Squirm

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

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.

Norman Clarke nclarke@bvision.com

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

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