Django PostGis BUG?

[christop...@gmail.com]

I'm trying to create my database tables (python manage.py migrate) using Postgis. However it fails because the driver try to connect do default database "postgres" which is not my default name. I'm using django==1.8 and psycopg2==2.6.2 

If i look the documentation of psycopg (http://initd.org/psycopg/docs/module.html) The basic connection parameters are:

dbname – the database name (only in the dsn string)
database – the database name (only as keyword argument)
user – user name used to authenticate
password – password used to authenticate
host – database host address (defaults to UNIX socket if not provided)
port – connection port number (defaults to 5432 if not provided)

Here is my database connection: 

DATABASES = {
 'default': {
 'ENGINE': 'django.contrib.gis.db.backends.postgis', 
 'NAME': '<mydatabase>',
 'USER': '<myuser>',
 'PASSWORD': '<mypassword>',
 'HOST':  ‘bdsn15qbq8xaqoa-postgresql.services.clever-cloud.com'
 'PORT': '5432', 
 'URI':'postgis://myuser:mypassword@bdsn15qbq8xaqoa-postgresql.services.clever-cloud.com:5432/bdsn15qbq8xaqoa'
}
}

I have added some trace to the connexion and as we can see, the driver uses postgres as name.

[('dbname', '**postgres**'), ('user', 'myuser'), ('password', 'mypassword'), ('host', 'bdsn15qbq8xaqoa-postgresql.services.clever-cloud.com'), ('port', '5432’)]

After some research, i have edited the file :

 vi django/db/backends/postgresql_psycopg2/base.py

Function : 

def get_connection_params(self):

        settings_dict = self.settings_dict

        # None may be used to connect to the default 'postgres' db

        if settings_dict['NAME'] == '':

            from django.core.exceptions import ImproperlyConfigured

            raise ImproperlyConfigured(

                "settings.DATABASES is improperly configured. "

                "Please supply the NAME value.")

        conn_params = {

            'database': settings_dict['NAME'] or 'postgres',

        }

        print settings_dict

        conn_params.update(settings_dict['OPTIONS'])

        conn_params.pop('isolation_level', None)

        if settings_dict['USER']:

            conn_params['user'] = settings_dict['USER']

        if settings_dict['PASSWORD']:

            conn_params['password'] = force_str(settings_dict['PASSWORD'])

        if settings_dict['HOST']:

            conn_params['host'] = settings_dict['HOST']

        if settings_dict['PORT']:

            conn_params['port'] = settings_dict['PORT']

        return conn_params

AND ADDED : 

   if settings_dict['DBNAME']:

            conn_params['dbname'] = settings_dict['DBNAME']

Now if i relaunch the database creation : python manage.py migrate it is working fine using the good connection URI. 

[('dbname', '**mydatabase**'), ('user', 'myuser'), ('password', 'mypassword'), ('host', 'bdsn15qbq8xaqoa-postgresql.services.clever-cloud.com'), ('port', '5432’) 

It is a bug ? 

Thanks a lot 

Christophe

[Jani Tiainen]

Hi,

Could you verify what your database settings really are for example printing them out at the end of settings.py. (Or in any view import your settings to see that values really are what you expect.)

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[Tim Graham]

This query is also duplicated on Trac: https://code.djangoproject.com/ticket/26893 (closed as "worksforme").

For future reference, please ask "is it a bug?" questions on django-users and wait for confirmation that it is a bug before creating a Trac ticket.