Adding Clear and Transactional Method

ChaosBot/Database/Controller.cs

@@ -91,6 +91,56 @@ namespace ChaosBot.Database
             }
         }
 
+        public static int TransactionQuery(List<SqliteCommand> cmds)
+        {
+            SqliteCommand command = _conn.CreateCommand();
+            SqliteTransaction transaction;
+
+            // Start a local transaction.
+            transaction = _conn.BeginTransaction();
+
+            // Must assign both transaction object and connection
+            // to Command object for a pending local transaction
+            command.Connection = _conn;
+            command.Transaction = transaction;
+
+            try
+            {
+                foreach (var cmd in cmds)
+                {
+                    command.CommandText = cmd.ToString();
+                    command.ExecuteNonQuery();
+                }
+ 
+                // Attempt to commit the transaction.
+                transaction.Commit();
+                _logger.Info($"{cmds.Count} record(s) are written to database.");
+            }
+            catch (Exception ex)
+            {
+                _logger.Warn("Commit Exception Type: {0}", ex.GetType());
+                _logger.Warn("  Message: {0}", ex.Message);
+
+                // Attempt to roll back the transaction.
+                try
+                {
+                    transaction.Rollback();
+                }
+                catch (Exception ex2)
+                {
+                    // This catch block will handle any errors that may have occurred
+                    // on the server that would cause the rollback to fail, such as
+                    // a closed connection.
+                    _logger.Warn("Rollback Exception Type: {0}", ex2.GetType());
+                    _logger.Warn("  Message: {0}", ex2.Message);
+                }
+
+                return 0;
+            }
+
+            return cmds.Count;
+        }
+        
         public static DataTable SelectQuery(string table, string selectColumns = "*", Dictionary<string, object> filterColumns = null, string orderByKey = null)
         {
             DataTable dt = new DataTable();

ChaosBot/Database/Repository/RaffleRepository.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Data;
 using System.Linq;
 using ChaosBot.Database.Entity;
+using Microsoft.Data.Sqlite;
 
 namespace ChaosBot.Database.Repository
 {
@@ -93,6 +94,15 @@ namespace ChaosBot.Database.Repository
             return new Raffle(idFetch, userIdFetch);
         }
 
+        public static int clearRaffle()
+        {
+            List<SqliteCommand> cmds = new List<SqliteCommand>();
+            
+            cmds.Add(new SqliteCommand("delete from RaffleTable;"));
+            cmds.Add(new SqliteCommand("UPDATE SQLITE_SEQUENCE SET seq = 0 WHERE name = 'RaffleTable';"));
+
+            return Controller.TransactionQuery(cmds);
+        }
         // public static void delete()
         // {
         //     

ChaosBot/Discord/Modules/RaffleSystem.cs

@@ -167,11 +167,9 @@ namespace ChaosBot.Discord.Modules
 
         private void ClearRaffle(StringBuilder sb, bool noOutput = false)
         {
-            _currentPot.Clear();
+            int Removed = RaffleRepository.clearRaffle();
                        
-            if (noOutput) return;
-                       
-            sb.AppendLine($"{Context.User.Mention} has cleared all rafflepoints");
+            sb.AppendLine($"{Context.User.Mention} has cleared all {Removed} rafflepoints");
         }
 
         private void StatusRaffle(StringBuilder sb, string user)