獲取具有特定權限的所有用戶？

Question

如何獲得具有特定權限的所有用戶？例如，我們需要枚舉允許特定權限的所有用戶。這樣的代碼

var v=_userManager.GetAllUserWithSpecificPermission("ISO.Report.ReportV1"); 
foreach(var t in v) 
{ 
    Logger.Info(t.UserName); 
} 

Answer 1

您需要編寫一個查詢，以通過權限篩選用戶。這可以引導你：

var query =  from user in UserManager.Users 
       join ur in _userRoleRepository.GetAll() on user.Id equals ur.UserId into urJoined 
       from ur in urJoined.DefaultIfEmpty() 
       join up in _userPermissionRepository.GetAll() on new {UserId = user.Id, Name = input.Permission} equals 
       new {up.UserId, up.Name} into upJoined 
       from up in upJoined.DefaultIfEmpty() 
       join rp in _rolePermissionRepository.GetAll() on new {RoleId = ur.RoleId, Name = input.Permission} 
       equals new {rp.RoleId, rp.Name} into rpJoined 
       from rp in rpJoined.DefaultIfEmpty() 
       where (up != null && up.IsGranted) || (up == null && rp != null) 
       group user by user 
       into userGrouped 
       select userGrouped.Key; 

var users = await query.ToListAsync();