devinivy / funk Goto Github PK

Anyone with the ViewBehavior should not be mutating state. While this is a simple rule to follow, funk should also have the ability to crush anyone who attempts to mutate state from a view. Its enforcement should probably be toggleable.

Imagine a collection users. We want friends to be a list of objects in that collection, with paths from users to be linked to the appropriate items in friends. Currently deriveList() does provide this functionality. However, we'd like the list of friend ids to be dynamic rather than a one-time assignment.

Example,

this.friendIds = [3, 5, 8, 13];
this.deriveDynList('friends', 'usersCollection', 'friendIds');
this.push('friendIds', 21); // Notifies friends.splices
this.set(['usersCollection', 21, 'name'], 'Copernicus'); // Notifies friends.#4.name