CODEWITHSUNDEEP
pythondjangodjango-admin
sirjay
sirjay

Reputation: 1766

Django admin: how to predefine field values?

I use Django 1.11.10 and python 3.6; I have Category model that has name and parent. Parent field links to itself. But when I create new Category model, I want choose parent from already created categories that have no parents. So how to predefine this list?

class Category(models.Model):
    name = models.CharField(max_length=50, unique=True)
    parent = models.ForeignKey('self', null=True, blank=True)

------

class CategoryForm(forms.ModelForm):
    class Meta:
        model = Category
        fields = ['name', 'parent']

class CategoryAdmin(admin.ModelAdmin):
    form = CategoryForm

admin.site.register(Category, CategoryAdmin)

Upvotes: 0

Views: 84

Answers (1)

wtreston
wtreston

Reputation: 1061

I think you want a drop down in the form when the a accesses the front end.

You can add this to your form:

parent = forms.forms.ModelChoiceField(queryset= Category.objects.all(), required = True)

So the final form would look like:

class CategoryForm(forms.ModelForm):
    parent = forms.forms.ModelChoiceField(queryset= Category.objects.all(), required = True)
    class Meta:
        model = Category
        fields = ['name', 'parent']

Let me know if this is what you wanted!

Upvotes: 1

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