Merge pull request #408 from colouring-london/features/migrations_team

Features/migrations team

.gitignore

@@ -18,6 +18,8 @@ etl/**/*.xls
 etl/**/*.xlsx
 etl/**/*.zip
 
+.DS_Store
+
 # Cache
 app/tilecache/**/*.png
 app/tilecache/**/*.mbtiles

migrations/0xx.team.down.sql

@@ -0,0 +1,3 @@
+-- Remove team fields, update in paralell with adding new fields
+-- Award or awards (may be multiple) stored as json b object
+ALTER TABLE buildings DROP COLUMN IF EXISTS team_awards;

migrations/0xx.team.up.sql

@@ -0,0 +1,8 @@
+--Storing as json b, create column defined as jsonb
+--This contains the award name and award year
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS team_awards jsonb;
+
+--To validate this input, the following confirms it's an valid object but not that the items in the object are validated agains those we will acccept
+ALTER TABLE buildings
+    ADD CONSTRAINT data_is_valid CHECK (is_jsonb_valid ('{"type": "object"}', team_awards));