eventespresso / event-espresso-core

                        if( $otherObject instanceof EE_Base_Class ) {

                            $otherObject->clear_cache( $this->get_model()->get_this_model_name(), $this );

                        }

		} else {

			//this thing doesn't exist in the DB,  so just cache it

			if( ! $otherObjectModelObjectOrID instanceof EE_Base_Class){

				throw new EE_Error( sprintf(

					__( 'Before a model object is saved to the database, calls to _add_relation_to must be passed an actual object, not just an ID. You provided %s as the model object to a %s', 'event_espresso' ),

					$otherObjectModelObjectOrID,

					get_class( $this )

				));

			} else {

				$otherObject = $otherObjectModelObjectOrID;

			}

			$this->cache( $relationName, $otherObjectModelObjectOrID, $cache_id );

		}

                if( $otherObject instanceof EE_Base_Class ) {

                    //fix the reciprocal relation too

                    if( $otherObject->ID() ) {

	 * @return EE_Base_Class

	 */

	public function get_one_conflicting($obj_or_fields_array, $include_primary_key = true ){

		if($obj_or_fields_array instanceof EE_Base_Class){

			$fields_n_values = $obj_or_fields_array->model_field_array();

		}elseif( is_array($obj_or_fields_array)){

			$fields_n_values = $obj_or_fields_array;

		}else{

			throw new EE_Error(

				sprintf(

					__(

						"%s get_all_conflicting should be called with a model object or an array of field names and values, you provided %d",

						"event_espresso"

	 */

	public function get_all_copies($model_object_or_attributes_array, $query_params = array()){

		if($model_object_or_attributes_array instanceof EE_Base_Class){

			$attributes_array = $model_object_or_attributes_array->model_field_array();

		}elseif(is_array($model_object_or_attributes_array)){

			$attributes_array = $model_object_or_attributes_array;

		}else{

			throw new EE_Error(sprintf(__("get_all_copies should be provided with either a model object or an array of field-value-pairs, but was given %s", "event_espresso"),$model_object_or_attributes_array));

		}

		//even copies obviously won't have the same ID, so remove the primary key

		//from the WHERE conditions for finding copies (if there is a primary key, of course)

		if($this->has_primary_key_field() && isset($attributes_array[$this->primary_key_name()])){