From: Ray Speth <speth@mit.edu>
Date: Sun, 21 Mar 2010 04:49:17 +0000 (-0400)
Subject: Tags that are associated with any expenditures are automatically pruned
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=4d724b5efd7fd7c2c38a25e9d9210fe869aa0441;hp=53c0833dd52f70a3f57f00b2dc2ca436dd76e94f;p=bluechips.git

Tags that are associated with any expenditures are automatically pruned
---

diff --git a/bluechips/controllers/spend.py b/bluechips/controllers/spend.py
index ddd0a3c..4329307 100644
--- a/bluechips/controllers/spend.py
+++ b/bluechips/controllers/spend.py
@@ -63,6 +63,12 @@ def validate_state(value_dict, state, validator):
 ValidateNotAllZero = SimpleFormValidator(validate_state)
 
 
+def prune_tags():
+    for tag in meta.Session.query(model.Tag).all():
+        if not tag.expenditures:
+            meta.Session.delete(tag)
+    meta.Session.commit()
+
 class ExpenditureSchema(Schema):
     "Validate an expenditure."
     allow_extra_fields = False
@@ -163,6 +169,8 @@ class SpendController(BaseController):
                                   'op': op})
         g.handle_notification(involved_users, show, body)
 
+        prune_tags()
+
         return h.redirect_to('/')
 
     def delete(self, id):
@@ -195,4 +203,6 @@ class SpendController(BaseController):
                                       'op': 'deleted'})
             g.handle_notification(involved_users, show, body)
 
+            prune_tags()
+
         return h.redirect_to('/')