Question

我从ng-model获取数据来自html-＆gt; controllers-＆gt; services-＆gt;工厂保存后我得到了回复就像这样

这是我的回复

Resource {_id: "56fe5ddc414e823023576508", productcode: "101",  productname:"desktops",
__v: 0, isDeleted: false…}
$promise:undefined
$resolved:true
__v:0
_id:"56fe5ddc414e823023576508"
isDeleted:false
productcode:"101"
productitems:Array[1]
productname:"desktops"
__proto__:Object

myFacory代码：

factmodule.factory("DashboardItemFactory",function($resource){
var ProductItemnew=[];
    ProductItemInfoResourec=$resource("http://192.168.0.194:9070/productitems/:id", 
                    {"id": "@id","productid":"@productid"}, {update: {method: "PUT"}});
return{
    addProductItemnew:function(itemslist){

        var items = new ProductItemInfoResourec(itemslist);
        items.$save({"id":itemslist.productid},function(respdata){
            console.log(respdata)
            ProductItemnew.push(respdata);
            console.log("Data Saved...")
        },function(respdata){
            console.log("Error while saving the data");
        });
    },

}

})

请帮助我如何使数据成为承诺..

Answer 1

您需要从factory方法返回promise对象。资源具有$promise属性，这是您所需要的。所以它可能是这样的：

factmodule.factory("DashboardItemFactory", function($resource) {

  var ProductItemnew = [];

  ProductItemInfoResourec = $resource("http://192.168.0.194:9070/productitems/:id", {
    "id": "@id",
    "productid": "@productid"
  }, {
    update: {
      method: "PUT"
    }
  });

  return {
    addProductItemnew: function(itemslist) {

      var items = new ProductItemInfoResourec(itemslist);
      return items.$save({ id: itemslist.productid }).$promise.then(function(respdata) {
        ProductItemnew.push(respdata);
        console.log("Data Saved...", respdata)
        return respdata; // or return ProductItemnew;
      }, function(respdata) {
        console.log("Error while saving the data");
        throw new Error("Error while saving the data")
      });
    }

  }

})

只需确定您希望此承诺解决的内容：来自保存请求的原始响应或可能是ProductItemnew数组。

Answer 2

它适用于$ q

factmodule.factory("DashboardItemFactory",function($resource,$q){
var ProductItemnew=[];
ProductItemInfoResourec=$resource("http://192.168.0.194:9070/productitems/:id/:itemid", 
                    {"id": "@id","productid":"@productid"}, {update: {method: "PUT"}});
return{

    addProductItemnew:function(itemslist){

         var dfr = $q.defer();
        var items = new ProductItemInfoResourec(itemslist);
        items.$save({"id":itemslist.productid},function(respdata){

            console.log(respdata)
            ProductItemnew.push(respdata);
             dfr.resolve(ProductItemnew);
            console.log("Data Saved...")
             return dfr.promise;

        },function(respdata){
            console.log("Error while saving the data");
        });

    }
}

})

如何在保存时将数据作为承诺？

2 个答案: