如何使用angularfire改变firebase数组的属性

添加控制器/strong>

app.controller("AddRecipeController", ["$scope", "createRecipes", function($scope, createRecipes) {
$scope.recipes = createRecipes;
$scope.addRecipe = function() {
  $scope.recipes.$add({
    title: $scope.title,
    lead: $scope.lead,
    keyword: $scope.keyword,
    ingredient: $scope.ingredient,
    instructions: $scope.instructions
  });
  alert("Your recipe has been succefully saved!")
  // reset the recipe input
  $scope.recipe = "";
};}]);

app.factory("createRecipes", ["$firebaseArray",function($firebaseArray) {
 var ref = new Firebase("https://fiery-inferno-8595.firebaseio.com/recipes/");
 return $firebaseArray(ref);}]);

<section id="{{recipe.$id}}" class="recipe-description editor">
<form ng-submit="addRecipe()">
    <section class="headColumn">
        <div class="mySearch">
            <span>My search: </span>
            <span ng-bind="search.$"></span>
        </div>
        <h2>
            <input type="text" ng-model="title" name="recipeTitle" ng-value="recipe.title" required="">-
            <input type="text" ng-model="lead" name="recipeLead" ng-value="recipe.lead" required="">
        </h2>
         <ul class="keywords">
            <li><label></label>Categories: </li>
            <li ng-repeat="keyword in keywords track by $index">
                <input type="text" ng-model="keywords[$index]" name="recipeKeyword" ng-value="recipe.keywords" placeholder="Add a keyword">
                <button class="remove-field" ng-show="$last" ng-click="removeKeyword()">-</button>
            </li>
            <button class="add-field" ng-click="addKeyword()">+</button>
        </ul>
    </section>
    <section class="sideColumn">
        <h4>Ingredients</h4>
        <ul class="ingredients">
            <li ng-repeat="ingredient in ingredients track by $index">
                <input type="text" ng-model="ingredients[$index]" name="recipeIngredient" ng-value="recipe.ingredients" placeholder="Add an ingredient">
                <button class="remove-field" ng-show="$last" ng-click="removeIngredient()">-</button>
            </li>
            <button class="add-field" ng-click="addIngredient()">+</button>
        </ul>
    </section>
    <section class="mainColumn">
        <div class="readytime">
            <h4>Time until ready</h4>
            <ul>
                <li>
                    <span>Preperation Time: </span>
                    <input type="text" ng-model="preptime" name="recipePreptime" ng-value="recipe.preptime" placeholder="Add preperation Time">
                </li>
                <li>
                    <span>Cooking Time: </span>
                    <input type="text" ng-model="cookingtime" name="recipeCookingtime" ng-value="recipe.cookingtime" placeholder="Add cooking Time">
                </li>
            </ul>
        </div>
        <div class="instructions">
            <h4>Instructions</h4>
            <!--TO DO: This input should work like textarea -->
            <input type="text" ng-model="instructions" name="recipeInstructions" ng-value="recipe.instructions">
        </div>
    </section>
    <button ng-click="addRecipe()" ng-hide="recipe" type="submit">Save the Recipe</button>
    <button ng-click="editRecipe()" type="submit" ng-show="recipe">Update the Recipe</button>
</form>