Adding view to count collabs

src/proxy/migrations/0006_views_to_count_collabs.py

@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+from django.db import connections
+from south.v2 import DataMigration
+
+class Migration(DataMigration):
+
+    def forwards(self, orm):
+        # Selecting trac database
+        connection = connections['trac']
+
+        cursor = connection.cursor()
+        cursor.execute('''
+            CREATE OR REPLACE VIEW ticket_collab_count_view AS
+                SELECT
+                    COALESCE (t1.author, t2.author) as author,
+                    (COALESCE(t1.count, 0) + COALESCE(t2.count, 0)) as count
+                FROM
+                    (SELECT author, count(*) as count
+                     FROM ticket_change
+                     GROUP BY author
+                     ORDER BY author
+                    ) AS t1
+                FULL OUTER JOIN
+                    (SELECT reporter as author, count(*) as count
+                     FROM ticket
+                     GROUP BY reporter
+                     ORDER BY reporter
+                    ) AS t2
+                ON t1.author = t2.author;
+
+            CREATE OR REPLACE VIEW wiki_collab_count_view AS
+                SELECT author, count(*) from wiki GROUP BY author;
+        ''')
+
+    def backwards(self, orm):
+        # Selecting trac database
+        connection = connections['trac']
+
+        cursor = connection.cursor()
+        cursor.execute('''
+            DROP VIEW ticket_collab_count_view;
+            DROP VIEW wiki_collab_count_view;
+        ''')
+
+    complete_apps = ['proxy']
+    symmetrical = True