Added some utils

1 files changed, 52 insertions, 0 deletions

diff --git a/servo/lib/utils.py b/servo/lib/utils.py
new file mode 100644
index 0000000..ac2ee05
--- /dev/null
+++ b/servo/lib/utils.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013, First Party Software
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without modification, 
+# are permitted provided that the following conditions are met:
+
+# 1. Redistributions of source code must retain the above copyright notice, 
+# this list of conditions and the following disclaimer.
+
+# 2. Redistributions in binary form must reproduce the above copyright notice, 
+# this list of conditions and the following disclaimer in the documentation 
+# and/or other materials provided with the distribution.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+# SUCH DAMAGE.
+
+def choices_to_dict(t):
+    """
+    Converts a ChoiceField two-tuple to a dict (for JSON)
+    Assumes i[0][0] is always unique
+    """
+    d = {}
+    for i in t:
+        k = str(i[0])
+        d[k] = i[1]
+
+    return d
+
+def empty(v):
+    return v in ('', ' ', None,)
+
+def cache_getset(k, v):
+    """
+    Shortcut for getting and setting cache
+    v should be a callable
+    """
+    from django.core.cache import cache
+    if cache.get(k):
+        return cache.get(k)
+
+    cache.set(k, v())
+    return v