eventespresso / event-espresso-core

		//validate context

		//valid context?

		if ( !isset( $this->_contexts[$context] ) ) {

			throw new EE_Error( sprintf( __('The context %s is not a valid context for %s.', 'event_espresso'), $context, get_class( $this ) ) );

		}

		//valid sending_messenger?

		$not_valid_msgr = FALSE;

	 */

	public function get_data_for_context( $context, EE_Registration $registration, $id = 0 ) {

		//valid context?

		if ( !isset( $this->_contexts[$context] ) ) {

			throw new EE_Error( sprintf( __('The context %s is not a valid context for %s.', 'event_espresso'), $context, get_class( $this ) ) );

		}

		//get data and apply global and class specific filters on it.

		$data = apply_filters( 'FHEE__EE_message_type__get_data_for_context__data', $this->_get_data_for_context( $context, $registration, $id ), $this );

					}

				}

			}

			if( ! isset( $this->_cache_foreign_key_to_fields[ $model_name ] ) ){

				throw new EE_Error(sprintf(__("There is no foreign key field pointing to model %s on model %s",'event_espresso'),$model_name,get_class($this)));

			}

		}

		return $this->_cache_foreign_key_to_fields[ $model_name ];

	}