nl_tokens: Add a reverse relation . Is added to the relations property on model s prototype and to existing instances of model in the store as well .
pl_tokens: function ( relation ) { var exists = _ . any ( this . _reverseRelations , function ( rel ) { return _ . all ( relation || [ ] , function ( val , <mask> ) { return val === rel [ key ] ; } ) ; } ) ; if ( ! exists && relation . model && relation . type ) { this . _reverseRelations . push ( relation ) ; this . _addRelation ( relation . model , relation ) ; this . retroFitRelation ( relation ) ; } }