From 9d95f2e8f8401819f11f33c00d4e2e72b67576a6 Mon Sep 17 00:00:00 2001
From: Mohammed Sohail <sohailsameja@gmail.com>
Date: Thu, 16 Mar 2023 11:12:06 +0000
Subject: [PATCH] feat: add updated_at postgres fn + trigger

* closes #66
---
 migrations/003_gas_quota.sql  |  2 +-
 migrations/004_updated_at.sql | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 migrations/004_updated_at.sql

diff --git a/migrations/003_gas_quota.sql b/migrations/003_gas_quota.sql
index 746bc6c..d8f643e 100644
--- a/migrations/003_gas_quota.sql
+++ b/migrations/003_gas_quota.sql
@@ -25,4 +25,4 @@ $$ language plpgsql;
 create trigger insert_gas_quota
     after insert on keystore
 for each row
-execute procedure insert_gas_quota()
\ No newline at end of file
+execute procedure insert_gas_quota();
\ No newline at end of file
diff --git a/migrations/004_updated_at.sql b/migrations/004_updated_at.sql
new file mode 100644
index 0000000..8ab8045
--- /dev/null
+++ b/migrations/004_updated_at.sql
@@ -0,0 +1,33 @@
+ALTER TABLE keystore
+ADD COLUMN updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;
+
+ALTER TABLE otx_dispatch
+ADD COLUMN updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;
+
+ALTER TABLE gas_quota
+ADD COLUMN updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;
+
+-- updated_at function
+create function update_timestamp()
+    returns trigger
+as $$
+begin
+    new.updated_at = current_timestamp;
+    return new;
+end;
+$$ language plpgsql;
+
+create trigger update_keystore_timestamp
+    before update on keystore
+for each row
+execute procedure update_timestamp();
+
+create trigger update_otx_dispatch_timestamp
+    before update on otx_dispatch
+for each row
+execute procedure update_timestamp();
+
+create trigger update_gas_quota_timestamp
+    before update on gas_quota
+for each row
+execute procedure update_timestamp();
\ No newline at end of file