我有一个邮政实体Id和用户属性。 用户是IdentityUser。 我的实体没有UserId属性,因为我不需要它。如何检查EF核心中的主键和外键情况?
如何以最佳方式检查该帖子是否属于当前用户? 我想过这个
var currentUser = await userManager.GetUserAsync(httpAccessor.HttpContext.User);
if (!await context.Posts.FromSql(
@"SELECT TOP 1 UserId
FROM Posts
WHERE Id = {0}", postId).Any(Id => Id == currentUser.Id))
throw new InvalidOperationException("Post does not belong to current user.");
或本
if (!await context.Posts.AnyAsync(p => p.Id == post.Id && p.User.Id == currentUser.Id))
throw new InvalidOperationException("Post does not belong to current user.");
但它不工作。
这是第二个选项
SELECT CASE
WHEN EXISTS (
SELECT 1
FROM [Posts] AS [p]
INNER JOIN [AspNetUsers] AS [p.User] ON [p].[UserId] = [p.User].[Id]
WHERE ([p].[Id] = @__post_Id_0) AND ([p.User].[Id] = @__currentUser_Id_1))
THEN CAST(1 AS BIT) ELSE CAST(0 AS BIT)
END
你能告诉我们你的发布和用户模型代码吗? – theMohammedA