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43 lines
1.7 KiB
43 lines
1.7 KiB
from rest_framework import serializers |
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from user_info.serializers import UserDescSerializer |
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from comment.models import Comment |
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class CommentChildrenSerializer(serializers.ModelSerializer): |
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url = serializers.HyperlinkedIdentityField(view_name='comment-detail') |
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author = UserDescSerializer(read_only=True) |
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class Meta: |
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model = Comment |
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exclude = [ # 不需要的字段 |
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'parent', |
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'article', |
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] |
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class CommentSerializer(serializers.ModelSerializer): |
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"""评论的序列化器""" |
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# HyperlinkedIdentityField用于自身 |
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url = serializers.HyperlinkedIdentityField(view_name='comment-detail') |
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author = UserDescSerializer(read_only=True) |
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# 设置为超链接，HyperlinkedRelatedField用于对外键关系 |
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article = serializers.HyperlinkedRelatedField(view_name='article-detail', read_only=True) |
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# 需要知道是哪篇文章的评论 |
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article_id = serializers.IntegerField(write_only=True, allow_null=False, required=True) |
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# parent为父评论 |
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parent = CommentChildrenSerializer(read_only=True) |
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# 本身是父评论则不需要该字段 |
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parent_id = serializers.IntegerField(write_only=True, allow_null=True, required=False) |
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class Meta: |
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model = Comment |
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fields = '__all__' |
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extra_kwargs = {'created': {'read_only': True}} |
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# 父评论只能在创建时被关联，后续不能更改 |
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def update(self, instance, validated_data): |
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validated_data.pop('parent_id', None) # 更新时忽略parent_id参数 |
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validated_data.pop('article_id', None) # 更新时忽略article_id参数 |
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return super(CommentSerializer, self).update(instance, validated_data) |
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