Insert the object into the database

def insert(self):
    """Insert the object into the database"""
    if not self.curs:
      raise LIGOLwDBError, "Database connection not initalized"
    if len(self.table) == 0:
      raise LIGOLwDBError, 'attempt to insert empty table'
    for tab in self.table.keys():
      # find and add any missing unique ids
      generate = []
      missingcols = [k for k in self.ldb.uniqueids[tab] 
        if k not in self.table[tab]['column']]
      for m in missingcols:
        generate.append(',BLOB(GENERATE_UNIQUE())')
        self.table[tab]['orderedcol'].append(m)
      # and construct the sql query
      self.table[tab]['query'] = ' '.join( 
        ['INSERT INTO', tab, '(', ','.join(self.table[tab]['orderedcol']), 
        ') VALUES (', ','.join(['?' for x in self.table[tab]['column']]) , 
        ''.join(generate), ')'])
    for tabtup in self.ldb.tables:
      tab = tabtup[0].lower()
      try:
        try: 
          self.curs.executemany(self.table[tab]['query'],
            self.table[tab]['stream'])
          rowcount = self.curs.rowcount
        except DB2.Error, e:
          self.curs.execute('rollback')
          msg = e[2] 
          msg += self.xml() + '\n' 
          msg += str(self.table[tab]['query']) + '\n' 
          msg += str(self.table[tab]['stream']) + '\n'
          raise LIGOLwDBError, msg
        except DB2.Warning, e:
          self.curs.execute('rollback')
          raise LIGOLwDBError, e[2]
        #except Exception, e:
        #  self.curs.execute('rollback')
        #  raise LIGOLwDBError, e[2]
      except KeyError:
        pass
    self.curs.execute('commit')
    return rowcount