Initialize default settings if they are missing in the setting module

(imported from commit 97eb19c603436d460ad1832827dc3ec34c36bf31)

zproject/local_settings_template.py

@@ -66,9 +66,6 @@ elif DEPLOYED:
 else:
     EXTERNAL_HOST = 'localhost:9991'
 
-# TODO: Make this not required
-EMBEDLY_KEY=""
-
 # TODO: Replace these
 S3_KEY=""
 S3_SECRET_KEY=""

zproject/settings.py

@@ -196,6 +196,18 @@ RATE_LIMITING_RULES = [
     (60, 100),     # 100 requests max every minute
     ]
 
+# For any settings that are not defined in local_settings.py,
+# we want to initialize them to sane default
+DEFAULT_SETTINGS = {'TWITTER_CONSUMER_KEY': '',
+                    'TWITTER_CONSUMER_SECRET': '',
+                    'TWITTER_ACCESS_TOKEN_KEY': '',
+                    'TWITTER_ACCESS_TOKEN_SECRET': '',
+                    'EMBEDLY_KEY': ''}
+
+for setting_name, setting_val in DEFAULT_SETTINGS.iteritems():
+    if not setting_name in vars():
+        vars()[setting_name] = setting_val
+
 # Static files and minification
 
 STATIC_URL = '/static/'