Serializers for data conversion in Django - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the serializer base class.

Django

from rest_framework import [1]

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Aforms

Bmodels

Cviews

Dserializers

Attempts:

3 left

💡 Hint

Common Mistakes

Importing models instead of serializers

Importing views or forms by mistake

The serializers module from rest_framework provides the base classes to create serializers.

2fill in blank

medium

Complete the serializer class definition to inherit from the correct base class.

Django

class UserSerializer([1].Serializer):
    pass

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Amodels

Bserializers

Cviews

Dforms

Attempts:

3 left

💡 Hint

Common Mistakes

Inheriting from models.Serializer

Inheriting from views.Serializer

Serializer classes must inherit from serializers.Serializer to define how data is converted.

3fill in blank

hard

Fix the error in the serializer field declaration.

Django

class ProductSerializer(serializers.Serializer):
    name = serializers.[1]Field(max_length=100)

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AChar

BDate

CBoolean

DInteger

Attempts:

3 left

💡 Hint

Common Mistakes

Using IntegerField for text

Using BooleanField for names

The CharField is used for text fields like product names.

4fill in blank

hard

Fill both blanks to create a serializer that automatically maps model fields.

Django

class BookSerializer(serializers.[1]):
    class Meta:
        model = Book
        fields = [2]

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AModelSerializer

BSerializer

C'__all__'

D['title', 'author']

Attempts:

3 left

💡 Hint

Common Mistakes

Using Serializer instead of ModelSerializer

Listing fields manually when __all__ is intended

ModelSerializer automatically maps model fields. Using '__all__' includes all fields.

5fill in blank

hard

Fill all three blanks to define a serializer with custom validation.

Django

class CommentSerializer(serializers.Serializer):
    text = serializers.CharField(max_length=200)

    def validate_[1](self, value):
        if '[2]' in value.lower():
            raise serializers.ValidationError('[3]')
        return value

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Atext

Bspam

CNo spam allowed!

Dauthor

Attempts:

3 left

💡 Hint

Common Mistakes

Naming the validation method incorrectly

Checking the wrong field

Not raising ValidationError properly

The method validate_text validates the text field. It checks if the word 'spam' is in the text and raises an error message.