untuk app/models/kamar.rb
kayaknya mesti sedikit dirubah menjadi:
class Kamar < ActiveRecord: :Base
belongs_to :class_name => "Hotel",
:foreign_key => "id_hotel"
end
karena secara default foreign key untuk tabel kamar adalah hotel_id, sehingga
perlu kita override menjadi id_hotel
def show
@kamar = Kamar.find(params[:id])
end
di show.rhtml kita pake
kamar id : <%= @kamar.id %> <br/>
hotel id: <%= @kamar.hotel.id %>
mungkin begitu, tapi saya belum coba ya..
----- Original Message ----
From: secreet admirer <[EMAIL PROTECTED]>
To: [email protected]
Sent: Tuesday, October 23, 2007 1:28:32 PM
Subject: [id-ruby] [Tanya] Tampilkan Data Di Tabel Lain
Saya bingung, mohon bantuan. Saya mo tampilkan data yang ada di
tabel lain yang terelasi antar tabel. Berikut Keterangannya :
------------ --------- --------- --------- --------- --------- -
Location : app/models/kamar. rb
------------ --------- --------- --------- --------- --------- -
class Kamar < ActiveRecord: :Base
belongs_to :hotel
...
def self.find_all_ in_kamar( hotel)
hotel = Hotel.find_by_ name(hotel)
self.find :all, :conditions => "id_hotel = #{Hotel.id}"
end
...
------------ --------- --------- --------- --------- --------- -
Location : db/migrate/kamar. rb
------------ --------- --------- --------- --------- --------- -
class CreateKamars < ActiveRecord: :Migration
def self.up
create_table :kamars do |t|
t.column :id_hotel, :string, :limit => 8
...
end
execute 'ALTER TABLE kamars ADD CONSTRAINT fk_kamars_hotels
FOREIGN KEY ( id_hotel ) REFERENCES hotels( id ) ON DELETE CASCADE'
...
end
------------ --------- --------- --------- --------- --------- -
Gimana caranya supaya supaya di view/kamar/show. rhtml saya bisa menampilkan
informasi semua data hotel yang memiliki id hotel sesuai dengan id_hotel pada
tabel kamar. Apa yang harus saya tulis di :
class KamarController < ApplicationControll er
....
def show
@kamar = Kamar.find(params[ :id])
?? Apa yang harus saya tulis disini utk menampilkan data hotel??
end
....
Saya sudah coba ini dan berikut pesan pesan error mereka (T_T)
------------ --------- --------- -----
Experimen pertama
------------ --------- --------- ----
def show
@kamar = Kamar.find(params[ :id])
@hotel = Hotel.find(: all, :conditions => "id = '[EMAIL PROTECTED]'" )
end
------------ --------- --------- --------- -----
Experimen pertama && Error
------------ --------- --------- --------- -----
NoMethodError in KamarController# show
You have a nil object when you didn't expect it!
The error occurred while evaluating nil.id_hotel
Hiks.. banyak experimennya sampe takut kepanjangan. .. PLEASE ID-RUBY PIMP MY
CODING. sekalian kalo boleh sama coding buat show.rhtml nya.
[-o< Pleaseeee... Thanks for
------------ --------- --------- ---
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