Merge pull request #3593 from simong/belongs-to-many-target-reference

Default target reference in belongsToMany association to CASCADE

lib/associations/belongs-to-many.js

@@ -276,8 +276,8 @@ module.exports = (function() {
       targetAttribute.onDelete = this.through.model.rawAttributes[this.foreignIdentifier].onDelete || this.options.onDelete;
       targetAttribute.onUpdate = this.through.model.rawAttributes[this.foreignIdentifier].onUpdate || this.options.onUpdate;
 
-      if (!targetAttribute.onDelete) sourceAttribute.onDelete = 'CASCADE';
-      if (!targetAttribute.onUpdate) sourceAttribute.onUpdate = 'CASCADE';
+      if (!targetAttribute.onDelete) targetAttribute.onDelete = 'CASCADE';
+      if (!targetAttribute.onUpdate) targetAttribute.onUpdate = 'CASCADE';
     }
 
     this.through.model.rawAttributes[this.identifier] = Utils._.extend(this.through.model.rawAttributes[this.identifier], sourceAttribute);