text: Q:
  
  django mulitidb
  
  Hi i am using django 1.2 .I my case i have few models which are present in one db and others on second db.I have changed my settings.py file with the two database details
  But when i run the server it says relation not exist.
  How can i tell that for this model refer 'a' database and for others refer 'b' database.
  #models.py
  
  ### this class is in a database #####
  
  class Test(models.Model):
     id=models.AutoField(primary_key=True)
     ...
     ...
     ...
     ...
     class Meta:
        app_label=ugettext('Test')
        db_table='testing'
        verbose_name=ugettext_lazy('Testing 1,2')
     def __unicode__(self):
         return self.name
  
   ### this class is in b database #####
  
   class Test2(modes.Model):
      id=models.AutoField(primary_key=True)
      name=models.CharField(max_length=200)
      ...
      ....
      ....
      class Meta:
        app_label=ugettext('Test')
        db_table='testing2'
        verbose_name=ugettext_lazy('1,2')
      def __unicode__(self):
         return self.name
  
    # settings.py
     DATABASES= {  'default': {
            'NAME': 'a',
            'ENGINE': 'django.db.backends.postgresql_psycopg2',
            'USER': 'asdf',
            'PASSWORD': '123'
  
           },
          'users': {
            'NAME': 'b',
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'USER': 'asdf',
        'PASSWORD': '123'
  
    }
   }
  
  A:
  
  The django documentation has a special page for multi-db related things:
  
  http://docs.djangoproject.com/en/dev/topics/db/multi-db/
  
  For example, a verbose way would be to specify the database to use, when a query is made, see:
  
  http://docs.djangoproject.com/en/dev/topics/db/multi-db/#manually-selecting-a-database-for-a-queryset
  
  For a general approach, you should specify some DATABASE_ROUTERS: 
  
  http://docs.djangoproject.com/en/dev/topics/db/multi-db/#using-routers
  
  