Django-pyodbc mssql error for dumpdata - django

Question

I am trying to perform a sudo ./manage.py dumpdata on a mssql db from my django project, but keep getting:
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/commands/dumpdata.py", line 158, in handle
stream=self.stdout)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/serializers/__init__.py", line 128, in serialize
s.serialize(queryset, **options)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/serializers/base.py", line 52, in serialize
for obj in queryset:
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/commands/dumpdata.py", line 150, in get_objects
for obj in queryset.iterator():
File "/opt/bitnami/python/lib/python2.7/site-packages/django/db/models/query.py", line 265, in iterator
for row in compiler.results_iter():
File "/opt/bitnami/python/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 701, in results_iter
for rows in self.execute_sql(MULTI):
File "/opt/bitnami/python/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 785, in execute_sql
cursor = self.connection.cursor()
File "/opt/bitnami/python/lib/python2.7/site-packages/django/db/backends/__init__.py", line 165, in cursor
cursor = self.make_debug_cursor(self._cursor())
File "/opt/bitnami/python/lib/python2.7/site-packages/sql_server/pyodbc/base.py", line 230, in _cursor
autocommit=autocommit)
pyodbc.Error: ('IM002', '[IM002] [unixODBC][Driver Manager]Data source name not found, and no default driver specified (0) (SQLDriverConnect)')
I have done the configuration mentioned in https://code.google.com/p/django-pyodbc/wiki/FreeTDS, and I get all the test working (FreeTDS & ODBC).
Here is my current settings.py database config:
DATABASES = {
...
'vcoe':
{
'ENGINE' : 'sql_server.pyodbc',
'NAME' : 'VOIP',
'USER' : '******',
'PASSWORD' : '******',
'OPTIONS' : {
'driver': 'FreeTDS',
'dsn': 'VCOE',
}
}
}
DATABASE_ENGINE = 'sql_server.pyodbc'
DATABASE_NAME = 'VOIP'
DATABASE_USER = '******'
DATABASE_PASSWORD = '******'
DATABASE_OPTIONS = {
'driver': 'FreeTDS',
'dsn': 'VCOE', # ODBC DSN name defined in your odbc.ini
}
When I try and run ./manage.py test I get:
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/commands/test.py", line 50, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/commands/test.py", line 71, in execute
super(Command, self).execute(*args, **options)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/core/management/commands/test.py", line 88, in handle
failures = test_runner.run_tests(test_labels)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/test/runner.py", line 147, in run_tests
old_config = self.setup_databases()
File "/opt/bitnami/python/lib/python2.7/site-packages/django/test/runner.py", line 109, in setup_databases
return setup_databases(self.verbosity, self.interactive, **kwargs)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/test/runner.py", line 299, in setup_databases
serialize=connection.settings_dict.get("TEST", {}).get("SERIALIZE", True),
File "/opt/bitnami/python/lib/python2.7/site-packages/django/db/backends/creation.py", line 362, in create_test_db
self._create_test_db(verbosity, autoclobber)
File "/opt/bitnami/python/lib/python2.7/site-packages/django/db/backends/creation.py", line 455, in _create_test_db
with self._nodb_connection.cursor() as cursor:
File "/opt/bitnami/python/lib/python2.7/site-packages/django/db/backends/__init__.py", line 167, in cursor
cursor = utils.CursorWrapper(self._cursor(), self)
File "/opt/bitnami/python/lib/python2.7/site-packages/sql_server/pyodbc/base.py", line 181, in _cursor
raise ImproperlyConfigured('You need to specify NAME in your Django settings file.')
django.core.exceptions.ImproperlyConfigured: You need to specify NAME in your Django settings file.
I have tried to remove the DATABASES = {...} section and only leave the DATABASE_XXX but get:
django.core.exceptions.ImproperlyConfigured: settings.DATABASES is improperly configured. Please supply the ENGINE value. Check settings documentation for more details.
Im currently using on client:
Ubuntu 14.04.1 LTS
Python 2.7.6
Django 1.7.8
pyodbc==3.0.10
django-pyodbc==0.2.8
Server I'm reaching is:
Microsoft Server 2003 running: MSSQL 2005
Here is /etc/odbcinst.ini:
[FreeTDS]
Description = TDS driver (Sybase/MS SQL)
Driver = /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
Setup = /usr/lib/x86_64-linux-gnu/odbc/libtdsS.so
CPTimeout =
CPReuse =
Double checked path, all files are present
Here is my /etc/odbc.ini:
[ODBC Data Sources]
ODBCNAME = Microsoft SQL Server
[VCOE]
Driver = FreeTDS
Description = VOIP Legacy Database
Trace = No
Servername = VOIP
Database = VOIP
[Default]
Driver = /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
here is my /etc/freetds/freetds.conf:
[VOIP]
host = 142.117.139.***
port = 1433
tds version = 8.0

Answer 1

You're using a very, very old version of django-pyodbc that is no longer maintained. That was last updated in 2011. I've had problems with older versions and using dumpdata and dbshell. I would recommend using this version, actively maintained, which has been working wonderfully for me in several Django projects:
https://github.com/michiya/django-pyodbc-azure
Note, to install it, you'll have to do this, since you're not using Django 1.8:
pip install django-pyodbc-azure<1.8
Off-topic: I'd recommend using Django 1.8.x if you're just starting on a project. While Django 1.7.x is still supported, Django 1.8.x is a long-term release, meaning it will be supported for at least three years. Good luck!