In Django, can you add a method to querysets?
- by Paul D. Waite
In Django, if I have a model class, e.g.
from django.db import models
class Transaction(models.Model):
...
then if I want to add methods to the model, to store reasonably complex filters, I can add a custom model manager, e.g.
class TransactionManager(models.Manager):
def reasonable_complex_filter(self):
return self.get_query_set().filter(...)
class Transaction(models.Model):
objects = TransactionManager()
And then I can do:
>>> Transaction.objects.reasonably_complex_filter()
Is there any way I can add a custom method that can be chained to the end of a query set from the model?
I.e. add the custom method in such a way that I can do this:
>>> Transaction.objects.filter(...).reasonably_complex_filter()
