angularjs - How can I refactor this angular directive with a custom $resource factory method? -

i have following $resource factory:

app.factory "featurekey", ($resource) ->    $resource "/api/v1/feature_keys/:id", { id: "@id" } 

in directive, use so:

@search = (term) ->   featurekey.query(name: term).$promise.then (keys) =>     if keys.length > 0       @keys = keys     else       @keys = [{id: 0, name: term}]     @current.key = @keys[0] 

what i'd move of logic $resource factory directive method so:

@search = (term) ->   featurekey.search(term).$promise.then (keys) =>     @keys = keys     @current.key = @keys[0] 

you need have factory return object search method instead of returning resource:

app.factory "featurekey", ($resource) ->   r = $resource "/api/v1/feature_keys/:id", { id: "@id" }    search: (term) ->     r.query(name: term).$promise.then (keys) ->       if keys.length keys else [{id: 0, name: term}] 

then can use this:

featurekey.search(term).then (keys) =>   @keys = keys   @current.key = @keys[0]