Ejemplo n.º 1
0
void QgsPGSchemaItem::renameSchema()
{
  QgsNewNameDialog dlg( tr( "schema '%1'" ).arg( mName ), mName );
  dlg.setWindowTitle( tr( "Rename Schema" ) );
  if ( dlg.exec() != QDialog::Accepted || dlg.name() == mName )
    return;

  QString schemaName = QgsPostgresConn::quotedIdentifier( mName );
  QgsDataSourceUri uri = QgsPostgresConn::connUri( mConnectionName );
  QgsPostgresConn *conn = QgsPostgresConn::connectDb( uri.connectionInfo( false ), false );
  if ( !conn )
  {
    QMessageBox::warning( nullptr, tr( "Rename Schema" ), tr( "Unable to rename schema." ) );
    return;
  }

  //rename the schema
  QString sql = QStringLiteral( "ALTER SCHEMA %1 RENAME TO %2" )
                .arg( schemaName, QgsPostgresConn::quotedIdentifier( dlg.name() ) );

  QgsPostgresResult result( conn->PQexec( sql ) );
  if ( result.PQresultStatus() != PGRES_COMMAND_OK )
  {
    QMessageBox::warning( nullptr, tr( "Rename Schema" ), tr( "Unable to rename schema %1\n%2" ).arg( schemaName,
                          result.PQresultErrorMessage() ) );
    conn->unref();
    return;
  }

  conn->unref();
  QMessageBox::information( nullptr, tr( "Rename Schema" ), tr( "Schema renamed successfully." ) );
  if ( mParent )
    mParent->refresh();
}
Ejemplo n.º 2
0
void QgsPGConnectionItem::createSchema()
{
  QString schemaName = QInputDialog::getText( nullptr, tr( "Create Schema" ), tr( "Schema name:" ) );
  if ( schemaName.isEmpty() )
    return;

  QgsDataSourceUri uri = QgsPostgresConn::connUri( mName );
  QgsPostgresConn *conn = QgsPostgresConn::connectDb( uri.connectionInfo( false ), false );
  if ( !conn )
  {
    QMessageBox::warning( nullptr, tr( "Create Schema" ), tr( "Unable to create schema." ) );
    return;
  }

  //create the schema
  QString sql = QStringLiteral( "CREATE SCHEMA %1" ).arg( QgsPostgresConn::quotedIdentifier( schemaName ) );

  QgsPostgresResult result( conn->PQexec( sql ) );
  if ( result.PQresultStatus() != PGRES_COMMAND_OK )
  {
    QMessageBox::warning( nullptr, tr( "Create Schema" ), tr( "Unable to create schema %1\n%2" ).arg( schemaName,
                          result.PQresultErrorMessage() ) );
    conn->unref();
    return;
  }

  conn->unref();
  refresh();
  // the parent should be updated
  if ( mParent )
    mParent->refreshConnections();
}
Ejemplo n.º 3
0
void QgsPGLayerItem::renameLayer()
{
  QString typeName = mLayerProperty.isView ? tr( "View" ) : tr( "Table" );
  QString lowerTypeName = mLayerProperty.isView ? tr( "view" ) : tr( "table" );

  QgsNewNameDialog dlg( tr( "%1 %2.%3" ).arg( lowerTypeName, mLayerProperty.schemaName, mLayerProperty.tableName ), mLayerProperty.tableName );
  dlg.setWindowTitle( tr( "Rename %1" ).arg( typeName ) );
  if ( dlg.exec() != QDialog::Accepted || dlg.name() == mLayerProperty.tableName )
    return;

  QString schemaName = mLayerProperty.schemaName;
  QString tableName = mLayerProperty.tableName;
  QString schemaTableName;
  if ( !schemaName.isEmpty() )
  {
    schemaTableName = QgsPostgresConn::quotedIdentifier( schemaName ) + '.';
  }
  QString oldName = schemaTableName + QgsPostgresConn::quotedIdentifier( tableName );
  QString newName = QgsPostgresConn::quotedIdentifier( dlg.name() );

  QgsDataSourceUri dsUri( mUri );
  QgsPostgresConn *conn = QgsPostgresConn::connectDb( dsUri.connectionInfo( false ), false );
  if ( !conn )
  {
    QMessageBox::warning( nullptr, tr( "Rename %1" ).arg( typeName ), tr( "Unable to rename %1." ).arg( lowerTypeName ) );
    return;
  }

  //rename the layer
  QString sql;
  if ( mLayerProperty.isView )
  {
    sql = QStringLiteral( "ALTER %1 VIEW %2 RENAME TO %3" ).arg( mLayerProperty.relKind == QLatin1String( "m" ) ? QStringLiteral( "MATERIALIZED" ) : QString(),
          oldName, newName );
  }
  else
  {
    sql = QStringLiteral( "ALTER TABLE %1 RENAME TO %2" ).arg( oldName, newName );
  }

  QgsPostgresResult result( conn->PQexec( sql ) );
  if ( result.PQresultStatus() != PGRES_COMMAND_OK )
  {
    QMessageBox::warning( nullptr, tr( "Rename %1" ).arg( typeName ), tr( "Unable to rename %1 %2\n%3" ).arg( lowerTypeName, mName,
                          result.PQresultErrorMessage() ) );
    conn->unref();
    return;
  }

  conn->unref();
  if ( mParent )
    mParent->refresh();
}
Ejemplo n.º 4
0
void QgsPGLayerItem::refreshMaterializedView()
{
  if ( QMessageBox::question( nullptr, QObject::tr( "Refresh Materialized View" ),
                              QObject::tr( "Are you sure you want to refresh the materialized view %1.%2?\n\nThis will update all data within the table." ).arg( mLayerProperty.schemaName, mLayerProperty.tableName ),
                              QMessageBox::Yes | QMessageBox::No, QMessageBox::No ) != QMessageBox::Yes )
    return;

  QgsDataSourceUri dsUri( mUri );
  QgsPostgresConn *conn = QgsPostgresConn::connectDb( dsUri.connectionInfo( false ), false );
  if ( !conn )
  {
    QMessageBox::warning( nullptr, tr( "Refresh View" ), tr( "Unable to refresh the view." ) );
    return;
  }

  QString schemaName = mLayerProperty.schemaName;
  QString tableName = mLayerProperty.tableName;
  QString schemaTableName;
  if ( !schemaName.isEmpty() )
  {
    schemaTableName = QgsPostgresConn::quotedIdentifier( schemaName ) + '.';
  }
  QString tableRef = schemaTableName + QgsPostgresConn::quotedIdentifier( tableName );

  QString sql = QStringLiteral( "REFRESH MATERIALIZED VIEW CONCURRENTLY %1" ).arg( tableRef );

  QgsPostgresResult result( conn->PQexec( sql ) );
  if ( result.PQresultStatus() != PGRES_COMMAND_OK )
  {
    QMessageBox::warning( nullptr, tr( "Refresh View" ), tr( "Unable to refresh view %1\n%2" ).arg( mName,
                          result.PQresultErrorMessage() ) );
    conn->unref();
    return;
  }

  conn->unref();
  QMessageBox::information( nullptr, tr( "Refresh View" ), tr( "Materialized view refreshed successfully." ) );
}
Ejemplo n.º 5
0
void QgsPGLayerItem::truncateTable()
{
  if ( QMessageBox::question( nullptr, QObject::tr( "Truncate Table" ),
                              QObject::tr( "Are you sure you want to truncate %1.%2?\n\nThis will delete all data within the table." ).arg( mLayerProperty.schemaName, mLayerProperty.tableName ),
                              QMessageBox::Yes | QMessageBox::No, QMessageBox::No ) != QMessageBox::Yes )
    return;

  QgsDataSourceUri dsUri( mUri );
  QgsPostgresConn *conn = QgsPostgresConn::connectDb( dsUri.connectionInfo( false ), false );
  if ( !conn )
  {
    QMessageBox::warning( nullptr, tr( "Truncate Table" ), tr( "Unable to truncate table." ) );
    return;
  }

  QString schemaName = mLayerProperty.schemaName;
  QString tableName = mLayerProperty.tableName;
  QString schemaTableName;
  if ( !schemaName.isEmpty() )
  {
    schemaTableName = QgsPostgresConn::quotedIdentifier( schemaName ) + '.';
  }
  QString tableRef = schemaTableName + QgsPostgresConn::quotedIdentifier( tableName );

  QString sql = QStringLiteral( "TRUNCATE TABLE %1" ).arg( tableRef );

  QgsPostgresResult result( conn->PQexec( sql ) );
  if ( result.PQresultStatus() != PGRES_COMMAND_OK )
  {
    QMessageBox::warning( nullptr, tr( "Truncate Table" ), tr( "Unable to truncate %1\n%2" ).arg( mName,
                          result.PQresultErrorMessage() ) );
    conn->unref();
    return;
  }

  conn->unref();
  QMessageBox::information( nullptr, tr( "Truncate Table" ), tr( "Table truncated successfully." ) );
}
Ejemplo n.º 6
0
void QgsPGSchemaItem::deleteSchema()
{
  // check if schema contains tables/views
  QgsDataSourceUri uri = QgsPostgresConn::connUri( mConnectionName );
  QgsPostgresConn *conn = QgsPostgresConn::connectDb( uri.connectionInfo( false ), false );
  if ( !conn )
  {
    QMessageBox::warning( nullptr, tr( "Delete Schema" ), tr( "Unable to delete schema." ) );
    return;
  }

  QString sql = QStringLiteral( "SELECT table_name FROM information_schema.tables WHERE table_schema='%1'" ).arg( mName );
  QgsPostgresResult result( conn->PQexec( sql ) );
  if ( result.PQresultStatus() != PGRES_TUPLES_OK )
  {
    QMessageBox::warning( nullptr, tr( "Delete Schema" ), tr( "Unable to delete schema." ) );
    conn->unref();
    return;
  }

  QStringList childObjects;
  int maxListed = 10;
  for ( int idx = 0; idx < result.PQntuples(); idx++ )
  {
    childObjects << result.PQgetvalue( idx, 0 );
    QgsPostgresSchemaProperty schema;
    if ( idx == maxListed - 1 )
      break;
  }

  int count = result.PQntuples();
  if ( count > 0 )
  {
    QString objects = childObjects.join( QStringLiteral( "\n" ) );
    if ( count > maxListed )
    {
      objects += QStringLiteral( "\n[%1 additional objects not listed]" ).arg( count - maxListed );
    }
    if ( QMessageBox::question( nullptr, QObject::tr( "Delete Schema" ),
                                QObject::tr( "Schema '%1' contains objects:\n\n%2\n\nAre you sure you want to delete the schema and all these objects?" ).arg( mName, objects ),
                                QMessageBox::Yes | QMessageBox::No, QMessageBox::No ) != QMessageBox::Yes )
    {
      conn->unref();
      return;
    }
  }
  else
  {
    if ( QMessageBox::question( nullptr, QObject::tr( "Delete Schema" ),
                                QObject::tr( "Are you sure you want to delete the schema '%1'?" ).arg( mName ),
                                QMessageBox::Yes | QMessageBox::No, QMessageBox::No ) != QMessageBox::Yes )
      return;
  }

  QString errCause;
  bool res = ::deleteSchema( mName, uri, errCause, count > 0 );
  if ( !res )
  {
    QMessageBox::warning( nullptr, tr( "Delete Schema" ), errCause );
  }
  else
  {
    QMessageBox::information( nullptr, tr( "Delete Schema" ), tr( "Schema deleted successfully." ) );
    if ( mParent )
      mParent->refresh();
  }
}