我遇到了一个问题,我写了一个自定义指令来评价星星,用户可以通过点击星星从1到5评分,我成功实现了这一点。
<span starrating class="star-rating" rating="ratedValue" ></span>
但我使用相同的指令来显示客户评论,其中我有一个名为&#34; rating&#34;的隔离范围变量,这也很有效。
<span starrating class="star-rating" readOnlyFlag="true" rating="reviewItem.rating" ></span>
但这次我不希望用户点击并更改评分。因此,我在指令的隔离范围内声明另一个变量,名为&#34; readOnlyFlag&#34;。但是当我在指令中将readOnlyFlag的值赋值为属性时。我无法获得链接功能中的值。
指令代码如下:
angular.module("pageDirectives",[]).directive("starrating", function(){
return {
restrict : 'A',
template :'<ul class="list-inline">'
+ ' <li ng-repeat="star in stars" ng-class="{filled: $index<=selectedIndex, filled:$index<rating}" ng-click="toggleIndex($index)">'
+ ' <i class="glyphicon glyphicon-star fa-2x"></i>'
+ ' </li>'
+ '</ul>',
scope : {
rating : '=',
readOnlyFlag : '=',
},
link: function (scope) {
scope.stars=[1,2,3,4,5];
scope.toggleIndex= function(index){
if(!scope.readonlyFlag){
scope.selectedIndex=index;
scope.rating=index+1;
}
}
}
};
});
答案 0 :(得分:1)
您应该使用read-only-flag="true"
将值输入您的指令。请注意属性中的破折号。
隔离范围camelCase在属性中为虚线。
请查看下面的演示或此fiddle。
angular.module('demoApp', [])
.controller('mainController', function($scope) {
$scope.readOnly = false;
$scope.reviewItem = {
rating: 3
};
})
.directive("starrating", function(){
return {
restrict : 'A',
template :'<ul class="list-inline">'
+ ' <li ng-repeat="star in stars" ng-class="{filled: $index<=selectedIndex, filled:$index<rating}" ng-click="toggleIndex($index)">'
+ ' <i class="glyphicon glyphicon-star fa-2x"></i>'
+ ' </li>'
+ '</ul>',
scope : {
rating : '=',
readOnlyFlag : '=',
},
link: function (scope) {
scope.stars=[1,2,3,4,5];
scope.toggleIndex= function(index){
console.log(scope.readOnlyFlag)
if(!scope.readOnlyFlag){
scope.selectedIndex=index;
scope.rating=index+1;
}
}
}
};
});
&#13;
.filled {
color: red
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.min.css" rel="stylesheet"/>
<div ng-app="demoApp" ng-controller="mainController">
toggle read-only <input ng-model="readOnly" type="checkbox"/>
<span starrating class="star-rating" read-only-flag="readOnly" rating="rating" ></span>
<h2>
always read-only
</h2>
<span starrating class="star-rating" read-only-flag="true" rating="reviewItem.rating" ></span>
</div>
&#13;