234 lines
9.3 KiB
Python
234 lines
9.3 KiB
Python
from django.contrib import admin
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from django.contrib.admin import AdminSite
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from .models import Website, Article
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# 添加actions相关的导入
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from django.contrib import messages
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from django.http import HttpResponseRedirect
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# 添加导出功能所需导入
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import csv
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from django.http import HttpResponse
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import json
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# 创建自定义管理站点
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class NewsCnAdminSite(AdminSite):
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site_header = "新华网管理后台"
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site_title = "新华网管理"
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index_title = "新华网内容管理"
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class DongfangyancaoAdminSite(AdminSite):
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site_header = "东方烟草报管理后台"
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site_title = "东方烟草报管理"
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index_title = "东方烟草报内容管理"
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# 实例化管理站点
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news_cn_admin = NewsCnAdminSite(name='news_cn_admin')
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dongfangyancao_admin = DongfangyancaoAdminSite(name='dongfangyancao_admin')
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@admin.register(Website)
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class WebsiteAdmin(admin.ModelAdmin):
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list_display = ('name', 'base_url', 'enabled')
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# 为ArticleAdmin添加自定义动作
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@admin.register(Article)
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class ArticleAdmin(admin.ModelAdmin):
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list_display = ('title', 'website', 'pub_date')
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search_fields = ('title', 'content')
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# 添加动作选项
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actions = ['delete_selected_articles', 'delete_dongfangyancao_articles', 'export_as_csv', 'export_as_json']
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def delete_dongfangyancao_articles(self, request, queryset):
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"""一键删除东方烟草报的所有文章"""
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# 获取东方烟草报网站对象
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try:
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dongfangyancao_website = Website.objects.get(name='东方烟草报')
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# 删除所有东方烟草报的文章
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deleted_count = Article.objects.filter(website=dongfangyancao_website).delete()[0]
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self.message_user(request, f"成功删除 {deleted_count} 篇东方烟草报文章", messages.SUCCESS)
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except Website.DoesNotExist:
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self.message_user(request, "未找到东方烟草报网站配置", messages.ERROR)
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# 设置动作的显示名称
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delete_dongfangyancao_articles.short_description = "删除所有东方烟草报文章"
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def export_as_csv(self, request, queryset):
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"""导出选中的文章为CSV格式"""
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meta = self.model._meta
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field_names = [field.name for field in meta.fields]
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response = HttpResponse(content_type='text/csv')
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response['Content-Disposition'] = 'attachment; filename={}.csv'.format(meta)
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writer = csv.writer(response)
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writer.writerow(field_names)
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for obj in queryset:
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row = [getattr(obj, field)() if callable(getattr(obj, field)) else getattr(obj, field) for field in field_names]
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writer.writerow(row)
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return response
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export_as_csv.short_description = "导出选中文章为CSV格式"
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def export_as_json(self, request, queryset):
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"""导出选中的文章为JSON格式"""
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response = HttpResponse(content_type='application/json')
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response['Content-Disposition'] = 'attachment; filename=articles.json'
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# 构造要导出的数据
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articles_data = []
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for article in queryset:
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articles_data.append({
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'id': article.id,
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'title': article.title,
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'website': article.website.name,
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'url': article.url,
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'pub_date': article.pub_date.strftime('%Y-%m-%d %H:%M:%S') if article.pub_date else None,
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'content': article.content,
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'created_at': article.created_at.strftime('%Y-%m-%d %H:%M:%S'),
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'media_files': article.media_files
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})
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# 写入JSON数据
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response.write(json.dumps(articles_data, ensure_ascii=False, indent=2))
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return response
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export_as_json.short_description = "导出选中文章为JSON格式"
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# 为不同网站创建专门的文章管理类
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class NewsCnArticleAdmin(admin.ModelAdmin):
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list_display = ('title', 'pub_date')
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search_fields = ('title', 'content')
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list_filter = ('pub_date',)
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actions = ['export_as_csv', 'export_as_json']
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def get_queryset(self, request):
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qs = super().get_queryset(request)
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# 只显示新华网的文章
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return qs.filter(website__name='www.news.cn')
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def export_as_csv(self, request, queryset):
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"""导出选中的文章为CSV格式"""
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meta = self.model._meta
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field_names = [field.name for field in meta.fields if field.name != 'content'] # 排除content字段以减小CSV大小
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response = HttpResponse(content_type='text/csv')
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response['Content-Disposition'] = 'attachment; filename=news_cn_articles.csv'
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writer = csv.writer(response)
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writer.writerow(field_names)
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for obj in queryset:
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row = []
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for field in field_names:
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value = getattr(obj, field)
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if callable(value):
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value = value()
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if field == 'website':
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value = value.name
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row.append(value)
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writer.writerow(row)
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return response
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export_as_csv.short_description = "导出选中文章为CSV格式"
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def export_as_json(self, request, queryset):
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"""导出选中的文章为JSON格式"""
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response = HttpResponse(content_type='application/json')
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response['Content-Disposition'] = 'attachment; filename=news_cn_articles.json'
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# 构造要导出的数据
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articles_data = []
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for article in queryset:
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articles_data.append({
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'id': article.id,
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'title': article.title,
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'website': article.website.name,
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'url': article.url,
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'pub_date': article.pub_date.strftime('%Y-%m-%d %H:%M:%S') if article.pub_date else None,
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'content': article.content,
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'created_at': article.created_at.strftime('%Y-%m-%d %H:%M:%S'),
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'media_files': article.media_files
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})
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# 写入JSON数据
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response.write(json.dumps(articles_data, ensure_ascii=False, indent=2))
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return response
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export_as_json.short_description = "导出选中文章为JSON格式"
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class DongfangyancaoArticleAdmin(admin.ModelAdmin):
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list_display = ('title', 'pub_date')
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search_fields = ('title', 'content')
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list_filter = ('pub_date',)
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# 添加动作选项
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actions = ['delete_selected_articles', 'delete_all_articles', 'export_as_csv', 'export_as_json']
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def get_queryset(self, request):
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qs = super().get_queryset(request)
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# 只显示东方烟草报的文章
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return qs.filter(website__name='东方烟草报')
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def delete_all_articles(self, request, queryset):
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"""删除当前筛选的所有文章（东方烟草报的所有文章）"""
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# 删除所有东方烟草报的文章
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deleted_count = self.get_queryset(request).delete()[0]
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self.message_user(request, f"成功删除 {deleted_count} 篇文章", messages.SUCCESS)
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# 设置动作的显示名称
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delete_all_articles.short_description = "删除所有当前筛选的文章"
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def export_as_csv(self, request, queryset):
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"""导出选中的文章为CSV格式"""
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meta = self.model._meta
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field_names = [field.name for field in meta.fields if field.name != 'content'] # 排除content字段以减小CSV大小
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response = HttpResponse(content_type='text/csv')
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response['Content-Disposition'] = 'attachment; filename=dongfangyancao_articles.csv'
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writer = csv.writer(response)
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writer.writerow(field_names)
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for obj in queryset:
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row = []
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for field in field_names:
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value = getattr(obj, field)
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if callable(value):
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value = value()
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if field == 'website':
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value = value.name
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row.append(value)
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writer.writerow(row)
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return response
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export_as_csv.short_description = "导出选中文章为CSV格式"
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def export_as_json(self, request, queryset):
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"""导出选中的文章为JSON格式"""
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response = HttpResponse(content_type='application/json')
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response['Content-Disposition'] = 'attachment; filename=dongfangyancao_articles.json'
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# 构造要导出的数据
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articles_data = []
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for article in queryset:
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articles_data.append({
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'id': article.id,
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'title': article.title,
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'website': article.website.name,
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'url': article.url,
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'pub_date': article.pub_date.strftime('%Y-%m-%d %H:%M:%S') if article.pub_date else None,
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'content': article.content,
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'created_at': article.created_at.strftime('%Y-%m-%d %H:%M:%S'),
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'media_files': article.media_files
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})
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# 写入JSON数据
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response.write(json.dumps(articles_data, ensure_ascii=False, indent=2))
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return response
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export_as_json.short_description = "导出选中文章为JSON格式"
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# 在各自的管理站点中注册模型
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news_cn_admin.register(Website, WebsiteAdmin)
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news_cn_admin.register(Article, NewsCnArticleAdmin)
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dongfangyancao_admin.register(Website, WebsiteAdmin)
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dongfangyancao_admin.register(Article, DongfangyancaoArticleAdmin) |