我有一个500项(人)的集合,我在Angular ng-repeat指令中呈现。每个项目都有三个字段(FirstName,LastName,Company)。我希望用户能够查看详细信息/编辑每个渲染行下面的项目。我有一个按钮(Font Awesome square-plus),点击时需要显示项目详细信息/编辑。我不想在控制器中包含这个标记/逻辑,因为它已经渲染但隐藏起来很慢...... Chrome中有多秒。我认为这是由于所有的手表。
要解决此问题,我创建了一个指令,在运行时在当前记录下注入详细信息/编辑项。我尝试$编译标记以将其链接到ng-repeat行的当前范围。
问题..我认为我的范围有问题。该指令是ng-repeat块中的引用(p在Persons中),所以我认为我将在指令链接函数中传递记录范围。但我只能通过获取父作用域(范围。$ parent.p而不是scope.p)来获取记录对象。我不明白。
此外,一旦执行$ compile函数,我确实会在新的详细信息块中看到人员信息。但是改变并没有反映在当前的记录数据中,我也没有忽略细节块。
有什么建议吗?
标记:
<div class="row" ng-repeat="p in Persons">
<div class="col-lg-1">
<i class="fa fa-plus-square" ng-show="!p.showDetail" manage-details></i>
</div>
<div class="col-lg-2">{{::p.FirstName}}</div>
<div class="col-lg-2">{{::p.LastName}}</div>
<div class="col-lg-2">{{::p.Company}}</div>
<div id="marker{{$index}}"></div>
<hr ng-if="!$last" />
</div>
JS:
(function(){
'use strict';
angular
.module('ngRepeatMystery', [])
.controller('TestController', TestController)
.directive('manageDetails', manageDetails);
TestController.$inject = ['$scope'];
function TestController($scope) {
$scope.Persons = [
{ 'FirstName': 'Joe', 'LastName': 'Delbridge', 'Company': 'Dow', 'showDetail': false },
{ 'FirstName': 'Tony', 'LastName': 'Ingram', 'Company': 'Samtec', 'showDetail': false },
{ 'FirstName': 'Mike', 'LastName': 'Smolinski', 'Company': 'HCHB', 'showDetail': false },
{ 'FirstName': 'Lee', 'LastName': 'Shipman', 'Company': 'Cummins', 'showDetail': false },
{ 'FirstName': 'Eric', 'LastName': 'ONeal', 'Company': 'MSD', 'showDetail': false },
];
$scope.DismissDetails = function (index) {
$scope.Persons[index].showDetail = false;
var wrappedMonkey = angular.element($document[0].getElementById('details' + index));
angular.element(wrappedMonkey).hide();
}
};
manageDetails.$inject = ['$compile', '$document', '$timeout'];
function manageDetails($compile, $document, $timeout) {
return {
restrict: 'A',
scope: {},
link: function (scope, element, attrs) {
element.bind('click', function () {
// scope.$parent !!? WAT!
scope.$parent.p.showDetail = !scope.$parent.p.showDetail;
if (scope.$parent.p.showDetail) {
var index = scope.$parent.$index;
var wrappedMarker = angular.element($document[0].getElementById('marker' + index));
var details = getDetailsTemplate(index);
wrappedMarker.replaceWith(details);
var wrappedDetails = angular.element($document[0].getElementById('details' + index));
$compile(wrappedDetails.contents())(scope.$parent);
};
});
}
};
function getDetailsTemplate(index) {
var detailsTemplate =
"<div id=\"details" + index + "\" style=\"padding: 20px;\">" +
"<div class=\"row\">" +
"<div class=\"col-lg-2\"></div>" +
"<div class=\"col-lg-8\">" +
"<label>Last Name</label>" +
"<input ng-model=\"p.LastName\" placeholder=\"Last Name\"><br/>" +
"<label>First Name</label>" +
"<input ng-model=\"p.FirstName\" placeholder=\"First Name\"><br/>" +
"<label>Company</label>" +
"<input ng-model=\"p.Company\" placeholder=\"Company\"><br/>" +
"<button class=\"btn btn-primary\" ng-click=\"p.DismissDetails($index);\">Done</button><br/>" +
"</div>" +
"<div class=\"col-lg-2\"></div>" +
"</div>" +
"</div>";
return detailsTemplate;
}
};
})()
Plunker:http://plnkr.co/edit/64TcuhaNi2JcC1hzon15
我也对其他选择开放......
答案 0 :(得分:1)
好的,我认为您的代码存在很多问题。
我建议不要让指令修改自身之外的东西。
正如我之前评论的那样,不要使用$ parent。只需将数据作为属性传递。在调用$ compile时创建一个新的范围,以避免污染现有的范围。
我修改了你的代码以便它可以工作,但它仍然不是很漂亮:
http://plnkr.co/edit/eLNxewwFzobqTkQ4867n
HTML:
<div class="row" ng-repeat="p in Persons">
<div class="col-lg-1">
<i class="fa fa-plus-square" ng-show="!showDetail" manage-details monkey="p" index="$index" show-detail="showDetail"></i>
</div>
<div class="col-lg-2">{{p.FirstName}}</div>
<div class="col-lg-2">{{p.LastName}}</div>
<div class="col-lg-2">{{p.Company}}</div>
<div id="marker{{$index}}"></div>
<hr ng-if="!$last" />
</div>
JS:
return {
restrict: 'A',
scope: {
monkey: '=',
index: '=',
showDetail: '='
},
link: function (scope, element, attrs) {
var childScope;
element.bind('click', function () {
scope.showDetail = !scope.showDetail;
if (scope.showDetail) {
childScope && childScope.$destroy();
childScope = scope.$new();
var index = scope.index;
var wrappedMarker = angular.element($document[0].getElementById('marker' + index));
wrappedMarker.html(getDetailsTemplate(index));
childScope.p = angular.copy(scope.monkey);
childScope.dismissDetails = function () {
scope.showDetail = false;
scope.monkey = angular.copy(childScope.p);
wrappedMarker.html('');
};
$compile(wrappedMarker.contents())(childScope);
};
});
}
};
function getDetailsTemplate(index) {
var detailsTemplate =
"<div id=\"details" + index + "\" style=\"padding: 20px;\">" +
"<div class=\"row\">" +
"<div class=\"col-lg-2\"></div>" +
"<div class=\"col-lg-8\">" +
"<label>Last Name</label>" +
"<input ng-model=\"p.LastName\" placeholder=\"Last Name\"><br/>" +
"<label>First Name</label>" +
"<input ng-model=\"p.FirstName\" placeholder=\"First Name\"><br/>" +
"<label>Company</label>" +
"<input ng-model=\"p.Company\" placeholder=\"Company\"><br/>" +
"<button class=\"btn btn-primary\" ng-click=\"dismissDetails();\">Done</button><br/>" +
"</div>" +
"<div class=\"col-lg-2\"></div>" +
"</div>" +
"</div>";
return detailsTemplate;
}