From f8c446ce74329fc5844e0fc1fd82e618242196f4 Mon Sep 17 00:00:00 2001 From: tom barrett Date: Thu, 28 Mar 2019 03:33:14 -0500 Subject: migrate and revert executable, query insert and delete test --- migrations/0_diesel_inital_setup/down.sql | 6 ++++++ migrations/0_diesel_inital_setup/up.sql | 33 +++++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) create mode 100644 migrations/0_diesel_inital_setup/down.sql create mode 100644 migrations/0_diesel_inital_setup/up.sql (limited to 'migrations/0_diesel_inital_setup') diff --git a/migrations/0_diesel_inital_setup/down.sql b/migrations/0_diesel_inital_setup/down.sql new file mode 100644 index 0000000..a9f5260 --- /dev/null +++ b/migrations/0_diesel_inital_setup/down.sql @@ -0,0 +1,6 @@ +-- This file was automatically created by Diesel to setup helper functions +-- and other internal bookkeeping. This file is safe to edit, any future +-- changes will be added to existing projects as new migrations. + +DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass); +DROP FUNCTION IF EXISTS diesel_set_updated_at(); diff --git a/migrations/0_diesel_inital_setup/up.sql b/migrations/0_diesel_inital_setup/up.sql new file mode 100644 index 0000000..dc50259 --- /dev/null +++ b/migrations/0_diesel_inital_setup/up.sql @@ -0,0 +1,33 @@ +-- This file was automatically created by Diesel to setup helper functions +-- and other internal bookkeeping. This file is safe to edit, any future +-- changes will be added to existing projects as new migrations. + +-- Sets up a trigger for the given table to automatically set a column called +-- `updated_at` whenever the row is modified (unless `updated_at` was included +-- in the modified columns) +-- +-- # Example +-- +-- ```sql +-- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW()); +-- +-- SELECT diesel_manage_updated_at('users'); +-- ``` +CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$ +BEGIN + EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s + FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl); +END; +$$ LANGUAGE plpgsql; + +CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$ +BEGIN + IF ( + NEW IS DISTINCT FROM OLD AND + NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at + ) THEN + NEW.updated_at := current_timestamp; + END IF; + RETURN NEW; +END; +$$ LANGUAGE plpgsql; -- cgit v1.2.3