AngularJS:将params从控制器传递到服务

Question

我在上搞清楚如何从我的传递参数的麻烦angular controller来 service

#my controller  
'use strict';

angular.module('recipeapp')
  .controller('recipeCtrl', ['$scope', 'recipeService',
    function($scope, recipeService){
      $scope.recipeFormData={};
      $scope.recipeSave = function(){
        recipeService.saveRecipe();
      }


  }]);

#my service
'use strict';
angular.module('recipeapp').service('recipeService',['$http', function($http){

  this.saveRecipe = save;

  function save(callback){
     //calling external http api
  }

}]);

我在这里尝试做的是,$scope.formData从我的表单和控制器获取应该传递给service,根据我的理解,我不能$scope在里面使用service所以我需要找到一种传递$scope.formData给服务的方式

在控制器中,强硬的想法会是,recipeService.saveRecipe($scope.formData);但我不确定如何从服务中收集,

当我改变服务this.saveRecipe(val) = save;它不起作用:(

任何帮助都会得到满足

Answer 1

此示例演示了角度应用程序的正确结构:

• 控制器内的模型初始化
• 实现服务单例,并注入您的控制器
• 使用$ http promises异步调用Web API调用,并允许服务的调用者处理其成功/失败.
• 使用"controller as"语法从控制器公开函数,而不是直接从作用域公开函数.
• 双向数据模型绑定(文本框到配方和配方到文本框)

在控制器中初始化模型:

angular.module('recipeapp')
  .controller('recipeCtrl', ['$scope', 'recipeService',
    function($scope, recipeService){
      // initialize your model in you controller
      $scope.recipe={};

      // declare a controller function that delegates to your service to save the recipe
      this.saveRecipe = function(recipe) {
           // call the service, handle success/failure from within your controller
           recipeService.saveRecipe(recipe).success(function() { 
               alert('saved successfully!!!'); 
           }).error(function(){
               alert('something went wrong!!!');
           });

      }
  }]);

在配方服务中,定义saveRecipe函数:

angular.module('recipeapp').service('recipeService',['$http', function($http){

  // expose a saveRecipe function from your service
  // that takes a recipe object
  this.saveRecipe = function(recipe){
      // return a Promise object so that the caller can handle success/failure
      return $http({ method: 'POST', url: '/api/recipe/add', data: recipe});
  }

}]);

将食谱对象绑定到视图中; 添加一个按钮以调用saveRecipe控制器功能并保存配方(传入模型配方对象):

<div ng-app="recipeapp" ng-controller="recipeCtrl as ctrl">
   <form name="recipeForm">
    Recipe Name: <input type="text" ng-model="recipe.name" />
    <button ng-click="ctrl.saveRecipe(recipe)">Save Recipe</button>
    </form>
</div>