Module: Waves::Layers::ORM::Sequel

Defined in:
lib/layers/orm/sequel.rb

Overview

Sets up the Sequel connection and configures AutoCode on Models, so that constants in that namespace get loaded from file or created as subclasses of Models::Default

Defined Under Namespace

Modules: ControllerMethods

Class Method Summary collapse

Class Method Details

.included(app) ⇒ Object

On inclusion, this module:

  • creates on the application module a database method that establishes the Sequel connection

  • arranges for autoloading/autocreation of missing constants in the Models namespace

  • defines Sequel-specific helper methods on Waves::Controllers::Base

The controller helper methdods are:

  • all

  • find(name)

  • create

  • delete(name)

  • update(name)



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# File 'lib/layers/orm/sequel.rb', line 26

def self.included(app)
  
  def app.database ; @sequel ||= ::Sequel.open( config.database ) ; end
              
  app.auto_create_module( :Models ) do
    include AutoCode
    auto_create_class :Default, ::Sequel::Model
    auto_load :Default, :directories => [ :models ]
  end
  
  app.auto_eval :Models do
    auto_create_class true, app::Models::Default
    auto_load true, :directories => [ :models ]
    # set the Sequel dataset based on the model class name
    # note that this is not done for app::Models::Default, as it isn't 
    # supposed to represent a table
    auto_eval true do
      default = superclass.basename.snake_case.pluralize.intern
      if @dataset && @dataset.opts[:from] != [ default ]
        # don't clobber dataset from autoloaded file
      else
        set_dataset Waves.application.database[ basename.snake_case.pluralize.intern ]
      end
    end
  end
    
  Waves::Controllers::Base.instance_eval do
    include Waves::Layers::ORM::Sequel::ControllerMethods
  end
    
end