1 files changed, 28 insertions, 0 deletions
diff --git a/packages/templatetags/package_extras.py b/packages/templatetags/package_extras.py
new file mode 100644
index 0000000..8b55221
--- /dev/null
+++ b/packages/templatetags/package_extras.py
@@ -0,0 +1,28 @@
+from django import template
+
+register = template.Library()
+
+class BuildQueryStringNode(template.Node):
+	def __init__(self, sortfield):
+		self.sortfield = sortfield
+	def render(self, context):
+		qs = context['querystring'].copy()
+		if qs.has_key('sort') and qs['sort'] == self.sortfield:
+			qs['sort'] = '-' + self.sortfield
+		else:
+			qs['sort'] = self.sortfield
+		return '?' + qs.urlencode()
+
+@register.tag(name='buildsortqs')
+def do_buildsortqs(parser, token):
+	try:
+		tagname, sortfield = token.split_contents()
+	except ValueError:
+		raise template.TemplateSyntaxError, "%r tag requires a single argument" % tagname
+	if not (sortfield[0] == sortfield[-1] and sortfield[0] in ('"', "'")):
+		raise template.TemplateSyntaxError, "%r tag's argument should be in quotes" % tagname
+	return BuildQueryStringNode(sortfield[1:-1])
+
+@register.filter(name='space2br')
+def space2br(value):
+	return value.replace(' ', '<br />')