class ReplySerializer(serializers.ModelSerializer):
user = PostingProfileSerializer(source='user.userprofile', read_only=True)
class Meta:
model = Reply
fields = ['id', 'reply_text', 'time_stamp', 'user', 'like_count']
read_only_fields = ('id', 'time_stamp', 'user', 'like_count')
class FollowersListSerializer(serializers.ModelSerializer):
user = PostingProfileSerializer(source='follower.userprofile',
read_only=True)
class Meta:
model = Follow
fields = ['id', 'follower', 'user']
read_only_fields = ('id', 'follower', 'user')
class PostSerializer(serializers.ModelSerializer):
images = PhotoSerializer(many=True, read_only=True, source='photo_posts')
tags = serializers.ListField(child=serializers.CharField(max_length=12),
write_only=True,
required=False)
_tags = TagShowSerializer(many=True, read_only=True, source='tagged_posts')
user = PostingProfileSerializer(source='user.userprofile', read_only=True)
class Meta:
model = Post
fields = [
'id', 'post_text', 'time_stamp', 'images', 'like_count', 'tags',
'_tags', 'user'
]
read_only_fields = ('id', 'time_stamp', 'images', 'like_count', 'user')
def create(self, validated_data):
if validated_data.get('tags'):
obj_id_list = []
for name in validated_data['tags']:
obj, _ = HashTag.objects.update_or_create(name=name)
obj_id_list.append(obj.id)
validated_data.pop('tags')
post = Post.objects.create(**validated_data)
data = {'post': post.id, 'tag': {*obj_id_list}}
# validate unique-together
serializer = TagPostListSerializer(data=data)
serializer.is_valid(raise_exception=True)
for obj_id in obj_id_list:
tag = HashTag.objects.get(id=obj_id)
TagPostList.objects.create(post=post, tag=tag)
else:
post = Post.objects.create(**validated_data)
return post
def update(self, instance, validated_data):
if validated_data.get('tags'):
obj_id_list = []
for name in validated_data['tags']:
obj, _ = HashTag.objects.update_or_create(name=name)
obj_id_list.append(obj.id)
validated_data.pop('tags')
for obj_id in obj_id_list:
tag = HashTag.objects.get(id=obj_id)
TagPostList.objects.get_or_create(post=instance, tag=tag)
for attr, value in validated_data.items():
setattr(instance, attr, value)
instance.save()
return instance
class StorySerializer(serializers.ModelSerializer):
user = PostingProfileSerializer(source='user.userprofile', read_only=True)
class Meta:
model = Story
fields = [
'id', 'story_text', 'time_stamp', 'story_image', 'image_name',
'user'
]
read_only_fields = ('id', 'time_stamp', 'image_name', 'user')
class PostLikeSerializer(serializers.ModelSerializer):
user = PostingProfileSerializer(source='user.userprofile', read_only=True)
class Meta:
model = PostLike
fields = ['id', 'user', 'post']
read_only_fields = ('id', 'user', 'post')
def validate(self, attrs):
if PostLike.objects.filter(user=self.context['request'].user,
post=self.context['view'].kwargs['post_pk']).exists():
raise serializers.ValidationError('The fields `user`, `reply` must make a unique set.',
code='unique')
return super().validate(attrs)
class FollowSerializer(serializers.ModelSerializer):
user = PostingProfileSerializer(source='follower.userprofile',
read_only=True)
class Meta:
model = Follow
fields = ['id', 'follower', 'following', 'user']
read_only_fields = ('id', 'follower', 'following', 'user')
def validate(self, attrs):
get_object_or_404(User, id=self.context['view'].kwargs.get('user_pk'))
if Follow.objects.filter(
follower=self.context['request'].user,
following=self.context['view'].kwargs['user_pk']).exists():
raise serializers.ValidationError(
'The fields `follower`, `following` must make a unique set.')
elif str(self.context['request'].user.id
) == self.context['view'].kwargs['user_pk']:
raise serializers.ValidationError('Can not following yourself.')
return super().validate(attrs)