add missing file

Author: davidgamez

liquibase/changes/feat_fix_geolocation_circular_dep.sql

@@ -0,0 +1,23 @@
+-- This script fix a circular dependency between the gtfsdataset and feed tables
+
+-- 1. Add the new column to gtfsfeed (if not already added)
+ALTER TABLE gtfsfeed
+  ADD COLUMN IF NOT EXISTS geolocation_file_dataset_id VARCHAR(255);
+
+-- 2. Copy existing values from feed to gtfsfeed
+--    (we assume gtfsfeed.id = feed.id, since gtfsfeed is a subtype of feed)
+UPDATE gtfsfeed gf
+SET geolocation_file_dataset_id = f.geolocation_file_dataset_id
+FROM feed f
+WHERE gf.id = f.id
+  AND f.geolocation_file_dataset_id IS NOT NULL;
+
+-- 3. Add the foreign key constraint on gtfsfeed
+ALTER TABLE gtfsfeed
+  ADD CONSTRAINT fk_gtfsfeed_geolocation_file_dataset
+  FOREIGN KEY (geolocation_file_dataset_id) REFERENCES gtfsdataset(id)
+  ON DELETE SET NULL;
+
+-- 4. Drop the old constraint and column from feed
+ALTER TABLE feed DROP CONSTRAINT IF EXISTS fk_feed_geolocation_file_dataset;
+ALTER TABLE feed DROP COLUMN IF EXISTS geolocation_file_dataset_id;