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authortom barrett <spalf0@gmail.com>2019-03-28 03:33:14 -0500
committertom barrett <spalf0@gmail.com>2019-03-28 07:24:51 -0500
commitf8c446ce74329fc5844e0fc1fd82e618242196f4 (patch)
tree02319b823da4888c6d4e2faa9f482be11caad353 /migrations/0_diesel_inital_setup
parentca5ee0b32b616fb8fa5e7e44c74acecefab719c3 (diff)
migrate and revert executable, query insert and delete test
Diffstat (limited to 'migrations/0_diesel_inital_setup')
-rw-r--r--migrations/0_diesel_inital_setup/down.sql6
-rw-r--r--migrations/0_diesel_inital_setup/up.sql33
2 files changed, 39 insertions, 0 deletions
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;