Source Code for Module django.contrib.admin.templatetags.log

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