Author: clong
Date: 2006-08-14 19:13:16 -0500 (Mon, 14 Aug 2006)
New Revision: 3589
Added:
django/branches/per-object-permissions/django/contrib/auth/templatetags/
django/branches/per-object-permissions/django/contrib/auth/templatetags/__init__.py
django/branches/per-object-permissions/django/contrib/auth/templatetags/auth.py
Log:
[per-object-permissions] Created template tag if_has_perm to check for a users
permission
Added:
django/branches/per-object-permissions/django/contrib/auth/templatetags/__init__.py
===================================================================
Property changes on:
django/branches/per-object-permissions/django/contrib/auth/templatetags/__init__.py
___________________________________________________________________
Name: svn:keywords
+ Date Author Id Revision HeadURL
Added:
django/branches/per-object-permissions/django/contrib/auth/templatetags/auth.py
===================================================================
---
django/branches/per-object-permissions/django/contrib/auth/templatetags/auth.py
(rev 0)
+++
django/branches/per-object-permissions/django/contrib/auth/templatetags/auth.py
2006-08-15 00:13:16 UTC (rev 3589)
@@ -0,0 +1,90 @@
+from django import template
+from django.template import loader
+
+register = template.Library()
+
+def if_has_perm(parser, token):
+ """
+
+ TODO: Update document
+
+ Checks permission on the given user. Will check
+ row level permissions if an object is given.
+
+ Note: Perm name should be in the format of [app_label].[perm codename]
+
+ """
+ tokens = token.split_contents()
+ if len(tokens)<2:
+ raise template.TemplateSyntaxError, "%r tag requires at least 1
arguments" % tokens[0]
+ if len(tokens)>4:
+ raise template.TemplateSyntaxError, "%r tag should have no more then 3
arguments" % tokens[0]
+
+ nodelist_true = parser.parse(('else', 'end_'+tokens[0],))
+ token = parser.next_token()
+ if token.contents == 'else':
+ nodelist_false = parser.parse(('end_'+tokens[0],))
+ parser.delete_first_token()
+ else:
+ nodelist_false = template.NodeList()
+
+ object = None
+ not_flag = False
+ if tokens[1] is "not":
+ not_flag = True
+ permission=tokens[2]
+ if tokens[3]:
+ object=tokens[3]
+ else:
+ permission=tokens[1]
+ if tokens[2]:
+ object=tokens[2]
+
+ if not (permission[0] == permission[-1] and permission[0] in ('"', "'")):
+ raise template.TemplateSyntaxError, "%r tag's argument should be in
quotes" % tokens[0]
+
+ return HasPermNode(permission[1:-1], not_flag, object, nodelist_true,
nodelist_false)
+
+class HasPermNode(template.Node):
+ def __init__(self, permission, not_flag, object, nodelist_true,
nodelist_false):
+ self.permission = permission
+ self.not_flag = not_flag
+ self.object_name = object
+ self.nodelist_true, self.nodelist_false = nodelist_true, nodelist_false
+
+ def __repr__(self):
+ return "<HasPerm node>"
+
+ def __iter__(self):
+ for node in self.nodelist_true:
+ yield node
+ for node in self.nodelist_false:
+ yield node
+
+ def get_nodes_by_type(self, nodetype):
+ nodes = []
+ if isinstance(self, nodetype):
+ nodes.append(self)
+ nodes.extend(self.nodelist_true.get_nodes_by_type(nodetype))
+ nodes.extend(self.nodelist_false.get_nodes_by_type(nodetype))
+ return nodes
+
+ def render(self, context):
+ try:
+ object = template.resolve_variable(self.object_name, context)
+ except template.VariableDoesNotExist:
+ return ''
+
+ try:
+ user = template.resolve_variable("user", context)
+ except template.VariableDoesNotExist:
+ return ''
+
+ bool_perm = user.has_perm(self.permission, object=object)
+
+ if (self.not_flag and not bool_perm) or (not self.not_flag and
bool_perm):
+ return self.nodelist_true.render(context)
+ if (self.not_flag and bool_perm) or (not self.not_flag and not
bool_perm):
+ return self.nodelist_false.render(context)
+
+register.tag('if_has_perm', if_has_perm)
\ No newline at end of file
Property changes on:
django/branches/per-object-permissions/django/contrib/auth/templatetags/auth.py
___________________________________________________________________
Name: svn:keywords
+ Date Author Id Revision HeadURL
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