text: Opened 10 years ago
  Closed 10 years ago
  #3287 closed enhancement (fixed)
  [patch] Model methods in the change list can have checkmark icons by decorating with boolean=True
  Description
  Model methods that return true or false show up as 'True' or 'False' in the admin if you put them in the list_display. Which isn't anywhere near as nice as the checkmark icons that BooleanFields get. If you want to get them yourself you have to do this:
  def is_current(self): from django.conf import settings current = self.start_date <= datetime.now() and self.end_date >= datetime.now() BOOLEAN_MAPPING = {True: 'yes', False: 'no', None: 'unknown'} result_repr = '<img src="%simg/admin/icon-%s.gif" alt="%s" />' % (settings.ADMIN_MEDIA_PREFIX, BOOLEAN_MAPPING[current], current) return result_repr is_current.allow_tags = True
  Which is messy and brittle.
  This patch lets you simply decorate the method with boolean=True and it works just like a booleanField
  def is_current(self): return self.start_date <= datetime.now() and self.end_date >= datetime.now() is_current.boolean = True
  This is my first patch, so please look it over and advise if there is any way the styling could be improved to be more pythonic, or more djangonic. :)
  I couldn't find any current tests that cover items_for_result() so I wasn't sure how to add tests for this. I'm pretty sure I could add to an existing test set, but am unsure how to go about creating a full new one.
  That said, the change is pretty trivial.
  diff to add boolean=True info to the model creation docs