/// <summary>
/// 取消收藏歌曲
/// </summary>
/// <param name="response"></param>
/// <param name="request"></param>
/// <param name="cancellationToken"></param>
public async Task CollectionSongCancel([Required] ResponseMessage response, [Required] SongCollectionRequest request, CancellationToken cancellationToken = default(CancellationToken))
{
// Check arguments.
if (request.User == null || request.User.Id == null)
{
Def.Response.Wrap(response, Def.Response.BadRequsetCode, "请求体未包含系统用户信息，用户未登陆不能进行收藏歌曲操作");
return;
}
if (request.SongId == null)
{
Def.Response.Wrap(response, Def.Response.BadRequsetCode, "取消歌曲收藏，其ID不能为空");
return;
}
// Check whether user exist.
var user = TheUsers.ById(request.User.Id).SingleOrDefault();
if (user == null)
{
Def.Response.Wrap(response, Def.Response.NotFoundCode, Def.User.NotFoundMsg);
return;
}
// Check song exist.
var songs = TheSongs.ById(request.SongId);
if (songs.Count() == 0)
{
Def.Response.Wrap(response, Def.Response.BadRequsetCode, "你所取消收藏的歌曲不存在");
return;
}
// Check play list exist.
var playListId = TheUsers.FindPlayListIdByType(request.User.Id, Def.PlayList.Type.Collection).SingleOrDefault();
if (playListId == null)
{
Def.Response.Wrap(response, Def.Response.NotFoundCode, "收藏歌单未找到，可能的原因是创建账号时没有默认创建收藏歌单！");
return;
}
// Check the correlation between songs and songs.
var playListSong = _RelPlayListSongStore.ById(request.User.Id, playListId, request.SongId).SingleOrDefault();
if (playListSong == null)
{
Def.Response.Append(response, "你所取消收藏的歌曲不在你的收藏歌单中！"); // 修改ResponseMessage方法，添加追加函数？
return;
}
else
{
await _RelPlayListSongStore.Delete(request.User.Id, playListSong, cancellationToken);
response.Append("歌曲取消收藏成功！");
}
}
/// <summary>
/// 新建或更新，当第一次创建待办时，传入name和pwd，之后传入id和pwd
/// </summary>
/// <param name="response"></param>
/// <param name="request"></param>
/// <param name="cancellationToken"></param>
public async Task CreateOrUpdate([Required] ResponseMessage <TodoItemJson> response, [FromBody] ModelRequest <TodoItemJson> request, CancellationToken cancellationToken = default(CancellationToken))
{
UserBase user = await UserChecck(response, request.User);
if (user == null)
{
return;
}
if (request.model == null)
{
response.Wrap(ResponseDefine.BadRequset, "待办项为空，无法执行操作");
return;
}
else
{
// 不存在ID，创建操作
if (string.IsNullOrWhiteSpace(request.model.Id))
{
// 创建User与Todo的关联
TodoItem todo = await Store.Create(new TodoItem
{
Id = Guid.NewGuid().ToString(),
Name = request.model.Name,
Content = request.model.Content,
ExpectTime = request.model.ExpectTime,
_CreateUserId = user.Id
}, cancellationToken);
response.Extension = Mapper.Map <TodoItemJson>(todo);
response.Append("新建待办项成功");
return;
}
// 待办项ID存在，更新操作
else
{
// Id 是否有效，是否存在User与Todo的关联以及todo是否存在
TodoItem todo = await Store.ById(user.Id, request.model.Id).SingleOrDefaultAsync(cancellationToken);
if (todo == null)
{
response.Wrap(ResponseDefine.NotFound, "找不到该待办项");
return;
}
else
{
todo.Name = request.model.Name;
todo.Content = request.model.Content;
todo.ExpectTime = request.model.ExpectTime; // 期望时间，最后的时刻
todo.IsComplete = request.model.IsComplete;
if (request.model.IsComplete)
{
todo.ActualTime = DateTime.Now;
}
todo._UpdateUserId = user.Id;
todo._UpdateTime = user._UpdateTime;
response.Extension = Mapper.Map <TodoItemJson>(await Store.Update(todo, cancellationToken));
response.Append("更新待办项成功");
return;
}
}
}
}