yup, sebelumnya saya pakai acts_as_tree tapi sekarang saya menggunakan STI,
rasanya bener aja :p
class Location < ActiveRecord::Base
end
class Branch < Location
has_many :regions, :foreign_key => :parent_id # parent_id sebelumnya
dipakai buat acts_as_tree
end
class Region < Location
belongs_to :branch, :foreign_key => :parent_id
has_many :streets, :foreign_key => :parent_id
end
class Street < Location
belongs_to :region, :foreign_key => :parent_id
has_many :customers
end
cheers...
(\ /)
(O.o)
(> <)
This is Bunny. Copy Bunny into your signature to help him on his way to
world domination.
________________________________
From: Reza Primardiansyah <[email protected]>
To: [email protected]
Sent: Fri, November 13, 2009 3:54:12 PM
Subject: Re: [id-ruby] acts as tree atau STI ?
Pertanyaan utamanya lebih pada "apakah memang bisa dikelompokkan jadi satu
entitas besar (superclass)? Apa nama superclass itu?"
Saya sendiri membuat perjenjangan wilayah administratif (Propinsi,
Kabupaten, dst) pakai STI *dan* acts_as_tree (sedang nimbang2 pakai
ancestry).
class Location < AR::Base
acts_as_tree
end
class Propinsi < Location
has_many :kabupaten2 #mbuat aturan pluralisasi sendiri di
config/environment.rb
end
class Kabupaten < Location
belongs_to :propinsi
end
Hope this helps
2009/11/12 rahmat budiharso <[email protected]>
>
>
> saya punya format data seperti ini:
>
> branch has many regions
>
> region belongs to branch
> region has many streets
>
> street belongs to region
> street has many customers
>
> atribut untuk branch, region n street sama (hanya code n name), nah
> kira-kira lebih baik pakai plugin acts_as_tree atau single table inheritance
> ?
>
> makasih...
>
> (\ /)
> (O.o)
> (> <)
>
> This is Bunny. Copy Bunny into your signature to help him on his way to
> world domination.
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
ID-Ruby
Berdiskusi dan belajar bersama Bahasa Pemrograman Ruby, termasuk segala varian
Ruby (JRuby, Rubinius, IronRuby, XRuby), dan program yang dibuat dengan Ruby
(Ruby on Rails, JRuby on Rails, Merb)
http://rubyurl.com/Q8DD
http://news.gmane.org/gmane.comp.lang.ruby.region.indonesia
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