haciendo datatables de los pagos

src/main/resources/db/changelog/changesets/0008-update-cart-status-constraint.yml

@@ -0,0 +1,28 @@
+databaseChangeLog:
+  - changeSet:
+      id: 0008-update-cart-status-constraint
+      author: jjo
+      changes:
+        # 1) Eliminar el índice único antiguo (user_id, status)
+        - sql:
+            sql: |
+              ALTER TABLE carts
+              DROP INDEX uq_carts_user_active;
+
+        # 2) Añadir columna generada 'active_flag'
+        #    Será 1 si status = 'ACTIVE', y NULL en cualquier otro caso
+        - sql:
+            sql: |
+              ALTER TABLE carts
+              ADD COLUMN active_flag TINYINT(1)
+              GENERATED ALWAYS AS (
+                CASE WHEN status = 'ACTIVE' THEN 1 ELSE NULL END
+              );
+
+        # 3) Crear el nuevo índice único:
+        #    solo limita (user_id, active_flag=1),
+        #    se permiten muchos registros con active_flag NULL (LOCKED, COMPLETED, etc.)
+        - sql:
+            sql: |
+              CREATE UNIQUE INDEX uq_carts_user_active
+              ON carts (user_id, active_flag);

src/main/resources/db/changelog/master.yml

@@ -12,4 +12,6 @@ databaseChangeLog:
   - include:
       file: db/changelog/changesets/0006-add-cart-direcciones.yml
   - include:
-      file: db/changelog/changesets/0007-payments-core.yml
+      file: db/changelog/changesets/0007-payments-core.yml
+  - include:
+      file: db/changelog/changesets/0008-update-cart-status-constraint.yml