little things

[zzz-floof.git] / floof / lib / helpers.py

diff --git a/floof/lib/helpers.py b/floof/lib/helpers.py
index ff55eb6..c8a1251 100644 (file)
--- a/floof/lib/helpers.py
+++ b/floof/lib/helpers.py
@@ -1,15 +1,33 @@
+# -*- coding: utf-8 -*-
 """Helper functions
 
 Consists of functions to typically be used within templates, but also
-available to Controllers. This module is available to templates as 'h'.
+available to Controllers. This module is available to both as 'h'.
 """
 # Import helpers as desired, or define your own, ie:
-#from webhelpers.html.tags import checkbox, password
+# from webhelpers.html.tags import checkbox, password
 from webhelpers import *
 from routes import url_for, redirect_to
+from pylons import url
 
+# Scaffolding helper imports
 from webhelpers.html.tags import *
 from webhelpers.html import literal
 from webhelpers.pylonslib import Flash
 import sqlalchemy.types as types
 flash = Flash()
+# End of.
+
+def get_object_or_404(model, **kw):
+    from pylons.controllers.util import abort
+    """
+    Returns object, or raises a 404 Not Found is object is not in db.
+    Uses elixir-specific `get_by()` convenience function (see elixir source:
+    http://elixir.ematia.de/trac/browser/elixir/trunk/elixir/entity.py#L1082)
+    Example: user = get_object_or_404(model.User, id = 1)
+    """
+    obj = model.get_by(**kw)
+    if obj is None:
+        abort(404)
+    return obj
+