Updated up migration

Author: akshatsinha007

scripts/sql/33503701_cronjob_job_1-6-0.up.sql

@@ -1,5 +1,19 @@
-INSERT INTO "public"."chart_ref" ("location", "version", "is_default", "active", "created_on", "created_by", "updated_on", "updated_by", "name","deployment_strategy_path") VALUES
-('cronjob-chart_1-6-0', '1.6.0', 'f', 't', 'now()', 1, 'now()', 1, 'Job & CronJob','pipeline-values.yaml');
+-- First, safely insert the chart reference if it doesn't already exist.
+INSERT INTO "public"."chart_ref" ("location", "version", "is_default", "active", "created_on", "created_by", "updated_on", "updated_by", "name", "deployment_strategy_path")
+SELECT 'cronjob-chart_1-6-0', '1.6.0', 'f', 't', 'now()', 1, 'now()', 1, 'Job & CronJob', 'pipeline-values.yaml'
+WHERE NOT EXISTS (
+    SELECT 1 FROM "public"."chart_ref" WHERE "location" = 'cronjob-chart_1-6-0'
+);
 
-INSERT INTO global_strategy_metadata_chart_ref_mapping ("global_strategy_metadata_id","chart_ref_id", "active","default","created_on", "created_by", "updated_on", "updated_by") VALUES 
-((select id from global_strategy_metadata where name='ROLLING') ,(select id from chart_ref where location='cronjob-chart_1-6-0'), true,true,now(), 1, now(), 1);
+-- Next, safely insert the mapping if it doesn't already exist.
+INSERT INTO "public"."global_strategy_metadata_chart_ref_mapping" ("global_strategy_metadata_id", "chart_ref_id", "active", "default", "created_on", "created_by", "updated_on", "updated_by")
+SELECT
+    (SELECT "id" FROM "public"."global_strategy_metadata" WHERE "name" = 'ROLLING'),
+    (SELECT "id" FROM "public"."chart_ref" WHERE "location" = 'cronjob-chart_1-6-0'),
+    true, true, 'now()', 1, 'now()', 1
+WHERE NOT EXISTS (
+    SELECT 1
+    FROM "public"."global_strategy_metadata_chart_ref_mapping"
+    WHERE "global_strategy_metadata_id" = (SELECT "id" FROM "public"."global_strategy_metadata" WHERE "name" = 'ROLLING')
+      AND "chart_ref_id" = (SELECT "id" FROM "public"."chart_ref" WHERE "location" = 'cronjob-chart_1-6-0')
+);