Squirm

Squirm is a database library that facilitates working with Postgres and stored procedures.

About

Squirm is not stable yet. Feel free to play around with it, but unless you want to contribute to its development, you probably shouldn't use it for anything sensitive.

It currently provides:

  • A basic connection pool
  • A little syntactic sugar around the pg gem
  • Class for accessing stored procedures as if they were Ruby procs

Here's a quick demo of how you might use it:

-- Your database
CREATE TABLE "users" (
  "name"  VARCHAR(256),
  "email" VARCHAR(64) NOT NULL UNIQUE
);

CREATE SCHEMA "users";

CREATE FUNCTION "users"."create"(_email text, _name text) RETURNS integer AS $$
  DECLARE
    new_id integer;
  BEGIN
    INSERT INTO "users" (email, name) VALUES (_email, _name)
      RETURNING id INTO new_id;
    IF FOUND THEN
      RETURN new_id;
    END IF;
  END;
$$ LANGUAGE 'plpgsql';

Squirm.connect dbname: "your_database"
create = Squirm::Procedure.new("create", schema: "users")
id = create.call(email: "johndoe@example.com", name: "John Doe")

In and of itself, Squirm offers very little, but is meant to be a basic building block for other libraries, such as Squirm Rails, which adds stored procedure support to Active Record, or Squirm Model, which supplies an Active Model compatible ORM based on stored procedures.

Author

Norman Clarke nclarke@bvision.com

License

Copyright (c) 2011 Norman Clarke and Business Vision S.A.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.