
     * @global $wpdb
     *
     * @return string The lead (entry) meta table name
     */
    public static function get_lead_meta_table_name() {
        global $wpdb;

        return $wpdb->prefix . 'rg_lead_meta';
    }

    /**
     * Gets the lead (entry) notes table name, including the site's database prefix
     *
     * @access public
     * @static
     * @global $wpdb
     *
     * @return string The lead (entry) notes table name
     */
    public static function get_lead_notes_table_name() {
        global $wpdb;

        return $wpdb->prefix . 'rg_lead_notes';
    }

    /**
     * Gets the lead (entry) details table name, including the site's database prefix
     *
     * @access public
     * @static
     * @global $wpdb
     *
     * @return string The lead (entry) details table name
     */
    public static function get_lead_details_table_name() {
        global $wpdb;

        return $wpdb->prefix . 'rg_lead_detail';
    }

    /**
     * Gets the lead (entry) details long table name, including the site's database prefix
     *
     * @access public
     * @static
     * @global $wpdb
     *
     * @return string The lead (entry) details long table name
     */
    public static function get_lead_details_long_table_name() {
        global $wpdb;

        return $wpdb->prefix . 'rg_lead_detail_long';
    }

    /**
     * Gets the lead (entry) view table name, including the site's database prefix
     *
     * @access public
     * @static
     * @global $wpdb
     *
     * @return string The lead (entry) view table name
     */
    public static function get_lead_view_name() {
        global $wpdb;

        return $wpdb->prefix . 'rg_lead_view';
    }

    /**
     * Gets the incomplete submissions table name, including the site's database prefix
     *
     * @access public
     * @static
     * @global $wpdb
     *
     * @return string The incomplete submissions table name
     */
    public static function get_incomplete_submissions_table_name() {
        global $wpdb;

        return $wpdb->prefix . 'rg_incomplete_submissions';
    }

    public static function get_legacy_tables() {
        return array(
            self::get_form_table_name(),
            self::get_meta_table_name(),
            self::get_form_view_table_name(),
            self::get_lead_details_long_table_name(),
            self::get_lead_notes_table_name(),
            self::get_lead_details_table_name(),
            self::get_lead_table_name(),

            self::get_lead_meta_table_name(),
            self::get_incomplete_submissions_table_name(),
        );
    }

    /**
     * Gets the number of entries per form.
     *
     * First attempts to read from cache. If unavailable, gets the entry count, caches it, and returns it.
     *
     * @since 2.3 lead_count changed to entry_count
     *
     * @access public
     * @static
     * @global $wpdb
     * @see GFFormsModel::get_lead_table_name
     * @see GFCache::get
     * @see GFCache::set
     *
     * @return array $entry_count Array of forms, containing the form ID and the entry count
     */
    public static function get_entry_count_per_form() {
        global $wpdb;
        $lead_table_name = self::get_lead_table_name();

        $entry_count = GFCache::get( 'get_entry_count_per_form' );
        if ( empty( $entry_count ) ) {
            //Getting entry count per form
            $sql         = "SELECT form_id, count(id) as entry_count FROM $lead_table_name l WHERE status='active' GROUP BY form_id";
            $entry_count = $wpdb->get_results( $sql );

            GFCache::set( 'get_entry_count_per_form', $entry_count, true, 30 );
        }

        return $entry_count;
    }

    /**
     * Gets the total, unread, starred, spam, and trashed entry counts.
     *
     * @since  Unknown
     * @access public
     * @global $wpdb
     *
     * @uses GFFormsModel::get_lead_table_name()
     * @uses GFFormsModel::get_lead_details_table_name()
     *
     * @param int $form_id The ID of the form to check.
     *
     * @return array $results[0] The form counts.
     */
    public static function get_form_counts( $form_id ) {
        global $wpdb;
        $lead_table_name = self::get_lead_table_name();
        $lead_detail_table_name = self::get_lead_details_table_name();

        $sql             = $wpdb->prepare(
            "SELECT
                    (SELECT count(DISTINCT(l.id)) FROM $lead_table_name l INNER JOIN $lead_detail_table_name ld ON l.id=ld.lead_id WHERE l.form_id=%d AND l.status='active') as total,
                    (SELECT count(DISTINCT(l.id)) FROM $lead_table_name l INNER JOIN $lead_detail_table_name ld ON l.id=ld.lead_id WHERE l.is_read=0 AND l.status='active' AND l.form_id=%d) as unread,
                    (SELECT count(DISTINCT(l.id)) FROM $lead_table_name l INNER JOIN $lead_detail_table_name ld ON l.id=ld.lead_id WHERE l.is_starred=1 AND l.status='active' AND l.form_id=%d) as starred,
                    (SELECT count(DISTINCT(l.id)) FROM $lead_table_name l INNER JOIN $lead_detail_table_name ld ON l.id=ld.lead_id WHERE l.status='spam' AND l.form_id=%d) as spam,
                    (SELECT count(DISTINCT(l.id)) FROM $lead_table_name l INNER JOIN $lead_detail_table_name ld ON l.id=ld.lead_id WHERE l.status='trash' AND l.form_id=%d) as trash",
            $form_id, $form_id, $form_id, $form_id, $form_id
        );

        $results = $wpdb->get_results( $sql, ARRAY_A );

        return $results[0];

    }

    public static function update_leads_property( $leads, $property_name, $property_value ) {
        foreach ( $leads as $lead ) {
            self::update_lead_property( $lead, $property_name, $property_value );
        }
    }

    public static function update_lead_property( $lead_id, $property_name, $property_value, $update_akismet = true, $disable_hook = false ) {
        global $wpdb;
        $lead_table = GFFormsModel::get_lead_table_name();

        $lead = GFFormsModel::get_lead( $lead_id );

        //marking entry as 'spam' or 'not spam' with Akismet if the plugin is installed
        if ( $update_akismet && GFCommon::akismet_enabled( $lead['form_id'] ) && $property_name == 'status' && in_array( $property_value, array( 'active', 'spam' ) ) ) {

            $current_status = $lead['status'];
            if ( $current_status == 'spam' && $property_value == 'active' ) {
                $form = GFFormsModel::get_form_meta( $lead['form_id'] );
                GFCommon::mark_akismet_spam( $form, $lead, false );
            } else if ( $current_status == 'active' && $property_value == 'spam' ) {
                $form = GFFormsModel::get_form_meta( $lead['form_id'] );
                GFCommon::mark_akismet_spam( $form, $lead, true );
            }
        }

        //updating lead
        $result = $wpdb->update( $lead_table, array( $property_name => $property_value ), array( 'id' => $lead_id ) );

        if ( ! $disable_hook ) {

            $previous_value = rgar( $lead, $property_name );

            if ( $previous_value != $property_value ) {

                // if property is status, prev value is spam and new value is active
                if ( $property_name == 'status' && $previous_value == 'spam' && $property_value == 'active' && ! rgar( $lead, 'post_id' ) ) {
                    $lead[ $property_name ] = $property_value;
                    $lead['post_id']      = GFCommon::create_post( isset( $form ) ? $form : GFAPI::get_form( $lead['form_id'] ), $lead );
                }

                /**
                 * Fired after an entry property is updated
                 *
                 * @param string $property_name Used within the action string.  Defines the property that fires the action.
                 *
                 * @param int    $lead_id        The Entry ID
                 * @param string $property_value The new value of the property that was updated
                 * @param string $previous_value The previous property value before the update
                 */
                do_action( "gform_update_{$property_name}", $lead_id, $property_value, $previous_value );
            }
        }

        return $result;
    }

    public static function delete_leads( $leads ) {
        foreach ( $leads as $lead_id ) {
            self::delete_lead( $lead_id );
        }
    }

    public static function delete_lead( $lead_id ) {

        global $wpdb;

        GFCommon::log_debug( __METHOD__ . "(): Deleting entry #{$lead_id}." );

        /**
         * Fires before a lead is deleted
         * @param $lead_id
         * @deprecated
         * @see gform_delete_entry
         */
        do_action( 'gform_delete_lead', $lead_id );

        $lead_table             = self::get_lead_table_name();
        $lead_notes_table       = self::get_lead_notes_table_name();
        $lead_detail_table_name = self::get_lead_details_table_name();

        //deleting uploaded files
        GFFormsModel::delete_files( $lead_id );

        //Delete from lead details
        $sql = $wpdb->prepare( "DELETE FROM $lead_detail_table_name WHERE lead_id=%d", $lead_id );
        $wpdb->query( $sql );

        //Delete from lead notes
        $sql = $wpdb->prepare( "DELETE FROM $lead_notes_table WHERE lead_id=%d", $lead_id );
        $wpdb->query( $sql );

        //Delete from lead meta
        gform_delete_meta( $lead_id );

        //Delete from lead
        $sql = $wpdb->prepare( "DELETE FROM $lead_table WHERE id=%d", $lead_id );
        $wpdb->query( $sql );

    }

    public static function delete_leads_by_form( $form_id, $status = '' ) {
        global $wpdb;

        $lead_table             = GFFormsModel::get_lead_table_name();
        $lead_notes_table       = GFFormsModel::get_lead_notes_table_name();
        $lead_detail_table      = GFFormsModel::get_lead_details_table_name();
        $lead_meta_table        = GFFormsModel::get_lead_meta_table_name();

        GFCommon::log_debug( __METHOD__ . "(): Deleting entries for form #{$form_id}." );

        /**
         * Fires when you delete entries for a specific form
         *
         * @param int    $form_id The form ID to specify from which form to delete entries
         * @param string $status  Allows you to set the form entries to a deleted status
         */
        do_action( 'gform_delete_entries', $form_id, $status );

        //deleting uploaded files
        self::delete_files_by_form( $form_id, $status );

        $status_filter = empty( $status ) ? '' : $wpdb->prepare( 'AND status=%s', $status );

        //Delete from lead details
        $sql = $wpdb->prepare(
            " DELETE FROM $lead_detail_table
                                WHERE lead_id IN (
                                    SELECT id FROM $lead_table WHERE form_id=%d {$status_filter}
                                )", $form_id
        );
        $wpdb->query( $sql );

        //Delete from lead notes
        $sql = $wpdb->prepare(
            " DELETE FROM $lead_notes_table
                                WHERE lead_id IN (
                                    SELECT id FROM $lead_table WHERE form_id=%d {$status_filter}
                                )", $form_id
        );
        $wpdb->query( $sql );

        //Delete from lead meta
        $sql = $wpdb->prepare(
            " DELETE FROM $lead_meta_table
                                WHERE lead_id IN (
                                    SELECT id FROM $lead_table WHERE form_id=%d {$status_filter}
                                )", $form_id
        );
        $wpdb->query( $sql );

        //Delete from lead
        $sql = $wpdb->prepare( "DELETE FROM $lead_table WHERE form_id=%d {$status_filter}", $form_id );
        $wpdb->query( $sql );
    }

    public static function delete_files_by_form( $form_id, $status = '' ) {
        global $wpdb;
        $form   = GFFormsModel::get_form_meta( $form_id );

        // Default field types to delete
        $field_types = array( 'fileupload', 'post_image' );

        /**
         * Allows more files to be deleted
         *
         * @since 1.9.10
         *
         * @param array $field_types Field types which contain file uploads
         * @param array $form        The Form Object
         */
        $field_types = gf_apply_filters( array( 'gform_field_types_delete_files', $form_id ), $field_types, $form );


        $fields = GFFormsModel::get_fields_by_type( $form, $field_types );
        if ( empty( $fields ) ) {
            return;
        }

        $status_filter = empty( $status ) ? '' : $wpdb->prepare( 'AND status=%s', $status );
        $results       = $wpdb->get_results( $wpdb->prepare( "SELECT id FROM {$wpdb->prefix}rg_lead WHERE form_id=%d {$status_filter}", $form_id ), ARRAY_A );

        foreach ( $results as $result ) {
            GFFormsModel::delete_files( $result['id'], $form );
        }
    }

    public static function delete_file( $entry_id, $field_id, $file_index = 0 ) {
        global $wpdb;

        if ( $entry_id == 0 || $field_id == 0 ) {
            return;
        }

        $entry          = self::get_lead( $entry_id );
        $form_id        = $entry['form_id'];
        $form           = GFFormsModel::get_form_meta( $form_id );
        $field          = GFFormsModel::get_field( $form, $field_id );
        $multiple_files = $field->multipleFiles;
        if ( $multiple_files ) {
            $file_urls = json_decode( $entry[ $field_id ], true );
            $file_url  = $file_urls[ $file_index ];
            unset( $file_urls[ $file_index ] );
            $file_urls   = array_values( $file_urls );
            $field_value = empty( $file_urls ) ? '' : json_encode( $file_urls );
        } else {
            $file_url    = $entry[ $field_id ];
            $field_value = '';
        }

        self::delete_physical_file( $file_url );

        // update lead field value - simulate form submission

        $lead_detail_table = self::get_lead_details_table_name();
        $sql               = $wpdb->prepare( "SELECT id FROM $lead_detail_table WHERE lead_id=%d AND meta_key = %s", $entry_id, $field_id );
        $entry_detail_id   = $wpdb->get_var( $sql );

        GFFormsModel::update_lead_field_value( $form, $entry, $field, $entry_detail_id, $field_id, $field_value );

    }

    private static function delete_physical_file( $file_url ) {
        $ary = explode( '|:|', $file_url );
        $url = rgar( $ary, 0 );
        if ( empty( $url ) ) {
            return;
        }

        $file_path = GFFormsModel::get_physical_file_path( $url );

        if ( file_exists( $file_path ) ) {
            unlink( $file_path );
        }
    }

    public static function get_lead( $lead_id ) {
        return GFAPI::get_entry( $lead_id );
    }

    public static function delete_field_values( $form_id, $field_id ) {
        global $wpdb;

        $lead_table             = self::get_lead_table_name();
        $lead_detail_table      = self::get_lead_details_table_name();

        // Delete from lead details
        $sql = $wpdb->prepare( "DELETE FROM $lead_detail_table WHERE form_id=%d AND field_number >= %d AND field_number < %d", $form_id, $field_id, $field_id + 1 );
        $wpdb->query( $sql );

        //Delete leads with no details
        $sql = $wpdb->prepare(
            " DELETE FROM $lead_table
                                WHERE form_id=%d
                                AND id NOT IN(
                                    SELECT DISTINCT(lead_id) FROM $lead_detail_table WHERE form_id=%d
                                )", $form_id, $form_id
        );
        $wpdb->query( $sql );
    }

    public static function save_lead( $form, &$lead ) {
        global $wpdb;

        GFCommon::log_debug( __METHOD__ . '(): Saving entry.' );

        $is_form_editor  = GFCommon::is_form_editor();
        $is_entry_detail = GFCommon::is_entry_detail();
        $is_admin        = $is_form_editor || $is_entry_detail;

        if ( $is_admin && ! GFCommon::current_user_can_any( 'gravityforms_edit_entries' ) ) {
            die( esc_html__( "You don't have adequate permission to edit entries.", 'gravityforms' ) );
        }

        $lead_detail_table = self::get_lead_details_table_name();
        $is_new_lead       = $lead == null;

        //Inserting lead if null
        if ( $is_new_lead ) {

            global $current_user;
            $user_id = $current_user && $current_user->ID ? $current_user->ID : 'NULL';

            $lead_table = RGFormsModel::get_lead_table_name();
            $user_agent = self::truncate( rgar( $_SERVER, 'HTTP_USER_AGENT' ), 250 );
            $user_agent = sanitize_text_field( $user_agent );
            $source_url = self::truncate( GFFormsModel::get_current_page_url(), 200 );

            /**
             * Allow the currency code to be overridden.
             *
             * @param string $currency The three character ISO currency code to be stored in the entry. Default is value returned by GFCommon::get_currency()
             * @param array $form The form currently being processed.
             *
             */
            $currency = gf_apply_filters( array( 'gform_currency_pre_save_entry', $form['id'] ), GFCommon::get_currency(), $form );

            $wpdb->query( $wpdb->prepare( "INSERT INTO $lead_table(form_id, ip, source_url, date_created, user_agent, currency, created_by) VALUES(%d, %s, %s, utc_timestamp(), %s, %s, {$user_id})", $form['id'], GFFormsModel::get_ip(), $source_url, $user_agent, $currency ) );


            //reading newly created lead id
            $lead_id = $wpdb->insert_id;

            if ( $lead_id == 0 ) {
                GFCommon::log_error( __METHOD__ . '(): Unable to save entry. ' . $wpdb->last_error );

                die( esc_html__( 'An error prevented the entry for this form submission being saved. Please contact support.', 'gravityforms' ) );
            }

            $lead = array( 'id' => $lead_id );

            GFCommon::log_debug( __METHOD__ . "(): Entry record created in the database. ID: {$lead_id}." );
        }

        $current_fields   = $wpdb->get_results( $wpdb->prepare( "SELECT id, field_number FROM $lead_detail_table WHERE lead_id=%d", $lead['id'] ) );

        $total_fields = array();
        /* @var $calculation_fields GF_Field[] */
        $calculation_fields = array();
        $recalculate_total  = false;

        GFCommon::log_debug( __METHOD__ . '(): Saving entry fields.' );

        foreach ( $form['fields'] as $field ) {
            /* @var $field GF_Field */

            // ignore the honeypot field
            if ( $field->type == 'honeypot' ) {
                continue;
            }

            //Ignore fields that are marked as display only
            if ( $field->displayOnly && $field->type != 'password' ) {
                continue;
            }

            // Ignore pricing fields in the entry detail
            if ( $is_entry_detail && GFCommon::is_pricing_field( $field->type ) ) {
                continue;
            }


            // Process total field after all fields have been saved
            if ( $field->type == 'total' ) {
                $total_fields[] = $field;
                continue;
            }

            $read_value_from_post = $is_new_lead || ! isset( $lead[ 'date_created' ] );

            // Only save fields that are not hidden (except when updating an entry)
            if ( $is_entry_detail || ! GFFormsModel::is_field_hidden( $form, $field, array(), $read_value_from_post ? null : $lead ) ) {

                // process calculation fields after all fields have been saved (moved after the is hidden check)
                if ( $field->has_calculation() ) {
                    $calculation_fields[] = $field;
                    continue;
                }

                if ( $field->type == 'post_category' ) {
                    $field = GFCommon::add_categories_as_choices( $field, '' );
                }

                $inputs = $field->get_entry_inputs();
                if ( is_array( $inputs ) ) {
                    foreach ( $inputs as $input ) {
                        self::save_input( $form, $field, $lead, $current_fields, $input['id'] );
                    }
                } else {
                    self::save_input( $form, $field, $lead, $current_fields, $field->id );
                }
            }
        }

        if ( ! empty( $calculation_fields ) ) {
            foreach ( $calculation_fields as $calculation_field ) {
                $inputs = $calculation_field->get_entry_inputs();
                if ( is_array( $inputs ) ) {
                    foreach ( $inputs as $input ) {
                        self::save_input( $form, $calculation_field, $lead, $current_fields, $input['id'] );
                        GFFormsModel::refresh_lead_field_value( $lead['id'], $input['id'] );
                    }
                } else {
                    self::save_input( $form, $calculation_field, $lead, $current_fields, $calculation_field->id );
                    GFFormsModel::refresh_lead_field_value( $lead['id'], $calculation_field->id );
                }
            }
            GFFormsModel::refresh_product_cache( $form, $lead = RGFormsModel::get_lead( $lead['id'] ) );
        }

        //saving total field as the last field of the form.
        if ( ! empty( $total_fields ) ) {
            foreach ( $total_fields as $total_field ) {
                self::save_input( $form, $total_field, $lead, $current_fields, $total_field->id );
                GFFormsModel::refresh_lead_field_value( $lead['id'], $total_field->id );
            }
        }
        GFCommon::log_debug( __METHOD__ . '(): Finished saving entry fields.' );
    }

    public static function save_input( $form, $field, &$lead, $current_fields, $input_id ) {

        $input_name = 'input_' . str_replace( '.', '_', $input_id );

        if ( $field->enableCopyValuesOption && rgpost( 'input_' . $field->id . '_copy_values_activated' ) ) {
            $source_field_id   = $field->copyValuesOptionField;
            $source_input_name = str_replace( 'input_' . $field->id, 'input_' . $source_field_id, $input_name );
            $value             = rgpost( $source_input_name );
        } else {
            $value = rgpost( $input_name );
        }

        $value = GFFormsModel::maybe_trim_input( $value, $form['id'], $field );

        //ignore file upload when nothing was sent in the admin
        //ignore post fields in the admin
        $type           = GFFormsModel::get_input_type( $field );
        $multiple_files = $field->multipleFiles;
        $uploaded_files = GFFormsModel::$uploaded_files;
        $form_id        = $form['id'];
        if ( RG_CURRENT_VIEW == 'entry' && $type == 'fileupload' && ( ( ! $multiple_files && empty( $_FILES[ $input_name ]['name'] ) ) || ( $multiple_files && ! isset( $uploaded_files[ $form_id ][ $input_name ] ) ) ) ) {
            return;
        } else if ( RG_CURRENT_VIEW == 'entry' && in_array( $field->type, array( 'post_category', 'post_title', 'post_content', 'post_excerpt', 'post_tags', 'post_custom_field', 'post_image' ) ) ) {
            return;
        }

        $is_form_editor = GFCommon::is_form_editor();
        $is_entry_detail = GFCommon::is_entry_detail();
        $is_admin = $is_form_editor || $is_entry_detail;

        if ( empty( $value ) && $field->is_administrative() && ! $is_admin ) {
            $value = GFFormsModel::get_default_value( $field, $input_id );
        }

        //processing values so that they are in the correct format for each input type
        $value = GFFormsModel::prepare_value( $form, $field, $value, $input_name, rgar( $lead, 'id' ) );

        //ignore fields that have not changed
        if ( $lead != null && isset( $lead[ $input_id ] ) && $value === rgget( (string) $input_id, $lead ) ) {
            return;
        }

        $lead_detail_id = GFFormsModel::get_lead_detail_id( $current_fields, $input_id );
        $result         = GFFormsModel::update_lead_field_value( $form, $lead, $field, $lead_detail_id, $input_id, $value );
        GFCommon::log_debug( __METHOD__ . "(): Saving: {$field->label}(#{$input_id} - {$field->type}). Result: " . var_export( $result, 1 ) );

    }

    private static function truncate( $str, $length ) {
        if ( strlen( $str ) > $length ) {
            $str = substr( $str, 0, $length );
        }

        return $str;
    }

    public static function is_duplicate( $form_id, $field, $value ) {
        global $wpdb;

        $lead_detail_table_name = self::get_lead_details_table_name();
        $lead_table_name        = self::get_lead_table_name();


        switch ( GFFormsModel::get_input_type( $field ) ) {
            case 'time':
                $value = sprintf( "%02d:%02d %s", $value[0], $value[1], $value[2] );
                break;
            case 'date':
                $value = self::prepare_date( $field->dateFormat, $value );
                break;
            case 'number':
                $value = GFCommon::clean_number( $value, $field->numberFormat );
                break;
            case 'phone':
                $value          = str_replace( array( ')', '(', '-', ' ' ), '', $value );
                $sql_comparison = 'replace( replace( replace( replace( ld.value, ")", "" ), "(", "" ), "-", "" ), " ", "" ) = %s';
                break;
            case 'email':
                $value = is_array( $value ) ? rgar( $value, 0 ) : $value;
                break;
        }

        $inner_sql_template = "SELECT %s as input, ld.lead_id
                                FROM {$lead_detail_table_name} ld
                                INNER JOIN {$lead_table_name} l ON l.id = ld.lead_id\n";


        $inner_sql_template .= "WHERE l.form_id=%d AND ld.form_id=%d
                                AND ld.meta_key = %s
                                AND status='active' AND ld.value = %s";

        $sql = "SELECT count(distinct input) as match_count FROM ( ";

        $input_count = 1;
        if ( is_array( $field->get_entry_inputs() ) ) {
            $input_count = sizeof( $field->inputs );
            $inner_sql   = '';
            foreach ( $field->inputs as $input ) {
                $union = empty( $inner_sql ) ? '' : ' UNION ALL ';
                $inner_sql .= $union . $wpdb->prepare( $inner_sql_template, $input['id'], $form_id, $form_id, $input['id'] - 0.0001, $input['id'] + 0.0001, $value[ $input['id'] ] );
            }
        } else {
            $inner_sql = $wpdb->prepare( $inner_sql_template, $field->id, $form_id, $form_id, doubleval( $field->id ) - 0.0001, doubleval( $field->id ) + 0.0001, $value );
        }

        $sql .= $inner_sql . "
                ) as count
                GROUP BY lead_id
                ORDER BY match_count DESC";

        $count = gf_apply_filters( array( 'gform_is_duplicate', $form_id ), $wpdb->get_var( $sql ), $form_id, $field, $value );

        return $count != null && $count >= $input_count;
    }

    public static function get_lead_notes( $lead_id ) {
        global $wpdb;
        $notes_table = self::get_lead_notes_table_name();

        return $wpdb->get_results(
            $wpdb->prepare(
                "  SELECT n.id, n.user_id, n.date_created, n.value, n.note_type, ifnull(u.display_name,n.user_name) as user_name, u.user_email
                                                    FROM $notes_table n
                                                    LEFT OUTER JOIN $wpdb->users u ON n.user_id = u.id
                                                    WHERE lead_id=%d ORDER BY id", $lead_id
            )
        );
    }

    public static function get_leads_by_meta( $meta_key, $meta_value ) {
        global $wpdb;

        $sql = $wpdb->prepare(
            "   SELECT l.*, d.field_number, d.value
                    FROM {$wpdb->prefix}rg_lead l
                    INNER JOIN {$wpdb->prefix}rg_lead_detail d ON l.id = d.lead_id
                    INNER JOIN {$wpdb->prefix}rg_lead_meta m ON l.id = m.lead_id
                    WHERE m.meta_key=%s AND m.meta_value=%s", $meta_key, $meta_value
        );

        //getting results
        $results = $wpdb->get_results( $sql );
        $leads   = self::build_lead_array( $results );

        return $leads;
    }

    public static function get_leads( $form_id, $sort_field_number = 0, $sort_direction = 'DESC', $search = '', $offset = 0, $page_size = 30, $star = null, $read = null, $is_numeric_sort = false, $start_date = null, $end_date = null, $status = 'active', $payment_status = false ) {
        global $wpdb;

        if ( empty( $sort_field_number ) ) {
            $sort_field_number = 'date_created';
        }

        if ( is_numeric( $sort_field_number ) ) {
            $sql = self::sort_by_custom_field_query( $form_id, $sort_field_number, $sort_direction, $search, $offset, $page_size, $star, $read, $is_numeric_sort, $status, $payment_status );
        } else {
            $sql = self::sort_by_default_field_query( $form_id, $sort_field_number, $sort_direction, $search, $offset, $page_size, $star, $read, $is_numeric_sort, $start_date, $end_date, $status, $payment_status );
        }

        //initializing rownum
        $wpdb->query( 'select @rownum:=0' );

        //getting results
        $results = $wpdb->get_results( $sql );

        $leads = self::build_lead_array( $results );

        return $leads;
    }

    private static function sort_by_custom_field_query( $form_id, $sort_field_number = 0, $sort_direction = 'DESC', $search = '', $offset = 0, $page_size = 30, $star = null, $read = null, $is_numeric_sort = false, $status = 'active', $payment_status = false ) {
        if ( ! is_numeric( $form_id ) || ! is_numeric( $sort_field_number ) || ! is_numeric( $offset ) || ! is_numeric( $page_size ) ) {
            return '';
        }

        $lead_detail_table_name = self::get_lead_details_table_name();
        $lead_table_name        = self::get_lead_table_name();

        $sort_direction = in_array( strtolower( $sort_direction ), array( 'desc', 'asc', 'rand' ) ) ? strtoupper( $sort_direction ) : 'ASC';

        $orderby    = $is_numeric_sort ? "ORDER BY query, (value+0) $sort_direction" : "ORDER BY query, value $sort_direction";
        $is_default = false;

        $search_sql = self::get_leads_where_sql( compact( 'form_id', 'search', 'status', 'star', 'read', 'start_date', 'end_date', 'payment_status', 'is_default' ) );

        $sql = "
            SELECT filtered.sort, l.*, d.field_number, d.value
            FROM $lead_table_name l
            INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
            INNER JOIN (
                SELECT distinct sorted.sort, l.id
                FROM $lead_table_name l
                INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
                INNER JOIN (
                    SELECT @rownum:=@rownum+1 as sort, id FROM (
                        SELECT 0 as query, lead_id as id, value
                        FROM $lead_detail_table_name
                        WHERE form_id=$form_id
                        AND meta_key = $sort_field_number

                        UNION ALL

                        SELECT 1 as query, l.id, d.value
                        FROM $lead_table_name l
                        LEFT OUTER JOIN $lead_detail_table_name d ON d.lead_id = l.id AND meta_key = $sort_field_number
                        WHERE l.form_id=$form_id
                        AND d.lead_id IS NULL

                    ) sorted1
                   $orderby
                ) sorted ON d.lead_id = sorted.id
                $search_sql
                LIMIT $offset,$page_size
            ) filtered ON filtered.id = l.id
            ORDER BY filtered.sort";

        return $sql;
    }

    private static function sort_by_default_field_query( $form_id, $sort_field, $sort_direction = 'DESC', $search = '', $offset = 0, $page_size = 30, $star = null, $read = null, $is_numeric_sort = false, $start_date = null, $end_date = null, $status = 'active', $payment_status = false ) {
        global $wpdb;

        if ( ! is_numeric( $form_id ) || ! is_numeric( $offset ) || ! is_numeric( $page_size ) ) {
            return '';
        }

        $lead_table_name        = self::get_lead_table_name();
        $lead_detail_table_name   = self::get_lead_details_table_name();

        $where = self::get_leads_where_sql( compact( 'form_id', 'search', 'status', 'star', 'read', 'start_date', 'end_date', 'payment_status' ) );

        $entry_meta          = self::get_entry_meta( $form_id );
        $entry_meta_sql_join = '';
        if ( false === empty( $entry_meta ) && array_key_exists( $sort_field, $entry_meta ) ) {
            $entry_meta_sql_join = $wpdb->prepare(
                "INNER JOIN
                (
                SELECT
                     lead_id, value as $sort_field
                     from $lead_detail_table_name
                     WHERE meta_key = %s
                ) lead_meta_data ON lead_meta_data.lead_id = l.id
                ", $sort_field
            );
            $is_numeric_sort     = $entry_meta[ $sort_field ]['is_numeric'];
        }
        $grid_columns = RGFormsModel::get_grid_columns( $form_id );
        if ( $sort_field != 'date_created' && false === array_key_exists( $sort_field, $grid_columns ) ) {
            $sort_field = 'date_created';
        }
        $orderby = $is_numeric_sort ? "ORDER BY ($sort_field+0) $sort_direction" : "ORDER BY $sort_field $sort_direction";

        $sql = "
            SELECT filtered.sort, l.*, d.field_number, d.value
            FROM $lead_table_name l
            INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
            INNER JOIN
            (
                SELECT @rownum:=@rownum + 1 as sort, id
                FROM
                (
                    SELECT distinct l.id
                    FROM $lead_table_name l
                    INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
                    $entry_meta_sql_join
                    $where
                    $orderby
                    LIMIT $offset,$page_size
                ) page
            ) filtered ON filtered.id = l.id
            ORDER BY filtered.sort";

        return $sql;
    }

    public static function get_leads_where_sql( $args ) {
        global $wpdb;

        extract(
            wp_parse_args(
                $args, array(
                    'form_id'        => false,
                    'search'         => '',
                    'status'         => 'active',
                    'star'           => null,
                    'read'           => null,
                    'start_date'     => null,
                    'end_date'       => null,
                    'payment_status' => null,
                    'is_default'     => true,
                )
            )
        );

        $where = array();

        if ( $is_default ) {
            $where[] = "l.form_id = $form_id";
        }

        if ( $search && $is_default ) {
            $where[] = $wpdb->prepare( 'value LIKE %s', "%$search%" );
        } else if ( $search ) {
            $where[] = $wpdb->prepare( 'd.value LIKE %s', "%$search%" );
        }

        if ( $star !== null && $status == 'active' ) {
            $where[] = $wpdb->prepare( "is_starred = %d AND status = 'active'", $star );
        }

        if ( $read !== null && $status == 'active' ) {
            $where[] = $wpdb->prepare( "is_read = %d AND status = 'active'", $read );
        }

        if ( $payment_status ) {
            $where[] = $wpdb->prepare( "payment_status = '%s'", $payment_status );
        }

        if ( $status !== null ) {
            $where[] = $wpdb->prepare( 'status = %s', $status );
        }

        if ( ! empty( $start_date ) ) {
            $where[] = "timestampdiff(SECOND, '$start_date', date_created) >= 0";
        }

        if ( ! empty( $end_date ) ) {
            $where[] = "timestampdiff(SECOND, '$end_date', date_created) <= 0";
        }

        return 'WHERE ' . implode( ' AND ', $where );
    }

    public static function get_lead_count( $form_id, $search, $star = null, $read = null, $start_date = null, $end_date = null, $status = null, $payment_status = null ) {
        global $wpdb;

        if ( ! is_numeric( $form_id ) ) {
            return '';
        }

        $lead_detail_table_name = self::get_lead_details_table_name();
        $lead_table_name   = self::get_lead_table_name();

        $where = self::get_leads_where_sql( compact( 'form_id', 'search', 'status', 'star', 'read', 'start_date', 'end_date', 'payment_status', 'is_default' ) );

        $sql = "SELECT count(distinct l.id)
                FROM $lead_table_name l
                INNER JOIN $lead_detail_table_name ld ON l.id = ld.lead_id
                $where";

        return $wpdb->get_var( $sql );
    }

    public static function get_lead_ids( $form_id, $search, $star = null, $read = null, $start_date = null, $end_date = null, $status = null, $payment_status = null ) {
        global $wpdb;

        if ( ! is_numeric( $form_id ) ) {
            return '';
        }

        $detail_table_name = self::get_lead_details_table_name();
        $lead_table_name   = self::get_lead_table_name();

        $where = self::get_leads_where_sql( compact( 'form_id', 'search', 'status', 'star', 'read', 'start_date', 'end_date', 'payment_status', 'is_default' ) );

        $sql = "SELECT distinct l.id
                FROM $lead_table_name l
                INNER JOIN $detail_table_name ld ON l.id = ld.lead_id
                $where";

        $rows = $wpdb->get_results( $sql );

        if ( empty( $rows ) ) {
            return array();
        }

        foreach ( $rows as $row ) {
            $lead_ids[] = $row->id;
        }

        return $lead_ids;

    }

    public static function get_submitted_fields( $form_id ) {
        global $wpdb;
        $lead_detail_table_name = self::get_lead_details_table_name();
        $field_list             = '';
        $fields                 = $wpdb->get_results( $wpdb->prepare( "SELECT DISTINCT field_number FROM $lead_detail_table_name WHERE form_id=%d", $form_id ) );
        foreach ( $fields as $field ) {
            $field_list .= intval( $field->field_number ) . ',';
        }

        if ( ! empty( $field_list ) ) {
            $field_list = substr( $field_list, 0, strlen( $field_list ) - 1 );
        }

        return $field_list;
    }

    public static function search_leads( $form_id, $search_criteria = array(), $sorting = null, $paging = null ) {

        global $wpdb;
        $sort_field = isset( $sorting['key'] ) ? $sorting['key'] : 'date_created'; // column, field or entry meta

        if ( is_numeric( $sort_field ) ) {
            $sql = self::sort_by_field_query( $form_id, $search_criteria, $sorting, $paging );
        } else {
            $sql = self::sort_by_column_query( $form_id, $search_criteria, $sorting, $paging );
        }

        //initializing rownum
        $wpdb->query( 'SELECT @rownum:=0' );

        GFCommon::log_debug( $sql );

        //getting results
        $results = $wpdb->get_results( $sql );

        $leads = self::build_lead_array( $results );

        return $leads;
    }

    public static function search_lead_ids( $form_id, $search_criteria = array() ) {
        global $wpdb;

        $detail_table_name = GFFormsModel::get_lead_details_table_name();
        $lead_table_name   = GFFormsModel::get_lead_table_name();

        $where = self::get_search_where( $form_id, $search_criteria );

        $sql = "SELECT distinct l.id
                FROM $lead_table_name l
                INNER JOIN $detail_table_name ld ON l.id = ld.lead_id
                $where
                ";

        $rows = $wpdb->get_results( $sql );

        if ( empty( $rows ) ) {
            return array();
        }

        foreach ( $rows as $row ) {
            $lead_ids[] = $row->id;
        }

        return $lead_ids;
    }

    public static function build_lead_array( $results ) {

        $leads   = array();
        $lead    = array();
        $form_id = 0;
        if ( is_array( $results ) && sizeof( $results ) > 0 ) {
            $form_id = $results[0]->form_id;
            $lead    = array( 'id' => $results[0]->id, 'form_id' => $results[0]->form_id, 'date_created' => $results[0]->date_created, 'is_starred' => intval( $results[0]->is_starred ), 'is_read' => intval( $results[0]->is_read ), 'ip' => $results[0]->ip, 'source_url' => $results[0]->source_url, 'post_id' => $results[0]->post_id, 'currency' => $results[0]->currency, 'payment_status' => $results[0]->payment_status, 'payment_date' => $results[0]->payment_date, 'transaction_id' => $results[0]->transaction_id, 'payment_amount' => $results[0]->payment_amount, 'payment_method' => $results[0]->payment_method, 'is_fulfilled' => $results[0]->is_fulfilled, 'created_by' => $results[0]->created_by, 'transaction_type' => $results[0]->transaction_type, 'user_agent' => $results[0]->user_agent, 'status' => $results[0]->status );

            $form         = RGFormsModel::get_form_meta( $form_id );
            $prev_lead_id = 0;
            foreach ( $results as $result ) {
                if ( $prev_lead_id <> $result->id && $prev_lead_id > 0 ) {
                    array_push( $leads, $lead );
                    $lead = array( 'id' => $result->id, 'form_id' => $result->form_id, 'date_created' => $result->date_created, 'is_starred' => intval( $result->is_starred ), 'is_read' => intval( $result->is_read ), 'ip' => $result->ip, 'source_url' => $result->source_url, 'post_id' => $result->post_id, 'currency' => $result->currency, 'payment_status' => $result->payment_status, 'payment_date' => $result->payment_date, 'transaction_id' => $result->transaction_id, 'payment_amount' => $result->payment_amount, 'payment_method' => $result->payment_method, 'is_fulfilled' => $result->is_fulfilled, 'created_by' => $result->created_by, 'transaction_type' => $result->transaction_type, 'user_agent' => $result->user_agent, 'status' => $result->status );
                }

                $field_value           = $result->value;
                $field_number          = (string) $result->field_number;
                $lead[ $field_number ] = $field_value;
                $prev_lead_id          = $result->id;
            }
        }


        //adding last lead.
        if ( sizeof( $lead ) > 0 ) {
            array_push( $leads, $lead );
        }

        //running entry through gform_get_field_value filter
        foreach ( $leads as &$lead ) {
            foreach ( $form['fields'] as $field ) {
                /* @var GF_Field $field */
                $inputs = $field->get_entry_inputs();
                // skip types html, page and section?
                if ( is_array( $inputs ) ) {
                    foreach ( $inputs as $input ) {
                        $lead[ (string) $input['id'] ] = gf_apply_filters( array( 'gform_get_input_value', $form['id'], $field->id, $input['id'] ), rgar( $lead, (string) $input['id'] ), $lead, $field, $input['id'] );
                    }
                } else {

                    $value = rgar( $lead, (string) $field->id );

                    if ( GFFormsModel::is_openssl_encrypted_field( $lead['id'], $field->id ) ) {
                        $value = GFCommon::openssl_decrypt( $value );
                    }

                    $lead[ $field->id ] = gf_apply_filters( array( 'gform_get_input_value', $form['id'], $field->id ), $value, $lead, $field, '' );

                }
            }
        }

        //add custom entry properties
        $entry_ids = array();
        foreach ( $leads as $l ) {
            $entry_ids[] = $l['id'];
        }
        $entry_meta           = GFFormsModel::get_entry_meta( $form_id );
        $meta_keys            = array_keys( $entry_meta );
        $entry_meta_data_rows = gform_get_meta_values_for_entries( $entry_ids, $meta_keys );
        foreach ( $leads as &$lead ) {
            foreach ( $entry_meta_data_rows as $entry_meta_data_row ) {
                if ( $entry_meta_data_row->lead_id == $lead['id'] ) {
                    foreach ( $meta_keys as $meta_key ) {
                        $lead[ $meta_key ] = $entry_meta_data_row->$meta_key;
                    }
                }
            }
        }

        return $leads;
    }

    private static function get_form_id_where( $form_id ) {
        global $wpdb;

        if ( is_array( $form_id ) ) {
            $in_str_arr    = array_fill( 0, count( $form_id ), '%d' );
            $in_str        = join( ',', $in_str_arr );
            $form_id_where = $wpdb->prepare( "l.form_id IN ($in_str)", $form_id );
        } else {
            $form_id_where = $form_id > 0 ? $wpdb->prepare( 'l.form_id=%d', $form_id ) : '';
        }

        return $form_id_where;
    }

    private static function sort_by_field_query( $form_id, $search_criteria, $sorting, $paging ) {
        global $wpdb;
        $sort_field_number = rgar( $sorting, 'key' );
        $sort_direction    = isset( $sorting['direction'] ) ? $sorting['direction'] : 'DESC';

        $is_numeric_sort = isset( $sorting['is_numeric'] ) ? $sorting['is_numeric'] : false;
        $offset          = isset( $paging['offset'] ) ? $paging['offset'] : 0;
        $page_size       = isset( $paging['page_size'] ) ? $paging['page_size'] : 20;

        if ( ! is_numeric( $sort_field_number ) || ! is_numeric( $offset ) || ! is_numeric( $page_size ) ) {
            return '';
        }

        $lead_detail_table_name = GFFormsModel::get_lead_details_table_name();
        $lead_table_name        = GFFormsModel::get_lead_table_name();

        $sort_direction = in_array( strtolower( $sort_direction ), array( 'desc', 'asc', 'rand' ) ) ? strtoupper( $sort_direction ) : 'ASC';

        $orderby = $is_numeric_sort ? "ORDER BY query, (value+0) $sort_direction" : "ORDER BY query, value $sort_direction";

        $form_id_where = self::get_form_id_where( $form_id );

        if ( ! empty( $form_id_where ) ) {
            $form_id_where = ' AND ' . $form_id_where;
        }

        $where = self::get_search_where( $form_id, $search_criteria );

        $field_number_min = $sort_field_number - 0.0001;
        $field_number_max = $sort_field_number + 0.0001;

        $sql = "
            SELECT filtered.sort, l.*, d.field_number, d.value
            FROM $lead_table_name l
            INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
            INNER JOIN (
                SELECT distinct sorted.sort, l.id
                FROM $lead_table_name l
                INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
                INNER JOIN (
                    SELECT @rownum:=@rownum+1 as sort, id FROM (
                        SELECT 0 as query, lead_id as id, value
                        FROM $lead_detail_table_name l
                        WHERE field_number between $field_number_min AND $field_number_max
                        $form_id_where

                        UNION ALL

                        SELECT 1 as query, l.id, d.value
                        FROM $lead_table_name l
                        LEFT OUTER JOIN $lead_detail_table_name d ON d.lead_id = l.id AND field_number between $field_number_min AND $field_number_max
                        WHERE d.lead_id IS NULL
                        $form_id_where

                    ) sorted1
                   $orderby
                ) sorted ON d.lead_id = sorted.id
                $where
                ORDER BY sorted.sort
                LIMIT $offset,$page_size
            ) filtered ON filtered.id = l.id

            ORDER BY filtered.sort";

        return $sql;
    }

    private static function sort_by_column_query( $form_id, $search_criteria, $sorting, $paging ) {
        global $wpdb;
        $sort_field      = isset( $sorting['key'] ) ? $sorting['key'] : 'date_created';
        $sort_direction  = isset( $sorting['direction'] ) ? $sorting['direction'] : 'DESC';
        $is_numeric_sort = isset( $sorting['is_numeric'] ) ? $sorting['is_numeric'] : false;
        $offset          = isset( $paging['offset'] ) ? $paging['offset'] : 0;
        $page_size       = isset( $paging['page_size'] ) ? $paging['page_size'] : 20;

        if ( ! is_numeric( $offset ) || ! is_numeric( $page_size ) ) {
            return '';
        }

        $lead_detail_table_name = GFFormsModel::get_lead_details_table_name();
        $lead_table_name        = GFFormsModel::get_lead_table_name();
        $lead_meta_table_name   = GFFormsModel::get_lead_meta_table_name();

        $entry_meta               = self::get_entry_meta( is_array( $form_id ) ? 0 : $form_id );
        $entry_meta_sql_join      = '';
        $sort_field_is_entry_meta = false;
        if ( false === empty( $entry_meta ) && array_key_exists( $sort_field, $entry_meta ) ) {
            $entry_meta_sql_join      = $wpdb->prepare(
                "
                LEFT JOIN
                (
                SELECT
                     lead_id, meta_value as $sort_field
                     from $lead_meta_table_name
                     WHERE meta_key=%s
                ) lead_meta_data ON lead_meta_data.lead_id = l.id
                ", $sort_field
            );
            $is_numeric_sort          = $entry_meta[ $sort_field ]['is_numeric'];
            $sort_field_is_entry_meta = true;
        } else {
            $db_columns = self::get_lead_db_columns();
            if ( $sort_field != 'date_created' && false === in_array( $sort_field, $db_columns ) ) {
                $sort_field = 'date_created';
            }
        }

        if ( $sort_field_is_entry_meta ) {
            $orderby = $is_numeric_sort ? "ORDER BY ($sort_field+0) $sort_direction" : "ORDER BY $sort_field $sort_direction";
        } else {
            $orderby = $is_numeric_sort ? "ORDER BY (l.$sort_field+0) $sort_direction" : "ORDER BY l.$sort_field $sort_direction";
        }

        $where = self::get_search_where( $form_id, $search_criteria );

        $sql = "
            SELECT filtered.sort, l.*, d.field_number, d.value
            FROM $lead_table_name l
            INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
            INNER JOIN
            (
                SELECT @rownum:=@rownum + 1 as sort, id
                FROM
                (
                    SELECT distinct l.id
                    FROM $lead_table_name l
                    INNER JOIN $lead_detail_table_name d ON d.lead_id = l.id
                    $entry_meta_sql_join
                    $where
                    $orderby
                    LIMIT $offset,$page_size
                ) page
            ) filtered ON filtered.id = l.id

            ORDER BY filtered.sort";

        return $sql;
    }

    private static function get_search_where( $form_id, $search_criteria ) {

        global $wpdb;

        $where_arr = array();

        $field_filters_where = self::get_field_filters_where( $form_id, $search_criteria );
        if ( ! empty( $field_filters_where ) ) {
            $where_arr[] = $field_filters_where;
        }

        $info_search_where = self::get_info_search_where( $search_criteria );

        if ( ! empty( $info_search_where ) ) {
            $where_arr[] = $info_search_where;
        }

        $search_operator = self::get_search_operator( $search_criteria );
        $where           = empty( $where_arr ) ? '' : '(' . join( " $search_operator ", $where_arr ) . ')';

        $date_range_where = self::get_date_range_where( $search_criteria );

        $where_and_clause_arr = array();
        if ( ! empty( $date_range_where ) ) {
            $where_and_clause_arr[] = $date_range_where;
        }

        $form_id_where = self::get_form_id_where( $form_id );

        if ( ! empty( $form_id_where ) ) {
            $where_and_clause_arr[] = $form_id_where;
        }

        $status_where = isset( $search_criteria['status'] ) ? $wpdb->prepare( 'l.status = %s', $search_criteria['status'] ) : '';
        if ( ! empty( $status_where ) ) {
            $where_and_clause_arr[] = $status_where;
        }

        $where_and_clause = join( ' AND ', $where_and_clause_arr );

        if ( ! empty( $where_and_clause ) ) {
            $where_and_clause = '(' . $where_and_clause . ')';
        }

        $where_parts = array();
        if ( ! empty( $where ) ) {
            $where_parts[] = $where;
        }
        if ( ! empty( $where_and_clause ) ) {
            $where_parts[] = $where_and_clause;
        }

        $where = join( ' AND ', $where_parts );

        if ( ! empty( $where ) ) {
            $where = 'WHERE ' . $where;
        }

        return $where;
    }

    public static function get_lead_db_columns() {
        return array( 'id', 'form_id', 'post_id', 'date_created', 'is_starred', 'is_read', 'ip', 'source_url', 'user_agent', 'currency', 'payment_status', 'payment_date', 'payment_amount', 'transaction_id', 'is_fulfilled', 'created_by', 'transaction_type', 'status', 'payment_method' );
    }

    private static function get_field_filters_where( $form_id, $search_criteria ) {
        global $wpdb;

        $field_filters = rgar( $search_criteria, 'field_filters' );

        $search_operator = self::get_search_operator( $search_criteria );

        if ( empty( $field_filters ) ) {
            return false;
        }

        unset( $field_filters['mode'] );

        $sql_array               = array();
        $lead_details_table_name = GFFormsModel::get_lead_details_table_name();
        $lead_meta_table_name    = GFFormsModel::get_lead_meta_table_name();
        if ( is_array( $form_id ) ) {
            $in_str_arr    = array_fill( 0, count( $form_id ), '%d' );
            $in_str        = join( ',', $in_str_arr );
            $form_id_where = $wpdb->prepare( "AND form_id IN ($in_str)", $form_id );
        } else {
            $form_id_where = $form_id > 0 ? $wpdb->prepare( 'AND form_id=%d', $form_id ) : '';
        }
        $info_column_keys = self::get_lead_db_columns();
        $entry_meta       = self::get_entry_meta( is_array( $form_id ) ? 0 : $form_id );
        array_push( $info_column_keys, 'id' );
        foreach ( $field_filters as $search ) {

            $key = rgar( $search, 'key' );
            if ( 'entry_id' === $key ) {
                $key = 'id';
            }

            if ( in_array( $key, $info_column_keys ) ) {
                continue;
            }

            $val = rgar( $search, 'value' );

            $operator = self::is_valid_operator( rgar( $search, 'operator' ) ) ? strtolower( $search['operator'] ) : '=';

            if ( 'is' == $operator ) {
                $operator = '=';
            }
            if ( 'isnot' == $operator ) {
                $operator = '<>';
            }
            if ( 'contains' == $operator ) {
                $operator = 'like';
            }

            $search_term = 'like' == $operator ? "%$val%" : $val;

            $search_type = rgar( $search, 'type' );
            if ( empty( $search_type ) ) {
                if ( empty( $key ) ) {
                    $search_type = 'global';
                } elseif ( is_numeric( $key ) ) {
                    $search_type = 'field';
                } else {
                    $search_type = 'meta';
                }
            }

            switch ( $search_type ) {
                case 'field':
                    $is_number_field = false;
                    if ( $operator != 'like' && ! is_array( $form_id ) && $form_id > 0 ) {
                        $form               = GFAPI::get_form( $form_id );
                        $field              = GFFormsModel::get_field( $form, $key );
                        if (  GFFormsModel::get_input_type( $field ) == 'number' ){
                            $is_number_field = true;
                        }
                    }



                    $upper_field_number_limit = (string) (int) $key === (string) $key ? (float) $key + 0.9999 : (float) $key + 0.0001;

                    if ( is_array( $search_term ) ) {
                        if ( in_array( $operator, array( '=', 'in' ) ) ) {
                            $operator = 'IN'; // Override operator
                        } elseif ( in_array( $operator, array( '!=', '<>', 'not in' ) ) ) {
                            $operator = 'NOT IN'; // Override operator
                        }
                        // Format in SQL and sanitize the strings in the list
                        $search_terms = array_fill( 0, count( $search_term ), '%s' );
                        $search_terms_in = $wpdb->prepare( '( ' . implode( ', ', $search_terms ) . ' )', $search_term );

                        /* doesn't support "<>" for checkboxes */
                        $field_query = $wpdb->prepare(
                            "
                        l.id IN
                        (
                        SELECT
                        lead_id
                        from {$lead_details_table_name}
                        WHERE (field_number BETWEEN %s AND %s AND value {$operator} {$search_terms_in})
                        {$form_id_where}
                        )", (float) $key - 0.0001, $upper_field_number_limit );
                    } else {
                        $search_term_placeholder = rgar( $search, 'is_numeric' ) || $is_number_field ? '%f' : '%s';
                        /* doesn't support "<>" for checkboxes */
                        $field_query = $wpdb->prepare(
                            "
                        l.id IN
                        (
                        SELECT
                        lead_id
                        from {$lead_details_table_name}
                        WHERE (field_number BETWEEN %s AND %s AND value {$operator} {$search_term_placeholder})
                        {$form_id_where}
                        )", (float) $key - 0.0001, $upper_field_number_limit, $search_term
                        );
                    }

                    if ( ( empty( $val ) && $operator != '<>' ) || $val === '%%' || ( $operator === '<>' && ! empty( $val ) ) ) {
                        $skipped_field_query = $wpdb->prepare(
                            "
                            l.id NOT IN
                            (
                            SELECT
                            lead_id
                            from {$lead_details_table_name}
                            WHERE (field_number BETWEEN %s AND %s)
                            {$form_id_where}
                            )", (float) $key - 0.0001, $upper_field_number_limit
                        );
                        $field_query = '(' . $field_query . ' OR ' . $skipped_field_query . ')';
                    }

                    $sql_array[] = $field_query;

                    /*
                    //supports '<>' for checkboxes but it doesn't scale
                    $sql_array[] = $wpdb->prepare("l.id IN
                                    (SELECT lead_id
                                    FROM
                                        (
                                            SELECT lead_id, value
                                            FROM $lead_details_table_name
                                            WHERE form_id = %d
                                            AND (field_number BETWEEN %s AND %s)
                                            GROUP BY lead_id
                                            HAVING value $operator %s
                                        ) ld
                                    )
                                    ", $form_id, (float)$key - 0.0001, $upper_field_number_limit, $val );
                    */
                    break;
                case 'global':

                    // include choice text
                    $forms = array();
                    if ( $form_id == 0 ) {
                        $forms = GFAPI::get_forms();
                    } elseif ( is_array( $form_id ) ) {
                        foreach ( $form_id as $id ){
                            $forms[] = GFAPI::get_form( $id );
                        }
                    } else {
                        $forms[] = GFAPI::get_form( $form_id );
                    }

                    $choice_texts_clauses = array();
                    foreach ( $forms as $form ) {
                        if ( isset( $form['fields'] ) ) {
                            $choice_texts_clauses_for_form = array();
                            foreach ( $form['fields'] as $field ) {
                                /* @var GF_Field $field */
                                $choice_texts_clauses_for_field = array();
                                if ( is_array( $field->choices ) ) {
                                    foreach ( $field->choices as $choice ) {
                                        if ( ( $operator == '=' && strtolower( $choice['text'] ) == strtolower( $val ) ) || ( $operator == 'like' && ! empty( $val ) && strpos( strtolower( $choice['text'] ), strtolower( $val ) ) !== false ) ) {
                                            if ( $field->gsurveyLikertEnableMultipleRows ){
                                                $choice_value = '%' . $choice['value'] . '%' ;
                                                $choice_search_operator = 'like';
                                            } else {
                                                $choice_value = $choice['value'];
                                                $choice_search_operator = '=';
                                            }
                                            $choice_texts_clauses_for_field[] = $wpdb->prepare( "(field_number BETWEEN %s AND %s AND value {$choice_search_operator} %s)", (float) $field->id - 0.0001, (float) $field->id + 0.9999, $choice_value );
                                        }
                                    }
                                }
                                if ( ! empty( $choice_texts_clauses_for_field ) ) {
                                    $choice_texts_clauses_for_form[] = join( ' OR ', $choice_texts_clauses_for_field );
                                }
                            }
                        }
                        if ( ! empty( $choice_texts_clauses_for_form ) ) {
                            $choice_texts_clauses[] = '(l.form_id = ' . $form['id'] . ' AND (' . join( ' OR ', $choice_texts_clauses_for_form ) . ' ))';
                        }
                    }
                    $choice_texts_clause = '';
                    if ( ! empty( $choice_texts_clauses) ){
                        $choice_texts_clause = join( ' OR ', $choice_texts_clauses );
                        $choice_texts_clause = "
                        l.id IN (
                        SELECT
                        lead_id
                        FROM {$lead_details_table_name}
                        WHERE {$choice_texts_clause} ) OR ";
                    }
                    $choice_value_clause = $wpdb->prepare( "value {$operator} %s", $search_term );
                    $sql_array[] = '(' . $choice_texts_clause . $choice_value_clause . ')';
                    break;
                case 'meta':
                    /* doesn't support '<>' for multiple values of the same key */

                    if ( is_array( $search_term ) ) {
                        if ( in_array( $operator, array( '=', 'in' ) ) ) {
                            $operator = 'IN';
                        } elseif ( in_array( $operator, array( '!=', '<>', 'not in' ) ) ) {
                            $operator = 'NOT IN';
                        }
                        $search_terms = array_fill( 0, count( $search_term ), '%s' );
                        $search_terms_in = $wpdb->prepare( '( ' . implode( ', ', $search_terms ) . ' )', $search_term );

                        $sql_array[] = $wpdb->prepare(
                            "
                        l.id IN
                        (
                        SELECT
                        lead_id
                        FROM $lead_meta_table_name
                        WHERE meta_key=%s AND meta_value $operator $search_terms_in
                        $form_id_where
                        )", $search['key'] );
                    } else {
                        $meta = rgar( $entry_meta, $key );
                        $placeholder = rgar( $meta, 'is_numeric' ) ? '%s' : '%s';
                        $search_term = 'like' == $operator ? "%$val%" : $val;
                        $sql_array[] = $wpdb->prepare(
                            "
                        l.id IN
                        (
                        SELECT
                        lead_id
                        FROM $lead_meta_table_name
                        WHERE meta_key=%s AND meta_value $operator $placeholder
                        $form_id_where
                        )", $search['key'], $search_term
                        );
                    }

                    break;
            }
        }

        $sql = empty( $sql_array ) ? '' : join( ' ' . $search_operator . ' ', $sql_array );

        return $sql;
    }

    /**
     * Checks whether the conditional logic operator passed in is valid.
     *
     * @since  2.0.7.20 Refactored and added filter gform_is_valid_conditional_logic_operator.
     * @access public
     *
     * @param string $operator Conditional logic operator.
     *
     * @return bool true if a valid operator, false if not.
     */
    public static function is_valid_operator( $operator ) {
        $operators = array( 'is', 'isnot', '<>', 'not in', 'in', '>', '<', 'contains', 'starts_with', 'ends_with', 'like', '>=', '<=' );
        $is_valid = in_array( strtolower( $operator ), $operators );
        /**
         * Filter which checks whether the operator is valid.
         *
         * Allows custom operators to be validated.
         *
         * @since 2.0.7.20
         *
         * @param bool   $is_valid Whether the operator is valid or not.
         * @param string $operator The conditional logic operator.
         */
        return apply_filters( 'gform_is_valid_conditional_logic_operator', $is_valid, $operator );
    }

    public static function get_entry_meta( $form_ids ) {
        global $_entry_meta;

        if ( $form_ids == 0 ) {
            $form_ids = GFFormsModel::get_form_ids();
        }

        if ( ! is_array( $form_ids ) ) {
            $form_ids = array( $form_ids );
        }
        $meta = array();
        foreach ( $form_ids as $form_id ) {
            if ( ! isset( $_entry_meta[ $form_id ] ) ) {
                $_entry_meta           = array();
                $_entry_meta[ $form_id ] = apply_filters( 'gform_entry_meta', array(), $form_id );
            }
            $meta = array_merge( $meta, $_entry_meta[ $form_id ] );
        }

        return $meta;
    }

    private static function get_date_range_where( $search_criteria ) {
        global $wpdb;

        if ( isset( $search_criteria['start_date'] ) ) {
            $start_date           = new DateTime( $search_criteria['start_date'] );
            $start_datetime_str = $start_date->format( 'Y-m-d H:i:s' );
            $start_date_str       = $start_date->format( 'Y-m-d' );
            if ( $start_datetime_str == $start_date_str  . ' 00:00:00' ) {
                $start_date_str = $start_date_str . ' 00:00:00';
            } else {
                $start_date_str = $start_date->format( 'Y-m-d H:i:s' );
            }

            $start_date_str_utc = get_gmt_from_date( $start_date_str );
            $where_array[] = $wpdb->prepare( 'date_created >= %s', $start_date_str_utc );
        }

        if ( isset( $search_criteria['end_date'] ) ) {

            $end_date         = new DateTime( $search_criteria['end_date'] );
            $end_datetime_str = $end_date->format( 'Y-m-d H:i:s' );
            $end_date_str     = $end_date->format( 'Y-m-d' );

            // extend end date till the end of the day unless a time was specified. 00:00:00 is ignored.
            if ( $end_datetime_str == $end_date_str . ' 00:00:00' ) {
                $end_date_str = $end_date->format( 'Y-m-d' ) . ' 23:59:59';
            } else {
                $end_date_str = $end_date->format( 'Y-m-d H:i:s' );
            }

            $end_date_str_utc = get_gmt_from_date( $end_date_str );

            $where_array[] = $wpdb->prepare( 'date_created <= %s', $end_date_str_utc );
        }


        $sql = empty( $where_array ) ? '' : '(' . join( ' AND ', $where_array ) . ')';

        return $sql;
    }

    private static function get_search_operator( $search_criteria ) {
        if ( ! isset( $search_criteria['field_filters'] ) ) {
            return '';
        }
        $field_filters = $search_criteria['field_filters'];

        $search_mode = isset( $field_filters['mode'] ) ? strtolower( $field_filters['mode'] ) : 'all';

        return strtolower( $search_mode ) == 'any' ? 'OR' : 'AND';
    }

    private static function get_info_search_where( $search_criteria ) {
        global $wpdb;

        $field_filters   = rgar( $search_criteria, 'field_filters' );
        $search_operator = self::get_search_operator( $search_criteria );

        if ( empty( $field_filters ) ) {
            return;
        }

        unset( $field_filters['mode'] );

        $info_column_keys = GFFormsModel::get_lead_db_columns();
        array_push( $info_column_keys, 'id' );
        $int_columns = array( 'id', 'post_id', 'is_starred', 'is_read', 'is_fulfilled', 'entry_id' );
        $where_array = array();
        foreach ( $field_filters as $filter ) {
            $key = strtolower( rgar( $filter, 'key' ) );

            if ( 'entry_id' === $key ) {
                $key = 'id';
            }

            if ( ! in_array( $key, $info_column_keys ) ) {
                continue;
            }

            $operator = GFFormsModel::is_valid_operator( rgar( $filter, 'operator' ) ) ? strtolower( $filter['operator'] ) : '=';

            $value = rgar( $filter, 'value' );

            if ( 'is' == $operator ) {
                $operator = '=';
            }
            if ( 'isnot' == $operator ) {
                $operator = '<>';
            }
            if ( 'contains' == $operator ) {
                $operator = 'like';
            }
            $search_term = 'like' == $operator ? "%$value%" : $value;
            if ( 'date_created' == $key && '=' === $operator ) {
                $search_date           = new DateTime( $search_term );
                $search_date_str       = $search_date->format( 'Y-m-d' );
                $date_created_start    = $search_date_str . ' 00:00:00';
                $date_create_start_utc = get_gmt_from_date( $date_created_start );
                $date_created_end      = $search_date_str . ' 23:59:59';
                $date_created_end_utc  = get_gmt_from_date( $date_created_end );
                $where_array[] = $wpdb->prepare( '(date_created >= %s AND date_created <= %s)', $date_create_start_utc, $date_created_end_utc );
            } else if ( in_array( $key, $int_columns ) ) {
                $where_array[] = $wpdb->prepare( "l.{$key} $operator %d", $search_term );
            } else {
                $where_array[] = $wpdb->prepare( "l.{$key} $operator %s", $search_term );
            }
        }


        $sql = empty( $where_array ) ? '' : join( " $search_operator ", $where_array );

        return $sql;
    }

    public static function count_search_leads( $form_id, $search_criteria = array() ) {
        global $wpdb;

        $lead_detail_table_name = self::get_lead_details_table_name();
        $lead_table_name   = GFFormsModel::get_lead_table_name();

        $where = self::get_search_where( $form_id, $search_criteria );

        $sql = "SELECT count(distinct l.id)
                FROM $lead_table_name l
                INNER JOIN $lead_detail_table_name ld ON l.id = ld.lead_id
                $where
                ";

        return $wpdb->get_var( $sql );
    }

    public static function get_entry_meta_counts() {
        global $wpdb;

        $detail_table_name = self::get_lead_details_table_name();
        $meta_table_name = self::get_lead_meta_table_name();
        $notes_table_name = self::get_lead_notes_table_name();

        $results = $wpdb->get_results(
            "
            SELECT
            (SELECT count(0) FROM $detail_table_name) as details,
            (SELECT count(0) FROM $meta_table_name) as meta,
            (SELECT count(0) FROM $notes_table_name) as notes
            "
        );

        return array(
            'details' => intval( $results[0]->details ),
            'meta'    => intval( $results[0]->meta ),
            'notes'   => intval( $results[0]->notes ),
        );

    }

    //functions to handle lead meta

    public static function gform_get_meta( $entry_id, $meta_key ) {
        global $wpdb, $_gform_lead_meta;

        //get from cache if available
        $cache_key = get_current_blog_id() . '_' . $entry_id . '_' . $meta_key;
        if ( array_key_exists( $cache_key, $_gform_lead_meta ) ) {
            return maybe_unserialize( $_gform_lead_meta[ $cache_key ] );
        }

        $table_name                   = RGFormsModel::get_lead_meta_table_name();
        $results                      = $wpdb->get_results( $wpdb->prepare( "SELECT meta_value FROM {$table_name} WHERE lead_id=%d AND meta_key=%s", $entry_id, $meta_key ) );
        $value                        = isset( $results[0] ) ? $results[0]->meta_value : null;
        $meta_value                   = $value === null ? false : maybe_unserialize( $value );
        $_gform_lead_meta[ $cache_key ] = $meta_value;

        return $meta_value;
    }

    public static function gform_get_meta_values_for_entries( $entry_ids, $meta_keys ) {
        global $wpdb;

        if ( empty( $meta_keys ) || empty( $entry_ids ) ) {
            return array();
        }

        $table_name            = RGFormsModel::get_lead_meta_table_name();
        $meta_key_select_array = array();

        foreach ( $meta_keys as $meta_key ) {
            $meta_key_select_array[] = "max(case when meta_key = '$meta_key' then meta_value end) as $meta_key";
        }

        $entry_ids_str = join( ',', $entry_ids );

        $meta_key_select = join( ',', $meta_key_select_array );

        $sql_query = "  SELECT
                    lead_id, $meta_key_select
                    FROM $table_name
                    WHERE lead_id IN ($entry_ids_str)
                    GROUP BY lead_id";

        $results = $wpdb->get_results( $sql_query );

        foreach ( $results as $result ) {
            foreach ( $meta_keys as $meta_key ) {
                $result->$meta_key = $result->$meta_key === null ? false : maybe_unserialize( $result->$meta_key );
            }
        }

        $meta_value_array = $results;

        return $meta_value_array;
    }


    /**
     * Add or update metadata associated with an entry
     *
     * Data will be serialized. Don't forget to sanitize user input.
     *
     * @param int $entry_id The ID of the entry to be updated
     * @param string $meta_key The key for the meta data to be stored
     * @param mixed $meta_value The data to be stored for the entry
     * @param int|null $form_id The form ID of the entry (optional, saves extra query if passed when creating the metadata)
     */
    public static function gform_update_meta( $entry_id, $meta_key, $meta_value, $form_id = null ) {
        global $wpdb, $_gform_lead_meta;
        if ( intval( $entry_id ) <= 0 ) {
            return;
        }
        $table_name = RGFormsModel::get_lead_meta_table_name();
        if ( false === $meta_value ) {
            $meta_value = '0';
        }
        $serialized_meta_value  = maybe_serialize( $meta_value );
        $meta_exists = gform_get_meta( $entry_id, $meta_key ) !== false;
        if ( $meta_exists ) {
            $wpdb->update( $table_name, array( 'meta_value' => $serialized_meta_value ), array( 'lead_id' => $entry_id, 'meta_key' => $meta_key ), array( '%s' ), array( '%d', '%s' ) );
        } else {

            if ( empty( $form_id ) ) {
                $lead_table_name = RGFormsModel::get_lead_table_name();
                $form_id         = $wpdb->get_var( $wpdb->prepare( "SELECT form_id from $lead_table_name WHERE id=%d", $entry_id ) );
            } else {
                $form_id = intval( $form_id );
            }

            $wpdb->insert( $table_name, array( 'form_id' => $form_id, 'lead_id' => $entry_id, 'meta_key' => $meta_key, 'meta_value' => $serialized_meta_value ), array( '%d', '%d', '%s', '%s' ) );
        }

        //updates cache
        $cache_key = get_current_blog_id() . '_' . $entry_id . '_' . $meta_key;
        if ( array_key_exists( $cache_key, $_gform_lead_meta ) ) {
            $_gform_lead_meta[ $cache_key ] = $meta_value;
        }
    }

    /**
     * Add metadata associated with an entry
     *
     * Data will be serialized; Don't forget to sanitize user input.
     *
     * @param int $entry_id The ID of the entry where metadata is to be added
     * @param string $meta_key The key for the meta data to be stored
     * @param mixed $meta_value The data to be stored for the entry
     * @param int|null $form_id The form ID of the entry (optional, saves extra query if passed when creating the metadata)
     */
    public static function gform_add_meta( $entry_id, $meta_key, $meta_value, $form_id = null ) {
        global $wpdb, $_gform_lead_meta;
        $table_name = RGFormsModel::get_lead_meta_table_name();
        if ( false === $meta_value ) {
            $meta_value = '0';
        }
        $serialized_meta_value  = maybe_serialize( $meta_value );

        if ( empty( $form_id ) ) {
            $lead_table_name = RGFormsModel::get_lead_table_name();
            $form_id         = $wpdb->get_var( $wpdb->prepare( "SELECT form_id from $lead_table_name WHERE id=%d", $entry_id ) );
        } else {
            $form_id = intval( $form_id );
        }

        $wpdb->insert( $table_name, array( 'form_id' => $form_id, 'lead_id' => $entry_id, 'meta_key' => $meta_key, 'meta_value' => $serialized_meta_value ), array( '%d', '%d', '%s', '%s' ) );

        $cache_key                      = get_current_blog_id() . '_' . $entry_id . '_' . $meta_key;
        $_gform_lead_meta[ $cache_key ] = $meta_value;
    }

    public static function gform_delete_meta( $entry_id, $meta_key = '' ) {
        global $wpdb, $_gform_lead_meta;
        $table_name  = RGFormsModel::get_lead_meta_table_name();
        $meta_filter = empty( $meta_key ) ? '' : $wpdb->prepare( 'AND meta_key=%s', $meta_key );

        $wpdb->query( $wpdb->prepare( "DELETE FROM {$table_name} WHERE lead_id=%d {$meta_filter}", $entry_id ) );

        //clears cache.
        $_gform_lead_meta = array();
    }

    /**
     * Updates an entire single Entry object.
     *
     * If the date_created value is not set then the current time UTC will be used.
     * The date_created value, if set, is expected to be in 'Y-m-d H:i:s' format (UTC).
     *
     * @since  1.8
     * @access public
     * @global $wpdb
     * @global $current_user
     *
     * @uses \GFAPI::get_entry
     * @uses \GFAPI::form_id_exists
     * @uses \GFFormsModel::get_ip
     * @uses \GFFormsModel::get_current_page_url
     * @uses \GFCommon::get_currency
     * @uses \GFFormsModel::get_lead_table_name
     * @uses \GFFormsModel::get_lead_details_table_name
     * @uses \GFFormsModel::get_form_meta
     * @uses \GFFormsModel::get_input_type
     * @uses \GF_Field::get_entry_inputs
     * @uses \GFFormsModel::get_lead_detail_id
     * @uses \GFFormsModel::update_lead_field_value
     * @uses \GFFormsModel::get_entry_meta
     * @uses \GFFormsModel::get_field
     *
     * @param array $entry    The Entry Object.
     * @param int   $entry_id Optional. If specified, the ID in the Entry Object will be ignored. Defaults to null.
     *
     * @return true|WP_Error Either True or a WP_Error instance
     */
    public static function update_entry( $entry, $entry_id = null ) {
        global $wpdb;

        if ( empty( $entry_id ) ) {
            if ( rgar( $entry, 'id' ) ) {
                $entry_id = absint( $entry['id'] );
            }
        } else {
            $entry['id'] = absint( $entry_id );
        }

        if ( empty( $entry_id ) ) {
            return new WP_Error( 'missing_entry_id', __( 'Missing entry id', 'gravityforms' ) );
        }

        $current_entry = $original_entry = GFFormsModel::get_entry( $entry_id );

        if ( ! $current_entry ) {
            return new WP_Error( 'not_found', __( 'Entry not found', 'gravityforms' ), $entry_id );
        }

        if ( is_wp_error( $current_entry ) ) {
            return $current_entry;
        }

        // Make sure the form id exists
        $form_id = rgar( $entry, 'form_id' );
        if ( empty( $form_id ) ) {
            $form_id = rgar( $current_entry, 'form_id' );
        }

        if ( false === self::form_id_exists( $form_id ) ) {
            return new WP_Error( 'invalid_form_id', __( 'The form for this entry does not exist', 'gravityforms' ) );
        }

        /**
         * Filters the entry before it is updated.
         *
         * @since Unknown
         *
         * @param array $entry          The Entry Object.
         * @param array $original_entry Te original Entry Object, before changes.
         */
        $entry = apply_filters( 'gform_entry_pre_update', $entry, $original_entry );

        // Use values in the entry object if present
        $post_id        = isset( $entry['post_id'] ) ? intval( $entry['post_id'] ) : 'NULL';
        $date_created   = isset( $entry['date_created'] ) ? sprintf( "'%s'", esc_sql( $entry['date_created'] ) ) : 'utc_timestamp()';
        $is_starred     = isset( $entry['is_starred'] ) ? $entry['is_starred'] : 0;
        $is_read        = isset( $entry['is_read'] ) ? $entry['is_read'] : 0;
        $ip             = isset( $entry['ip'] ) ? $entry['ip'] : GFFormsModel::get_ip();
        $source_url     = isset( $entry['source_url'] ) ? $entry['source_url'] : GFFormsModel::get_current_page_url();
        $user_agent     = isset( $entry['user_agent'] ) ? $entry['user_agent'] : 'API';
        $currency       = isset( $entry['currency'] ) ? $entry['currency'] : GFCommon::get_currency();
        $payment_status = isset( $entry['payment_status'] ) ? sprintf( "'%s'", esc_sql( $entry['payment_status'] ) ) : 'NULL';
        $payment_date   = strtotime( rgar( $entry, 'payment_date' ) ) ? "'" . gmdate( 'Y-m-d H:i:s', strtotime( "{$entry['payment_date']}" ) ) . "'" : 'NULL';
        $payment_amount = isset( $entry['payment_amount'] ) ? (float) $entry['payment_amount'] : 'NULL';
        $payment_method = isset( $entry['payment_method'] ) ? $entry['payment_method'] : '';
        $transaction_id = isset( $entry['transaction_id'] ) ? sprintf( "'%s'", esc_sql( $entry['transaction_id'] ) ) : 'NULL';
        $is_fulfilled   = isset( $entry['is_fulfilled'] ) ? intval( $entry['is_fulfilled'] ) : 'NULL';
        $status         = isset( $entry['status'] ) ? $entry['status'] : 'active';

        global $current_user;
        $user_id = isset( $entry['created_by'] ) ?  absint( $entry['created_by'] ) : '';
        if ( empty( $user_id ) ) {
            $user_id = $current_user && $current_user->ID ? absint( $current_user->ID ) : 'NULL';
        }

        $transaction_type = isset( $entry['transaction_type'] ) ? intval( $entry['transaction_type'] ) : 'NULL';

        $lead_table = GFFormsModel::get_lead_table_name();
        $sql = $wpdb->prepare(
            "
                UPDATE $lead_table
                SET
                form_id = %d,
                post_id = {$post_id},
                date_created = {$date_created},
                is_starred = %d,
                is_read = %d,
                ip = %s,
                source_url = %s,
                user_agent = %s,
                currency = %s,
                payment_status = {$payment_status},
                payment_date = {$payment_date},
                payment_amount = {$payment_amount},
                transaction_id = {$transaction_id},
                is_fulfilled = {$is_fulfilled},
                created_by = {$user_id},
                transaction_type = {$transaction_type},
                status = %s,
                payment_method = %s
                WHERE
                id = %d
                ", $form_id, $is_starred, $is_read, $ip, $source_url, $user_agent, $currency, $status, $payment_method, $entry_id
        );
        $result     = $wpdb->query( $sql );
        if ( false === $result ) {
            return new WP_Error( 'update_entry_properties_failed', __( 'There was a problem while updating the entry properties', 'gravityforms' ), $wpdb->last_error );
        }

        // Only save field values for fields that currently exist in the form. The rest in $entry will be ignored. The rest in $current_entry will get deleted.

        $lead_detail_table = GFFormsModel::get_lead_details_table_name();
        $current_fields    = $wpdb->get_results( $wpdb->prepare( "SELECT id, field_number FROM $lead_detail_table WHERE lead_id=%d", $entry_id ) );

        $form = GFFormsModel::get_form_meta( $form_id );

        $form = gf_apply_filters( array( 'gform_form_pre_update_entry', $form_id ), $form, $entry, $entry_id );

        foreach ( $form['fields'] as $field ) {
            /* @var GF_Field $field */
            $type = GFFormsModel::get_input_type( $field );
            if ( in_array( $type, array( 'html', 'page', 'section' ) ) ) {
                continue;
            }
            $inputs = $field->get_entry_inputs();
            if ( is_array( $inputs ) ) {
                foreach ( $field->inputs as $input ) {
                    $input_id = (string) $input['id'];
                    if ( isset( $entry[ $input_id ] ) ) {
                        if ( $entry[ $input_id ] != $current_entry[ $input_id ] ) {
                            $lead_detail_id = GFFormsModel::get_lead_detail_id( $current_fields, $input_id );
                            $result         = GFFormsModel::update_lead_field_value( $form, $entry, $field, $lead_detail_id, $input_id, $entry[ $input_id ] );
                            if ( false === $result ) {
                                return new WP_Error( 'update_input_value_failed', __( 'There was a problem while updating one of the input values for the entry', 'gravityforms' ), $wpdb->last_error );
                            }
                        }
                        unset( $current_entry[ $input_id ] );
                    }
                }
            } else {
                $field_id    = $field->id;
                $field_value = isset( $entry[ (string) $field_id ] ) ? $entry[ (string) $field_id ] : '';
                if ( $field_value != $current_entry[ $field_id ] ) {
                    $lead_detail_id = GFFormsModel::get_lead_detail_id( $current_fields, $field_id );
                    $result         = GFFormsModel::update_lead_field_value( $form, $entry, $field, $lead_detail_id, $field_id, $field_value );
                    if ( false === $result ) {
                        return new WP_Error( 'update_field_values_failed', __( 'There was a problem while updating the field values', 'gravityforms' ), $wpdb->last_error );
                    }
                }
                unset( $current_entry[ $field_id ] );
            }
        }

        // Save the entry meta values - only for the entry meta currently available for the form, ignore the rest.
        $entry_meta = self::get_entry_meta( $form_id );
        if ( is_array( $entry_meta ) ) {
            foreach ( array_keys( $entry_meta ) as $key ) {
                if ( isset( $entry[ $key ] ) ) {
                    if ( $entry[ $key ] != $current_entry[ $key ] ) {
                        gform_update_meta( $entry_id, $key, $entry[ $key ] );
                    }
                    unset( $current_entry[ $key ] );
                }
            }
        }

        // Now delete remaining values from the old entry.

        if ( is_array( $entry_meta ) ) {
            foreach ( array_keys( $entry_meta ) as $meta_key ) {
                if ( isset( $current_entry[ $meta_key ] ) ) {
                    gform_delete_meta( $entry_id, $meta_key );
                    unset( $current_entry[ $meta_key ] );
                }
            }
        }

        foreach ( $current_entry as $k => $v ) {
            $lead_detail_id = GFFormsModel::get_lead_detail_id( $current_fields, $k );
            $field          = GFFormsModel::get_field( $form, $k );
            $result         = GFFormsModel::update_lead_field_value( $form, $entry, $field, $lead_detail_id, $k, '' );
            if ( false === $result ) {
                return new WP_Error( 'update_field_values_failed', __( 'There was a problem while updating the field values', 'gravityforms' ), $wpdb->last_error );
            }
        }

        /**
         * Fires after the Entry is updated.
         *
         * @since Unknown.
         *
         * @param array $lead           The entry object after being updated.
         * @param array $original_entry The entry object before being updated.
         */
        gf_do_action( array( 'gform_post_update_entry', $form_id ), $entry, $original_entry );

        return true;
    }

    /**
     * Private.
     *
     * @since  1.8
     * @access private
     * @ignore
     */
    public static function form_id_exists( $form_id ) {
        global $wpdb;
        $form_table_name = GFFormsModel::get_form_table_name();
        $form_id         = intval( $form_id );
        $result          = $wpdb->get_var(
            $wpdb->prepare(
                " SELECT count(id) FROM {$form_table_name}
                  WHERE id=%d", $form_id
            )
        );

        $result = intval( $result );

        return $result > 0;
    }

    /**
     * Adds a single Entry object.
     *
     * Intended to be used for importing an entry object. The usual hooks that are triggered while saving entries are not fired here.
     * Checks that the form id, field ids and entry meta exist and ignores legacy values (i.e. values for fields that no longer exist).
     *
     * @since  1.8
     * @access public
     * @global $wpdb
     * @global $current_user
     *
     * @uses GFAPI::form_id_exists()
     * @uses GFFormsModel::get_ip()
     * @uses GFFormsModel::get_current_page_url()
     * @uses GFCommon::get_currency()
     * @uses GFFormsModel::get_lead_table_name()
     * @uses GF_Field::get_entry_inputs()
     * @uses GFFormsModel::update_lead_field_value()
     * @uses GFFormsModel::get_entry_meta()
     * @uses GFAPI::get_entry()
     *
     * @param array $entry The Entry Object.
     *
     * @return int|WP_Error Either the new Entry ID or a WP_Error instance.
     */
    public static function add_entry( $entry ) {
        global $wpdb;

        if ( ! is_array( $entry ) ) {
            return new WP_Error( 'invalid_entry_object', __( 'The entry object must be an array', 'gravityforms' ) );
        }

        // Make sure the form id exists.
        $form_id = rgar( $entry, 'form_id' );
        if ( empty( $form_id ) ) {
            return new WP_Error( 'empty_form_id', __( 'The form id must be specified', 'gravityforms' ) );
        }

        if ( false === self::form_id_exists( $form_id ) ) {
            return new WP_Error( 'invalid_form_id', __( 'The form for this entry does not exist', 'gravityforms' ) );
        }

        // Use values in the entry object if present
        $post_id        = isset( $entry['post_id'] ) ? intval( $entry['post_id'] ) : 'NULL';
        $date_created   = isset( $entry['date_created'] ) && $entry['date_created'] != '' ? sprintf( "'%s'", esc_sql( $entry['date_created'] ) ) : 'utc_timestamp()';
        $is_starred     = isset( $entry['is_starred'] ) ? $entry['is_starred'] : 0;
        $is_read        = isset( $entry['is_read'] ) ? $entry['is_read'] : 0;
        $ip             = isset( $entry['ip'] ) ? $entry['ip'] : GFFormsModel::get_ip();
        $source_url     = isset( $entry['source_url'] ) ? $entry['source_url'] : esc_url_raw( GFFormsModel::get_current_page_url() );
        $user_agent     = isset( $entry['user_agent'] ) ? $entry['user_agent'] : 'API';
        $currency       = isset( $entry['currency'] ) ? $entry['currency'] : GFCommon::get_currency();
        $payment_status = isset( $entry['payment_status'] ) ? sprintf( "'%s'", esc_sql( $entry['payment_status'] ) ) : 'NULL';
        $payment_date   = strtotime( rgar( $entry, 'payment_date' ) ) ? sprintf( "'%s'", gmdate( 'Y-m-d H:i:s', strtotime( "{$entry['payment_date']}" ) ) ) : 'NULL';
        $payment_amount = isset( $entry['payment_amount'] ) ? (float) $entry['payment_amount'] : 'NULL';
        $payment_method = isset( $entry['payment_method'] ) ? $entry['payment_method'] : '';
        $transaction_id = isset( $entry['transaction_id'] ) ? sprintf( "'%s'", esc_sql( $entry['transaction_id'] ) ) : 'NULL';
        $is_fulfilled   = isset( $entry['is_fulfilled'] ) ? intval( $entry['is_fulfilled'] ) : 'NULL';
        $status         = isset( $entry['status'] ) ? $entry['status'] : 'active';

        global $current_user;
        $user_id = isset( $entry['created_by'] ) ? absint( $entry['created_by'] ) : '';
        if ( empty( $user_id ) ) {
            $user_id = $current_user && $current_user->ID ? absint( $current_user->ID )  : 'NULL';
        }

        $transaction_type = isset( $entry['transaction_type'] ) ? intval( $entry['transaction_type'] ) : 'NULL';

        $lead_table = GFFormsModel::get_lead_table_name();
        $result     = $wpdb->query(
            $wpdb->prepare(
                "
                INSERT INTO $lead_table
                (form_id, post_id, date_created, is_starred, is_read, ip, source_url, user_agent, currency, payment_status, payment_date, payment_amount, transaction_id, is_fulfilled, created_by, transaction_type, status, payment_method)
                VALUES
                (%d, {$post_id}, {$date_created}, %d,  %d, %s, %s, %s, %s, {$payment_status}, {$payment_date}, {$payment_amount}, {$transaction_id}, {$is_fulfilled}, {$user_id}, {$transaction_type}, %s, %s)
                ", $form_id, $is_starred, $is_read, $ip, $source_url, $user_agent, $currency, $status, $payment_method
            )
        );
        if ( false === $result ) {
            return new WP_Error( 'insert_entry_properties_failed', __( 'There was a problem while inserting the entry properties', 'gravityforms' ), $wpdb->last_error );
        }
        // Reading newly created lead id.
        $entry_id    = $wpdb->insert_id;
        $entry['id'] = $entry_id;

        // Only save field values for fields that currently exist in the form.
        $form = GFFormsModel::get_form_meta( $form_id );
        foreach ( $form['fields'] as $field ) {
            /* @var GF_Field $field */
            if ( in_array( $field->type, array( 'html', 'page', 'section' ) ) ) {
                continue;
            }
            $inputs = $field->get_entry_inputs();
            if ( is_array( $inputs ) ) {
                foreach ( $inputs as $input ) {
                    $input_id = (string) $input['id'];
                    if ( isset( $entry[ $input_id ] ) ) {
                        $result = GFFormsModel::update_lead_field_value( $form, $entry, $field, 0, $input_id, $entry[ $input_id ] );
                        if ( false === $result ) {
                            return new WP_Error( 'insert_input_value_failed', __( 'There was a problem while inserting one of the input values for the entry', 'gravityforms' ), $wpdb->last_error );
                        }
                    }
                }
            } else {
                $field_id    = $field->id;
                $field_value = isset( $entry[ (string) $field_id ] ) ? $entry[ (string) $field_id ] : '';
                $result      = GFFormsModel::update_lead_field_value( $form, $entry, $field, 0, $field_id, $field_value );
                if ( false === $result ) {
                    return new WP_Error( 'insert_field_values_failed', __( 'There was a problem while inserting the field values', 'gravityforms' ), $wpdb->last_error );
                }
            }
        }

        // Add save the entry meta values - only for the entry meta currently available for the form, ignore the rest.
        $entry_meta = GFFormsModel::get_entry_meta( $form_id );
        if ( is_array( $entry_meta ) ) {
            foreach ( array_keys( $entry_meta ) as $key ) {
                if ( isset( $entry[ $key ] ) ) {
                    gform_update_meta( $entry_id, $key, $entry[ $key ], $form['id'] );
                }
            }
        }

        // Refresh the entry
        $entry = GFAPI::get_entry( $entry['id'] );

        /**
         * Fires after the Entry is added using the API.
         *
         * @since  1.9.14.26
         *
         * @param array $entry The Entry Object added.
         * @param array $form  The Form Object added.
         */
        do_action( 'gform_post_add_entry', $entry, $form );

        return $entry_id;
    }

    /**
     * Updates a single field of an entry.
     *
     * @since  1.9
     * @access public
     * @global $wpdb
     *
     * @uses GFAPI::get_entry()
     * @uses GFAPI::get_form()
     * @uses GFFormsModel::get_field()
     * @uses GFFormsModel::get_lead_details_table_name()
     * @uses GFFormsModel::update_lead_field_value()
     *
     * @param int    $entry_id The ID of the Entry object.
     * @param string $input_id The id of the input to be updated. For single input fields such as text, paragraph, website, drop down etc... this will be the same as the field ID.
     *                         For multi input fields such as name, address, checkboxes, etc... the input id will be in the format {FIELD_ID}.{INPUT NUMBER}. ( i.e. "1.3" ).
     *                         The $input_id can be obtained by inspecting the key for the specified field in the $entry object.
     * @param mixed  $value    The value to which the field should be set.
     *
     * @return bool|array Whether the entry property was updated successfully. If there's an error getting the entry, the entry object.
     */
    public static function update_entry_field( $entry_id, $input_id, $value ) {
        global $wpdb;

        $entry = GFAPI::get_entry( $entry_id );
        if ( is_wp_error( $entry ) ) {
            return $entry;
        }

        $form = GFAPI::get_form( $entry['form_id'] );
        if ( ! $form ) {
            return false;
        }

        $field = GFFormsModel::get_field( $form, $input_id );

        $input_id_min = (float) $input_id - 0.0001;
        $input_id_max = (float) $input_id + 0.0001;

        $lead_details_table_name = GFFormsModel::get_lead_details_table_name();

        $lead_detail_id = $wpdb->get_var( $wpdb->prepare( "SELECT id FROM {$lead_details_table_name} WHERE lead_id=%d AND field_number BETWEEN %s AND %s", $entry_id, $input_id_min, $input_id_max ) );

        $result = true;
        if ( ! isset( $entry[ $input_id ] ) || $entry[ $input_id ] != $value ){
            $result = GFFormsModel::update_lead_field_value( $form, $entry, $field, $lead_detail_id, $input_id, $value );
        }

        return $result;
    }

    public static function get_lead_detail_id( $current_fields, $field_number ) {
        foreach ( $current_fields as $field ) {
            if ( $field->field_number == $field_number ) {
                return $field->id;
            }
        }

        return 0;
    }

    /**
     * Updates an existing field value in the database.
     *
     * @param array $form
     * @param array $lead
     * @param GF_Field $field
     * @param int $lead_detail_id
     * @param string $input_id
     * @param string $value
     *
     * @return bool
     */
    public static function update_lead_field_value( $form, $lead, $field, $lead_detail_id, $input_id, $value ) {
        global $wpdb;

        /**
         * Filter the value before it's saved to the database.
         *
         * @since 1.5.0
         * @since 1.8.6 Added the $input_id parameter.
         * @since 1.9.14 Added form and field specific versions.
         *
         * @param string|array $value The fields input value.
         * @param array $lead The current entry object.
         * @param GF_Field $field The current field object.
         * @param array $form The current form object.
         * @param string $input_id The ID of the input being saved or the field ID for single input field types.
         */
        $value = apply_filters( 'gform_save_field_value', $value, $lead, $field, $form, $input_id );
        $value = apply_filters( "gform_save_field_value_{$form['id']}", $value, $lead, $field, $form, $input_id );

        if ( is_object( $field ) ) {
            $value = apply_filters( "gform_save_field_value_{$form['id']}_{$field->id}", $value, $lead, $field, $form, $input_id );
        }

        if ( is_array( $value ) ) {
            GFCommon::log_debug( __METHOD__ . '(): bailing. value is an array.' );
            return false;
        }

        $lead_id                = $lead['id'];
        $form_id                = $form['id'];
        $lead_detail_table      = self::get_lead_details_table_name();

        // Add emoji support.
        if ( version_compare( get_bloginfo( 'version' ), '4.2', '>=' ) ) {

            // Get charset for lead detail value column .
            $charset = $wpdb->get_col_charset( $lead_detail_table, 'value' );

            // If lead detail value column is UTF-8, encode emoji.
            if ( 'utf8' === $charset ) {
                $value = wp_encode_emoji( $value );
            }
        }

        if ( ! rgblank( $value ) ) {


            if ( $lead_detail_id > 0 ) {

                $result = $wpdb->update( $lead_detail_table, array( 'value' => $value ), array( 'id' => $lead_detail_id ), array( '%s' ), array( '%d' ) );
                if ( false === $result ) {
                    return false;
                }

            } else {
                $result = $wpdb->insert( $lead_detail_table, array( 'lead_id' => $lead_id, 'form_id' => $form_id, 'field_number' => $input_id, 'value' => $value ), array( '%d', '%d', '%F', '%s' ) );
                if ( false === $result ) {
                    return false;
                }

            }
        } else {
            //Deleting details for this field
            $sql    = $wpdb->prepare( "DELETE FROM $lead_detail_table WHERE lead_id=%d AND field_number BETWEEN %s AND %s ", $lead_id, doubleval( $input_id ) - 0.0001, doubleval( $input_id ) + 0.0001 );
            $result = $wpdb->query( $sql );
            if ( false === $result ) {
                return false;
            }
        }

        return true;
    }

    public static function add_note( $lead_id, $user_id, $user_name, $note, $note_type = 'note' ) {
        global $wpdb;

        $table_name = self::get_lead_notes_table_name();
        $sql        = $wpdb->prepare( "INSERT INTO $table_name(lead_id, user_id, user_name, value, note_type, date_created) values(%d, %d, %s, %s, %s, utc_timestamp())", $lead_id, $user_id, $user_name, $note, $note_type );

        $wpdb->query( $sql );

        /**
         * Fires after a note has been added to an entry
         *
         * @param int    $wpdb->insert_id The row ID of this note in the database
         * @param int    $lead_id         The ID of the entry that the note was added to
         * @param int    $user_id         The ID of the current user adding the note
         * @param string $user_name       The user name of the current user
         * @param string $note            The content of the note being added
         * @param string $note_type       The type of note being added.  Defaults to 'note'
         */
        do_action( 'gform_post_note_added', $wpdb->insert_id, $lead_id, $user_id, $user_name, $note, $note_type );
    }

    public static function delete_note( $note_id ) {
        global $wpdb;

        $table_name = self::get_lead_notes_table_name();

        $lead_id = $wpdb->get_var( $wpdb->prepare( "SELECT lead_id FROM $table_name WHERE id = %d", $note_id ) );

        /**
         * Fires before a note is deleted
         *
         * @param int $note_id The current note ID
         * @param int $lead_id The current lead ID
         */
        do_action( 'gform_pre_note_deleted', $note_id, $lead_id );

        $sql        = $wpdb->prepare( "DELETE FROM $table_name WHERE id=%d", $note_id );
        $wpdb->query( $sql );
    }

    public static function get_lead_count_all_forms( $status = 'active' ) {
        global $wpdb;

        $lead_table_name   = self::get_lead_table_name();

        $sql = $wpdb->prepare( "SELECT count(id)
                                FROM $lead_table_name
                                WHERE status=%s", $status );

        return $wpdb->get_var( $sql );
    }
}
Gravity Forms API API documentation generated by ApiGen