finition DbUsersManager

WF_EF_Api/Contextlib/DbUsersManager.cs

@@ -35,12 +35,14 @@ namespace Contextlib
 
         public async Task<bool> ExistEmail(string email)
         {
-            throw new NotImplementedException();
+            IQueryable<Users> users = _context.users.Where(u=>u.Email == email);
+            return users != null;
         }
 
         public async Task<bool> ExistUsername(string username)
         {
-            throw new NotImplementedException();
+            IQueryable<Users> users = _context.users.Where(u => u.UserName == username);
+            return users != null;
         }
 
         public async Task<PaginationResult<Users>> GetAllUser()
@@ -51,7 +53,12 @@ namespace Contextlib
 
         public async Task<string> GetHashPassword(string username)
         {
-            throw new NotImplementedException();
+            Users? user = _context.users.Where(u=>u.UserName == username).FirstOrDefault();
+            if (user != null)
+            {
+                return "";
+            }
+            return user.Password;
         }
 
         public async Task<int> GetLastUserId()