docs: def setDragTable(self, table):
          """
          Sets the table that will be linked with the drag query for this
          record.  This information will be added to the drag & drop information
          when this record is dragged from the tree and will be set into
          the application/x-table format for mime data.
          
          :sa     setDragQuery, XTreeWidgetItem.setDragData
          
          :param      table | <subclass of orb.Table>
          """
          if table and table.schema():
              self.setDragData('application/x-orb-table', table.schema().name())
          else:
              self.setDragData('application/x-orb-table', None)