ganeti_web/migrations/__init__.py

   1
   2 def db_table_exists(table, cursor=None):
   3     """
   4     Determine if a table exists in the database
   5
   6     cribbed from:
   7     https://gist.github.com/527113/307c2dec09ceeb647b8fa1d6d49591f3352cb034
   8     """
   9
  10     try:
  11         if not cursor:
  12             from django.db import connection
  13             cursor = connection.cursor()
  14         if not cursor:
  15             raise Exception
  16         table_names = connection.introspection.get_table_list(cursor)
  17     except:
  18         raise Exception("unable to determine if the table '%s' exists" % table)
  19     else:
  20         return table in table_names