[Solved] Why does this serializer raise an error when validating?class UserSerializer(serializers.Serializer): email = serializers.EmailField() def validate(self, data): if 'example.com' not in data['email']:... | Django

Django - DRF Advanced Features

Why does this serializer raise an error when validating?

class UserSerializer(serializers.Serializer):
    email = serializers.EmailField()

    def validate(self, data):
        if 'example.com' not in data['email']:
            raise serializers.ValidationError('Email must be from example.com domain')

AThe validate method does not return the data

BEmailField does not support domain validation

CValidationError should be raised in validate_email instead

DThe email field is missing required attribute

Step-by-Step Solution

Solution:

Step 1: Check the validate method implementation
The method raises error correctly but does not return the data dictionary.
Step 2: Understand the requirement of validate method
It must return the validated data to avoid errors during serializer processing.
Final Answer:
The validate method does not return the data -> Option A
Quick Check:
Always return data from validate() method [OK]

Quick Trick: Return data at end of validate() to avoid errors [OK]

Common Mistakes:

MISTAKES

Forgetting to return data in validate()
Assuming raising error is enough without return
Misplacing validation logic

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Why does this serializer raise an error when validating?

Step 1: Check the validate method implementation

Step 2: Understand the requirement of validate method

Final Answer:

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