I didn't know that, that's why it was happening. I didn't post my models, as
I wasn't sure that would help.
Thanks for your help Daniel,
----
Miguel Araujo
@maraujop
2011/1/28 Daniel Roseman <dan...@roseman.org.uk>
> On Saturday, January 22, 2011 1:38:22 PM UTC, maraujop wrote:
>>
>> Hi everyone,
>>
>> I have been working on reducing DB queries in my project with great
>> results. But I have realized that select_related in one of my models doesn't
>> preload all the ForeignKeys and OneToOneFields, it preloads 3 out of 5.
>> Actually the 3 preloaded are ForeignKeys and the other 2 are OneToOneFields.
>> Before trying to reproduce this problem in a simplified schema, I need
>> someone to confirm this is unusual.
>>
>> If I do a select_related('names', 'of', 'the', 'five', 'fks') everything
>> is loaded. Last thing I can say is that those OneToOneFields point models
>> that reference back to model pointing at them, for performance reasons. I
>> reckon this can be a bug.
>>
>> Thanks, best regards
>>
>> ----
>> Miguel Araujo
>> @maraujop
>>
>
> It would have helped if you'd posted your model. If your relationships are
> defined as null=True, then select_related() doesn't follow them unless you
> specify them explicitly.
> --
> DR.
>
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