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from django import forms # 导入Django表单基础模块
from django.forms import ModelForm # 导入模型表单类，用于基于模型创建表单
from .models import Comment # 从当前应用导入Comment模型
class CommentForm(ModelForm): # 定义评论表单类，继承自ModelForm
# 定义父评论ID字段，用于处理评论回复功能
# 使用HiddenInput小部件（前端隐藏），非必填（顶级评论不需要父评论ID）
parent_comment_id = forms.IntegerField(
widget=forms.HiddenInput, required=False)
class Meta: # 元数据配置
model = Comment # 指定表单关联的模型为Comment
fields = ['body'] # 表单包含的字段，仅包含评论内容字段body
