Ticket #19219: log.py

File log.py, 2.2 KB (added by scovetta, 12 years ago)

New log.py file

Line 
1from django import template
2from django.contrib.admin.models import LogEntry
3
4register = template.Library()
5
6class AdminLogNode(template.Node):
7 def __init__(self, limit, varname, user):
8 self.limit, self.varname, self.user = limit, varname, user
9
10 def __repr__(self):
11 return "<GetAdminLog Node>"
12
13 def render(self, context):
14 if self.user is None:
15 context[self.varname] = LogEntry.objects.all().select_related('content_type', 'user')[:self.limit]
16 else:
17 user_id = self.user
18 if not user_id.isdigit():
19 if isinstance(context[self.user], dict):
20 user_id = context[self.user]['id']
21 else:
22 user_id = context[self.user].id
23 context[self.varname] = LogEntry.objects.filter(user__id__exact=user_id).select_related('content_type', 'user')[:self.limit]
24 return ''
25
26@register.tag
27def get_admin_log(parser, token):
28 """
29 Populates a template variable with the admin log for the given criteria.
30
31 Usage::
32
33 {% get_admin_log [limit] as [varname] for_user [context_var_containing_user_obj] %}
34
35 Examples::
36
37 {% get_admin_log 10 as admin_log for_user 23 %}
38 {% get_admin_log 10 as admin_log for_user user %}
39 {% get_admin_log 10 as admin_log %}
40
41 Note that ``context_var_containing_user_obj`` can be a hard-coded integer
42 (user ID) or the name of a template context variable containing the user
43 object whose ID you want.
44 """
45 tokens = token.contents.split()
46 if len(tokens) < 4:
47 raise template.TemplateSyntaxError(
48 "'get_admin_log' statements require two arguments")
49 if not tokens[1].isdigit():
50 raise template.TemplateSyntaxError(
51 "First argument to 'get_admin_log' must be an integer")
52 if tokens[2] != 'as':
53 raise template.TemplateSyntaxError(
54 "Second argument to 'get_admin_log' must be 'as'")
55 if len(tokens) > 4:
56 if tokens[4] != 'for_user':
57 raise template.TemplateSyntaxError(
58 "Fourth argument to 'get_admin_log' must be 'for_user'")
59 return AdminLogNode(limit=tokens[1], varname=tokens[3], user=(len(tokens) > 5 and tokens[5] or None))
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