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# Create your views here.
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from django.core.exceptions import ValidationError
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from django.http import HttpResponseRedirect
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from django.shortcuts import get_object_or_404
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from django.utils.decorators import method_decorator
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from django.views.decorators.csrf import csrf_protect
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from django.views.generic.edit import FormView
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from accounts.models import BlogUser
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from blog.models import Article
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from .forms import CommentForm
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from .models import Comment
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class CommentPostView(FormView):
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# jrx: 评论表单类
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form_class = CommentForm
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# jrx: 渲染的模板(文章详情页)
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template_name = 'blog/article_detail.html'
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# jrx: 启用CSRF保护
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@method_decorator(csrf_protect)
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def dispatch(self, *args, **kwargs):
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return super(CommentPostView, self).dispatch(*args, **kwargs)
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# jrx: 处理GET请求:重定向到文章详情页的评论区
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def get(self, request, *args, **kwargs):
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article_id = self.kwargs['article_id'] # jrx: 从URL获取文章ID
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article = get_object_or_404(Article, pk=article_id) # jrx: 获取文章对象,不存在则404
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url = article.get_absolute_url() # jrx: 获取文章详情页URL
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return HttpResponseRedirect(url + "#comments") # jrx: 重定向到评论区锚点
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# jrx: 表单验证失败时的处理
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def form_invalid(self, form):
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article_id = self.kwargs['article_id']
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article = get_object_or_404(Article, pk=article_id)
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# jrx: 重新渲染文章详情页,携带错误表单和文章数据
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return self.render_to_response({
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'form': form,
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'article': article
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})
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# jrx: 表单验证通过后的处理(核心逻辑)
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def form_valid(self, form):
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"""提交的数据验证合法后的逻辑"""
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user = self.request.user # jrx: 当前登录用户
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author = BlogUser.objects.get(pk=user.pk) # jrx: 获取用户详细信息
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article_id = self.kwargs['article_id'] # jrx: 文章ID
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article = get_object_or_404(Article, pk=article_id) # jrx: 获取文章对象
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# jrx: 检查文章是否允许评论
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if article.comment_status == 'c' or article.status == 'c':
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raise ValidationError("该文章评论已关闭.")
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# jrx: 不立即保存表单数据,先处理关联关系
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comment = form.save(False)
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comment.article = article # jrx: 关联评论到文章
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# jrx: 根据站点设置决定评论是否需要审核
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from djangoblog.utils import get_blog_setting
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settings = get_blog_setting()
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if not settings.comment_need_review:
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comment.is_enable = True # jrx: 无需审核则直接启用
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comment.author = author # jrx: 设置评论作者
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# jrx: 处理回复功能(如果存在父评论ID)
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if form.cleaned_data['parent_comment_id']:
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parent_comment = Comment.objects.get(
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pk=form.cleaned_data['parent_comment_id'])
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comment.parent_comment = parent_comment # jrx: 关联到父评论
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comment.save(True) # jrx: 保存评论到数据库
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# jrx: 重定向到文章详情页的当前评论位置
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return HttpResponseRedirect(
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"%s#div-comment-%d" %
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(article.get_absolute_url(), comment.pk)) |