1 files changed, 48 insertions, 0 deletions
diff --git a/session_messages/.svn/text-base/context_processors.py.svn-base b/session_messages/.svn/text-base/context_processors.py.svn-base
new file mode 100644
index 00000000..df9840fd
--- /dev/null
+++ b/session_messages/.svn/text-base/context_processors.py.svn-base
@@ -0,0 +1,48 @@
+"""
+Context processor for lightweight session messages.
+
+Time-stamp: <2008-07-19 23:16:19 carljm context_processors.py>
+
+"""
+from django.utils.encoding import StrAndUnicode
+
+from session_messages import get_and_delete_messages
+
+def session_messages (request):
+    """
+    Returns session messages for the current session.
+
+    """
+    return { 'session_messages': LazyMessages(request) }
+
+class LazyMessages (StrAndUnicode):
+    """
+    Lazy message container, so messages aren't actually retrieved from
+    session and deleted until the template asks for them.
+
+    """
+    def __init__(self, request):
+        self.request = request
+
+    def __iter__(self):
+        return iter(self.messages)
+
+    def __len__(self):
+        return len(self.messages)
+
+    def __nonzero__(self):
+        return bool(self.messages)
+
+    def __unicode__(self):
+        return unicode(self.messages)
+
+    def __getitem__(self, *args, **kwargs):
+        return self.messages.__getitem__(*args, **kwargs)
+
+    def _get_messages(self):
+        if hasattr(self, '_messages'):
+            return self._messages
+        self._messages = get_and_delete_messages(self.request)
+        return self._messages
+    messages = property(_get_messages)
+