添加数据时,NG-重复不更新列表 [英] ng-repeat not updating the list when adding data
问题描述
我的问题是,NG-重复不会自动更新数据。当我preSS添加PIN在我的code,元素正确添加到数据库中。如果我重新加载页面的数据显示正确,但不作为的角度应该。
根据记录,更新和删除工作正常。
在此先感谢
这是我的app.js code:
VAR应用= angular.module(应用程序,[]);app.controller(AppCtrl功能($ HTTP){
VAR应用=这一点;$ http.get(/ API /针)。成功(功能(数据){
app.pins = data.objects;
})app.addPin =功能(适用范围){
$ http.post(/ API /针,{头衔:新,形象:http://placekitten.com/200/200/?image=+ app.pins.length})
.success(功能(数据){
add.pins.push(数据);
})
}app.deletePin =功能(销){
$ http.delete(/ API /销/+ pin.id).success(功能(响应){
app.pins.splice(app.pins.indexOf(针),1)
})
}app.updatePin =功能(销){
$ http.put(/ API /销/+ pin.id,针);
}})
这是我的index.html文件:
< HTML和GT;
< HEAD>
<标题>引脚克隆LT; /标题>
&所述; SCRIPT SRC =角/ angular.js>&下; /脚本>
&所述; SCRIPT SRC =角/角resource.js>&下; /脚本>
<脚本SRC =JS / app.js>< / SCRIPT>
< /头>
<机身NG-应用=应用程序NG控制器=AppCtrl为app><按钮NG点击=app.addPin()>添加管脚和LT; /按钮>
< DIV NG重复=销app.pins>
< IMG NG-SRC ={{pin.image}}ALT =/>
< DIV CLASS =UI>
<输入类型=文本NG模型=pin.title/>
<按钮NG点击=app.updatePin(PIN)>更新和LT; /按钮>
<按钮NG点击=app.deletePin(PIN)>删除< /按钮>
< / DIV>
< / DIV>
< /身体GT;
< / HTML>
首先,你应该使用 $范围
(文件)。你可以阅读更多有关这个帖子。
因此您的控制器是这样的。
app.controller(AppCtrl,[$范围,$ HTTP
功能($范围,$ HTTP){ $ http.get(/ API /针)。成功(功能(数据){
$ scope.pins = data.objects;
}); $ scope.addPin =功能(){
....
}; $ scope.deletePin =功能(销){
....
}; $ scope.updatePin =功能(销){
....
};
}]);
HTML
<机身NG-应用=应用程序NG控制器=AppCtrl> <按钮NG点击=addPin()>添加管脚和LT; /按钮>
< DIV NG重复=针针脚>
< IMG NG-SRC ={{pin.image}}ALT =/>
< DIV CLASS =UI>
<输入类型=文本NG模型=pin.title/>
<按钮NG点击=updatePin(PIN)>更新和LT; /按钮>
<按钮NG点击=deletePin(PIN)>删除< /按钮>
< / DIV>
< / DIV>< /身体GT;
最后,来这里的核心部分。你应该叫 $适用
(文件),当你的模型改变。你可以阅读更多这个博客帖子。
$ HTTP
。员额(/ API /针,{
标题:新,
图片:
http://placekitten.com/200/200/?image=
+ $ scope.pins.length
})
.success(功能(数据){
$范围。$应用(函数(){
$ scope.pins.push(数据);
});
});
因此,完整的控制器code:
app.controller(AppCtrl,[$范围,$ HTTP
功能($范围,$ HTTP){ $ http.get(/ API /针)。成功(功能(数据){
$ scope.pins = data.objects;
}); $ scope.addPin =功能(){
$ HTTP
。员额(/ API /针,{
标题:新,
图片:
http://placekitten.com/200/200/?image=
+ $ scope.pins.length
})
.success(功能(数据){
$范围。$应用(函数(){
$ scope.pins.push(数据);
});
});
}; $ scope.deletePin =功能(销){
$ HTTP
.delete(/ API /销/+ pin.id)
.success(功能(响应){
$范围。$应用(函数(){
$ scope.pins.splice(
$ scope.pins.indexOf(针),1
);
});
});
}; $ scope.updatePin =功能(销){
$ http.put(/ API /销/+ pin.id,针);
};
}]);
my problem is that the ng-repeat is not updating automatically the data. When I press add pin in my code, the element is added correctly to the database. If I reload the page the data appear correctly, but not as angular should. For the record, the Update and delete are working correctly.
Thanks in advance
This is my app.js code:
var app = angular.module("app", []);
app.controller("AppCtrl", function ($http) {
var app = this;
$http.get("/api/pin").success(function (data) {
app.pins = data.objects;
})
app.addPin = function (scope) {
$http.post("/api/pin", {"title":"new", "image":"http://placekitten.com/200/200/?image=" + app.pins.length})
.success(function(data) {
add.pins.push(data);
})
}
app.deletePin = function (pin) {
$http.delete("/api/pin/" + pin.id).success(function(response) {
app.pins.splice(app.pins.indexOf(pin), 1)
})
}
app.updatePin = function (pin) {
$http.put("/api/pin/" + pin.id, pin);
}
})
This is my index.html file:
<html>
<head>
<title>Pin Clone</title>
<script src="angular/angular.js"></script>
<script src="angular/angular-resource.js"></script>
<script src="js/app.js"></script>
</head>
<body ng-app="app" ng-controller="AppCtrl as app">
<button ng-click="app.addPin()">Add Pin</button>
<div ng-repeat="pin in app.pins">
<img ng-src="{{ pin.image }}" alt=""/>
<div class="ui">
<input type="text" ng-model="pin.title"/>
<button ng-click="app.updatePin(pin)">Update</button>
<button ng-click="app.deletePin(pin)">Delete</button>
</div>
</div>
</body>
</html>
First of all, you should really use $scope
(Doc) in your controller. You can read more about the differences in this post.
Thus your controller would look like this.
app.controller("AppCtrl", ["$scope", "$http",
function ($scope, $http) {
$http.get("/api/pin").success(function (data) {
$scope.pins = data.objects;
});
$scope.addPin = function () {
....
};
$scope.deletePin = function (pin) {
....
};
$scope.updatePin = function (pin) {
....
};
}]);
HTML:
<body ng-app="app" ng-controller="AppCtrl">
<button ng-click="addPin()">Add Pin</button>
<div ng-repeat="pin in pins">
<img ng-src="{{ pin.image }}" alt=""/>
<div class="ui">
<input type="text" ng-model="pin.title"/>
<button ng-click="updatePin(pin)">Update</button>
<button ng-click="deletePin(pin)">Delete</button>
</div>
</div>
</body>
Finally, here comes the core part. You should call $apply
(Doc) when your models change. You can read more in this blog post.
$http
.post("/api/pin", {
title: "new",
image:
"http://placekitten.com/200/200/?image="
+ $scope.pins.length
})
.success(function(data) {
$scope.$apply(function() {
$scope.pins.push(data);
});
});
Thus, the full controller code:
app.controller("AppCtrl", ["$scope", "$http",
function ($scope, $http) {
$http.get("/api/pin").success(function (data) {
$scope.pins = data.objects;
});
$scope.addPin = function () {
$http
.post("/api/pin", {
title: "new",
image:
"http://placekitten.com/200/200/?image="
+ $scope.pins.length
})
.success(function(data) {
$scope.$apply(function() {
$scope.pins.push(data);
});
});
};
$scope.deletePin = function (pin) {
$http
.delete("/api/pin/" + pin.id)
.success(function(response) {
$scope.$apply(function() {
$scope.pins.splice(
$scope.pins.indexOf(pin), 1
);
});
});
};
$scope.updatePin = function (pin) {
$http.put("/api/pin/" + pin.id, pin);
};
}]);
这篇关于添加数据时,NG-重复不更新列表的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!