Added upgrade to remove 'signed' index

Author: chris-adam

src/collective/dms/scanbehavior/configure.zcml

@@ -30,4 +30,12 @@
         handler=".upgrades.v2"
         profile="collective.dms.scanbehavior:default" />
 
+    <genericsetup:upgradeStep
+        title="Migration profile for collective.dms.scanbehavior to 3"
+        description="Upgrade from 2 to 3"
+        source="2"
+        destination="3"
+        handler=".upgrades.v3"
+        profile="collective.dms.scanbehavior:default" />
+
 </configure>

src/collective/dms/scanbehavior/profiles/default/metadata.xml

@@ -1,4 +1,4 @@
 <?xml version="1.0"?>
 <metadata>
-  <version>2</version>
+  <version>3</version>
 </metadata>

src/collective/dms/scanbehavior/upgrades.py

@@ -30,3 +30,14 @@ def v2(context):
         obj = brain.getObject()
         obj.reindexObject(idxs=["signed"])
     logger.info("%d objects were migrated" % nb)
+
+
+def v3(context):
+    catalog = api.portal.get_tool("portal_catalog")
+    registered_indexes = catalog.indexes()
+    index = "signed"
+    if index in registered_indexes:
+        catalog.delIndex(index)
+        logger.info('Removed index "%s"...' % index)
+    else:
+        logger.info('Trying to remove an unexisting index with name "%s"...' % index)