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from django import template
from django.contrib.admin.models import LogEntry
register = template.Library()
class AdminLogNode(template.Node):
def __init__(self, limit, varname, user):
self.limit, self.varname, self.user = limit, varname, user
def __repr__(self):
return "<GetAdminLog Node>"
def render(self, context):
if self.user is None:
entries = LogEntry.objects.all()
else:
user_id = self.user
if not user_id.isdigit():
user_id = context[self.user].pk
entries = LogEntry.objects.filter(user__pk=user_id)
context[self.varname] = entries.select_related('content_type', 'user')[:int(self.limit)]
return ''
@register.tag
def get_admin_log(parser, token):
"""
Populates a template variable with the admin log for the given criteria.
Usage::
{% get_admin_log [limit] as [varname] for_user [context_var_containing_user_obj] %}
Examples::
{% get_admin_log 10 as admin_log for_user 23 %}
{% get_admin_log 10 as admin_log for_user user %}
{% get_admin_log 10 as admin_log %}
Note that ``context_var_containing_user_obj`` can be a hard-coded integer
(user ID) or the name of a template context variable containing the user
object whose ID you want.
"""
tokens = token.contents.split()
if len(tokens) < 4:
raise template.TemplateSyntaxError(
"'get_admin_log' statements require two arguments")
if not tokens[1].isdigit():
raise template.TemplateSyntaxError(
"First argument to 'get_admin_log' must be an integer")
if tokens[2] != 'as':
raise template.TemplateSyntaxError(
"Second argument to 'get_admin_log' must be 'as'")
if len(tokens) > 4:
if tokens[4] != 'for_user':
raise template.TemplateSyntaxError(
"Fourth argument to 'get_admin_log' must be 'for_user'")
return AdminLogNode(limit=tokens[1], varname=tokens[3], user=(tokens[5] if len(tokens) > 5 else None))
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