ActiveRecord 模型生成器：reactive_record

jopen 12年前發布 | 10K 次閱讀 Ruby開發 ActiveRecord

reactive_record 能根據現有的 Postgres 數據庫生成 ActiveRecord 模型。

特性

Fully automatic. It just works.
Creates a model for every table.
Creates a comprehensive initial migration.
Declares key-, uniqueness-, and presence-constraints.
Creates associations.
Adds custom validation methods for CHECK constraints.

class CreateEmployees < ActiveRecord::Migration
  def up
    execute <<-SQL
      CREATE TABLE employees (
        id         SERIAL,
        name       VARCHAR(255) NOT NULL,
        email      VARCHAR(255) NOT NULL UNIQUE,
        start_date DATE NOT NULL,

        PRIMARY KEY (id),
        CONSTRAINT company_email CHECK (email LIKE '%@example.com')
      );
    SQL
  end

  def down
    drop_table :employees
  end
end

ActiveRecord 模型生成器：reactive_record