How do I use ModelSerializer in Django REST Framework?

How do I use ModelSerializer in Django REST Framework?

To use ModelSerializer, first import it from rest_framework.serializers. Then, create a serializer class that inherits from ModelSerializer.

Can you show me a simple example?

Sure! Here's a basic example:

from rest_framework import serializers
from .models import MyModel

class MyModelSerializer(serializers.ModelSerializer):
    class Meta:
        model = MyModel
        fields = '__all__'

What if I want to include only specific fields?

You can specify the fields you want to include in the fields attribute like this:

class MyModelSerializer(serializers.ModelSerializer):
    class Meta:
        model = MyModel
        fields = ['field1', 'field2']

How do I validate data in ModelSerializer?

You can add custom validation methods in your serializer class. For example:

def validate_field1(self, value):
    if value < 0:
        raise serializers.ValidationError('Field1 must be positive.')
    return value