public override void UpdateTable(string table, ColumnDefinition[] columns)
{
table = table.ToLower ();
if (!TableExists (table))
{
throw new DataManagerException ("Trying to update a table with name of one that does not exist.");
}
List<ColumnDefinition> oldColumns = ExtractColumnsFromTable (table);
Dictionary<string, ColumnDefinition> removedColumns = new Dictionary<string, ColumnDefinition> ();
Dictionary<string, ColumnDefinition> modifiedColumns = new Dictionary<string, ColumnDefinition> ();
Dictionary<string, ColumnDefinition> addedColumns = columns.Where (column => !oldColumns.Contains (column)).ToDictionary (column => column.Name);
foreach (ColumnDefinition column in oldColumns.Where (column => !columns.Contains (column)))
{
if (addedColumns.ContainsKey (column.Name))
{
modifiedColumns.Add (column.Name, addedColumns[column.Name]);
addedColumns.Remove (column.Name);
}
else
removedColumns.Add (column.Name, column);
}
try
{
foreach (ColumnDefinition column in addedColumns.Values)
{
string addedColumnsQuery = "add `" + column.Name + "` " + GetColumnTypeStringSymbol (column.Type) + " ";
string query = string.Format ("alter table " + table + " " + addedColumnsQuery);
ExecuteNonQuery (query, new Dictionary<string, object> ());
}
foreach (ColumnDefinition column in modifiedColumns.Values)
{
string modifiedColumnsQuery = "modify column `" + column.Name + "` " + GetColumnTypeStringSymbol (column.Type) + " ";
string query = string.Format ("alter table " + table + " " + modifiedColumnsQuery);
ExecuteNonQuery (query, new Dictionary<string, object> ());
}
foreach (ColumnDefinition column in removedColumns.Values)
{
string droppedColumnsQuery = "drop `" + column.Name + "` ";
string query = string.Format ("alter table " + table + " " + droppedColumnsQuery);
ExecuteNonQuery (query, new Dictionary<string, object> ());
}
}
catch(Exception e)
{
m_log.Debug("[MySQLDataLoader] UpdateTable", e);
}
}
public override void UpdateTable(string table, ColumnDefinition[] columns)
{
if (!TableExists(table))
{
throw new DataManagerException("Trying to update a table with name of one that does not exist.");
}
List<ColumnDefinition> oldColumns = ExtractColumnsFromTable(table);
Dictionary<string, ColumnDefinition> sameColumns = new Dictionary<string, ColumnDefinition>();
foreach (ColumnDefinition column in oldColumns)
{
if (columns.Contains(column))
{
sameColumns.Add(column.Name, column);
}
}
string columnDefinition = string.Empty;
/*var primaryColumns = (from cd in columns where cd.IsPrimary == true select cd);
bool multiplePrimary = primaryColumns.Count() > 1;*/
string renamedTempTableColumnDefinition = string.Empty;
string renamedTempTableColumn = string.Empty;
foreach (ColumnDefinition column in oldColumns)
{
if (renamedTempTableColumnDefinition != string.Empty)
{
renamedTempTableColumnDefinition += ", ";
renamedTempTableColumn += ", ";
}
renamedTempTableColumn += column.Name;
renamedTempTableColumnDefinition += column.Name + " " + GetColumnTypeStringSymbol(column.Type);
}
string query = "CREATE TABLE " + table + "__temp(" + renamedTempTableColumnDefinition + ");";
var cmd = new SqliteCommand();
cmd.CommandText = query;
ExecuteNonQuery(cmd);
CloseReaderCommand(cmd);
query = "INSERT INTO " + table + "__temp SELECT " + renamedTempTableColumn + " from " + table + ";";
cmd = new SqliteCommand();
cmd.CommandText = query;
ExecuteNonQuery(cmd);
CloseReaderCommand(cmd);
query = "drop table " + table;
cmd = new SqliteCommand();
cmd.CommandText = query;
ExecuteNonQuery(cmd);
CloseReaderCommand(cmd);
string newTableColumnDefinition = string.Empty;
List<ColumnDefinition> primaryColumns = new List<ColumnDefinition>();
foreach (ColumnDefinition column in columns)
{
if (column.IsPrimary) primaryColumns.Add(column);
}
bool multiplePrimary = primaryColumns.Count > 1;
foreach (ColumnDefinition column in columns)
{
if (newTableColumnDefinition != string.Empty)
{
newTableColumnDefinition += ", ";
}
newTableColumnDefinition += column.Name + " " + GetColumnTypeStringSymbol(column.Type) + ((column.IsPrimary && !multiplePrimary) ? " PRIMARY KEY" : string.Empty);
}
string multiplePrimaryString = string.Empty;
if (multiplePrimary)
{
string listOfPrimaryNamesString = string.Empty;
foreach (ColumnDefinition column in primaryColumns)
{
if (listOfPrimaryNamesString != string.Empty)
{
listOfPrimaryNamesString += ", ";
}
listOfPrimaryNamesString += column.Name;
}
multiplePrimaryString = string.Format(", PRIMARY KEY ({0}) ", listOfPrimaryNamesString);
}
query = string.Format("create table " + table + " ( {0} {1}) ", newTableColumnDefinition, multiplePrimaryString);
cmd = new SqliteCommand();
cmd.CommandText = query;
ExecuteNonQuery(cmd);
CloseReaderCommand(cmd);
string InsertFromTempTableColumnDefinition = string.Empty;
foreach (ColumnDefinition column in sameColumns.Values)
{
if (InsertFromTempTableColumnDefinition != string.Empty)
{
InsertFromTempTableColumnDefinition += ", ";
}
InsertFromTempTableColumnDefinition += column.Name;
}
query = "INSERT INTO " + table + " (" + InsertFromTempTableColumnDefinition + ") SELECT " + InsertFromTempTableColumnDefinition + " from " + table + "__temp;";
cmd = new SqliteCommand();
cmd.CommandText = query;
ExecuteNonQuery(cmd);
CloseReaderCommand(cmd);
query = "drop table " + table + "__temp";
cmd = new SqliteCommand();
cmd.CommandText = query;
ExecuteNonQuery(cmd);
CloseReaderCommand(cmd);
}
public override void UpdateTable(string table, ColumnDefinition[] columns)
{
table = table.ToLower();
if (!TableExists(table))
{
throw new DataManagerException("Trying to update a table with name of one that does not exist.");
}
List<ColumnDefinition> oldColumns = ExtractColumnsFromTable(table);
Dictionary<string, ColumnDefinition> addedColumns = new Dictionary<string, ColumnDefinition>();
Dictionary<string, ColumnDefinition> removedColumns = new Dictionary<string, ColumnDefinition>();
Dictionary<string, ColumnDefinition> modifiedColumns = new Dictionary<string, ColumnDefinition>();
foreach (ColumnDefinition column in columns)
{
if (!oldColumns.Contains(column))
{
addedColumns.Add(column.Name, column);
}
}
foreach (ColumnDefinition column in oldColumns)
{
if (!columns.Contains(column))
{
if (addedColumns.ContainsKey(column.Name))
{
modifiedColumns.Add(column.Name, addedColumns[column.Name]);
addedColumns.Remove(column.Name);
}
else
removedColumns.Add(column.Name, column);
}
}
string columnDefinition = string.Empty;
/*var primaryColumns = (from cd in columns where cd.IsPrimary == true select cd);
bool multiplePrimary = primaryColumns.Count() > 1;*/
string addedColumnsQuery = "";
string modifiedColumnsQuery = "";
string droppedColumnsQuery = "";
MySqlConnection dbcon = GetLockedConnection();
foreach (ColumnDefinition column in addedColumns.Values)
{
addedColumnsQuery = "add " + column.Name + " " + GetColumnTypeStringSymbol(column.Type) + " ";
string query = string.Format("alter table " + table + " " + addedColumnsQuery);
MySqlCommand dbcommand = dbcon.CreateCommand();
dbcommand.CommandText = query;
try
{
dbcommand.ExecuteNonQuery();
}
catch
{
}
}
foreach (ColumnDefinition column in modifiedColumns.Values)
{
modifiedColumnsQuery = "modify column " + column.Name + " " + GetColumnTypeStringSymbol(column.Type) + " ";
string query = string.Format("alter table " + table + " " + modifiedColumnsQuery);
MySqlCommand dbcommand = dbcon.CreateCommand();
dbcommand.CommandText = query;
try
{
dbcommand.ExecuteNonQuery();
}
catch
{
}
}
foreach (ColumnDefinition column in removedColumns.Values)
{
droppedColumnsQuery = "drop " + column.Name + " ";
string query = string.Format("alter table " + table + " " + droppedColumnsQuery);
MySqlCommand dbcommand = dbcon.CreateCommand();
dbcommand.CommandText = query;
try
{
dbcommand.ExecuteNonQuery();
}
catch
{
}
}
CloseDatabase(dbcon);
}
public override void UpdateTable(string table, ColumnDefinition[] columns, IndexDefinition[] indices, Dictionary<string, string> renameColumns)
{
table = table.ToLower();
if (!TableExists(table))
{
throw new DataManagerException("Trying to update a table with name of one that does not exist.");
}
List<ColumnDefinition> oldColumns = ExtractColumnsFromTable(table);
Dictionary<string, ColumnDefinition> removedColumns = new Dictionary<string, ColumnDefinition>();
Dictionary<string, ColumnDefinition> modifiedColumns = new Dictionary<string, ColumnDefinition>();
#if (!ISWIN)
Dictionary<string, ColumnDefinition> addedColumns = new Dictionary<string, ColumnDefinition>();
foreach (ColumnDefinition column in columns)
{
if (!oldColumns.Contains(column)) addedColumns.Add(column.Name.ToLower(), column);
}
foreach (ColumnDefinition column in oldColumns)
{
if (!columns.Contains(column))
{
if (addedColumns.ContainsKey(column.Name.ToLower()))
{
if (column.Name.ToLower() != addedColumns[column.Name.ToLower()].Name.ToLower() || column.Type != addedColumns[column.Name.ToLower()].Type)
{
modifiedColumns.Add(column.Name.ToLower(), addedColumns[column.Name.ToLower()]);
}
addedColumns.Remove(column.Name.ToLower());
}
else
{
removedColumns.Add(column.Name.ToLower(), column);
}
}
}
#else
Dictionary<string, ColumnDefinition> addedColumns = columns.Where(column => !oldColumns.Contains(column)).ToDictionary(column => column.Name.ToLower());
foreach (ColumnDefinition column in oldColumns.Where(column => !columns.Contains(column)))
{
if (addedColumns.ContainsKey(column.Name.ToLower()))
{
if (column.Name.ToLower() != addedColumns[column.Name.ToLower()].Name.ToLower() || column.Type != addedColumns[column.Name.ToLower()].Type)
{
modifiedColumns.Add(column.Name.ToLower(), addedColumns[column.Name.ToLower()]);
}
addedColumns.Remove(column.Name.ToLower());
}
else{
removedColumns.Add(column.Name.ToLower(), column);
}
}
#endif
try
{
#if (!ISWIN)
foreach (ColumnDefinition column in addedColumns.Values)
{
string addedColumnsQuery = "add `" + column.Name + "` " + GetColumnTypeStringSymbol(column.Type) + " ";
string query = string.Format("alter table " + table + " " + addedColumnsQuery);
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (ColumnDefinition column in modifiedColumns.Values)
{
string modifiedColumnsQuery = "modify column `" + column.Name + "` " + GetColumnTypeStringSymbol(column.Type) + " ";
string query = string.Format("alter table " + table + " " + modifiedColumnsQuery);
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (ColumnDefinition column in removedColumns.Values)
{
string droppedColumnsQuery = "drop `" + column.Name + "` ";
string query = string.Format("alter table " + table + " " + droppedColumnsQuery);
ExecuteNonQuery(query, new Dictionary<string, object>());
}
#else
foreach (string query in addedColumns.Values.Select(column => "add `" + column.Name + "` " + GetColumnTypeStringSymbol(column.Type) +
" ").Select(addedColumnsQuery => string.Format("alter table " + table + " " + addedColumnsQuery)))
{
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (string query in modifiedColumns.Values.Select(column => "modify column `" + column.Name + "` " +
GetColumnTypeStringSymbol(column.Type) + " ").Select(modifiedColumnsQuery => string.Format("alter table " + table + " " + modifiedColumnsQuery)))
{
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (string query in removedColumns.Values.Select(column => "drop `" + column.Name + "` ").Select(droppedColumnsQuery => string.Format("alter table " + table + " " + droppedColumnsQuery)))
{
ExecuteNonQuery(query, new Dictionary<string, object>());
}
#endif
}
catch (Exception e)
{
MainConsole.Instance.Error("[MySQLDataLoader] UpdateTable", e);
}
Dictionary<string, IndexDefinition> oldIndicesDict = ExtractIndicesFromTable(table);
List<string> removeIndices = new List<string>();
List<string> oldIndexNames = new List<string>(oldIndicesDict.Count);
List<IndexDefinition> oldIndices = new List<IndexDefinition>(oldIndicesDict.Count);
List<IndexDefinition> newIndices = new List<IndexDefinition>();
foreach (KeyValuePair<string, IndexDefinition> oldIndex in oldIndicesDict)
{
oldIndexNames.Add(oldIndex.Key);
oldIndices.Add(oldIndex.Value);
}
int i=0;
foreach(IndexDefinition oldIndex in oldIndices){
bool found = false;
foreach (IndexDefinition newIndex in indices)
{
if (oldIndex.Equals(newIndex))
{
found = true;
break;
}
}
if (!found)
{
removeIndices.Add(oldIndexNames[i]);
}
++i;
}
foreach (IndexDefinition newIndex in indices)
{
bool found = false;
foreach (IndexDefinition oldIndex in oldIndices)
{
if (oldIndex.Equals(newIndex))
{
found = true;
break;
}
}
if (!found)
{
newIndices.Add(newIndex);
}
}
foreach (string oldIndex in removeIndices)
{
ExecuteNonQuery(string.Format("ALTER TABLE `{0}` DROP INDEX `{1}`", table, oldIndex), new Dictionary<string, object>());
}
foreach (IndexDefinition newIndex in newIndices)
{
ExecuteNonQuery(string.Format("ALTER TABLE `{0}` ADD {1} (`{2}`)", table, newIndex.Type == IndexType.Primary ? "PRIMARY KEY" : (newIndex.Type == IndexType.Unique ? "UNIQUE" : "INDEX"), string.Join("`, `", newIndex.Fields)), new Dictionary<string,object>());
}
}
public override void UpdateTable(string table, ColumnDefinition[] columns,
Dictionary<string, string> renameColumns)
{
table = table.ToLower();
if (!TableExists(table))
{
throw new DataManagerException("Trying to update a table with name of one that does not exist.");
}
List<ColumnDefinition> oldColumns = ExtractColumnsFromTable(table);
Dictionary<string, ColumnDefinition> removedColumns = new Dictionary<string, ColumnDefinition>();
Dictionary<string, ColumnDefinition> modifiedColumns = new Dictionary<string, ColumnDefinition>();
#if (!ISWIN)
Dictionary<string, ColumnDefinition> addedColumns = new Dictionary<string, ColumnDefinition>();
foreach (ColumnDefinition column in columns)
{
if (!oldColumns.Contains(column)) addedColumns.Add(column.Name.ToLower(), column);
}
foreach (ColumnDefinition column in oldColumns)
{
if (!columns.Contains(column))
{
if (addedColumns.ContainsKey(column.Name.ToLower()))
{
if (column.Name.ToLower() != addedColumns[column.Name.ToLower()].Name.ToLower() || column.Type != addedColumns[column.Name.ToLower()].Type)
modifiedColumns.Add(column.Name.ToLower(), addedColumns[column.Name.ToLower()]);
addedColumns.Remove(column.Name.ToLower());
}
else
removedColumns.Add(column.Name.ToLower(), column);
}
}
#else
Dictionary<string, ColumnDefinition> addedColumns =
columns.Where(column => !oldColumns.Contains(column)).ToDictionary(column => column.Name.ToLower());
foreach (ColumnDefinition column in oldColumns.Where(column => !columns.Contains(column)))
{
if (addedColumns.ContainsKey(column.Name.ToLower()))
{
if (column.Name.ToLower() != addedColumns[column.Name.ToLower()].Name.ToLower() ||
column.Type != addedColumns[column.Name.ToLower()].Type)
modifiedColumns.Add(column.Name.ToLower(), addedColumns[column.Name.ToLower()]);
addedColumns.Remove(column.Name.ToLower());
}
else
removedColumns.Add(column.Name.ToLower(), column);
}
#endif
try
{
#if (!ISWIN)
foreach (ColumnDefinition column in addedColumns.Values)
{
string addedColumnsQuery = "add `" + column.Name + "` " + GetColumnTypeStringSymbol(column.Type) + " ";
string query = string.Format("alter table " + table + " " + addedColumnsQuery);
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (ColumnDefinition column in modifiedColumns.Values)
{
string modifiedColumnsQuery = "modify column `" + column.Name + "` " + GetColumnTypeStringSymbol(column.Type) + " ";
string query = string.Format("alter table " + table + " " + modifiedColumnsQuery);
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (ColumnDefinition column in removedColumns.Values)
{
string droppedColumnsQuery = "drop `" + column.Name + "` ";
string query = string.Format("alter table " + table + " " + droppedColumnsQuery);
ExecuteNonQuery(query, new Dictionary<string, object>());
}
#else
foreach (string query in addedColumns.Values.Select(column => "add `" + column.Name + "` " + GetColumnTypeStringSymbol(column.Type) +
" ").Select(addedColumnsQuery => string.Format("alter table " + table + " " + addedColumnsQuery)))
{
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (string query in modifiedColumns.Values.Select(column => "modify column `" + column.Name + "` " +
GetColumnTypeStringSymbol(column.Type) + " ").Select(modifiedColumnsQuery => string.Format("alter table " + table + " " + modifiedColumnsQuery)))
{
ExecuteNonQuery(query, new Dictionary<string, object>());
}
foreach (string query in removedColumns.Values.Select(column => "drop `" + column.Name + "` ").Select(droppedColumnsQuery => string.Format("alter table " + table + " " + droppedColumnsQuery)))
{
ExecuteNonQuery(query, new Dictionary<string, object>());
}
#endif
}
catch (Exception e)
{
MainConsole.Instance.Error("[MySQLDataLoader] UpdateTable", e);
}
}
