Django Paginator 引发 TypeError
我正在尝试使用 django 分页模块，包括标准发行版 1.3 中的模块。
当尝试加载当前由分页控制的页面时，如果我不在 uri 上包含 ?page= ，则会抛出 TypeError。我以前从未出现过这种情况，并且看不出发生这种情况的任何原因。
这是我当前的观点：
paginator = Paginator(mails_list, 25) # Shows 25 mails per page
page = request.GET.get('page')
try:
mails = paginator.page(page)
except PageNotAnInteger:
# If page is not an integer, deliver the first page.
mails = paginator.page(1)
except EmptyPage:
# If page is out of range (e.g. 9999), deliver last page of results
mails = paginator.page(paginator.num_pages)
TypeError:
int() argument must be a string or a number, not 'NoneType'
The error is displayed from the line 3 of the 上述代码：
mails = paginator.page(page)
有人之前目睹过此错误和/或知道如何纠正它吗？
I'm trying to use the django pagination module including in the standard distribution version 1.3.
When attempting to load a page that is currently controlled by pagination, if I do not include ?page= on the uri, it throws a TypeError. I've never had this situation arise before, and do not see any reason for it occurring.
Here's my current view:
paginator = Paginator(mails_list, 25) # Shows 25 mails per page
page = request.GET.get('page')
try:
mails = paginator.page(page)
except PageNotAnInteger:
# If page is not an integer, deliver the first page.
mails = paginator.page(1)
except EmptyPage:
# If page is out of range (e.g. 9999), deliver last page of results
mails = paginator.page(paginator.num_pages)
TypeError:
int() argument must be a string or a number, not 'NoneType'
The error is being presented from line 3 of the above code:
mails = paginator.page(page)
Anyone witnessed this error before and/or know how to correct it?
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尝试更改此行：
对此：
问题是您获得的参数不存在。使用
[]建立索引会导致KeyError，但如果get方法不存在，则返回None。分页器正在调用int(None)，但失败。get方法的第二个参数是键不存在时默认返回的参数，而不是None。我传递了'1'，int不应失败。Try changing this line:
To this:
The problem is you're getting a parameter that doesn't exist. Indexing using
[]would result in aKeyError, but thegetmethod returnsNoneif it doesn't exist. The paginator is callingint(None), which fails.The second parameter to the
getmethod is a default to return if the key doesn't exist rather thanNone. I passed'1'whichintshould not fail on.您必须将 string 转换为 int
或者
你可以做到。两人都跑。
you must convert string to int
or
you can do it. Both of them runs.