function( relation ) {
			var coll = this.getCollection( relation.model, false );
			coll && coll.each( function( model ) {
				if ( !( model instanceof relation.model ) ) {
					return;
				}

				new relation.type( model, relation );
			}, this );
		}
function( relation ) {
			var coll = this.getCollection( relation.model, false );
			coll && coll.each( function( model ) {
				if ( !( model instanceof relation.model ) ) {
					return;
				}

				new relation.type( model, relation );
			}, this );
		}
function ( relation ) { var coll = this . getCollection ( relation . model , false ) ; coll && coll . each ( function ( model ) { if ( ! ( model instanceof relation . model ) ) { return ; } new relation . type ( model , relation ) ; } , this ) ; }
Add a 'relation' to all existing instances of 'relation.model' in the store
@param {Object} relation
Add a relation to all existing instances of relation . model in the store