Repair damanged SQLite databases by re-indexing

ChanSort.Loader.Panasonic/Serializer.cs

@@ -24,7 +24,7 @@ namespace ChanSort.Loader.Panasonic
     private CypherMode cypherMode;
     private byte[] fileHeader = new byte[0];
     private int dbSizeOffset;
-    private bool littleEndianByteOrder = false;
+    private bool littleEndianByteOrder;
     private string charEncoding;
 
     enum CypherMode
@@ -331,9 +331,10 @@ namespace ChanSort.Loader.Panasonic
       using (var conn = new SQLiteConnection(channelConnString))
       {
         conn.Open();
-        InitCharacterEncoding(conn);
         using (var cmd = conn.CreateCommand())
         {
+          RepairCorruptedDatabaseImage(cmd);
+          InitCharacterEncoding(cmd);
           this.ReadChannels(cmd);
         }
       }
@@ -481,13 +482,18 @@ namespace ChanSort.Loader.Panasonic
     #endregion
 
     #region InitCharacterEncoding()
-    private void InitCharacterEncoding(SQLiteConnection conn)
+    private void InitCharacterEncoding(SQLiteCommand cmd)
     {
-      using (var cmd = conn.CreateCommand())
-      {
-        cmd.CommandText = "PRAGMA encoding";
-        this.charEncoding = cmd.ExecuteScalar() as string;
-      }
+      cmd.CommandText = "PRAGMA encoding";
+      this.charEncoding = cmd.ExecuteScalar() as string;
+    }
+    #endregion
+
+    #region RepairCorruptedDatabaseImage()
+    private void RepairCorruptedDatabaseImage(SQLiteCommand cmd)
+    {
+      cmd.CommandText = "REINDEX";
+      cmd.ExecuteNonQuery();
     }
     #endregion
 
@@ -572,6 +578,7 @@ order by s.ntype,major_channel
             this.WriteChannels(cmd, this.freesatChannels);
             trans.Commit();
           }
+          this.RepairCorruptedDatabaseImage(cmd);
         }
       }
 

ChanSort.Loader.Toshiba/DbSerializer.cs

@@ -55,6 +55,7 @@ namespace ChanSort.Loader.Toshiba
         conn.Open();
         using (var cmd = conn.CreateCommand())
         {
+          this.RepairCorruptedDatabaseImage(cmd);
           this.ReadSatellites(cmd);
           this.ReadTransponders(cmd);
         }
@@ -131,6 +132,14 @@ namespace ChanSort.Loader.Toshiba
     }
     #endregion
 
+    #region RepairCorruptedDatabaseImage()
+    private void RepairCorruptedDatabaseImage(SQLiteCommand cmd)
+    {
+      cmd.CommandText = "REINDEX";
+      cmd.ExecuteNonQuery();
+    }
+    #endregion
+
     #region ReadSatellites()
     private void ReadSatellites(SQLiteCommand cmd)
     {
@@ -302,6 +311,7 @@ namespace ChanSort.Loader.Toshiba
             this.WriteChannels(cmd, "EuroSATChanList", this.satRadioChannels);
             trans.Commit();
           }
+          this.RepairCorruptedDatabaseImage(cmd);
         }        
       }
 

ChanSort/MainForm.cs

@@ -25,7 +25,7 @@ namespace ChanSort.Ui
 {
   public partial class MainForm : XtraForm
   {
-    public const string AppVersion = "v2013-11-23";
+    public const string AppVersion = "v2013-11-24";
 
     private const int MaxMruEntries = 10;
 

readme.txt

@@ -1,10 +1,7 @@
-Version v2013-11-23 =======================================================
+Version v2013-11-24 =======================================================
 
 Changes:
-- Channel lists can now be printed
-- Fix: Error when saving Toshiba and Panasonic channel list which contained
-  red proxy entries for missing channels after applying a reference list
-- Fix: Modified Panasonic channel names were not written to the file
+- Load and repair corrupted Panasonic and Toshiba SQLite channel lists
 
 The complete change log can be found at the end of this document
 
@@ -113,6 +110,9 @@ OTHER DEALINGS IN THE SOFTWARE.
 
 Change log ================================================================
 
+2013-11-24
+- Load and repair corrupted Panasonic and Toshiba SQLite channel lists
+
 2013-11-23
 - Channel lists can now be printed
 - Fix: Error when saving Toshiba and Panasonic channel list which contained