public string SqlText(BuilkInsert bulkInsertCommand) { System.Text.StringBuilder Res = null; int Line = 0; foreach (Insert Cmd in bulkInsertCommand.InsertCommands) { if (Line == 0) { Res = new System.Text.StringBuilder(); Res.Append(this.SqlText(Cmd)); } else { Res.AppendLine(", "); Res.Append(this.SqlText(Cmd.ColumnValues, ColumnValueFormatStyles.InsertStyleValuesOnly, false, Line)); } ++Line; } if (bulkInsertCommand.WhereClause != null) { Res.Append(" WHERE " + this.SqlText(bulkInsertCommand.WhereClause)); } if (Res == null) { return(""); } else { return(Res.ToString()); } }
public string SqlText(BuilkInsert insertCommand) { System.Text.StringBuilder Res = null; foreach (Insert Cmd in insertCommand.InsertCommands) { if (Res == null) { Res = new System.Text.StringBuilder(); Res.AppendLine(this.SqlText(Cmd)); } else { Res.Append(", "); Res.AppendLine(this.SqlText(Cmd, true)); } } if (Res == null) { return(""); } else { return(Res.ToString()); } }
public System.Data.IDbCommand SetupDbCommand(BuilkInsert bulkInsertCommand, IConnection connection) { var DbCommand = connection.DbConnection.CreateCommand(); StringBuilder CmdText = new StringBuilder(); this.PopulateParameters(connection, DbCommand.Parameters, bulkInsertCommand.InsertCommands[0].ColumnValues, 0); if (bulkInsertCommand.InsertCommands.Count > 1) { var Line = 0; foreach (var Ic in bulkInsertCommand.InsertCommands) { if (Line == 0) { // Skip first INSERT, which is already included above CmdText.Append("INSERT INTO "); CmdText.Append(this.SqlText(bulkInsertCommand.Tables)); CmdText.Append(" "); CmdText.Append(this.SqlText(bulkInsertCommand.InsertCommands[0].ColumnValues, ColumnValueFormatStyles.InsertStyle, true, 0)); } else { CmdText.AppendLine(", "); CmdText.Append(this.SqlText(Ic.ColumnValues, ColumnValueFormatStyles.InsertStyleValuesOnly, true, Line)); this.PopulateParameters(connection, DbCommand.Parameters, Ic.ColumnValues, Line); } ++Line; } } if (bulkInsertCommand.WhereClause != null) { CmdText.Append(" WHERE " + this.SqlText(bulkInsertCommand.WhereClause)); } DbCommand.CommandText = CmdText.ToString(); return(DbCommand); }
public void Restore(string backupName) { string Carpeta = backupName + System.IO.Path.DirectorySeparatorChar; Lfx.Environment.Folders.EnsurePathExists(this.BackupPath); if (Carpeta != null && Carpeta.Length > 0 && System.IO.Directory.Exists(this.BackupPath + Carpeta)) { bool UsandoArchivoComprimido = false; Lfx.Types.OperationProgress Progreso = new Lfx.Types.OperationProgress("Restaurando copia de seguridad", "Este proceso va a demorar varios minutos. Por favor no lo interrumpa"); Progreso.Modal = true; /* Progreso.ChangeStatus("Descomprimiendo"); * // Descomprimir backup si está comprimido * if (System.IO.File.Exists(BackupPath + Carpeta + "backup.7z")) { * Lfx.FileFormats.Compression.Archive ArchivoComprimido = new Lfx.FileFormats.Compression.Archive(BackupPath + Carpeta + "backup.7z"); * ArchivoComprimido.ExtractAll(BackupPath + Carpeta); * UsandoArchivoComprimido = true; * } */ Progreso.ChangeStatus("Eliminando datos actuales"); using (Lfx.Data.IConnection ConnRestaurar = Lfx.Workspace.Master.GetNewConnection("Restauración de copia de seguridad") as Lfx.Data.IConnection) { Progreso.ChangeStatus("Acomodando estructuras"); Lfx.Workspace.Master.Structure.TagList.Clear(); Lfx.Workspace.Master.Structure.LoadFromFile(this.BackupPath + Carpeta + "dbstruct.xml"); //Lfx.Workspace.Master.CheckAndUpdateDatabaseVersion(true, true); using (BackupReader Lector = new BackupReader(this.BackupPath + Carpeta + "dbdata.lbd")) using (IDbTransaction Trans = ConnRestaurar.BeginTransaction()) { ConnRestaurar.EnableConstraints(false); Progreso.ChangeStatus("Incorporando tablas de datos"); Progreso.Max = (int)(Lector.Length / 1024); string TablaActual = null; string[] ListaCampos = null; object[] ValoresCampos = null; int CampoActual = 0; bool EndTable = false; qGen.BuilkInsert Insertador = new qGen.BuilkInsert(); do { string Comando = Lector.ReadString(4); switch (Comando) { case ":TBL": TablaActual = Lector.ReadPrefixedString4(); string NombreTabla; if (Lfx.Workspace.Master.Structure.Tables.ContainsKey(TablaActual) && Lfx.Workspace.Master.Structure.Tables[TablaActual].Label != null) { NombreTabla = Lfx.Workspace.Master.Structure.Tables[TablaActual].Label; } else { NombreTabla = TablaActual.ToTitleCase(); } EndTable = false; Progreso.ChangeStatus("Cargando " + NombreTabla); qGen.Delete DelCmd = new qGen.Delete(TablaActual); DelCmd.EnableDeleleteWithoutWhere = true; ConnRestaurar.ExecuteNonQuery(DelCmd); break; case ":FDL": ListaCampos = Lector.ReadPrefixedString4().Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries); ValoresCampos = new object[ListaCampos.Length]; CampoActual = 0; break; case ":FLD": ValoresCampos[CampoActual++] = Lector.ReadField(); break; case ".ROW": qGen.Insert Insertar = new qGen.Insert(TablaActual); for (int i = 0; i < ListaCampos.Length; i++) { Insertar.ColumnValues.AddWithValue(ListaCampos[i], ValoresCampos[i]); } Insertador.Add(Insertar); ValoresCampos = new object[ListaCampos.Length]; CampoActual = 0; break; case ":REM": Lector.ReadPrefixedString4(); break; case ".TBL": EndTable = true; break; } if (EndTable || Insertador.Count >= 1000) { if (Insertador.Count > 0) { ConnRestaurar.ExecuteNonQuery(Insertador); } Insertador.Clear(); Progreso.Value = (int)(Lector.Position / 1024); } } while (Lector.Position < Lector.Length); Lector.Close(); if (Lfx.Workspace.Master.MasterConnection.SqlMode == qGen.SqlModes.PostgreSql) { // PostgreSql: Tengo que actualizar las secuencias Progreso.ChangeStatus("Actualizando secuencias"); string PatronSecuencia = @"nextval\(\'(.+)\'(.*)\)"; foreach (string Tabla in Lfx.Data.DatabaseCache.DefaultCache.GetTableNames()) { string OID = ConnRestaurar.FieldString("SELECT c.oid FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid=c.relnamespace WHERE pg_catalog.pg_table_is_visible(c.oid) AND c.relname ~ '^" + Tabla + "$'"); System.Data.DataTable Campos = ConnRestaurar.Select("SELECT a.attname,pg_catalog.format_type(a.atttypid, a.atttypmod),(SELECT substring(d.adsrc for 128) FROM pg_catalog.pg_attrdef d WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef), a.attnotnull, a.attnum FROM pg_catalog.pg_attribute a WHERE a.attrelid = '" + OID + "' AND a.attnum > 0 AND NOT a.attisdropped ORDER BY a.attnum"); foreach (System.Data.DataRow Campo in Campos.Rows) { if (Campo[2] != DBNull.Value && Campo[2] != null) { string DefaultCampo = System.Convert.ToString(Campo[2]); if (Regex.IsMatch(DefaultCampo, PatronSecuencia)) { string NombreCampo = System.Convert.ToString(Campo[0]); foreach (System.Text.RegularExpressions.Match Ocurrencia in Regex.Matches(DefaultCampo, PatronSecuencia)) { string Secuencia = Ocurrencia.Groups[1].ToString(); int MaxId = ConnRestaurar.FieldInt("SELECT MAX(" + NombreCampo + ") FROM " + Tabla) + 1; ConnRestaurar.ExecuteNonQuery("ALTER SEQUENCE " + Secuencia + " RESTART WITH " + MaxId.ToString()); } } } } } } if (System.IO.File.Exists(this.BackupPath + Carpeta + "blobs.lst")) { // Incorporar Blobs Progreso.ChangeStatus("Incorporando imágenes"); System.IO.StreamReader LectorBlobs = new System.IO.StreamReader(this.BackupPath + Carpeta + "blobs.lst", System.Text.Encoding.Default); string InfoImagen = null; do { InfoImagen = LectorBlobs.ReadLine(); if (InfoImagen != null && InfoImagen.Length > 0) { string Tabla = Lfx.Types.Strings.GetNextToken(ref InfoImagen, ","); string Campo = Lfx.Types.Strings.GetNextToken(ref InfoImagen, ","); string CampoId = Lfx.Types.Strings.GetNextToken(ref InfoImagen, ","); string NombreArchivoImagen = Lfx.Types.Strings.GetNextToken(ref InfoImagen, ","); // Guardar blob nuevo qGen.Update ActualizarBlob = new qGen.Update(Tabla); ActualizarBlob.WhereClause = new qGen.Where(Campo, CampoId); System.IO.FileStream ArchivoImagen = new System.IO.FileStream(this.BackupPath + Carpeta + NombreArchivoImagen, System.IO.FileMode.Open, System.IO.FileAccess.Read); byte[] Contenido = new byte[System.Convert.ToInt32(ArchivoImagen.Length) - 1 + 1]; ArchivoImagen.Read(Contenido, 0, System.Convert.ToInt32(ArchivoImagen.Length)); ArchivoImagen.Close(); ActualizarBlob.ColumnValues.AddWithValue(Campo, Contenido); ConnRestaurar.ExecuteNonQuery(ActualizarBlob); } }while (InfoImagen != null); LectorBlobs.Close(); } if (UsandoArchivoComprimido) { Progreso.ChangeStatus("Eliminando archivos temporales"); // Borrar los archivos que descomprim temporalmente System.IO.DirectoryInfo Dir = new System.IO.DirectoryInfo(this.BackupPath + Carpeta); foreach (System.IO.FileInfo DirItem in Dir.GetFiles()) { if (DirItem.Name != "backup.7z" && DirItem.Name != "info.txt") { System.IO.File.Delete(this.BackupPath + Carpeta + DirItem.Name); } } } Progreso.ChangeStatus("Terminando transacción"); Trans.Commit(); } Progreso.End(); } Lfx.Workspace.Master.RunTime.Toast("La copia de seguridad se restauró con éxito. A continuación se va a reiniciar la aplicación.", "Copia Restaurada"); } }
public static System.Data.IDbCommand SetupDbCommand(BuilkInsert insertCommand, IConnection connection) { if (insertCommand.InsertCommands.Count == 0) { return(null); } var CmdText = new System.Text.StringBuilder(); var DbCommand = connection.DbConnection.CreateCommand(); var FieldList = new System.Text.StringBuilder(); foreach (var Fld in insertCommand.ColumnValues) { if (FieldList.Length == 0) { FieldList.Append(@"""" + Fld.ColumnName + @""""); } else { FieldList.Append(@", """ + Fld.ColumnName + @""""); } } CmdText.Append(@"INSERT INTO """ + string.Join <string>(",", insertCommand.Tables) + @""" (" + FieldList.ToString() + ") VALUES "); var CmdNum = 1; foreach (Insert Cmd in insertCommand.InsertCommands) { var ParamList = new System.Text.StringBuilder(); foreach (IColumnValue ThisField in Cmd.ColumnValues) { string FieldParam; var ParamName = "@" + ThisField.ColumnName + "_" + CmdNum.ToString(); if (ThisField.Value is qGen.SqlFunctions) { switch (((qGen.SqlFunctions)(ThisField.Value))) { case SqlFunctions.Now: FieldParam = "NOW()"; break; default: throw new NotImplementedException(); } } else if (ThisField.Value is qGen.SqlExpression) { FieldParam = ThisField.Value.ToString(); } else { if (connection.DbConnection is System.Data.Odbc.OdbcConnection) { FieldParam = "?"; } else { FieldParam = ParamName; } } if (ParamList.Length == 0) { ParamList.Append(FieldParam); } else { ParamList.Append(", " + FieldParam); } if (FieldParam == "?" || FieldParam.Substring(0, 1) == "@") { var Param = connection.Factory.Driver.GetParameter(); Param.ParameterName = ParamName; if (ThisField.Value is DbDateTime && ThisField.Value != null) { Param.Value = ((DbDateTime)(ThisField.Value)).Value; } else { Param.Value = ThisField.Value; } if (ThisField.DataType == Lazaro.Orm.ColumnTypes.Blob) { Param.DbType = System.Data.DbType.Binary; } // FIXME: No debería hacer una excepción para ODBC if (connection.Factory.Driver is OdbcDriver && ThisField.DataType == Lazaro.Orm.ColumnTypes.Blob) { ((System.Data.Odbc.OdbcParameter)Param).OdbcType = System.Data.Odbc.OdbcType.VarBinary; } DbCommand.Parameters.Add(Param); } } if (CmdNum > 1) { CmdText.AppendLine(","); } CmdText.Append(@"(" + ParamList.ToString() + ")"); CmdNum++; } DbCommand.CommandText = CmdText.ToString(); return(DbCommand); }