How to get the data as a promise while saving? - angularjs

Question

I getting the data from ng-model from html->controllers->services->Factories
After saving i got response is like this
This my response
Resource {_id: "56fe5ddc414e823023576508", productcode: "101", productname:"desktops",
__v: 0, isDeleted: false…}
$promise:undefined
$resolved:true
__v:0
_id:"56fe5ddc414e823023576508"
isDeleted:false
productcode:"101"
productitems:Array[1]
productname:"desktops"
__proto__:Object
myFacory code:
factmodule.factory("DashboardItemFactory",function($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");
});
},
}
})
Please help me how make the data as promise..

Answer 1

You need to return promise object from the factory method. Resources have $promise property which is what you need. So it could be something like this:
factmodule.factory("DashboardItemFactory", function($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")
});
}
}
})
Just decide what you want this promise to resolve with: either original response from save request or maybe ProductItemnew array.

Answer 2

it is working for me with $q
factmodule.factory("DashboardItemFactory",function($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");
});
}
}
})