#24858: get_foo_display with the ArrayField ----------------------------------+-------------------------------------- Reporter: MounirMesselmeni | Owner: Type: Uncategorized | Status: new Component: contrib.postgres | Version: 1.8 Severity: Normal | Resolution: Keywords: | Triage Stage: Unreviewed Has patch: 0 | Needs documentation: 0 Needs tests: 0 | Patch needs improvement: 0 Easy pickings: 0 | UI/UX: 0 ----------------------------------+-------------------------------------- Description changed by MounirMesselmeni:
Old description: > I think using ArrayField as a many choices field would be awesome. > Passing choices to ArrayField works fine with MultipleChoiceField on the > form. > But calling get_foo_display return a TypeError: unhashable type: 'list', > maybe this method need to check if the field is an ArrayField it can > return a string representation of the choices separated by comma. > > {{{#!python > class Example(models.Model): > CHOICES = ( > (1, 'value1'), > (2, 'value2'), > (3, 'value3'), > ) > > multi_choices_array = ArrayField( > base_field=models.IntegerField(), > choices=CHOICES, > ) > > example = Example.objects.create(multi_choices_array= [1, 2]) > example.get_multi_choices_array_display() > # Will raise a Type Error exception > > }}} New description: I think using ArrayField as a many choices field would be awesome. Passing choices to ArrayField works fine with MultipleChoiceField on the form. But calling get_foo_display return a TypeError: unhashable type: 'list', maybe this method need to check if the field is an ArrayField it can return a string representation of the choices separated by comma. {{{#!python class Example(models.Model): CHOICES = ( (1, 'value1'), (2, 'value2'), (3, 'value3'), ) multi_choices_array = ArrayField( base_field=models.IntegerField(), choices=CHOICES, ) # Adding this method will show the values def multi_choices_array_display(self): result = '' choices = dict(self.CHOICES) for index, value in enumerate(self.multi_choices_array): result += "{0}".format(choices[value]) if not index == len(self.multi_choices_array) - 1: result += ', ' return result example = Example.objects.create(multi_choices_array= [1, 2]) example.get_multi_choices_array_display() # Will raise a Type Error exception example.multi_choices_array_display() # Will print 'value1, value2' }}} -- -- Ticket URL: <https://code.djangoproject.com/ticket/24858#comment:3> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/074.c089ca1f7ea61e110e0c2cdec1df8cb1%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.