通过这段代码,我试图在编辑之前或在事件视图中进行任何更改以实现取消按钮之前获取事件的副本,因此我将其复制到 oldValue 变量,但事件和 oldValue 始终为空,因为(我认为)它们在填充事件变量的事件工厂返回之前执行
我能做些什么来解决这个问题?
事件 html
<sw-event-view event="ev.event" ng-hide="ev.loading" ng-if="ev.view_type == 'event'" ></sw-event-view>
事件控制器
angular.module('App')
.controller('EventCtrl', function ($scope, $state, $http, EventFactory) {
ev.event = {};
console.log('controller start');
ev.view_type = 'event';
EventFactory.getEvent(1)
.then( function(r) {
ev.event = r.data.data.event;
console.log('event controller',ev.event);
ev.loading = false;
} ,handleHttpError);
console.log('end of controller');
}
事件视图html
<div>Something</div
<sw-basic-info ng-show="!edit_mode && selected_tab == 'basic info'" event="event"></sw-basic-info>
<sw-locations-list ng-show="(selected_tab == 'locations') && !edit_mode" locations="event.locations"></sw-locations-list>
事件视图指令
angular.module('App')
.directive('swEventView', function (EventFactory) {
return {
scope: {
event: "=",
},
templateUrl: 'template url',
restrict: 'E',
link: function (scope, element, attrs) {
console.log('event view scope.event', scope.event);
scope.oldValue = angular.copy(scope.event);
console.log('event view scope.oldValue', scope.oldValue);
}
}
事件工厂
angular.module('App')
.factory('EventFactory', function ($http, $q) {
var getEvent = function (id) {
console.log('event factory', id);
return $http.get(server + "event/"+id);
}
}
这就是我在日志中看到的
controller start
event factory 1
end of controller
event view scope.event Object {}
event view scope.oldValue Object {}
event controller
Object {id: 1, event_code: "5020048072", name: "Heathcote", short_name: "Hea", description: "Dolor unde molestiae fuga culpa aut excepturi iste et esse tempore illo quia quod aut."…}