Refactor: Separate engine code from GUI.

2025-12-16 19:14:25 +00:00 · 2017-05-10 21:04:42 +01:00
parent 96e277615c
commit 17b464012c
28 changed files with 602 additions and 397 deletions
--- a/osrepodbmgr.Core/SQLite.cs
+++ b/osrepodbmgr.Core/SQLite.cs
@@ -0,0 +1,143 @@
+//
+//  Author:
+//    Natalia Portillo claunia@claunia.com
+//
+//  Copyright (c) 2017, © Claunia.com
+//
+//  All rights reserved.
+//
+//  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+//
+//     * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in
+//       the documentation and/or other materials provided with the distribution.
+//     * Neither the name of the [ORGANIZATION] nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+//
+//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+//  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+//  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+//  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+//  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+//  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+//  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+using System;
+using System.Data;
+using System.Data.SQLite;
+
+namespace osrepodbmgr.Core
+{
+    public class SQLite : DBCore
+    {
+        SQLiteConnection dbCon;
+
+        #region implemented abstract members of DBCore
+
+        public override bool OpenDB(string database, string server, string user, string password)
+        {
+            try
+            {
+                string dataSrc = string.Format("URI=file:{0}", database);
+                dbCon = new SQLiteConnection(dataSrc);
+                dbCon.Open();
+                string sql;
+
+                sql = "SELECT * FROM osrepodbmgr";
+
+                SQLiteCommand dbcmd = dbCon.CreateCommand();
+                dbcmd.CommandText = sql;
+                SQLiteDataAdapter dAdapter = new SQLiteDataAdapter();
+                dAdapter.SelectCommand = dbcmd;
+                DataSet dSet = new DataSet();
+                dAdapter.Fill(dSet);
+                DataTable dTable = dSet.Tables[0];
+
+                if(dTable.Rows.Count != 1)
+                    return false;
+
+                if((long)dTable.Rows[0]["version"] != 1)
+                {
+                    dbCon = null;
+                    return false;
+                }
+
+                DBOps = new DBOps(dbCon, this);
+
+                return true;
+            }
+            catch(SQLiteException ex)
+            {
+                Console.WriteLine("Error opening DB.");
+                Console.WriteLine(ex.Message);
+                dbCon = null;
+                return false;
+            }
+        }
+
+        public override void CloseDB()
+        {
+            if(dbCon != null)
+                dbCon.Close();
+
+            DBOps = null;
+        }
+
+        public override bool CreateDB(string database, string server, string user, string password)
+        {
+            try
+            {
+                string dataSrc = string.Format("URI=file:{0}", database);
+                dbCon = new SQLiteConnection(dataSrc);
+                dbCon.Open();
+                SQLiteCommand dbCmd = dbCon.CreateCommand();
+                string sql;
+
+                Console.WriteLine("Creating osrepodbmgr table");
+
+                sql = "CREATE TABLE osrepodbmgr ( version INTEGER, name TEXT )";
+                dbCmd.CommandText = sql;
+                dbCmd.ExecuteNonQuery();
+
+                sql = "INSERT INTO osrepodbmgr ( version, name ) VALUES ( '1', 'Canary Islands Computer Museum' )";
+                dbCmd.CommandText = sql;
+                dbCmd.ExecuteNonQuery();
+
+                Console.WriteLine("Creating oses table");
+                dbCmd.CommandText = Schema.OSesTableSql;
+                dbCmd.ExecuteNonQuery();
+
+                Console.WriteLine("Creating files table");
+                dbCmd.CommandText = Schema.FilesTableSql;
+                dbCmd.ExecuteNonQuery();
+
+                dbCmd.Dispose();
+                dbCon = null;
+                return true;
+            }
+            catch(SQLiteException ex)
+            {
+                Console.WriteLine("Error opening DB.");
+                Console.WriteLine(ex.Message);
+                dbCon = null;
+                return false;
+            }
+        }
+
+        public override IDbDataAdapter GetNewDataAdapter()
+        {
+            return new SQLiteDataAdapter();
+        }
+
+        public override long LastInsertRowId
+        {
+            get { return dbCon.LastInsertRowId; }
+        }
+
+        #endregion
+    }
+}
+