What are Django model forms and how do I use them?

What are Django model forms and how do I use them?

Django model forms are a way to create forms based on your Django models. They automatically generate form fields from model fields.

Can you show me an example of how to create a model form?

Sure! First, define your model, then create a form class that inherits from forms.ModelForm. Here's a quick example:

from django import forms
from .models import MyModel

class MyModelForm(forms.ModelForm):
    class Meta:
        model = MyModel
        fields = '__all__'

How do I validate the data in a model form?

You can override the clean method in your form class to add custom validation logic. For example:

def clean(self):
    cleaned_data = super().clean()
    # Add your validation logic here
    return cleaned_data

What if I want to customize the form fields?

You can customize form fields by defining them in your form class. For example:

class MyModelForm(forms.ModelForm):
    my_field = forms.CharField(label='Custom Label', max_length=100)
    class Meta:
        model = MyModel
        fields = ['my_field']