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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:
context[self.varname] = LogEntry.objects.all().select_related()[:self.limit]
else:
if not self.user.isdigit():
self.user = context[self.user].id
context[self.varname] = LogEntry.objects.filter(user__id__exact=self.user).select_related()[:self.limit]
return ''
class DoGetAdminLog:
"""
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.
"""
def __init__(self, tag_name):
self.tag_name = tag_name
def __call__(self, parser, token):
tokens = token.contents.split()
if len(tokens) < 4:
raise template.TemplateSyntaxError, "'%s' statements require two arguments" % self.tag_name
if not tokens[1].isdigit():
raise template.TemplateSyntaxError, "First argument in '%s' must be an integer" % self.tag_name
if tokens[2] != 'as':
raise template.TemplateSyntaxError, "Second argument in '%s' must be 'as'" % self.tag_name
if len(tokens) > 4:
if tokens[4] != 'for_user':
raise template.TemplateSyntaxError, "Fourth argument in '%s' must be 'for_user'" % self.tag_name
return AdminLogNode(limit=tokens[1], varname=tokens[3], user=(len(tokens) > 5 and tokens[5] or None))
register.tag('get_admin_log', DoGetAdminLog('get_admin_log'))
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