Question

I’m starting with Django. I had some site set up with SQLite working but after changing DB engine to postgresql manage.py syncdb returns errors.I’ve been googling for 2 days but still nothing works for me.Postgres user ‘joe’ has superuser rights and local ‘joe’ db exists.

Postgresql is running:

/etc/init.d/postgresql status
Running clusters: 9.1/main

Here’s my part of settings.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',  #
        'NAME': 'joe',                                       # 
        'USER': 'joe',                                       # 
        'PASSWORD': 'asdf',                                  # 
        'HOST': 'localhost',                                 # 
        'PORT': '5432',                       .
    }
}

And the errors:

$ python manage.py syncdb
Syncing...
Traceback (most recent call last):
  File "manage.py", line 11, in <module>
    execute_manager(settings)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 438, in execute_manager
    utility.execute()
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/base.py", line 191, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/south/management/commands/syncdb.py", line 90, in handle_noargs
    syncdb.Command().execute(**options)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 59, in handle_noargs
    tables = connection.introspection.table_names()
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 792, in table_names
    return self.get_table_list(cursor)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/db/backends/postgresql/introspection.py", line 31, in get_table_list
    AND pg_catalog.pg_table_is_visible(c.oid)""")
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/db/backends/util.py", line 34, in execute
    return self.cursor.execute(sql, params)
  File "/home/m/.virtualenvs/mayan/local/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 44, in execute
    return self.cursor.execute(query, args)
django.db.utils.DatabaseError: current transaction is aborted, commands ignored until end of transaction block

Thanks!

Answer 1

My suggestion would be to go to django.db.backends.postgresql_psycopg2.base and insert a print query so that CursorWrapper looks like.

class CursorWrapper:
    ...
    def execute(self, query, args=None):
        print query # New print statement here
        try:
            return self.cursor.execute(query, args)

That will print out every query hitting the database, and hopefully allow you to identify the offending SQL query when trying to run python manage.py syncdb