> as shown in the picture, this i could do by add a method in the model
> getTienda1 and return the stock and do it for each store, but i want it to
> be created dinamically because the user could create a new store and it
will
> not be there.
>
> so this is my cuestion: can i do that?
Interesting question. You COULD try the following:
in the ProductAdmin ModelAdmin's class' __init__ you can define
list_display like
from store.models import Tienda
for store in Tienda.objects.all():
self.list_display.append('stock_tienda_{id}'.format(id=store.id))
this would give you the list of existing stores at server init time.
and then you could define your Product model's __getattr__ method something
like this:
def __getattr__(self, attr):
base = 'stock_tienda_'
if attr[:len(base)] == base:
return
Product.objects.filter(tienda=Tienda.objects.get(id=attr[len(base):]))
return super(Product, self).__getattr__(self, attr)
this should make the ModelAdmin's hack work
finally, you need a way to add new columns for newly created stores, so
maybe a post_save signal on Tienda objects
@receiver(post_save, sender=Tienda)
def add_to_product_list_display(sender, instance, new, **kwargs):
if new:
# I don't know how to get the ModelAdmin's instance for a given
class,
# but it must be something in django.contrib.admin.site
product_admin.list_display.append('stock_tienda_{id}'.format(id=
instance.id))
you probably need another listener before .delete of stores, and I'm not
certain the __getattr__ hack will work, but this sounds interesting.
Please try on those lines, and let me know if this worked, I'm most
interested
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