Hello Javier,
I did the verification to see what is taking so much time to fetch and I
realise it is because my model "TmyObject" is related to another class
model driving his caracteristics. For example, it's like
TmyObject can be any car
I have another model called "TobjectType" who is a list
of car type (SUV, trucks, etc.)
I have a model called "TObjectAttribute" who is the
generic list of car caracteristics (how many doors, horse power, 4 weels
drive, etc)
I have a model called TrTypeAttributeList to generate a
list of attribute for a type (ex.: SUV has doors, horse power, weel drive,
etc.)
Finally, I have a model called TrObjectCaracteristic who
has 2 FK, one from TmyObject and one from TrTypeAttributeList and a value
field. I did not define a __unicode__ method for TrObjectCaracteristic.
This is what is taking the most of the time. the gattering of the list of
TObjectAttribute, 3 or 4 times each at a time because TmyObject has 3-4
attributes value. Because I called it as an admin.StackedInline object in
the admin page.
I don't know how to resolve this issue.
Regards,
VB
2012/3/13 Javier Guerra Giraldez <jav...@guerrag.com>
> On Tue, Mar 13, 2012 at 2:14 PM, Phanounou <virginia.bel...@gmail.com>
> wrote:
> > Hello,
> >
> > have tryed to use the formfield_for_foreignkey() and
> > formfield_for_manytomany() in the admin.py file. In fact, I have reduced
> > the reponse time (around 10 sec. less then before) by replacing extra =
> 2 by
> > extra=0 in my admin.StackedInline objects. It still taking 20-24 seconds
> to
> > edit an object in the admin interface. The 2 methods mention on top did
> not
> > help to reduce the time. I don't know what else to try now I'm stuck. Any
> > one has a subjection?
>
>
> this is what did the trick for me:
>
> def formfield_for_foreignkey(self, db_field, request, **kwargs):
> if db_field.name == 'pagina':
> kwargs['queryset'] = Pagina.objects.select_related()
> return super(EventAdmin,
> self).formfield_for_foreignkey(db_field,
> request, **kwargs)
>
>
> in short, it adds the select_related() to the queryset used for the
> 'pagina' foreign key. that was needed because the __unicode__()
> method of the Pagina model uses some related fields.
>
> but you still haven't verified what generates the thousands of
> queries. take the tieme to read the SQL generated to see what is it
> fetching and why.
>
>
> --
> Javier
>
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