LAZY Agnostic Application Generators (padrino-lazy)¶ ↑

Overview¶ ↑

Through padrino-lazy, we can include some common properties shared between the model object used a base model object

Padrino is very good framework, and almost follows the DRY principle (Don’t Repeat Yourself) When we need to have some common properties shared between the model object of our ORM, using the generator padrino-gen, We can only include these properties in each model to generate.

I hope this idea will be included in Padrino Framework.

Principle / Step¶ ↑

1. generate a model

2. convert the model into base model ( move this model into lib/ folder)

3. save config file with model base’s list

4. generate a model from base model

5. generate a migration file

Install¶ ↑

gem install padrino-lazy –pre

Usage¶ ↑

Step 1-2-3

$ padrino-lazy base --c config_file --b base_model_name --f field_to_create

Step 4-5

$ padrino-lazy model --c config_file --b base_model_name --f field_to_create --m model_name

Options¶ ↑

--f list field to generate
--c config file's name (saved into config/ folder)
--b base model name (es: BaseModel)
--m model name to create (es: User)

Example¶ ↑

$ padrino-lazy base --c config --b BaseModel --f
"create_at:datetime is_active:boolean"

now we have

• lib/base_model.rb class BaseModel

include DataMapper::Resource

# property <name>, <type>
property :id, Serial
property :create_at, DateTime
property :is_active, Boolean

end

• config/config.yml

  ---
  - base: BaseModel
    fields: create_at:datetime is_active:boolean

---

$ padrino-lazy model --c config --b BaseModel --f "name:string
 have_children:boolean born:date foo:integer"  --m User

• app/models/user.rb

  class User < BaseModel
  
    # property <name>, <type>
    property :name, String
    property :have_children, Boolean
    property :born, Date
    property :foo, Integer
  end
  

• db/migrate/001_create_users.rb

  migration 1, :create_users do
    up do
      create_table :users do
        column :id, Integer, :serial => true
        column :name, String
        column :have_children, Boolean
        column :born, Date
        column :foo, Integer
     end
    end
  
    down do
      drop_table :users
    end
  end
  

• db/migrate/002_add_basic_model_to_user.rb

  migration 2, :add_basic_model_to_user do
    up do
      modify_table :users do
        add_column :name, String
       add_column :have_children, Boolean
       add_column :born, Date
       add_column :foo, Integer
      end
    end
  
    down do
      modify_table :users do
        drop_column :name
       drop_column :have_children
       drop_column :born
       drop_column :foo
     end
    end
  end
  

Known issue¶ ↑

• VERY VERY alpha code !! (thanks to my pig/lazy side :D )

• –f options need dobule quote around fields

• –b write in CamelCase

• TESTING only with datamapper and activerecord into linux machine

TODO:¶ ↑

• Test all code !

• Use Padrino::Generators instead of Commander

• Default config file name (very lazy :P )

THANK¶ ↑

Team Padrino DaddYE Piedinodifata