Re-add EnsureExists signature to fix compat with old plugins

Fixes #862

TShockAPI/DB/BanManager.cs

@@ -46,7 +46,7 @@ namespace TShockAPI.DB
 			                                  	: new MysqlQueryCreator());
 			try
 			{
-				creator.EnsureExists(table);
+				creator.EnsureTableStructure(table);
 			}
 			catch (DllNotFoundException)
 			{

TShockAPI/DB/CharacterManager.cs

@@ -57,7 +57,7 @@ namespace TShockAPI.DB
 			                                  db.GetSqlType() == SqlType.Sqlite
 			                                  	? (IQueryBuilder) new SqliteQueryCreator()
 			                                  	: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 		}
 
 		public PlayerData GetPlayerData(TSPlayer player, int acctid)

TShockAPI/DB/GroupManager.cs

@@ -47,7 +47,7 @@ namespace TShockAPI.DB
 			                                  db.GetSqlType() == SqlType.Sqlite
 			                                  	? (IQueryBuilder) new SqliteQueryCreator()
 			                                  	: new MysqlQueryCreator());
-			if (creator.EnsureExists(table))
+			if (creator.EnsureTableStructure(table))
 			{
 				// Add default groups if they don't exist
 				AddDefaultGroup("guest", "",

TShockAPI/DB/ItemManager.cs

@@ -41,7 +41,7 @@ namespace TShockAPI.DB
 			                                  db.GetSqlType() == SqlType.Sqlite
 			                                  	? (IQueryBuilder) new SqliteQueryCreator()
 			                                  	: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 			UpdateItemBans();
 		}
 

TShockAPI/DB/ProjectileManager.cs

@@ -41,7 +41,7 @@ namespace TShockAPI.DB
 				db.GetSqlType() == SqlType.Sqlite
 					? (IQueryBuilder) new SqliteQueryCreator()
 					: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 			UpdateBans();
 		}
 

TShockAPI/DB/RegionManager.cs

@@ -55,7 +55,7 @@ namespace TShockAPI.DB
 											  db.GetSqlType() == SqlType.Sqlite
 											  	? (IQueryBuilder) new SqliteQueryCreator()
 											  	: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 		}
 
 		/// <summary>

TShockAPI/DB/RememberedPosManager.cs

@@ -42,7 +42,7 @@ namespace TShockAPI.DB
 			                                  db.GetSqlType() == SqlType.Sqlite
 			                                  	? (IQueryBuilder) new SqliteQueryCreator()
 			                                  	: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 		}
 
 		public Vector2 CheckLeavePos(string name)

TShockAPI/DB/SqlTable.cs

@@ -53,7 +53,7 @@ namespace TShockAPI.DB
 		}
 
 		// Returns true if the table was created; false if it was not.
-		public bool EnsureExists(SqlTable table)
+		public bool EnsureTableStructure(SqlTable table)
 		{
 			var columns = GetColumns(table);
 			if (columns.Count > 0)
@@ -72,6 +72,28 @@ namespace TShockAPI.DB
 			return false;
 		}
 
+		/// <summary>
+        /// Ensures a table exists and that its structure is correct
+		/// </summary>
+		/// <param name="table">The table name</param>
+        [Obsolete("This method will be replaced by EnsureTableExists.")]
+		public void EnsureExists(SqlTable table)
+		{
+			var columns = GetColumns(table);
+			if (columns.Count > 0)
+			{
+				if (!table.Columns.All(c => columns.Contains(c.Name)) || !columns.All(c => table.Columns.Any(c2 => c2.Name == c)))
+				{
+					var from = new SqlTable(table.Name, columns.Select(s => new SqlColumn(s, MySqlDbType.String)).ToList());
+					database.Query(creator.AlterTable(from, table));
+				}
+			}
+			else
+			{
+				database.Query(creator.CreateTable(table));
+			}
+		}
+
 		public List<string> GetColumns(SqlTable table)
 		{
 			var ret = new List<string>();

TShockAPI/DB/TileManager.cs

@@ -41,7 +41,7 @@ namespace TShockAPI.DB
 				db.GetSqlType() == SqlType.Sqlite
 					? (IQueryBuilder)new SqliteQueryCreator()
 					: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 			UpdateBans();
 		}
 

TShockAPI/DB/UserManager.cs

@@ -48,7 +48,7 @@ namespace TShockAPI.DB
 			                                  db.GetSqlType() == SqlType.Sqlite
 			                                  	? (IQueryBuilder) new SqliteQueryCreator()
 			                                  	: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 		}
 
 		/// <summary>

TShockAPI/DB/WarpsManager.cs

@@ -51,7 +51,7 @@ namespace TShockAPI.DB
 			                                  db.GetSqlType() == SqlType.Sqlite
 			                                  	? (IQueryBuilder) new SqliteQueryCreator()
 			                                  	: new MysqlQueryCreator());
-			creator.EnsureExists(table);
+			creator.EnsureTableStructure(table);
 		}
 
 		/// <summary>