我正在使用django-avatar而我的模板有：
{% load i18n avatar_tags %}
{% render_avatar avatar 100 %}
我收到此错误：
Environment:
Request Method: GET
Request URL: http://test.me/profile/myuser
Django Version: 1.3
Python Version: 2.6.6
Installed Applications:
['django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.admin',
'test',
'avatar']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.middleware.csrf.CsrfResponseMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')
Template error:
In template /srv/www/test.me/localhost/test/templates/profile.html, error at line 23
Caught VariableDoesNotExist while rendering: Failed lookup for key [avatar] in u'[{}, {\'csrf_token\': <django.utils.functional.__proxy__ object at 0xb93445ac>}, {\'perms\': <django.utils.functional.__proxy__ object at 0xb9344cec>, \'messages\': <django.contrib.messages.storage.user_messages.LegacyFallbackStorage object at 0xb936258c>, \'user\': <django.utils.functional.SimpleLazyObject object at 0xb9344bcc>}, {}, {\'LANGUAGES\': ((\'ar\', \'Arabic\'), (\'az\', \'Azerbaijani\'), (\'bg\', \'Bulgarian\'), (\'bn\', \'Bengali\'), (\'bs\', \'Bosnian\'), (\'ca\', \'Catalan\'), (\'cs\', \'Czech\'), (\'cy\', \'Welsh\'), (\'da\', \'Danish\'), (\'de\', \'German\'), (\'el\', \'Greek\'), (\'en\', \'English\'), (\'en-gb\', \'British English\'), (\'es\', \'Spanish\'), (\'es-ar\', \'Argentinian Spanish\'), (\'es-mx\', \'Mexican Spanish\'), (\'es-ni\', \'Nicaraguan Spanish\'), (\'et\', \'Estonian\'), (\'eu\', \'Basque\'), (\'fa\', \'Persian\'), (\'fi\', \'Finnish\'), (\'fr\', \'French\'), (\'fy-nl\', \'Frisian\'), (\'ga\', \'Irish\'), (\'gl\', \'Galician\'), (\'he\', \'Hebrew\'), (\'hi\', \'Hindi\'), (\'hr\', \'Croatian\'), (\'hu\', \'Hungarian\'), (\'id\', \'Indonesian\'), (\'is\', \'Icelandic\'), (\'it\', \'Italian\'), (\'ja\', \'Japanese\'), (\'ka\', \'Georgian\'), (\'km\', \'Khmer\'), (\'kn\', \'Kannada\'), (\'ko\', \'Korean\'), (\'lt\', \'Lithuanian\'), (\'lv\', \'Latvian\'), (\'mk\', \'Macedonian\'), (\'ml\', \'Malayalam\'), (\'mn\', \'Mongolian\'), (\'nl\', \'Dutch\'), (\'no\', \'Norwegian\'), (\'nb\', \'Norwegian Bokmal\'), (\'nn\', \'Norwegian Nynorsk\'), (\'pa\', \'Punjabi\'), (\'pl\', \'Polish\'), (\'pt\', \'Portuguese\'), (\'pt-br\', \'Brazilian Portuguese\'), (\'ro\', \'Romanian\'), (\'ru\', \'Russian\'), (\'sk\', \'Slovak\'), (\'sl\', \'Slovenian\'), (\'sq\', \'Albanian\'), (\'sr\', \'Serbian\'), (\'sr-latn\', \'Serbian Latin\'), (\'sv\', \'Swedish\'), (\'ta\', \'Tamil\'), (\'te\', \'Telugu\'), (\'th\', \'Thai\'), (\'tr\', \'Turkish\'), (\'uk\', \'Ukrainian\'), (\'ur\', \'Urdu\'), (\'vi\', \'Vietnamese\'), (\'zh-cn\', \'Simplified Chinese\'), (\'zh-tw\', \'Traditional Chinese\')), \'LANGUAGE_BIDI\': False, \'LANGUAGE_CODE\': \'en-us\'}, {\'MEDIA_URL\': \'http://test.me/media/\'}, {\'STATIC_URL\': \'/static/\'}, {\'messages\': <django.contrib.messages.storage.user_messages.LegacyFallbackStorage object at 0xb936258c>}, {\'messages\': [], \'user\': <User: myuser>, \'form\': <localhost.test.forms.messagesForm object at 0xb936270c>, \'unread_messages\': []}, {\'block\': <Block Node: content. Contents: [<Text Node: \'\n<center>\n \'>, <If node>, <Text Node: \'\n \n<h2>Describe \'>, <Variable Node: user.username>, <Text Node: \' in three messages!</h2>\n\n<d\'>, <django.template.base.SimpleNode object at 0xb937772c>, <Text Node: \'\n</div>\n\n<form id="messages_\'>, <Variable Node: user.id>, <Text Node: \'" id="id_user" /></li> \n \'>, <If node>, <Text Node: \'\n<input type="submit" val\'>, <If node>, <Text Node: \'\n\n\'>]>}]'
13 : <ul class="messages" style="display: none">
14 : {% for message in messages %}
15 : <li{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</li>
16 : {% endfor %}
17 : </ul>
18 : {% endif %}
19 :
20 : <h2>Describe {{ user.username }} in three messages!</h2>
21 :
22 : <div id="avatar_box">
23 : {% render_avatar avatar 100 %}
24 : </div>
25 :
26 : <form id="messages_form" action="" method="post">
27 : <ul>
28 : <li><input type="text" name="message_1" id="id_message_1" /></li>
29 : <li><input type="text" name="message_2" id="id_message_2" /></li>
30 : <li><input type="text" name="message_3" id="id_message_3" />
31 : <input type="hidden" name="user" value="{{user.id}}" id="id_user" /></li>
32 : </ul>
33 : {% if form.errors %}
Traceback:
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File "/srv/www/test.me/localhost/test/views.py" in profile
102. 'unread_messages': unread_messages})
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/shortcuts/__init__.py" in render
44. return HttpResponse(loader.render_to_string(*args, **kwargs),
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/loader.py" in render_to_string
188. return t.render(context_instance)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in render
123. return self._render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in _render
117. return self.nodelist.render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/debug.py" in render_node
73. result = node.render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/loader_tags.py" in render
127. return compiled_parent._render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in _render
117. return self.nodelist.render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/debug.py" in render_node
73. result = node.render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/loader_tags.py" in render
64. result = block.nodelist.render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/debug.py" in render_node
73. result = node.render(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in render
880. resolved_vars = [var.resolve(context) for var in self.vars_to_resolve]
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in resolve
653. value = self._resolve_lookup(context)
File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/template/base.py" in _resolve_lookup
692. raise VariableDoesNotExist("Failed lookup for key [%s] in %r", (bit, current)) # missing attribute
Exception Type: TemplateSyntaxError at /profile/myuser
Exception Value: Caught VariableDoesNotExist while rendering: Failed lookup for key [avatar] in u'[{}, {\'csrf_token\': <django.utils.functional.__proxy__ object at 0xb93445ac>}, {\'perms\': <django.utils.functional.__proxy__ object at 0xb9344cec>, \'messages\': <django.contrib.messages.storage.user_messages.LegacyFallbackStorage object at 0xb936258c>, \'user\': <django.utils.functional.SimpleLazyObject object at 0xb9344bcc>}, {}, {\'LANGUAGES\': ((\'ar\', \'Arabic\'), (\'az\', \'Azerbaijani\'), (\'bg\', \'Bulgarian\'), (\'bn\', \'Bengali\'), (\'bs\', \'Bosnian\'), (\'ca\', \'Catalan\'), (\'cs\', \'Czech\'), (\'cy\', \'Welsh\'), (\'da\', \'Danish\'), (\'de\', \'German\'), (\'el\', \'Greek\'), (\'en\', \'English\'), (\'en-gb\', \'British English\'), (\'es\', \'Spanish\'), (\'es-ar\', \'Argentinian Spanish\'), (\'es-mx\', \'Mexican Spanish\'), (\'es-ni\', \'Nicaraguan Spanish\'), (\'et\', \'Estonian\'), (\'eu\', \'Basque\'), (\'fa\', \'Persian\'), (\'fi\', \'Finnish\'), (\'fr\', \'French\'), (\'fy-nl\', \'Frisian\'), (\'ga\', \'Irish\'), (\'gl\', \'Galician\'), (\'he\', \'Hebrew\'), (\'hi\', \'Hindi\'), (\'hr\', \'Croatian\'), (\'hu\', \'Hungarian\'), (\'id\', \'Indonesian\'), (\'is\', \'Icelandic\'), (\'it\', \'Italian\'), (\'ja\', \'Japanese\'), (\'ka\', \'Georgian\'), (\'km\', \'Khmer\'), (\'kn\', \'Kannada\'), (\'ko\', \'Korean\'), (\'lt\', \'Lithuanian\'), (\'lv\', \'Latvian\'), (\'mk\', \'Macedonian\'), (\'ml\', \'Malayalam\'), (\'mn\', \'Mongolian\'), (\'nl\', \'Dutch\'), (\'no\', \'Norwegian\'), (\'nb\', \'Norwegian Bokmal\'), (\'nn\', \'Norwegian Nynorsk\'), (\'pa\', \'Punjabi\'), (\'pl\', \'Polish\'), (\'pt\', \'Portuguese\'), (\'pt-br\', \'Brazilian Portuguese\'), (\'ro\', \'Romanian\'), (\'ru\', \'Russian\'), (\'sk\', \'Slovak\'), (\'sl\', \'Slovenian\'), (\'sq\', \'Albanian\'), (\'sr\', \'Serbian\'), (\'sr-latn\', \'Serbian Latin\'), (\'sv\', \'Swedish\'), (\'ta\', \'Tamil\'), (\'te\', \'Telugu\'), (\'th\', \'Thai\'), (\'tr\', \'Turkish\'), (\'uk\', \'Ukrainian\'), (\'ur\', \'Urdu\'), (\'vi\', \'Vietnamese\'), (\'zh-cn\', \'Simplified Chinese\'), (\'zh-tw\', \'Traditional Chinese\')), \'LANGUAGE_BIDI\': False, \'LANGUAGE_CODE\': \'en-us\'}, {\'MEDIA_URL\': \'http://test.me/media/\'}, {\'STATIC_URL\': \'/static/\'}, {\'messages\': <django.contrib.messages.storage.user_messages.LegacyFallbackStorage object at 0xb936258c>}, {\'messages\': [], \'user\': <User: myuser>, \'form\': <localhost.test.forms.messagesForm object at 0xb936270c>, \'unread_messages\': []}, {\'block\': <Block Node: content. Contents: [<Text Node: \'\n<center>\n \'>, <If node>, <Text Node: \'\n \n<h2>Describe \'>, <Variable Node: user.username>, <Text Node: \' in three messages!</h2>\n\n<d\'>, <django.template.base.SimpleNode object at 0xb937772c>, <Text Node: \'\n</div>\n\n<form id="messages_\'>, <Variable Node: user.id>, <Text Node: \'" id="id_user" /></li> \n \'>, <If node>, <Text Node: \'\n<input type="submit" val\'>, <If node>, <Text Node: \'\n\n\'>]>}]'
这很奇怪，因为在另一个模板中它可以正常工作。
你能帮帮我吗？感谢。答案 0 :(得分：1)
{% render_avatar avatar [size in pixels] %}
给定实际的avatar.models.Avatar对象实例，呈现HTML img标记以表示请求大小的头像。
因此，在您看来，您需要获取与用户关联的头像：
avatar = Avatar.objects.get(user=request.user）
然后将该变量传递给模板。