AngularJS controller with resources

this.RecipesCtrl = function($scope, $location, Recipe, Ingredient) {
  $scope.recipes = Recipe.index({});
  $scope.recipe = null;
  $scope.recipeFormVisible = false;
  $scope.existing_ingredients = [];
  Ingredient.index(function(ingredients) {
    return $scope.existing_ingredients = _(ingredients).map(function(ingredient) {
      return ingredient.name;
    });
  });
  $scope.save = function() {
    if ($scope.recipe.unsavedRecipe) {
      $scope.recipe = new Recipe($scope.recipe);
      return $scope.recipe.$create({}, function() {
        if ($scope.recipe.errors == null) {
          $scope.hideRecipeForm();
          return $scope.recipes.push($scope.recipe);
        }
      });
    } else {
      return $scope.recipe.$update({
        id: $scope.recipe.id
      }, function() {
        if ($scope.recipe.errors == null) {
          return $scope.hideRecipeForm();
        }
      });
    }
  };
  $scope.edit = function(recipe) {
    $scope.recipe = recipe;
    return $scope.showRecipeForm();
  };
  $scope.newRecipe = function() {
    $scope.recipe = {
      unsavedRecipe: true
    };
    return $scope.showRecipeForm();
  };
  $scope.showRecipeForm = function() {
    $scope.ingredients = Ingredient.index({});
    return $scope.recipeFormVisible = true;
  };
  return $scope.hideRecipeForm = function() {
    return $scope.recipeFormVisible = false;
  };
};

this.RecipesCtrl.$inject = ['$scope', '$location', 'Recipe', 'Ingredient'];