1 import os

     2 import sys

     3 

     4 from django.db.backends import BaseDatabaseClient

     5 

     6 class DatabaseClient(BaseDatabaseClient):

     7     executable_name = 'psql'

     8 

     9     def runshell(self):

    10         settings_dict = self.connection.settings_dict

    11         args = [self.executable_name]

    12         if settings_dict['DATABASE_USER']:

    13             args += ["-U", settings_dict['DATABASE_USER']]

    14         if settings_dict['DATABASE_HOST']:

    15             args.extend(["-h", settings_dict['DATABASE_HOST']])

    16         if settings_dict['DATABASE_PORT']:

    17             args.extend(["-p", str(settings_dict['DATABASE_PORT'])])

    18         args += [settings_dict['DATABASE_NAME']]

    19         if os.name == 'nt':

    20             sys.exit(os.system(" ".join(args)))

    21         else:

    22             os.execvp(self.executable_name, args)

    23