I want to only return items that don\'t have associated images.My relationship is something like this:
I\'ve got a model similar to this: class Per开发者_JS百科son(models.Model): name = models.CharField(max_length=40)
I have a very strange problem, I have a queryset that join with itself, when I try to access the p开发者_StackOverflow社区arent record information using a[n] it works, when I loop through it doesn\'t.
I have a model like this: class Sales(models.Model): item = models.CharField(max_length=40) date_sold = models.DateTimeField()
In my Django app I want to use select_related() on a QuerySet to \"follow\" a ForeignKey field, but I only need to access a few of the fields on the \"followed\" model instance. Can I use the defer()
I have two models: from django.db import Models LANGUAGES = ( (\'en\',\'English\'), (\'es\',\'Spanish\'),
How do I specify an arbitrary Django query filter at runtime? Normally one uses filters like so... query_set = MyModel.objects.filter(name__iexact=\'foobar\')
I\'m trying to sort my QuerySet based on how the objects in the QuerySet are evaluated as Strings. So my model looks something like this:
Consider the following case: class MyModelManager(models.Manager): def my_filter(self): return [some code here].filter(field_A__gt=3)
Lots of searchi开发者_运维知识库ng, found nothing so far. In my django app, Model_X is rated by my users using a very standard ratings model.I have a standalone function that processes a LOT of data
加载中,请稍侯......