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Tim Wicks12,144 Points
Cannot get correct average following instructions
using instructions I cannot get correct average - it would be great to have an output field so we can debug in this situations.
from django.db.models import Avg from rest_framework import serializers from . import models class GameSerializer(serializers.ModelSerializer): average_score = serializers.SerializerMethodField() def get_average_score(self, data): agg = models.Game.scores.all().aggregate(average_score=Avg('score')) return agg['average_score'] class Meta: fields = ('id', 'name', 'average_score') model = models.Game 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 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