113 lines
3.7 KiB
Python
113 lines
3.7 KiB
Python
from django.core.paginator import Paginator
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from django.http import JsonResponse
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from django.core.exceptions import ValidationError
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from django.utils.html import escape
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from .models import Article
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from django.shortcuts import get_object_or_404
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from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
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# 文章列表页视图，带分页和请求频率限制
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def article_list(request):
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# 获取分页参数
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page = request.GET.get('page', 1) # 当前页数，默认为第一页
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limit = request.GET.get('limit', 10) # 每页文章数，默认为10
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# 获取所有文章，并按发布时间倒序排序
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articles = Article.objects.all().order_by('-published_at')
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# 使用 Paginator 进行分页
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paginator = Paginator(articles, limit)
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try:
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current_page = paginator.page(page) # 获取当前页的数据
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except PageNotAnInteger:
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current_page = paginator.page(1) # 如果请求的页数不存在，默认返回第一页
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except EmptyPage:
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# 如果页码超出范围，返回空列表
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return JsonResponse({'code': 200, 'message': '没有更多数据', 'data': {}})
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# 将文章列表转换为字典列表
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articles_list = list(current_page.object_list.values('id', 'chinese_title', 'english_title', 'published_at', 'status'))
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# 格式化文章的发布时间
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for article in articles_list:
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article['published_at'] = article['published_at'].strftime('%Y-%m-%d %H:%M:%S') if article['published_at'] else '未发布'
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# 返回 JSON 数据，适配前端使用
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data = {
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"code": 200,
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"msg": "成功",
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"count": paginator.count, # 文章总数
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"data": articles_list
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}
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return JsonResponse(data)
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def article_detail(request, pk, lang):
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try:
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# 检查是否传入了危险参数 (如防止SQL注入等)
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pk = escape(pk) # 对传入的主键进行转义，避免潜在的注入风险
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lang = escape(lang) # 对语言参数进行转义
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# 检查参数是否有效
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if not pk or not lang:
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raise ValidationError('参数不能为空')
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# 检查语言是否有效
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if lang not in ['zh', 'en']:
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return JsonResponse({
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"code": 400,
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"msg": "无效的语言参数",
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"data": {}
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})
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# 获取指定的文章
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article = get_object_or_404(Article, pk=pk)
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# 根据语言参数返回不同语言的文章内容
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if lang == 'en':
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title = article.english_title
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keywords = article.english_keywords
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content = article.english_content
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else:
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title = article.chinese_title
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keywords = article.chinese_keywords
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content = article.chinese_content
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# 构造响应数据
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data = {
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"code": 200,
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"msg": "成功",
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"data": {
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'id': article.id,
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'title': title,
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'keywords': keywords,
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'content': content,
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'published_at': article.published_at.strftime('%Y-%m-%d %H:%M:%S') if article.published_at else '未发布',
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'status': article.status
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}
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}
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return JsonResponse(data)
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except ValidationError as ve:
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return JsonResponse({
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"code": 400,
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"msg": str(ve),
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"data": {}
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})
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except Article.DoesNotExist:
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return JsonResponse({
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"code": 404,
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"msg": "未找到对应的文章",
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"data": {}
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})
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except Exception as e:
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return JsonResponse({
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"code": 500,
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"msg": "服务器内部错误",
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"data": {"error": str(e)}
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}) |