Javascript 在Angular和.Net MVC 5/Web API中使用http.delete
使用WebApi和MVC 5和Javascript 在Angular和.Net MVC 5/Web API中使用http.delete,javascript,angularjs,asp.net-web-api,asp.net-mvc-5,http-delete,Javascript,Angularjs,Asp.net Web Api,Asp.net Mvc 5,Http Delete,使用WebApi和MVC 5和 AngularJS 1.3.4版 我有一个API设置,它有一个收藏夹repository&ifavoriterepository&Ninject。这部分没问题,我可以通过UserId或SearchId检索收藏夹。我的收藏夹列表是围绕Search.cs模型构建的API: namespace RenderLib.Models { public class Search { public int SearchId { get; set; } [M
AngularJS 1.3.4版 我有一个API设置,它有一个
收藏夹repository
&ifavoriterepository
&Ninject。这部分没问题,我可以通过UserId或SearchId检索收藏夹。我的收藏夹列表是围绕Search.cs
模型构建的API:
namespace RenderLib.Models
{
public class Search
{
public int SearchId { get; set; }
[MaxLength(128), Column(TypeName = "nvarchar")]
public string UserId { get; set; }
public string Name { get; set; }
public string Description { get; set; }
public DateTime? Created { get; set; }
[MaxLength(2080), Column(TypeName = "nvarchar")]
public string SearchString { get; set; }
}
}
在我的数据层目录中,我有FavoritesRepository
和ifavoiritesrepository
,使用以下添加和删除方法。(添加方法适用于Angular just fine): /DataLayer/IFavoritesRepository.cs
namespace RenderLib.DataLayer
{
public interface IFavoritesRepository
{
IQueryable<Search> GetFavoritesByUserId(string id);
IQueryable<Search> GetFavoriteBySearchId(int id);
bool Save();
bool AddFavorite(Search newSearch);
bool DelFavorite(int id);
}
}
namespace RenderLib.DataLayer
{
public class FavoritesRepository : IFavoritesRepository
{
RenderLibContext _ctx;
public FavoritesRepository(RenderLibContext ctx)
{
_ctx = ctx;
}
public IQueryable<Search> GetFavoritesByUserId(string id)
{
return _ctx.Search.Where(s => s.UserId == id);
}
public IQueryable<Search> GetFavoriteBySearchId(int id)
{
return _ctx.Search.Where(s => s.SearchId == id);
}
public bool Save()
{
try
{
return _ctx.SaveChanges() > 0;
}
catch
{
// TODO log this error
return false;
}
}
public bool AddFavorite(Search newFavorite)
{
_ctx.Search.Add(newFavorite);
return true;
}
public bool DelFavorite(int id)
{
var search = _ctx.Search;
search.Remove(search.SingleOrDefault(s => s.SearchId == id));
return true;
}
}
}
public class FavoritesController : ApiController
{
private IFavoritesRepository _favRepo;
public FavoritesController(IFavoritesRepository favRepo)
{
_favRepo = favRepo;
}
public IEnumerable<Search> Get()
{
var id = User.Identity.GetUserId();
IQueryable<Search> results;
results = _favRepo.GetFavoritesByUserId(id);
var favorites = results.OrderByDescending(s => s.UserId == id);
return favorites;
}
public HttpResponseMessage Post([FromBody]Search newFavorite)
{
if (newFavorite.Created == null)
{
newFavorite.Created = DateTime.UtcNow;
}
if (_favRepo.AddFavorite(newFavorite) && _favRepo.Save())
{
return Request.CreateResponse(HttpStatusCode.Created, newFavorite);
}
return Request.CreateResponse(HttpStatusCode.BadRequest);
}
public HttpResponseMessage Delete(Search id)
{
if (_favRepo.DelFavorite(id) && _favRepo.Save())
{
return Request.CreateResponse(HttpStatusCode.Created, id);
}
return Request.CreateResponse(HttpStatusCode.BadRequest);
}
}
angular
.module("renderIndex", ["ngRoute","ngCookies"])
.config(config)
.controller("favoritesController", favoritesController)
.controller("newFavoriteController", newFavoriteController);
function config($routeProvider) {
$routeProvider
.when("/", {
templateUrl: "/ng-templates/favoritesView.html",
controller: "favoritesController",
controllerAs: "vm"
})
.when("/newfavorite", {
templateUrl: "/ng-templates/newFavoriteView.html",
controller: "newFavoriteController",
controllerAs: "vm"
})
.otherwise({ redirectTo: "/" });
};
function favoritesController($http) {
var vm = this;
vm.searches = [];
vm.isBusy = true;
$http.get("/api/favorites")
.success(function (result) {
vm.searches = result;
})
.error(function () {
alert('error/failed');
})
.then(function () {
vm.isBusy = false;
});
vm.delete = function (searchId) {
var url = "/api/favorites/" + searchId;
$http.delete(url)
.success(function (result) {
var newFavorite = result.data;
//TODO: merge with existing topics
alert("Delete Successfull");
removeFromArray(vm.searches, searchId);
})
.error(function () {
alert("Your broken, go fix yourself!");
})
.then(function () {
$window.location = "#/";
});
};
};
function removeFromArray(items, searchId) {
var index;
for (var i = 0; i < items.length; i++) {
if (items[i].searchId == searchId) {
index = i;
break;
}
}
if (index) {
items.splice(index, 1);
}
}
function newFavoriteController($http, $window, $cookies) {
var vm = this;
vm.newFavorite = {};
vm.newFavorite.searchString = $cookies.currentSearch;
vm.newFavorite.userId = $cookies.uId;
vm.save = function () {
$http.post("/api/favorites", vm.newFavorite)
.success(function (result) {
var newFavorite = result.data;
//TODO: merge with existing topics
alert("Thanks for your post");
})
.error(function () {
alert("Your broken, go fix yourself!");
})
.then(function () {
$window.location = "#/";
});
};
};
/ng templates/newFavoriteView.html路线:#/newfavorite
<div class="small-12 column"><h3>Saving Search</h3></div>
<div class="small-12 column">
<form name="newFavoriteForm" novalidate ng-submit="vm.save()">
<input name="userId" type="hidden"
ng-model="vm.newFavorite.userId" />
<input name="searchString" type="hidden"
ng-model="vm.newFavorite.searchString" />
<label for="name">Name</label>
<input name="name" type="text"
ng-model="vm.newFavorite.name" autofocus/>
<label for="description">Description</label>
<textarea name="description" rows="5" cols="30"
ng-model="vm.newFavorite.description"></textarea>
<input type="submit" class="tiny button radius" value="Save" /> |
<a href="#/" class="tiny button radius">Cancel</a>
</form>
</div>
调用delete函数。Omri不仅帮助我了解了如何将参数传递给函数的概念,还帮助我编写了一个函数来更新视图以显示删除的项。我非常感谢他的帮助。如果您觉得这很有用,请1给出他的答案。我将总结为一个答案,因为评论太忙了:) 由于视图中有
ng model=“vm.newFavorite.searchId”
,因此您可以获取您的searchId并使用它附加到url:
vm.delete = function (searchId) {
//API Controller will expect "/api/favorites/13" from an http delete
var url = "/api/favorites/" + searchId;
$http.delete(url)
.success(function (result) {
var newFavorite = result.data;
//TODO: merge with existing topics
alert("Delete Successfull");
removeFromArray(vm.searches, searchId);
})
.error(function () {
alert("Your broken, go fix yourself!");
})
.then(function () {
$window.location = "#/";
});
};
})
请注意,FavoritesController
中的Delete
函数现在只需要一个searchId
参数,因此您需要更改客户端或服务器上的名称,以便它们匹配,您肯定需要将服务器中变量的类型从Search
更改为string或Guid
编辑:在一次聊天讨论后,我们得出结论,删除表单元素,只需一个按钮,然后单击删除功能。对我有效的操作:将
$http.delete(“/api/favorites”,vm.delFavorite”)
更改为$http[“delete”](“/api/favorites”,vm.delFavorite)
顺便说一句,我只使用没有数据的URL,如果你使用数据,我认为它需要作为对象发送。是的,正如你所看到的,我是从Add/Post函数复制的,所以也许我应该只发送一个参数而不是对象,我真的在寻找一些关于最简单方法的建议。我会研究你的想法并继续研究,但我的问题是最终的解决方案。我不确定是我太累了,还是我只是错过了一个简单的概念,这让我被阻止了。是的,如果你有一个对象的标识符,$http.delete(url)
,其中url包含标识符应该是正确的选择。标识符是searchId。我假设我可以把它从视图中拉出来并传递给控制器,但我不确定具体怎么做。我是传递对象还是只传递id?我们将对象传递到视图并在其上重复的控制器中的语法,以及如何将该id返回到delete方法中?我不知道该怎么做。我希望我使用的教程能够对此有所了解。但是他们让我在我到达终点之前就被绞死了,但是我知道我已经很接近了。让我来做这个。如果遇到任何问题,我将更新源代码。我已更新了FavoritesRepository.cs
中的DelFavorite和控制器中的vm.delete()
函数。现在它更有意义了。但是我应该把searchId
放在表单的哪里呢?我应该能够从{s.searchId}中获取它,但是我如何将它传递回vm.delete()函数,该函数将它传递给WebApi控制器?@EricB您可以将它修改为ng click=“vm.delete({s.searchId}”)
,然后更新函数以接收参数。您能否查看我的视图和控制器,并告诉我语法是否正确?如果您想绕过WebApi
所期望的/id
,我只是在上面更新了它。然后您需要在WebApi控制器中声明删除操作:[FromUri]int searchId
<a href="javascript:void(0);" ng-click="vm.delete(s.searchId)">X</a>
vm.delete = function (searchId) {
//API Controller will expect "/api/favorites/13" from an http delete
var url = "/api/favorites/" + searchId;
$http.delete(url)
.success(function (result) {
var newFavorite = result.data;
//TODO: merge with existing topics
alert("Delete Successfull");
removeFromArray(vm.searches, searchId);
})
.error(function () {
alert("Your broken, go fix yourself!");
})
.then(function () {
$window.location = "#/";
});
};