django对象标记过滤器
我正在调用html页面上的post.objects.all对象。在最后一篇文章的同一页上。我做了一个过滤器,但我得到一个错误。调用我想做的最后3个帖子 我无法键入.objects.order_by(),因为它可能是一个对象django对象标记过滤器,django,object,filter,Django,Object,Filter,我正在调用html页面上的post.objects.all对象。在最后一篇文章的同一页上。我做了一个过滤器,但我得到一个错误。调用我想做的最后3个帖子 我无法键入.objects.order_by(),因为它可能是一个对象 views.py : def post_index(request): post_list = Post.objects.all() category = Category.objects.all() query = request.GE
views.py :
def post_index(request):
post_list = Post.objects.all()
category = Category.objects.all()
query = request.GET.get('q')
if query:
post_list = post_list.filter(
Q(post_title__icontains=query) |
Q(post_content__icontains=query) |
Q(post_date__date=query)
).distinct()
paginator = Paginator(post_list, 18) # Show 5 contacts per page
page = request.GET.get('page')
try:
posts = paginator.page(page)
except PageNotAnInteger:
# If page is not an integer, deliver first page.
posts = paginator.page(1)
except EmptyPage:
# If page is out of range (e.g. 9999), deliver last page of results.
posts = paginator.page(paginator.num_pages)
context = {
'posts': posts,
'category':category,
}
return render(request, "post/post-list.html", context)
html:
{%for post in posts|lasted %}
filter.py
@register.filter
def lasted(post):
return post.objects.order_by('post_date')[:3]
AttributeError at /post/index/
'Page' object has no attribute 'objects'
Request Method: GET
Request URL: http://127.0.0.1:8000/post/index/
Django Version: 2.2.7
Exception Type: AttributeError
Exception Value:
'Page' object has no attribute 'objects'
Exception Location: C:\Users\Barbaros\Desktop\All\env\lib\site-packages\django\template\defaultfilters.py in lasted, line 73
Python Executable: C:\Users\Barbaros\Desktop\All\env\Scripts\python.exe
Python Version: 3.7.4
Python Path:
['C:\\Users\\Barbaros\\Desktop\\All',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\Scripts\\python37.zip',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\DLLs',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\lib',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\Scripts',
'c:\\users\\barbaros\\appdata\\local\\programs\\python\\python37-32\\Lib',
'c:\\users\\barbaros\\appdata\\local\\programs\\python\\python37-32\\DLLs',
'C:\\Users\\Barbaros\\Desktop\\All\\env',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\lib\\site-packages']
Server time: Fri, 22 Nov 2019 20:36:41 +0000
我无法键入.objects.order_by(),因为它可能是一个对象
views.py :
def post_index(request):
post_list = Post.objects.all()
category = Category.objects.all()
query = request.GET.get('q')
if query:
post_list = post_list.filter(
Q(post_title__icontains=query) |
Q(post_content__icontains=query) |
Q(post_date__date=query)
).distinct()
paginator = Paginator(post_list, 18) # Show 5 contacts per page
page = request.GET.get('page')
try:
posts = paginator.page(page)
except PageNotAnInteger:
# If page is not an integer, deliver first page.
posts = paginator.page(1)
except EmptyPage:
# If page is out of range (e.g. 9999), deliver last page of results.
posts = paginator.page(paginator.num_pages)
context = {
'posts': posts,
'category':category,
}
return render(request, "post/post-list.html", context)
html:
{%for post in posts|lasted %}
filter.py
@register.filter
def lasted(post):
return post.objects.order_by('post_date')[:3]
AttributeError at /post/index/
'Page' object has no attribute 'objects'
Request Method: GET
Request URL: http://127.0.0.1:8000/post/index/
Django Version: 2.2.7
Exception Type: AttributeError
Exception Value:
'Page' object has no attribute 'objects'
Exception Location: C:\Users\Barbaros\Desktop\All\env\lib\site-packages\django\template\defaultfilters.py in lasted, line 73
Python Executable: C:\Users\Barbaros\Desktop\All\env\Scripts\python.exe
Python Version: 3.7.4
Python Path:
['C:\\Users\\Barbaros\\Desktop\\All',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\Scripts\\python37.zip',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\DLLs',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\lib',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\Scripts',
'c:\\users\\barbaros\\appdata\\local\\programs\\python\\python37-32\\Lib',
'c:\\users\\barbaros\\appdata\\local\\programs\\python\\python37-32\\DLLs',
'C:\\Users\\Barbaros\\Desktop\\All\\env',
'C:\\Users\\Barbaros\\Desktop\\All\\env\\lib\\site-packages']
Server time: Fri, 22 Nov 2019 20:36:41 +0000
我以为你在昨天的评论后更改了问题中的代码。现在,请尝试{%forpost in posts.object|list | last%}并按排序(或排序)和键参数(键是comparisison post_date的func)将其在过滤器中排序为列表。或者尝试传递到Paginator排序查询集Paginator(post_list.order_by(“…”),18),而不使用自定义过滤器,然后–ААаСаааа18小时您的views.py中已经有posts queryset。并且不需要在filter.py中调用
对象
。尝试返回post.order\u by('post\u date')[:3]不要尝试:“Page”对象没有属性“order\u by”,我以为你在yestarday评论后更改了问题中的代码。现在请尝试{%forpost in posts.object|list | last%}
,并按排序
(或排序
)和键参数(键是用于比较post_日期
的func)对其在过滤器中作为列表排序。或者尝试传递到Paginator排序查询集Paginator(post_list.order_by(“…”),18)
,而不使用自定义过滤器