[英]call function in controller from template.html
我是AngularJS的新手,不知怎的,現在我經歷了許多網站,我可以創建一個顯示一些數據的指令。現在我需要通過點擊按鈕向控制器發送一些數據。 我需要知道這樣做的正確方法
我創造了這個插件
HTML
<!DOCTYPE html>
<html ng-app="app">
<head>
<script data-require="jquery@*" data-semver="2.2.0" src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.5/angular.min.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body ng-controller="movieDesc">
<div ng-repeat="m in movies" movies="m"></div>
</body>
</html>
指令和控制器
// Code goes here
angular.module('app', []);
angular.module('app').controller('movieDesc', function($scope) {
$scope.movies = [{
name: 'abc',
desc: 'this is desc text for the movie',
pic: 'http://png.clipart.me/graphics/thumbs/134/abstract-geometric-background-triangle-and-square-black_134053397.jpg'
}, {
name: 'def',
desc: 'this is desc text for the movie def',
pic: 'http://png.clipart.me/graphics/thumbs/201/abstract-modern-banner-background-of-geometric-shapes-abstract-geometric-form_201768245.jpg'
}, {
name: 'ghi',
desc: 'this is desc text for the movie ghi',
pic: 'http://www.cianellistudios.com/images/abstract-art/abstract-art-infinite-150.jpg'
}]
$scope.saveData = function(data) {
console.log(data);
}
});
angular.module('app').directive('movies', function() {
return {
templateUrl: "movieCard.html",
restrict: "EA",
scope: {
movies: '='
},
link: function(scope, element, attrs) {
element.addClass('moviesBox');
var clickedFn = function() {
alert("clicked");
};
console.log("console", element[0].querySelector('.btnSelect'));
var $this = element[0].querySelector('.btnSelect');
$($this).click(function() {
alert(scope.movies.desc)
})
}
}
})
我的模板
<div>
<div>
<b>Name:</b> {{movies.name}}
</div>
<div>
<b>Description:</b> {{movies.desc}}
</div>
<div>
<img src="{{movies.pic}}" />
</div>
<div>
<input type="text" ng-model="movies.someText">
</div>
<div>
<input class="btnSelect" type="button" value="Desc" ng-click="clickedFn()">
</div>
<div>
<input class="btnSelect" type="button" value="Save Data" ng-click="saveData({{movies}})">
</div>
</div>
我需要將數據發送到控制器的$scope.saveData()
函數,數據將通過文本框輸入。 我把它作為ng-model="movies.someText"
,我認為這是錯誤的方式。
所以請幫助我。
您需要將saveData作為參數傳遞,如下所示:
<body ng-controller="movieDesc">
<div ng-repeat="m in movies" movies="m" save-data="saveData()"></div>
你會像這樣回到你的指令中:
return {
templateUrl: "movieCard.html",
restrict: "EA",
scope: {
movies: '=',
saveData:'='
},
link: ...
然后在您的template.html中,您不需要使用“ {{}}
”:
<input class="btnSelect" type="button" value="Save Data" ng-click="saveData(movies)">
使用&
scope綁定 。
scope: {
movies: '=',
save: '&'
},
並在指令模板中
<input type="button" ng-click="save({movie: movies})" ...>
然后通過綁定控制器方法
<div ng-repeat="m in movies" movies="m" save="saveData(movie)"></div>
請注意,傳遞給控制器函數的參數名稱與指令模板中的對象鍵匹配。
https://plnkr.co/edit/9bF5FDea6wLn7vcGvEzU?p=preview
當你在那里時,使用ng-src
而不是src
來避免對不存在的圖像的404請求
<img ng-src="{{movies.pic}}" />
HTML
<body ng-controller="movieDesc">
<div ng-repeat="m in movies" movies="m">
<movies-dir
movies="m" save-data="saveData(movie)"></movies-dir>
</div>
</body>
指令和控制器
angular.module('app', []);
angular.module('app')
.controller('movieDesc', function($scope) {
$scope.movies = [/* movie object array data */]
$scope.saveData = function(movie) {
console.log(movie);
}
});
angular.module('app').directive('moviesDir', function() {
return {
templateUrl: "movieCard.html",
restrict: "EA",
scope: {
movies: '=',
saveData: '&'
},
link: function(scope, element, attrs) {
}
}
})
模板
<div>
<input class="btnSelect" type="button" value="Save Data" ng-click="saveData({ 'movie': movies })">
</div>
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