From 72d0dea1c23d16a6258d37b52d7885b387ec10cc Mon Sep 17 00:00:00 2001
From: Masaya Tojo <masaya@tojo.tokyo>
Date: Sun, 12 Mar 2023 23:04:05 +0900
Subject: Add function to update timestamp.

---
 deploy/update_timestamp.sql | 13 +++++++++++++
 revert/update_timestamp.sql |  7 +++++++
 sqitch.plan                 |  1 +
 verify/update_timestamp.sql |  7 +++++++
 4 files changed, 28 insertions(+)
 create mode 100644 deploy/update_timestamp.sql
 create mode 100644 revert/update_timestamp.sql
 create mode 100644 verify/update_timestamp.sql

diff --git a/deploy/update_timestamp.sql b/deploy/update_timestamp.sql
new file mode 100644
index 0000000..c84ca69
--- /dev/null
+++ b/deploy/update_timestamp.sql
@@ -0,0 +1,13 @@
+-- Deploy kakeibo:update_timestamp to pg
+-- requires: schema
+
+BEGIN;
+
+CREATE OR REPLACE FUNCTION kakeibo.update_timestamp() RETURNS TRIGGER AS $$
+  BEGIN
+    NEW.updated_at = NOW();
+    RETURN NEW;
+  END;
+$$ LANGUAGE plpgsql;
+
+COMMIT;
diff --git a/revert/update_timestamp.sql b/revert/update_timestamp.sql
new file mode 100644
index 0000000..07074ac
--- /dev/null
+++ b/revert/update_timestamp.sql
@@ -0,0 +1,7 @@
+-- Revert kakeibo:update_timestamp from pg
+
+BEGIN;
+
+DROP FUNCTION kakeibo.update_timestamp;
+
+COMMIT;
diff --git a/sqitch.plan b/sqitch.plan
index cfe5bbe..2fadd9b 100644
--- a/sqitch.plan
+++ b/sqitch.plan
@@ -9,3 +9,4 @@ insert_transaction [schema transactions] 2023-03-12T07:06:15Z Masaya Tojo <masay
 insert_item [schema items] 2023-03-12T07:25:23Z Masaya Tojo <masaya@tojo.tokyo> # Add function to add new item.
 delete_item [schema items] 2023-03-12T08:14:34Z Masaya Tojo <masaya@tojo.tokyo> # Add function to delete item.
 delete_transaction [schema transactions] 2023-03-12T08:40:47Z Masaya Tojo <masaya@tojo.tokyo> # Add function to delete transaction.
+update_timestamp [schema] 2023-03-12T13:57:49Z Masaya Tojo <masaya@tojo.tokyo> # Add function to update timestamp.
diff --git a/verify/update_timestamp.sql b/verify/update_timestamp.sql
new file mode 100644
index 0000000..e3d8025
--- /dev/null
+++ b/verify/update_timestamp.sql
@@ -0,0 +1,7 @@
+-- Verify kakeibo:update_timestamp on pg
+
+BEGIN;
+
+SELECT has_function_privilege('kakeibo.update_timestamp()', 'EXECUTE');
+
+ROLLBACK;
-- 
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