diff options
| -rw-r--r-- | Cargo.toml | 3 | ||||
| -rw-r--r-- | migrations/00000000000000_diesel_initial_setup/down.sql | 2 | ||||
| -rw-r--r-- | migrations/00000000000000_diesel_initial_setup/up.sql | 36 |
3 files changed, 41 insertions, 0 deletions
@@ -6,3 +6,6 @@ authors = ["Harald Eilertsen <haraldei@anduin.net>"] [dependencies] rocket = "0.3.3" rocket_codegen = "0.3.3" +diesel = { version = "0.16.0", features = ["postgres"] } +diesel_codegen = { version = "0.16.0", features = ["postgres"] } +dotenv = "0.9.0" diff --git a/migrations/00000000000000_diesel_initial_setup/down.sql b/migrations/00000000000000_diesel_initial_setup/down.sql new file mode 100644 index 0000000..8fb31a8 --- /dev/null +++ b/migrations/00000000000000_diesel_initial_setup/down.sql @@ -0,0 +1,2 @@ +DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass); +DROP FUNCTION IF EXISTS diesel_set_updated_at(); diff --git a/migrations/00000000000000_diesel_initial_setup/up.sql b/migrations/00000000000000_diesel_initial_setup/up.sql new file mode 100644 index 0000000..d68895b --- /dev/null +++ b/migrations/00000000000000_diesel_initial_setup/up.sql @@ -0,0 +1,36 @@ +-- 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; |