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validate 2 fields
from rest_framework import serializers from . import models class GameSerializer(serializers.ModelSerializer): class Meta: fields = ('id', 'name') model = models.Game class PlayerSerializer(serializers.ModelSerializer): class Meta: fields = ('id', 'name', 'age', 'parent_approval') model = models.Player def validate_age(self, value): if value >= 13: return value raise serializers.ValidationError( 'Player age must be over 13') class ScoreSerializer(serializers.ModelSerializer): game = serializers.HyperlinkedRelatedField( read_only=True, view_name='apiv2:game-detail') player = serializers.HyperlinkedRelatedField( read_only=True, view_name='apiv2:player-detail') class Meta: fields = ('id', 'game', 'player', 'score') model = models.Score
Hey Savious, I'd recommend reading the docs and going to the section labeled
Object Level Validation, it allows you to validate multiple fields, which is needed for this challenge.
- First, you'd create a validate method, that takes
data(data being all the values passed in)
- Then check whether the player is less than 13 and has
- If they don't then raise a
serializers.ValidationError()with "Children under 13 require parental approval"
- Otherwise, just return the data passed into the validation method
Hopefully you can solve it with that, if you need any more help then the code below is an example of what it could look like.
class PlayerSerializer(serializers.ModelSerializer): class Meta: fields = ('id', 'name', 'age', 'parent_approval') model = models.Player def validate(self, data): if data['age'] < 13 and not data['parent_approval']: raise serializers.ValidationError('Children under 13 require parental approval') return data
Hope it helps!