Implement two query, remove those NotImplementedException

Author: Chen

Src/AspNet.Identity.Oracle/UserStore.cs

@@ -378,7 +378,12 @@ public Task<bool> IsInRoleAsync(TUser user, string role)
         /// <returns></returns>
         public Task RemoveFromRoleAsync(TUser user, string role)
         {
-            throw new NotImplementedException();
+            int roles = 0;
+            if (user != null)
+            {
+                roles = userRolesTable.Delete(user.Id);
+            }
+            return Task.FromResult(roles);
         }
 
         /// <summary>

Src/AspNet.Identity.Oracle/UserTable.cs

@@ -132,7 +132,30 @@ public List<TUser> GetUserByName(string userName)
         public List<TUser> GetUserByEmail(string email)
         {
             var users = new List<TUser>();
-            // throw new NotImplementedException();
+            const string commandText = @"SELECT * FROM ANID2USERS WHERE EMAIL = :EMAIL";
+            var parameters = new List<OracleParameter>
+            {
+                new OracleParameter{ ParameterName = "EMAIL", Value = email, OracleDbType = OracleDbType.Varchar2}
+            };
+
+            var rows = _database.Query(commandText, parameters);
+            foreach (var row in rows)
+            {
+                var user = (TUser)Activator.CreateInstance(typeof(TUser));
+                user.Id = row["ID"];
+                user.UserName = row["USERNAME"];
+                user.PasswordHash = string.IsNullOrEmpty(row["PASSWORDHASH"]) ? null : row["PASSWORDHASH"];
+                user.SecurityStamp = string.IsNullOrEmpty(row["SECURITYSTAMP"]) ? null : row["SECURITYSTAMP"];
+                user.Email = string.IsNullOrEmpty(row["EMAIL"]) ? null : row["EMAIL"];
+                user.EmailConfirmed = (row["EMAILCONFIRMED"] == "1");
+                user.PhoneNumber = string.IsNullOrEmpty(row["PHONENUMBER"]) ? null : row["PHONENUMBER"];
+                user.PhoneNumberConfirmed = (row["PHONENUMBERCONFIRMED"] == "1");
+                user.LockoutEnabled = (row["LOCKOUTENABLED"] == "1");
+                user.LockoutEndDateUtc = string.IsNullOrEmpty(row["LOCKOUTENDDATEUTC"]) ? DateTime.Now : DateTime.Parse(row["LOCKOUTENDDATEUTC"]);
+                user.AccessFailedCount = string.IsNullOrEmpty(row["ACCESSFAILEDCOUNT"]) ? 0 : int.Parse(row["ACCESSFAILEDCOUNT"]);
+                user.TwoFactorEnabled = (row["TWOFACTORENABLED"] == "1");
+                users.Add(user);
+            }
             return users;
         }