Harden staff assignment

backend/src/main/resources/db/migration/V15__appointment_adoption_employee_required.sql

@@ -0,0 +1,61 @@
+ALTER TABLE appointment
+    ADD COLUMN employeeId BIGINT NULL;
+
+UPDATE appointment a
+SET a.employeeId = (
+    SELECT es.employeeId
+    FROM employeeStore es
+    JOIN employee e ON e.employeeId = es.employeeId
+    JOIN users u ON u.id = e.user_id
+    WHERE es.storeId = a.storeId
+      AND e.isActive = TRUE
+      AND u.role = 'STAFF'
+    ORDER BY es.employeeId ASC
+    LIMIT 1
+)
+WHERE a.employeeId IS NULL;
+
+UPDATE appointment a
+SET a.employeeId = (
+    SELECT e.employeeId
+    FROM employee e
+    JOIN users u ON u.id = e.user_id
+    WHERE e.isActive = TRUE
+      AND u.role = 'STAFF'
+    ORDER BY e.employeeId ASC
+    LIMIT 1
+)
+WHERE a.employeeId IS NULL;
+
+ALTER TABLE appointment
+    ADD CONSTRAINT fk_appointment_employee
+        FOREIGN KEY (employeeId) REFERENCES employee(employeeId);
+
+CREATE INDEX idx_appointment_employeeId ON appointment(employeeId);
+
+ALTER TABLE appointment
+    MODIFY employeeId BIGINT NOT NULL;
+
+ALTER TABLE adoption
+    ADD COLUMN employeeId BIGINT NULL;
+
+UPDATE adoption a
+SET a.employeeId = (
+    SELECT e.employeeId
+    FROM employee e
+    JOIN users u ON u.id = e.user_id
+    WHERE e.isActive = TRUE
+      AND u.role = 'STAFF'
+    ORDER BY e.employeeId ASC
+    LIMIT 1
+)
+WHERE a.employeeId IS NULL;
+
+ALTER TABLE adoption
+    ADD CONSTRAINT fk_adoption_employee
+        FOREIGN KEY (employeeId) REFERENCES employee(employeeId);
+
+CREATE INDEX idx_adoption_employeeId ON adoption(employeeId);
+
+ALTER TABLE adoption
+    MODIFY employeeId BIGINT NOT NULL;