Django templatetag包含用户对象

Django templatetag User objects included

嘿，我现在一直在努力解决这个问题。我试图将我的用户对象传递给模板，以便我可以列出它们，或列出用户名。感谢我从这里得到的帮助到目前为止我有这个。

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from django.template import Library, Node, Template, VariableDoesNotExist, TemplateSyntaxError, \
Variable
from django.utils.translation import ugettext as _
from django.contrib.auth.models import User
from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
from django.db import models

register = Library()

class GetAllUsers(Node):
def __init__(self, varname):
# Save the variable that we will assigning the users to
self.varname = varname
def render(self, context):
# Save all the user objects to the variable and return the context to the template
context[self.varname] = User.objects.all()
return ''

@register.tag(name="get_all_users")
def get_all_users(parser, token):
# First break up the arguments that have been passed to the template tag
bits = token.contents.split()
if len(bits) != 3:
raise TemplateSyntaxError,"get_all_users tag takes exactly 2 arguments"
if bits[1] != 'as':
raise TemplateSyntaxError,"1st argument to get_all_users tag must be 'as'"
return GetAllUsers(bits)

#register.tag('get_all_users', get_all_users)

当我使用此代码时

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{% load getusers %}
{% get_all_users as allusers %}
{% for user in allusers %}
{{ user }}
{% endfor %}

在我的模板中，我在渲染时遇到了Caught TypeError：unhashable type：'list'。它特别是{％get_all_users as allusers％}导致它。我尝试了{％for user in get_all_users％}，它会通过但不会打印任何内容。

追溯

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Traceback:
File"/usr/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File"/usr/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
23. return view_func(request, *args, **kwargs)
File"/home/ajunkkil/Django/basedraft/messages/views.py" in compose
91. }, context_instance=RequestContext(request))
File"/usr/lib/python2.7/site-packages/django/shortcuts/__init__.py" in render_to_response
20. return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
File"/usr/lib/python2.7/site-packages/django/template/loader.py" in render_to_string
188. return t.render(context_instance)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in render
123. return self._render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in _render
117. return self.nodelist.render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File"/usr/lib/python2.7/site-packages/django/template/debug.py" in render_node
73. result = node.render(context)
File"/usr/lib/python2.7/site-packages/django/template/loader_tags.py" in render
127. return compiled_parent._render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in _render
117. return self.nodelist.render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File"/usr/lib/python2.7/site-packages/django/template/debug.py" in render_node
73. result = node.render(context)
File"/usr/lib/python2.7/site-packages/django/template/loader_tags.py" in render
127. return compiled_parent._render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in _render
117. return self.nodelist.render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File"/usr/lib/python2.7/site-packages/django/template/debug.py" in render_node
73. result = node.render(context)
File"/usr/lib/python2.7/site-packages/django/template/loader_tags.py" in render
64. result = block.nodelist.render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File"/usr/lib/python2.7/site-packages/django/template/debug.py" in render_node
73. result = node.render(context)
File"/usr/lib/python2.7/site-packages/django/template/loader_tags.py" in render
64. result = block.nodelist.render(context)
File"/usr/lib/python2.7/site-packages/django/template/base.py" in render
744. bits.append(self.render_node(node, context))
File"/usr/lib/python2.7/site-packages/django/template/debug.py" in render_node
73. result = node.render(context)
File"/home/ajunkkil/Django/basedraft/messages/templatetags/getusers.py" in render
19. context[self.varname] = User.objects.all()
File"/usr/lib/python2.7/site-packages/django/template/context.py" in __setitem__
53. self.dicts[-1][key] = value

Exception Type: TemplateSyntaxError at /messages/compose/
Exception Value: Caught TypeError while rendering: unhashable type: 'list'