Updating SQL Server table with GEOGRAPHY column in Django - sql-server

Question

I have a Django 1.8.3 application that I'm connecting to SQL Server Enterprise 2012 as one of the databases. I am using django-pyodbc-azure==1.8.3.0 and my connection looks like this:
'sql_server': {
'ENGINE': 'sql_server.pyodbc',
'NAME': 'mydb',
'USER': 'myuser',
'PASSWORD': 'mypass',
'HOST': '173.1.1.1',
'PORT': 1433,
'OPTIONS': {
'host_is_server': True,
}
},
I have a column in a table in the database that was created as such:
ALTER TABLE mytable ADD geo AS GEOGRAPHY::Point (
latitude
,longitude
,4326
) persisted;
CREATE spatial INDEX SI_mytable__geo ON mytable (geo)
When trying to update any column in this table via the Django admin, I receive this error:
('42000', "[42000] [FreeTDS][SQL Server]UPDATE failed because the
following SET options have incorrect settings: 'ANSI_NULLS,
QUOTED_IDENTIFIER, CONCAT_NULL_YIELDS_NULL, ANSI_WARNINGS,
ANSI_PADDING'. Verify that SET options are correct for use with
indexed views and/or indexes on computed columns and/or filtered
indexes and/or query notifications and/or XML data type methods and/or
spatial index operations. (1934) (SQLExecDirectW)")
My database currently has SET options like this:
SELECT
is_ansi_nulls_on,
is_ansi_padding_on,
is_ansi_warnings_on,
is_arithabort_on,
is_concat_null_yields_null_on,
is_numeric_roundabort_on,
is_quoted_identifier_on
FROM sys.databases
is_ansi_nulls_on is_ansi_padding_on is_ansi_warnings_on is_arithabort_on is_concat_null_yields_null_on is_numeric_roundabort_on is_quoted_identifier_on
0 0 0 0 0 0 0
I only receive this error in production and not when running in development on my laptop. I understand that I need to correctly update the SET options, per the error and this answer: https://stackoverflow.com/a/9235638/1753891
How can I tell django-pyodbc-azure to send the correct SET options prior to updating this table?
Or do I need to update the options on the database itself and, if so, are they any potential pitfalls to watch out for if I change these SET options?

Answer 1

I ending up changing the SET options in the model's save method and this is working for now.
class MyModel(models.Model):
# Model fields here
def save(self, force_insert=False, force_update=False, using=None,
update_fields=None):
cursor = connections['sql_server'].cursor()
cursor.execute("""SET ANSI_NULLS ON
SET QUOTED_IDENTIFIER ON
SET CONCAT_NULL_YIELDS_NULL ON
SET ANSI_WARNINGS ON
SET ANSI_PADDING ON""")
cursor.close()
super(MyModel, self).save(force_insert, force_update, using, update_fields)