Angularfire 通过复选框删除项目
Angularfire remove items by checkbox
我正在使用 Angularfire,我想通过复选框删除项目。
还有一个按钮可以执行 "checkAll",另一个按钮可以执行 "uncheckAll"
HTML
<div ng-app="app" ng-controller="Ctrl">
<li ng-repeat="item in newslist">
<input type="checkbox"> {{item.newsTitle}}
</li>
<br>
<button ng-click="checkAll()">check all</button>
<button ng-click="uncheckAll()">uncheck all</button>
<button ng-click="newslist.$remove(item)">Remove</button>
</div>
JS
var app = angular.module("app", ["firebase"]);
app.value('newsURL', 'https://XXX.firebaseio.com/XXX/');
app.factory('newsFactory', function($firebase, newsURL) {
return $firebase(new Firebase(newsURL)).$asArray();
});
app.controller('Ctrl', function($scope, $firebase, newsFactory) {
$scope.newslist = newsFactory;
$scope.checkAll = function() {
};
$scope.uncheckAll = function() {
};
});
我不知道如何通过复选框删除项目或如何使 "checkAll" 按钮起作用。
如果有人能告诉我您的答案,我将不胜感激。
这是您需要 check/uncheck 和删除项目的函数:
$scope.checkAll = function() {
$scope.newslist.forEach(function(el) {
el.checked = true;
$scope.newslist.$save(el);
});
};
$scope.uncheckAll = function() {
$scope.newslist.forEach(function(el) {
el.checked = false;
$scope.newslist.$save(el);
});
}
$scope.remove = function() {
$scope.newslist.forEach(function(item) {
if (item.checked) {
$scope.newslist.$remove(item);
}
});
};
演示: http://plnkr.co/edit/GsGVsGGjNwW4i1kTOuko?p=preview
我为 ngModel 指令添加了 checked
属性。
HTML 变为:
<li ng-repeat="item in newslist">
<input type="checkbox" ng-model="item.checked">{{item.newsTitle}}
</li>
<button ng-click="checkAll()">check all</button>
<button ng-click="uncheckAll()">uncheck all</button>
<button ng-click="remove()">Remove</button>
我正在使用 Angularfire,我想通过复选框删除项目。
还有一个按钮可以执行 "checkAll",另一个按钮可以执行 "uncheckAll"
HTML
<div ng-app="app" ng-controller="Ctrl">
<li ng-repeat="item in newslist">
<input type="checkbox"> {{item.newsTitle}}
</li>
<br>
<button ng-click="checkAll()">check all</button>
<button ng-click="uncheckAll()">uncheck all</button>
<button ng-click="newslist.$remove(item)">Remove</button>
</div>
JS
var app = angular.module("app", ["firebase"]);
app.value('newsURL', 'https://XXX.firebaseio.com/XXX/');
app.factory('newsFactory', function($firebase, newsURL) {
return $firebase(new Firebase(newsURL)).$asArray();
});
app.controller('Ctrl', function($scope, $firebase, newsFactory) {
$scope.newslist = newsFactory;
$scope.checkAll = function() {
};
$scope.uncheckAll = function() {
};
});
我不知道如何通过复选框删除项目或如何使 "checkAll" 按钮起作用。
如果有人能告诉我您的答案,我将不胜感激。
这是您需要 check/uncheck 和删除项目的函数:
$scope.checkAll = function() {
$scope.newslist.forEach(function(el) {
el.checked = true;
$scope.newslist.$save(el);
});
};
$scope.uncheckAll = function() {
$scope.newslist.forEach(function(el) {
el.checked = false;
$scope.newslist.$save(el);
});
}
$scope.remove = function() {
$scope.newslist.forEach(function(item) {
if (item.checked) {
$scope.newslist.$remove(item);
}
});
};
演示: http://plnkr.co/edit/GsGVsGGjNwW4i1kTOuko?p=preview
我为 ngModel 指令添加了 checked
属性。
HTML 变为:
<li ng-repeat="item in newslist">
<input type="checkbox" ng-model="item.checked">{{item.newsTitle}}
</li>
<button ng-click="checkAll()">check all</button>
<button ng-click="uncheckAll()">uncheck all</button>
<button ng-click="remove()">Remove</button>