Question

I am using callable for a read-only field in Django admin, like this:

class ItemAdmin(admin.ModelAdmin):
    fields = ('real_value','estimated_value', )
    readonly_fields = ('estimated_value', )

class Item(models.Model):
    real_value = models.CharField(... , verbose_name=u'a nice label')

    def get_estimated_value(self):
        return ...some value...
    estimated_value = property(get_estimated_value)

Now, I just want to add some nice label for estimated_value to admin form. Can this be (reasonably) done? 🙂

Answer 1

Here is an exmaple

class ItemForm(forms.ModelForm):
    estimated_value = forms.CharField(max_length=10)
    class Meta:
        model = Item
    def __init__(self, *args, **kwargs):
        super(ItemForm, self).__init__(*args, **kwargs)
        if kwargs.has_key('instance'):
            instance = kwargs['instance']
            self.initial['estimated_value'] = instance.estimated_value

Then add that form to the admin

class ItemAdmin(admin.ModelAdmin):
    model = Item
    form = ItemForm