[英]Moving objects between two arrays
我有两个由包含对象的数组组成的列表。 我正在尝试将对象从一个列表移动到另一个列表,反之亦然。
控制器:
spApp.controller('userCtrl',
function userCtrl($scope,userService,groupService){
//Generate list of all users on the SiteCollection
$scope.users = userService.getUsers();
//array of objects selected through the dom
$scope.selectedAvailableGroups;
$scope.selectedAssignedGroups;
//array of objects the user actually belongs to
$scope.availableGroups;
$scope.assignedGroups;
//Generate all groups on the site
$scope.groups = groupService.getGroups();
//Boolean used to disable add/remove buttons
$scope.selectedUser = false;
//Take the selectedAvailableGroups, add user to those groups
//so push objects to "assignedGroups" array and remove from "avaiableGroups" array
$scope.addUserToGroup = function (){
userService.addUserToGroup($scope.selectedUser, $scope.selectedAvailableGroups, $scope.assignedGroups, $scope.availableGroups)
};
}
);
服务:
spApp.factory('userService', function(){
var addUserToGroup = function (selectedUser, selectedAvailableGroups, assignedGroups, availableGroups) {
var addPromise = [];
var selectLength = selectedAvailableGroups.length;
//Add user to selected groups on server
for (var i = 0; i < selectLength; i++) {
addPromise[i] = $().SPServices({
operation: "AddUserToGroup",
groupName: selectedAvailableGroups[i].name,
userLoginName: selectedUser.domain
});
};
//when all users added, update dom
$.when.apply($,addPromise).done(function (){
for (var i = 0; i < selectLength; i++) {
assignedGroups.push(selectedAvailableGroups[i]);
availableGroups.pop(selectedAvailableGroups[i]);
};
//alert(selectedUser.name + " added to: " + JSON.stringify(selectedAvailableGroups));
});
}
}
宾语:
[{
id: 85,
name: Dev,
Description:,
owner: 70,
OwnerIsUser: True
}]
HTML:
<div>
<label for="entityAvailable">Available Groups</label>
<select id="entityAvailable" multiple
ng-model="selectedAvailableGroups"
ng-options="g.name for g in availableGroups | orderBy:'name'">
</select>
</div>
<div id="moveButtons" >
<button type="button" ng-disabled="!selectedUser" ng-click="addUserToGroup()">Add User</button>
<button type="button" ng-disabled="!selectedUser" ng-click="removeUserFromGroup()">Remove</button>
</div>
<div>
<label for="entityAssigned">Assigned Groups</label>
<select id="entityAssigned" multiple
ng-model="selectedAssignedGroups"
ng-options="g.name for g in assignedGroups | orderBy:'name'">
</select>
</div>
目前,推送到分配的组有效,但仅当我单击其他内容或列表中的内容时才更新,而并非真正动态。 但是最大的问题是.pop()
,我认为它无法按预期工作。
$.when.apply($,addPromise).done()
似乎不是角度api或同步的。 因此,Angular不会意识到您的更改。 您必须将代码包装在$scope.$apply
调用中:
$scope.$apply(function(){
for (var i = 0; i < selectLength; i++) {
assignedGroups.push(selectedAvailableGroups[i]);
availableGroups.pop(selectedAvailableGroups[i]);
};
});
如果单击某些内容,将发生$ digest循环,您将看到所做的更改。
您的pop
无法正常工作,因为Array.pop
仅删除了最后一个元素。 我想那不是你想要的。 如果要删除特定元素,则应使用Array.splice()
,
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