我有点卡在添加属性并重新编译元素的指令上。
如果我对指令 ng-change 有一个范围,则不再触发(没有它它可以工作)。我的测试基于这个答案
的HTML
<div ng-app="myApp">
<div ng-controller='testController'>
<div ng-repeat="field in fields">
<input type="text" ng-model="ngModel[field.fieldName]" property="{{formParams.getProperties(field.fieldName)}}" update-attr ng-change="test()" />
</div>
</div>
</div>
指令:
angular.module('myApp', [])
.controller('testController', function ($scope) {
$scope.properties = {
"something": {
"style": "float:left;"
},
"something2": {
"style": "float:right;"
}
};
$scope.ngModel = {};
$scope.fields = [{
fieldName: 'something'
}, {
fieldName: 'something2'
}];
$scope.test = function () {
alert('i dont get triggered');
};
$scope.formParams = {
getProperties: function (fieldName) {
return $scope.properties[fieldName];
}
};
})
.directive('updateAttr', function ($compile) {
return {
restrict: 'A',
replace: true,
terminate: true,
scope: {
ngModel : '='
},
link: function (scope, elem, attrs) {
if (angular.isDefined(attrs['property']) && attrs['property'].lenght != 0) {
var json = JSON.parse(attrs['property']);
angular.forEach(json, function (value, key) {
elem.attr(key, value);
});
elem.removeAttr('property');
var $e = $compile(elem[0].outerHTML)(scope);
elem.replaceWith($e);
}
}
};
});
这里是小提琴的一个分支,用于测试指令的范围:fiddle
你有什么建议吗?