对于Django来说还是比较新的我正在尝试实现我的第一个包，django-like，我一直在遇到错误。下面列出的文档和项目代码。非常感谢任何建议和见解。
注意：模型正被用作ModelForm
文档： https://crate.io/packages/django-likes/
错误：
Exception Type: KeyError
Exception Value: 'request'
Exception Location: /home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/context.py in __getitem__, line 57
Python Executable: /usr/local/bin/python
settings.py：
TEMPLATE_CONTEXT_PROCESSORS =(
'django.contrib.auth.context_processors.auth',
'django.core.context_processors.debug',
'django.core.context_processors.i18n',
'django.core.context_processors.media',
'django.core.context_processors.static',
'django.core.context_processors.tz',
'django.contrib.messages.context_processors.messages',
'django.core.context_processors.request',
)
MIDDLEWARE_CLASSES = (
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'secretballot.middleware.SecretBallotIpMiddleware',
'secretballot.middleware.SecretBallotUserIpUseragentMiddleware',
'likes.middleware.SecretBallotUserIpUseragentMiddleware',
)
INSTALLED_APPS = (
...
'secretballot',
'likes',
)
models.py：
from django.db import models
import secretballot
...
class Letter(models.Model):
...
def __unicode__(self):
return self.name
secretballot.enable_voting_on(Letter)
views.py：
def submission(request, pk):
submission = get_object_or_404(Letter, pk=int(pk))
pk = int(pk)
return render_to_response('post.html',
{'submission':submission},
context_instance=RequestContext(request))
post.html：
{% load likes_inclusion_tags %}
<some HTML>
{% likes submission %}
<some HTML>
回溯
Environment:
Request Method: GET`
Django Version: 1.5
Python Version: 2.7.5
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.admin',
'django.contrib.admindocs',
'taggit',
'letter',
'south',
'django_social_share',
'secretballot',
'likes')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'secretballot.middleware.SecretBallotIpUseragentMiddleware',
'likes.middleware.SecretBallotUserIpUseragentMiddleware')
Template error:
In template /home/alxmrph/webapps/dearmusic/dearmusic/letter/templates/post.html, error at line 15
request
5 : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
6 : <html>
7 : <head>
8 : <link href="/static/css/letter.css" rel="stylesheet" type="text/css">
9 : <link href='http://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800' rel='stylesheet' type='text/css'>
10 :
11 : </head>
12 :
13 : <body>
14 : <title class="title">Music Morphs - The Story of {{ submission.name }}: {{ submission.letter_summary }}</title>
15 : {% likes submission %}
16 : <header class="header">
17 : <div class="wrapper_header">
18 : <div class="title">
19 : <img src="/static/images/logo.png">
20 : </div>
21 : <nav><ul>
22 : <li><a href="#">Write Your Story</a></li>
23 : </ul></nav>
24 : </div>
25 : </header>
Traceback:
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/core/handlers/base.py" in get_response
115. response = callback(request, *callback_args, **callback_kwargs)
File "/home/alxmrph/webapps/dearmusic/dearmusic/letter/views.py" in submission
13. return render_to_response('post.html',
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/shortcuts/__init__.py" in render_to_response
29. return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/loader.py" in render_to_string
172. return t.render(Context(dictionary))
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/base.py" in render
140. return self._render(context)
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/base.py" in _render
134. return self.nodelist.render(context)
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/base.py" in render
830. bit = self.render_node(node, context)
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/debug.py" in render_node
74. return node.render(context)
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/base.py" in render
1185. _dict = func(*resolved_args, **resolved_kwargs)
File "/home/alxmrph/lib/python2.7/django_likes-0.0.11-py2.7.egg/likes/templatetags/likes_inclusion_tags.py" in likes
14. request = context['request']
File "/home/alxmrph/webapps/dearmusic/lib/python2.7/django/template/context.py" in __getitem__
57. raise KeyError(key)
Exception Type: KeyError at /letter/testing/15/what/
Exception Value: 'request'`
答案 0 :(得分：1)
您似乎在Django 1.5上运行django-likes，takes_context has changed
inclusion_tag参数的使用
请注意，当您使用takes_context = True时，则无需执行此操作 将参数传递给模板标记。它会自动获得访问权限 背景。
likes模板代码is
@register.inclusion_tag('likes/inclusion_tags/likes_extender.html', takes_context=True)
def likes(context, obj, template=None):
if template is None:
template = 'likes/inclusion_tags/likes.html'
request = context['request']
import_js = False
if not hasattr(request, '_django_likes_js_imported'):
setattr(request, '_django_likes_js_imported', 1)
import_js = True
context.update({
'template': template,
'content_obj': obj,
'likes_enabled': likes_enabled(obj, request),
'can_vote': can_vote(obj, request.user, request),
'content_type': "-".join((obj._meta.app_label, obj._meta.module_name)),
'import_js': import_js
})
return context
最简单的解决方案是降级Django。如果你想继续使用Django 1.5，你必须修改
def likes(context, obj, template=None):
to and lern it to get obj from context
def likes(context):
obj = context['likes_object']
...
在模板中，您可以使用with代码
{% with likes_object = submission %}
{% likes %}
{% endwith %}