Normalize existing website column of organization

Author: skwowet

backend/src/database/migrations/U1694533080__normalizeOrgWebsiteColumn.sql

@@ -0,0 +1,3 @@
+DROP INDEX idx_org_tenant_website ON organizations;
+
+-- it's a destructive operation in up migration, so we can't really undo it

backend/src/database/migrations/V1694533080__normalizeOrgWebsiteColumn.sql

@@ -0,0 +1,26 @@
+CREATE UNIQUE INDEX idx_org_tenant_website ON organizations (tenantId, website);
+
+DO
+$$
+    DECLARE
+        org_record  organizations%ROWTYPE;
+        correct_url text;
+    BEGIN
+        FOR org_record IN (SELECT *
+                           FROM organizations
+                           WHERE website LIKE 'http://%'
+                              OR website LIKE 'https://%'
+                              OR website LIKE 'www.%')
+            LOOP
+                correct_url := (SELECT CASE
+                                           WHEN position('www.' in org_record.website) > 0 THEN
+                                               split_part(split_part(org_record.website, 'www.', 2), '/', 1)
+                                           ELSE
+                                               split_part(split_part(org_record.website, '//', 2), '/', 1)
+                                           END);
+                RAISE NOTICE 'org id: %, fixed url: %', org_record.id, correct_url;
+                UPDATE organizations SET website = correct_url WHERE id = org_record.id;
+            END LOOP;
+        COMMIT;
+    END;
+$$;