I have a model, which has a related model, which then has a related
m2m field (See defs below).
I want to add a method to the m2m model (ie: "Button") which, when
called in a template, will get me the original record that called the
relation. Is this possible? See method attempt below in the "Button"
model, called "get_duid". The point in this attempt is to be able to
return the original id within the template when iterating through the
buttons of a particular "DocumentUnit".
class DocumentUnit(models.Model):
parent = models.ForeignKey('self', null=True, blank=True,
related_name='children')
unittype = models.ForeignKey(DocumentUnitType,
related_name='du')
content = models.TextField()
class DocumentUnitType(models.Model):
name = models.CharField(max_length=40)
description = models.CharField(max_length=255, blank=True)
buttons = models.ManyToManyField('Button', null=True,
blank=True, related_name='button_du_types')
class Button(models.Model):
btn_code = models.CharField(max_length=20)
title = models.CharField(max_length=50, blank=True)
href = models.CharField(max_length=150, blank=True)
viewname = models.CharField(max_length=50, blank=True)
css_class = models.CharField(max_length=70, blank=True)
text = models.CharField(max_length=50, blank=True)
prefix_id = models.CharField(max_length=20)
order = models.IntegerField(blank=True, null=True)
def get_duid(self):
return self.button_du_types.pk
Thanks for any help you can give me with this.
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