feat(todoMigration): migration script for todos

This commits add a migration script for changing the 'todoId' into
the 'title' for todo documents.

This is necessary due to the changes in eclipse-sw360#517.

Closes eclipse-sw360#586

Signed-off-by: Leo von Klenze <[email protected]>

scripts/migrations/012_migrate_todoid_to_title.py

@@ -0,0 +1,44 @@
+#!/usr/bin/python
+# -----------------------------------------------------------------------------
+# Copyright Siemens AG, 2016. Part of the SW360 Portal Project.
+#
+# All rights reserved.   This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License v1.0
+# which accompanies this distribution, and is available at
+# http://www.eclipse.org/legal/epl-v10.html
+#
+# This is a manual database migration script. It is assumed that a
+# dedicated framework for automatic migration will be written in the
+# future. When that happens, this script should be refactored to conform
+# to the framework's prerequisites to be run by the framework. For
+# example, server address and db name should be parametrized, the code
+# reorganized into a single class or function, etc.
+#
+# initial author: [email protected]
+#
+# -----------------------------------------------------------------------------
+
+import couchdb
+
+COUCHSERVER = "http://localhost:5984/"
+DBNAME = 'sw360db'
+
+couch=couchdb.Server(COUCHSERVER)
+db = couch[DBNAME]
+
+todos_by_id_fun = '''function(doc){
+    if (doc.type=="todo"){
+        emit(doc._id, doc)
+    }
+}'''
+
+todos = db.query(todos_by_id_fun)
+
+
+print 'Updating todos and replace todoId with title'
+for todo_row in todos:
+    todo = todo_row.value
+    todo['title'] = str(todo['todoId'])
+    del todo['todoId']
+    db.save(todo)
+

scripts/migrations/README.md

@@ -30,6 +30,7 @@ To migrate it is recommended to do this in the following order:
 - `008_add_component_type_to_moderation_requests.py`
 ### 3.3.0 -> 3.4.0
 - `011_migrate_attachment_usages_license_info.py`
+- `012_migrate_todoid_to_title.py`
 
 ## Optional usage
 - `009_overwrite_release_name_with_component_name.py`