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Question.objects.annotate(choice_count=Count('choice')) |
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Choice.objects.count() |
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Question.objects.count() |
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class Question(models.Model): | |
question_text = models.CharField(max_length=200) | |
def __str__(self): | |
return self.question_text | |
class Choice(models.Model): | |
question = models.ForeignKey(Question, on_delete=models.CASCADE) | |
choice_text = models.CharField(max_length=200) |
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class UserSerializer(serializers.ModelSerializer): | |
def validate_password(self, value): | |
if value.isalnum(): | |
raise serializers.ValidationError('password must have atleast one special character.') | |
return value | |
def validate(self, data): | |
if data['first_name'] == data['last_name']: | |
raise serializers.ValidationError("first_name and last_name shouldn't be same.") |
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def create(self, validated_data): | |
return User.objects.create_superuser(**validated_data) |
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def to_internal_value(self, value): | |
value['date_joined'] = parser.parse(value['date_joined']) | |
return super().to_internal_value(value) |
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class UserSerializer(serializers.ModelSerializer): | |
def validate_password(self, value): | |
if value.isalnum(): | |
raise serializers.ValidationError('password must have atleast one special character.') | |
return value | |
def validate(self, data): | |
if data['first_name'] == data['last_name']: | |
raise serializers.ValidationError("first_name and last_name shouldn't be same.") |
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def to_internal_value(self, data): | |
user_data = data['user'] | |
return super().to_internal_value(user_data) |
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class UserSerializer(serializers.ModelSerializer): | |
def validate_password(self, value): | |
if value.isalnum(): | |
raise serializers.ValidationError('password must have atleast one special character.') | |
return value | |
def validate(self, data): | |
if data['first_name'] == data['last_name']: | |
raise serializers.ValidationError("first_name and last_name shouldn't be same.") |