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<?php

namespace WPGMZA;

global $wpdb;
$WPGMZA_TABLE_NAME_MARKERS_HAS_CUSTOM_FIELDS = $wpdb->prefix . 'wpgmza_markers_has_custom_fields';

require_once(__DIR__ . '/class.custom-map-object-fields.php');

class CustomMarkerFields extends CustomMapObjectFields
{
    public function __construct($marker_id)
    {
        global $WPGMZA_TABLE_NAME_MARKERS_HAS_CUSTOM_FIELDS;
        
        $this->meta_table_name = $WPGMZA_TABLE_NAME_MARKERS_HAS_CUSTOM_FIELDS;
        
        CustomMapObjectFields::__construct($marker_id);
    }
    
    public static function getCustomFieldValues($map_id, $field_id)
    {
        global $wpdb;
        global $wpgmaps_tblname;
        global $WPGMZA_TABLE_NAME_MARKERS_HAS_CUSTOM_FIELDS;
        
        $qstr = "
            SELECT value
            FROM $WPGMZA_TABLE_NAME_MARKERS_HAS_CUSTOM_FIELDS
            WHERE object_id IN (
                SELECT id FROM $wpgmaps_tblname WHERE map_id = %d
            )
            AND field_id = %d
            GROUP BY value
        ";
        
        $params = array($map_id, $field_id);
        
        $stmt = $wpdb->prepare($qstr, $params);
        
        return $wpdb->get_results($stmt);
    }
    
}

// Hook into this filter to use your own subclass of CustomMarkerFields (for example, for custom layout)
add_filter('wpgmza_get_marker_custom_fields', 'WPGMZA\\get_marker_custom_fields');
function get_marker_custom_fields($marker_id)
{
    return new CustomMarkerFields($marker_id);
}