Question

I have a model with SlugField. Value of that field is created when the model instance is saved for the first time:

from django.db import models
from django.template.defaultfilters import slugify as default_slugify

class SlugModel(models.Model):
    name = models.CharField(max_length=100)
    slug = models.SlugField(max_length=100)

    def save(self, *args, **kwargs):
        if not self.pk:
            self.slug = self.slugify(self.name)
        return super(SlugModel, self).save(*args, **kwargs)

    def slugify(self, tag):
        slug = default_slugify(tag)
        return slug

If i use that model in ModelForm the slug field is by default displayed.

from django.forms import ModelForm

class SlugModelForm(ModelForm):
    class Meta:
        model = SlugModel

How to automatically prevent all ModelForms from displaying of all of it’s SlugFields without manually specifying ModelForm.exclude or SlugField(editable=False) on each form/field?.

Answer 1

I think you could also extend Lychas response, create a base class and inherit from that one:

class MyModelForm(ModelForm):
    class Meta:
    exclude = ('slug',)
    abstract = True

class AnyForm(MyModelForm):
#more here

This is untested though.