Ruby/Ruby on Rails/step by step
Ruby on Rails¤Ç·«¤êÊÖ¤·Áàºî¤·¤Æ³Ð¤¨¤¿¤¤»öÊÁ¤òstep¤È¤·¤ÆÀ°Íý¤·¤Þ¤·¤¿¡£
- step01 InstantRails¤Îµ¯Æ°¤Èirb
- step02 ¥×¥í¥¸¥§¥¯¥È¤Î¿·µ¬ºîÀ®
- step03 Mongrel web¥µ¡¼¥Ð¤Îµ¯Æ°
- step04 Aptana Studio RadRails
- step05 ¥Ç¡¼¥¿¥Ù¡¼¥¹ÀßÄê
- step06 ¥Ç¡¼¥¿¥Ù¡¼¥¹ºîÀ®
- step07 migration¤Ë¤è¤ë¥Æ¡¼¥Ö¥ëºîÀ®
- step08 scaffold¤Ë¤è¤ê¥â¥Ç¥ë¤ª¤è¤Ó¥â¥Ç¥ë¤Ë¥¢¥¯¥»¥¹¤¹¤ë¾ì¤Î¥Ú¡¼¥¸¤òºîÀ®
- step09 ¥â¥Ç¥ë¤Ø¤Î¸¡¾Ú½èÍýÄɲÃ
- step10 ·îÁªÂò¤Î¥Õ¥©¡¼¥à¤ò±Ñ¸ì¤«¤é¿ô»ú¤ËÊѹ¹
- step11 ¥¤¥ó¥¹¥È¡¼¥ë¤µ¤ì¤¿gem¤ÎAPI¥É¥¥å¥á¥ó¥È»²¾È
- step12 Ruby-GetText¤Î¥¤¥ó¥¹¥È¡¼¥ë
- step13 Ruby-GetText¤òÍøÍѤ¹¤ë¤è¤¦¥×¥í¥¸¥§¥¯¥È¤ËÀßÄê
- step14 Ruby-GetText¤òÍøÍѤ·¤ÆÆüËܸ첽
- step15 ¥Æ¥¹¥È¶îÆ°³«È¯(TDD, Test Driven Development)¤Î½àÈ÷
- step16 ¥æ¥Ë¥Ã¥È¥Æ¥¹¥È¡Ê¾Êά¡Ë
- step17 ¥Õ¥¡¥ó¥¯¥·¥ç¥Ê¥ë¥Æ¥¹¥È¡Ê¾Êά¡Ë
- step18 ¥Ó¥å¡¼½ñ¤´¹¤¨Î㡧ÆþÎϤ·¤¿ÆâÍƤ¬'http://'¤Ç»Ï¤Þ¤ë¤È¤¤Ë¥ê¥ó¥¯¤È¤·¡¢ÆüÉÕyyyy-mm-dd hh:mm¤ËÊѹ¹
- step19 ¥â¥Ç¥ëÄɲÃÎã: źÉÕ¥Õ¥¡¥¤¥ë¤òɽ¤¹Attachment¥â¥Ç¥ë¤òÄɲä·¤Þ¤¹¡£
- step20 źÉÕ¥Õ¥¡¥¤¥ë¤Î¥¢¥Ã¥×¥í¡¼¥É
- step21 źÉÕ¥Õ¥¡¥¤¥ëɽ¼¨Éôʬ¤òÄɲÃ
step01 InstantRails¤Îµ¯Æ°¤Èirb
C:\InstantRails\InstantRails.exe¤ò¥À¥Ö¥ë¥¯¥ê¥Ã¥¯¤·¤Æµ¯Æ°¤·¤Þ¤¹¡£
DOS¥×¥í¥ó¥×¥È²èÌ̤ò³«¤¡¢irb¤ÇÁàºî¤·¤Æ¤ß¤Þ¤¹¡£
[I¤Î¥¢¥¤¥³¥ó] - [Rails Applications] - [Open Ruby Console Window]
³Æ¥³¥Þ¥ó¥É¤Î°ÕÌ£
¥³¥Þ¥ó¥É | Æ°ºî |
cmd /f:o | ctrl+f¤Ç¤Î¥Õ¥¡¥¤¥ë̾Êä´°¤ò͸ú¤È¤·¤Þ¤¹ |
ruby -v | ruby¤Î¥Ð¡¼¥¸¥ç¥ó¤òɽ¼¨¤·¤Þ¤¹ |
irb -ribr/completion | Êä´°µ¡Ç½Í¤ê¤Çirb¤òµ¯Æ°¤·¤Þ¤¹ |
pu[tab] | ÅÓÃæ¤Çtab¥¡¼¤ò²¡¤¹¤ÈÊä´°¤¬¸ú¤¤Þ¤¹ |
puts "Hello World!" | rubyʸ¤òÂǤĤȤ¹¤°¤Ë¼Â¹Ô¤µ¤ì¤Þ¤¹ |
exit | irb¤ò½ªÎ»¤·¤Þ¤¹ |
¤è¤¯»È¤¦Áàºî¤òrails_appsľ²¼¤Î¥Ð¥Ã¥Á¥Õ¥¡¥¤¥ë¤Ë¤·¤Þ¤·¤¿¡£
¥Ð¥Ã¥Á¥Õ¥¡¥¤¥ë̾ | ÆâÍÆ |
setenv.bat | cmd /f:o |
irb.bat | C:\InstantRails\ruby\bin\irb -rirb/completion |
step02 ¥×¥í¥¸¥§¥¯¥È¤Î¿·µ¬ºîÀ®
- InstantRails¤«¤éDOS¥×¥í¥ó¥×¥È¤ò³«¤¯
¥«¥ì¥ó¥È¥Õ¥©¥ë¥À¤ÏC:\InstantRails\rails_apps¤È¤Ê¤ê¤Þ¤¹¡£ - ¡Örails ¥×¥í¥¸¥§¥¯¥È̾¡×¤Ç¥×¥í¥¸¥§¥¯¥È¤ò¿·µ¬ºîÀ®
- ¡Öcd ¥×¥í¥¸¥§¥¯¥È̾¡×¤Ç¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤Ë°ÜÆ°
°Ê¹ß¤ÎÁàºî¤Ï¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤Ç¹Ô¤¤¤Þ¤¹¡£
step03 Mongrel web¥µ¡¼¥Ð¤Îµ¯Æ°
- ¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤Çruby script\server¤ò¼Â¹Ô¤·¤ÆMongrel web¥µ¡¼¥Ð¤òµ¯Æ°
ctrl+c¥¡¼¤ÇÃæÃǤǤ¤Þ¤¹¡£ - http://127.0.0.1:3000/¤ò¥Ö¥é¥¦¥¶¤Ç³«¤¯¤È¡¢¥×¥í¥¸¥§¥¯¥È¤ÎWeb¥Ú¡¼¥¸¤¬¸«¤é¤ì¤Þ¤¹¡£
step04 Aptana Studio RadRails
UTF-8¤Ë½é´üÀßÄê
- Aptana Studio¤òµ¯Æ°
- ʸ»ú¥³¡¼¥É¤òUTF-8¤Ë½é´üÀßÄê
[Window] - [Preferences] - [General] - [Workspace] - [Text file encoding]¤òUTF-8¤ÇÀßÄê¤ËÀßÄꤷ¤Þ¤¹¡£
Rails¥×¥í¥¸¥§¥¯¥È¤Î¥¤¥ó¥Ý¡¼¥È
- [File] - [Import] - [Other] - [Import As New Project] - [Next]
- ¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤òÀßÄê
- ¤½¤Î¤Þ¤ÞFinish
step05 ¥Ç¡¼¥¿¥Ù¡¼¥¹ÀßÄê
config\database.yml¤ò³«¤¤¤Æ¡¢É¬ÍפʾðÊó¤òÆþÎÏ
development: adapter: mysql database: ¥×¥í¥¸¥§¥¯¥È̾_development username: root password: host: localhost test: adapter: mysql database: ¥×¥í¥¸¥§¥¯¥È̾_test username: root password: host: localhost production: adapter: mysql database: ¥×¥í¥¸¥§¥¯¥È̾_production username: root password: host: localhost
MySQL¤Î´ûÄê¤Îʸ»ú¥³¡¼¥É¤òUTF-8¤ËÀßÄê
- [Instant Rails] - [I¥¢¥¤¥³¥ó] - [Configure] - [MySql]¤Çmy.ini¤ò³«¤¯
- ËöÈø¤Ë¼¡¤Î£²¹Ô¤òÄɲÃ
default-character-set=utf8 skip-character-set-client-handshake
step06 ¥Ç¡¼¥¿¥Ù¡¼¥¹ºîÀ®
sql¥³¥Þ¥ó¥É¤ÇºîÀ®¤¹¤ëÊýË¡
- phpMyAdminµ¯Æ°
[Instant Rails] - [I¥¢¥¤¥³¥ó] - [Configure] - [Database(via PhpMyAdmin)]
¼¡¤Îurl¤ò¥Ö¥é¥¦¥¶¤Ç³«¤¤¤Æ¤âOK¤Ç¤¹¡£
http://127.0.0.1/mysql/ - SQL¥¢¥¤¥³¥ó¤ò¥¯¥ê¥Ã¥¯
- create database ¥×¥í¥¸¥§¥¯¥È̾_development default charset utf8;
- ºï½ü¤¹¤ë¤È¤¤ÏphpMyAdmin¤ò»ÈÍÑ
- ´Ä¶¤òÊѤ¨¤¿DB¤òºîÀ®¤¹¤ë¤È¤¤Ï¡¢¥³¥Þ¥ó¥É¤Ç¼¡¤Î???Éôʬ¤òtest¤äproduction¤ËÊѹ¹
create database ¥×¥í¥¸¥§¥¯¥È̾_??? default charset utf8;
rake¥¿¥¹¥¯¤ÇºîÀ®¤¹¤ëÊýË¡
- lib\tasks\setup_db.rake¥Õ¥¡¥¤¥ë¤òºîÀ®
env = ENV['RAILS_ENV'] || 'development' database = "¥×¥í¥¸¥§¥¯¥È̾_#{env}" task :connect_db => [:environment] do ActiveRecord::Base.establish_connection( :adapter => 'mysql', :host => 'localhost', :username => 'root', :database => 'mysql' ) end task :setup_db => [:connect_db] do ActiveRecord::Schema.define do create_database database end end task :destroy_db => [:connect_db] do ActiveRecord::Schema.define do drop_database database end end
- ¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤Ç¡Örake setup_db¡×
- ºï½ü¤¹¤ë¤È¤¤Ï¡Örake destroy_db¡×
- ´Ä¶¤òÊѤ¨¤¿DB¤òºîÀ®¤¹¤ë¤È¤¤Ï¡Örake RAILS_ENV=test setup_db¡×¤Þ¤¿¤Ï¡Örake RAILS_ENV=production setup_db¡×
step07 migration¤Ë¤è¤ë¥Æ¡¼¥Ö¥ëºîÀ®
- ruby script\generate migration create_memos_table
- db\migrate\001_create_memos_table.rb¤òÊÔ½¸¡Ê¿ô»ú¤ÏÊѤï¤ë¾ì¹ç¤¬¤¢¤ê¤Þ¤¹¡Ë
class CreateTable < ActiveRecord::Migration def self.up create_table :memos do |t| t.column :created_at, :datetime t.column :text, :string, :limit => 256 t.column :location, :string, :limit => 64 end end def self.down drop_table :memos end end
- ¡Örake db:migrate¡×¤Ç¥Þ¥¤¥°¥ì¡¼¥È¤ò¼Â¹Ô
- migration¤Ë¤è¤ê¡¢¸åÆüÎ㤨¤Ðʸ»ú¿ô¤òÊѹ¹
ruby script\generate migration expand_location - db\migrate\002_expand_location.rb¤òÊÔ½¸¡Ê¿ô»ú¤ÏÊѤï¤ë¾ì¹ç¤¬¤¢¤ê¤Þ¤¹¡Ë
class ExpandLocation < ActiveRecord::Migration def self.up change_column :memos, :location, :string, :limit => 256 end def self.down change_column :memos, :location, :string, :limit => 64 end end
- ¡Örake db:migrate¡×¤Ç¥Þ¥¤¥°¥ì¡¼¥È¤ò¼Â¹Ô
- ¥Ð¡¼¥¸¥ç¥ó£±¤ËÌ᤹¤È¤¤Ï¡¢
rake db:migrate VERSION=1
step08 scaffold¤Ë¤è¤ê¥â¥Ç¥ë¤ª¤è¤Ó¥â¥Ç¥ë¤Ë¥¢¥¯¥»¥¹¤¹¤ë¾ì¤Î¥Ú¡¼¥¸¤òºîÀ®
¥×¥í¥¸¥§¥¯¥È¥ë¡¼¥È¤Ç¼¡¤Î¥³¥Þ¥ó¥É¤òÆþÎÏ
ruby script\generate scaffold ¥â¥Ç¥ë̾ ¢¨¥â¥Ç¥ë̾¤Ï¥¢¥Ã¥Ñ¡¼¥¥ã¥á¥ë¤Îñ¿ô·Á¤Ç¤¹
Î㤨¤Ð¡Öruby script\generate scaffold Memo¡×¤È¤·¤¿¾ì¹ç¡¢¼¡¤Î¥Ú¡¼¥¸¤¬ºîÀ®¤µ¤ì¤Þ¤¹
- http://127.0.0.1:3000/memos/list ... °ìÍ÷
- http://127.0.0.1:3000/memos/new ... ºîÀ®
- http://127.0.0.1:3000/memos/show/id ... ɽ¼¨
- http://127.0.0.1:3000/memos/edit/id ... ¹¹¿·
- http://127.0.0.1:3000/memos/destroy/id ... ºï½ü
¢¨¥³¥ó¥È¥í¡¼¥é¡¼¤¬memos¡¢¥¢¥¯¥·¥ç¥ó¤¬list, new, show, edit, destroy¤È¤Ê¤ê¤Þ¤¹
¼¡¤Î¥Õ¥¡¥¤¥ë¤¬ºî¤é¤ì¤Þ¤¹¡£
- app\models\memo.rb ... ¥â¥Ç¥ë
- app\controllers\memos_controller.rb ... ¥³¥ó¥È¥í¡¼¥é¡¼
- app\views\layouts\memos.rhtml ... Web¥¢¥×¥êÁ´ÂΤΥӥ塼
- app\views\memos\edit.rhtml ... edit¥¢¥¯¥·¥ç¥ó¤Î¥Ó¥å¡¼¡ÊÊÔ½¸¤Î¥Ó¥å¡¼¡Ë
- ...
step09 ¥â¥Ç¥ë¤Ø¤Î¸¡¾Ú½èÍýÄɲÃ
¥â¥Ç¥ë¤Ë¸¡¾Ú¥á¥½¥Ã¥É¤òÄɲä·¤Þ¤¹¡£
app\models\memo.rb
class Memo < ActiveRecord::Base validates_presence_of :text, :location validates_length_of :location, :maximum => 256 validates_length_of :¥Õ¥£¡¼¥ë¥É̾, :within 6..12 end
ºÇ¸å¤ÎÎã¤Ï6ʸ»ú°Ê¾å12ʸ»ú°Ê²¼¤Ç¤¹¡£
¥É¥Ã¥È¤ò£³¤Ã¤Ä¤È¤¹¤ë¤È¡Ö̤Ëþ¡×¤È¤Ê¤ê¤Þ¤¹¡£
step10 ·îÁªÂò¤Î¥Õ¥©¡¼¥à¤ò±Ñ¸ì¤«¤é¿ô»ú¤ËÊѹ¹
app\views\memos\_form.rhtml
... <%= datetime_select 'memo', 'created_at', :use_month_numbers => true %></p> ...
_form.rhtml¤«¤é¡Öcreated_at¡×¤Îɽ¼¨¤ò´Ý¤´¤Èºï½ü¤¹¤ë¤È¡¢¼«Æ°Åª¤Ë¥Ç¡¼¥¿ºîÀ®Æü»þ¤¬ÀßÄꤵ¤ì¤Þ¤¹¡£
step11 ¥¤¥ó¥¹¥È¡¼¥ë¤µ¤ì¤¿gem¤ÎAPI¥É¥¥å¥á¥ó¥È»²¾È
- DOS¥×¥í¥ó¥×¥È¤«¤égem_server¤ÈÆþÎÏ
- ¥Ö¥é¥¦¥¶¤Ç¼¡¤Îurl¤ò³«¤¯
http://127.0.0.1:8808/
Î㤨¤Ð¸¡¾Ú¤ÇÍѤ¤¤ë¥á¥½¥Ã¥É¤Ï¼¡¤ÎAPI¤ò»²¾È¤·¤Þ¤¹¡£
[activerecord rdoc] - [ActiveRecord::Validations::ClassMethods]
step12 Ruby-GetText¤Î¥¤¥ó¥¹¥È¡¼¥ë
- ¡Øgettext-1.10.0-mswin32.gem¡Ù¤òÆþ¼ê
- Instant Rails¤òµ¯Æ°¤·¡¢¤½¤³¤«¤éDOS¥×¥í¥ó¥×¥È¤ò³«¤¯
- ¥³¥Þ¥ó¥É¤òÆþÎϤ·¤Æ¥¤¥ó¥¹¥È¡¼¥ë
gem install C:\tmp\gettext-1.10.0-mswin32.gem
È÷¹Í¡§- ¡Ögem install gettext¡×¤ÈÆþÎϤ·¤Æ¡¢¥ª¥ó¥é¥¤¥ó¼èÆÀ¤·¤¿¥á¥Ë¥å¡¼¤«¤éÁªÂò¤¹¤ë¥¤¥ó¥¹¥È¡¼¥ëÊýË¡¤â¤¢¤ë¤½¤¦¤Ç¤¹¤¬¡¢¤Ê¤¼¤«¡ÖGemNotFoundException¡×¤È¤Ê¤ê¥¤¥ó¥¹¥È¡¼¥ë¤Ç¤¤Þ¤»¤ó¤Ç¤·¤¿¡£
- ¤³¤ì¤è¤ê¿·¤·¤¤¥Ð¡¼¥¸¥ç¥ó¤ÎRuby-GetText¤ÏRails 2.0¤Î¤ßÂбþ¤Ç¤¹
- ¥¤¥ó¥¹¥È¡¼¥ëÀ衧C:\InstantRails\ruby\lib\ruby\gems\1.8\gems\gettext-1.10.0-mswin32
- GNU GetText¤ò¥¤¥ó¥¹¥È¡¼¥ë
¡Øruby-gnome2-0.16.0-1-i386-mswin32.exe¡Ù¤òÆþ¼ê¤·¤Æ¥¤¥ó¥¹¥È¡¼¥ë¤·¤Þ¤¹¡£
¥¤¥ó¥¹¥È¡¼¥ëÀ衧C:\InstantRails\ruby\Ruby-GNOME2 - Instant Rails¤òºÆµ¯Æ°
step13 Ruby-GetText¤òÍøÍѤ¹¤ë¤è¤¦¥×¥í¥¸¥§¥¯¥È¤ËÀßÄê
- ¡Øgettext.rake¡Ù¤òlib\tasks¤Ë¥³¥Ô¡¼
- script\server¥³¥Þ¥ó¥É¤ò¼Â¹ÔÃæ¤Î¤È¤¤Ïctrl+c¥¡¼¤ÇÄä»ß
config¥Õ¥©¥ë¥ÀÆâ¤Î¥Õ¥¡¥¤¥ë¤òÊѹ¹¤¹¤ë¤È¤¤ÏºÆµ¯Æ°¤¬É¬Íפʤ¿¤á¤Ç¤¹¡£ - ¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤Ç¡Örake init_gettext¡×¤ò¼Â¹Ô
¸µ¤ËÌ᤹¤È¤¤Ï¡Örake void_gettext¡×¤ò¼Â¹Ô - ruby script\server¤ÇWeb¥µ¡¼¥ÐºÆµ¯Æ°
step14 Ruby-GetText¤òÍøÍѤ·¤ÆÆüËܸ첽
- ¥Ó¥å¡¼¤Î½ñ¤´¹¤¨Îã
app\views\memos\_form.rhtml¤ò¼¡¤Î¤è¤¦¤Ë½ñ¤´¹¤¨<label for="memo_created_at">Create at</label> ¢ <label for="memo_created_at"><%=h _('Create at')%></label>
app\controllers\memos_controller.rb¤ò¼¡¤Î¤è¤¦¤Ë½ñ¤´¹¤¨flash[:notice] = 'Memo was successfully created.' ¢ flash[:notice] = _('Memo was successfully created.')
- pot/po¥Õ¥¡¥¤¥ëºîÀ®
rake update_po
- po¥Õ¥¡¥¤¥ë¤Ëɽ¼¨Ê¸¸À¤òÄêµÁ
po\ja\memopad.po½ñ¤´¹¤¨Îã#: app/views/memos/_form.rhtml:4 msgid "Create at" msgstr "ºîÀ®ÆüÉÕ" ... #: app/controllers/memos_controller.rb:26 msgid "Memo was successfully created." msgstr "¥á¥â¤ÎºîÀ®¤ËÀ®¸ù¤·¤Þ¤·¤¿"
- mo¥Õ¥¡¥¤¥ëºîÀ®
rake make_mo
step15 ¥Æ¥¹¥È¶îÆ°³«È¯(TDD, Test Driven Development)¤Î½àÈ÷
- ¥Æ¥¹¥ÈÍÑDBºîÀ®
¼¡¤Î¤É¤Á¤é¤«¤ÇºîÀ®¤·¤Þ¤¹¡£- phpMyAdmin SQL¥³¥Þ¥ó¥ÉÆþÎϤÇ
create database ¥×¥í¥¸¥§¥¯¥È̾_test default charset utf8; - DOS¥×¥í¥ó¥×¥È ¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤Ç¤Î¥³¥Þ¥ó¥ÉÆþÎϤÇ
rake RAILS_ENV=test setup_db
- phpMyAdmin SQL¥³¥Þ¥ó¥ÉÆþÎϤÇ
- ¥Æ¥¹¥È¤ò¼Â¹Ô
¥×¥í¥¸¥§¥¯¥È¥Õ¥©¥ë¥À¤Ç¡Örake¡× - ÀÅŪ¥Æ¥¹¥È¥Ç¡¼¥¿ÍÑ°Õ
test\fixtures\memos.ymlone: id: 1 text: ¥Æ¥¹¥È¥Ç¡¼¥¿#1 location: ¼«Âð two: id: 2 text: ¥Æ¥¹¥È¥Ç¡¼¥¿#2 location: Ï©¾å
¥Æ¥¹¥È¥Ç¡¼¥¿ ¥×¥í¥°¥é¥àÀ¸À®Îãtoday: <%= Date.today.to_s %> created_at: <%= Time.now.to_formatted_s :db %>
- ưŪ¥Æ¥¹¥È¥Ç¡¼¥¿ÍÑ°Õ
test\functional\memos_controller_test.rb... def setup @controller = MemosController.new @request = ActionController::TestRequest.new @response = ActionController::TestResponse.new @first_id = memos(:one).id ¢«¤³¤Î¤è¤¦¤Ëfirst¤«¤éone¤Ë½ñ¤´¹¤¨ end ... def test_create num_memos = Memo.count ### post :create, :memo => {} ### ¢¤³¤Î¤è¤¦¤Ë¥Æ¥¹¥È¥Ç¡¼¥¿¤òÄêµÁ post :create, :memo => {:text => '¥Æ¥¹¥È¥Ç¡¼¥¿#3', :location => '¥Æ¥¹¥È'} assert_response :redirect assert_redirected_to :action => 'list' assert_equal num_memos + 1, Memo.count end ...
- ºÆ¤Ó¡Örake¡×¤Ç¥Æ¥¹¥È¤ò¼Â¹Ô¤·¡¢failures, errors¤¬£°¤È¤Ê¤ë¤³¤È¤ò³Îǧ
step16 ¥æ¥Ë¥Ã¥È¥Æ¥¹¥È¡Ê¾Êά¡Ë
¡Ø10Æü¤Ç¤ª¤Ü¤¨¤ëRuby on Rails¡Ù148¥Ú¡¼¥¸¤ò¤´»²¾È¤¯¤À¤µ¤¤¡£
step17 ¥Õ¥¡¥ó¥¯¥·¥ç¥Ê¥ë¥Æ¥¹¥È¡Ê¾Êά¡Ë
¡Ø10Æü¤Ç¤ª¤Ü¤¨¤ëRuby on Rails¡Ù164¥Ú¡¼¥¸¤ò¤´»²¾È¤¯¤À¤µ¤¤¡£
step18 ¥Ó¥å¡¼½ñ¤´¹¤¨Î㡧ÆþÎϤ·¤¿ÆâÍƤ¬'http://'¤Ç»Ï¤Þ¤ë¤È¤¤Ë¥ê¥ó¥¯¤È¤·¡¢ÆüÉÕyyyy-mm-dd hh:mm¤ËÊѹ¹
app\views\memos\list.rhtml
<h1><%=h _('Listing memos') %></h1> <table border="1"> <tr> <% for column in Memo.content_columns %> <th><%= column.human_name %></th> <% end %> </tr> <% for memo in @memos %> <tr> <% for column in Memo.content_columns %> <% if column.name == 'location' && memo.location.index('http://') == 0 %> ... ¤³¤Î¤è¤¦¤Ë½ñ¤´¹¤¨ <td><%= link_to h(memo.location), memo.location %></td> ... ¥ê¥ó¥¯¤Î½ñ¤Êý¤Ç¤¹¡£ ɽ¼¨ÆâÍƤÏh()¤Ç¥¨¥¹¥±¡¼¥×¤·¤Þ¤¹¡£ <% else %> <td><%=h memo.send(column.name) %></td> ... send()¤òÍѤ¤¤ë¤È¥Õ¥£¡¼¥ë¥É̾¤ò·è¤á¤º¤Ë¥ë¡¼¥×½èÍý¤Ç¤¤Þ¤¹¡£ Î㤨¤Ðcolumn.name¤¬'text'¤Î¤È¤¡¢memo.send(column.name)¤Ï memo.text¤È¤Ê¤ê¤Þ¤¹¡£ <% end %> <% end %> <td><%= link_to _('Show'), :action => 'show', :id => memo %></td> <td><%= link_to _('Edit'), :action => 'edit', :id => memo %></td> <td><%= link_to _('Destroy'), { :action => 'destroy', :id => memo }, :confirm => _('Are you sure?'), :method => :post %></td> </tr> <% end %> </table > <%= link_to _('Previous page'), { :page => @memo_pages.current.previous } if @memo_pages.current.previous %> <%= link_to _('Next page'), { :page => @memo_pages.current.next } if @memo_pages.current.next %> <br /> <%= link_to _('New memo'), :action => 'new' %>
¡¡¡¡¡¡¡¡¢
¤µ¤é¤Ë¥í¥¸¥Ã¥¯Éôʬ¤ò¥Ø¥ë¥Ñ¡¼¥á¥½¥Ã¥É¤Ë³°½Ð¤·¤·¡¢ÆüÉÕ¤â½ñ¤´¹¤¨
app\views\memos\list.rhtml
#pre{{
...
<% for column in Memo.content_columns %>
<td><%= format_column_value memo, column.name %></td>
<% end %>
...
}}
app\helpers\memos_helper.rb
#pre{{
module MemosHelper
# ¥á¥â¥ª¥Ö¥¸¥§¥¯¥È¤Î»ØÄꥫ¥é¥à¤òɽ¼¨ÍѤËÀ°·Á
def format_column_value(memo, colname)
if colname == 'location' && memo.location.index('http://') == 0
link_to h(memo.location), memo.location
elsif colname == 'created_at'
memo.created_at.strftime '%Y-%m-%d %H:%M' if memo.created_at # ÆüÉդ⤳¤Î¤è¤¦¤ËÀ°·Á
else
h memo.send(colname)
end
end
end
}}
step19 ¥â¥Ç¥ëÄɲÃÎã: źÉÕ¥Õ¥¡¥¤¥ë¤òɽ¤¹Attachment¥â¥Ç¥ë¤òÄɲä·¤Þ¤¹¡£
- ¥â¥Ç¥ë¤òÀ¸À®
C:\InstantRails\rails_apps\memopad>ruby script\generate model Attachment exists app/models/ exists test/unit/ exists test/fixtures/ create app/models/attachment.rb create test/unit/attachment_test.rb create test/fixtures/attachments.yml exists db/migrate create db/migrate/003_create_attachments.rb ... ¥â¥Ç¥ë¤òÀè¤ËºîÀ®¤¹¤ë¤È¡¢¤³¤Î¤è¤¦¤Ë¥Æ¡¼¥Ö¥ë ºîÀ®¡¦ºï½ü¤Îmigration¥Õ¥¡¥¤¥ë¤Ò¤Ê·Á¤¬ºî¤é¤ì¤Þ¤¹
- ¥Õ¥£¡¼¥ë¥É¤òÄêµÁ
db\migrate\003_create_attachments.rbclass CreateAttachments < ActiveRecord::Migration def self.up create_table :attachments do |t| t.column :memo_id, :integer # ¤³¤Î¤è¤¦¤ËÄɲä·¤Þ¤¹ t.column :name, :string, :limit => 64 t.column :size, :integer t.column :content_type, :string, :limit => 64 t.column :content, :mediumblob end end def self.down drop_table :attachments # Àè¤Ë¥â¥Ç¥ë¤òÀ¸À®¤¹¤ë¤È¡¢¤³¤Î¤è¤¦¤Ë¥Æ¡¼¥Ö¥ë # ºï½ü¤â¼«Æ°¤ÇÆþ¤Ã¤ÆÊØÍø¤Ç¤¹ end end
- migration¼Â¹Ô
rake db:migrate - »Ò¦¡§Attachment¥â¥Ç¥ë¤Ë¸¡¾Ú¡¢belongs_to¥á¥½¥Ã¥É¡¢¥á¥¿¥Ç¡¼¥¿¼èÆÀ¥á¥½¥Ã¥É¤òÄɲÃ
app\models\attachment.rb#pre{{
class Attachment < ActiveRecord::Base
# ¸¡¾Ú½èÍý
validates_presence_of :name, :size, :content_type, :content
# memo¥ª¥Ö¥¸¥§¥¯¥È¤Ë½ê°¤¹¤ë¤³¤È¤òÀë¸À
# ¤³¤ì¤Ë¤è¤Ã¤Æ¤³¤Î¥¯¥é¥¹¤«¤é¿ÆMemo¤Î°À¤¬»ÈÍѤǤ¤Þ¤¹
# memo¤Ïñ¿ô¤Ê¤Î¤Çñ¿ô·Á¤Ç¤¹¡£
belongs_to :memo
# ¥á¥¿¥Ç¡¼¥¿¥«¥é¥à̾
# źÉÕ¥Õ¥¡¥¤¥ë¼«¿È°Ê³°¡¢¤¹¤Ê¤ï¤ÁÍÆÎ̤¬¾®¤µ¤¤¥«¥é¥à¤Î¥«¥é¥à̾¤Ç¤¹¡£
METADATA_COLUMNS = 'id, memo_id, name, size, content_type'
# Memo¥ª¥Ö¥¸¥§¥¯¥È¤ò»ØÄꤷ¤Æ¡¢ÅºÉÕʪ¥á¥¿¥Ç¡¼¥¿ÇÛÎó¤Î¼èÆÀ¤Î¥á¥½¥Ã¥É
# @param ¿Æ¤ÎMemo¥ª¥Ö¥¸¥§¥¯¥È
# @return źÉÕʪ¥á¥¿¥Ç¡¼¥¿ÇÛÎó
# Î㡧arMeta = Attachment.metadatas memos(objMemo)
# puts arMeta.size
# if (arMeta.size > 0)
# puts arMeta[0].memo_id
# end
def self.metadatas(memo)
find :all, :select => METADATA_COLUMNS,
:conditions => ['memo_id = ?', memo.id]
end
# źÉÕʪid¤«¤é¥á¥¿¥Ç¡¼¥¿¼èÆÀ¤Î¥á¥½¥Ã¥É
# @param źÉÕʪid
# @return ¤½¤Îid¤ò»ý¤ÄźÉÕʪ¥á¥¿¥Ç¡¼¥¿
def self.metadata(id)
find id, :select => METADATA_COLUMNS
end
end
}} - ¿Æ¦¡§Memo¥â¥Ç¥ë¤Ëhas_many¥á¥½¥Ã¥É¤òÄɲÃ
#pre{{
class Memo < ActiveRecord::Base
validates_presence_of :text, :location
validates_length_of :location, :maximum => 256
# attachments¥ª¥Ö¥¸¥§¥¯¥È¤òÊ£¿ô»ý¤Á¡¢:select¤Ç»ØÄꤷ¤¿¥«¥é¥à¤Ë¥¢¥¯¥»¥¹¤Ç¤¤ë¤³¤È¤òÀë¸À
# attachments¤ÏÊ£¿ô¤Ê¤Î¤ÇÊ£¿ô·Á¤Ç¤¹¡£
# Â裲°ú¿ô¤Ë¤Ï:order¤Ê¤Éfind¥á¥½¥Ã¥É¤ÈƱ¤¸°ú¿ô¤ò»ØÄê¤Ç¤¤Þ¤¹¡£
has_many :attachments, :select => Attachment::METADATA_COLUMNS
def self.bookmarks
find :all, :conditions => "location like 'http://%'", :order => "created_at DESC"
end
end
}}
step20 źÉÕ¥Õ¥¡¥¤¥ë¤Î¥¢¥Ã¥×¥í¡¼¥É
¥Ó¥å¡¼½ñ¤´¹¤¨
app\views\memos\new.rhtml
#pre{{
<h1><%=h _('New memo')%></h1>
<% form_tag ({:action => 'create'}, :multipart => true) do %> ... multipart¤òÀßÄê
<%= render artial => 'form' %> ... ¤³¤ì¤Ï¸µ¤«¤é¤¢¤ë¥½¡¼¥¹¤Ç¡¢_form.rhtml¤òÆɤ߹þ¤ß¤Þ¤¹
<p>
<label for="file"><%=h _('Attachment') %><label><br /> ... ¥é¥Ù¥ë
<%= file_field_tag 'file' %> ... ¥Õ¥¡¥¤¥ë̾ÆþÎϤȻ²¾È¥Ü¥¿¥ó
</p>
<%= submit_tag _("Create") %>
<% end %>
<%= link_to _('Back'), :action => 'list' %>
}}
źÉÕ¥Õ¥¡¥¤¥ëÆþ¤ê¤Ç¥â¥Ç¥ëÀ¸À®
app\controllers\memos_controller.rb
#pre{{
...
def create
@memo = Memo.new(params[:memo])
if params[:file] && params[:file].respond_to?(:original_filename)
# create¥¢¥¯¥·¥ç¥ó¤Ëfile¥Ñ¥é¥á¡¼¥¿¤¬Æþ¤Ã¤Æ¤¤¤¿¤È¤¤Î½èÍý
@memo.attachments.create :name => params[:file].original_filename,
:size => params[:file].length,
:content_type => params[:file].content_type,
:content => params[:file].read
end
if @memo.save
flash[:notice] = _('Memo was successfully created.')
redirect_to :action => 'list'
else
render :action => 'new'
end
end
...
}}
step21 źÉÕ¥Õ¥¡¥¤¥ëɽ¼¨Éôʬ¤òÄɲÃ
¥ë¡¼¥Æ¥£¥ó¥°¤ÎÀßÄê
config\routes.rb
¼¡¤ÎÀèƬ£²¹Ô¤òÄɲÃ
map.connect ':controller/:action/:id/:filename.:fileext' map.connect ':controller/:action/:id/:filename' map.connect ':controller/:action/:id.:format' map.connect ':controller/:action/:id'
¥á¥â¤Îɽ¼¨¤ËźÉÕ¥Õ¥¡¥¤¥ë¥ê¥¹¥Èɽ¼¨
app\views\memos\show.rhtml
#pre{{
...
<% if !@memo.attachments.empty? %>
<b><%=h _('Attachments') %>:</b>
<table border="1">
<tr>
<% for column in @memo.attachments.content_columns %>
<th><%= column.human_name %></th>
<% end %>
</tr>
<% for attachment in @memo.attachments %>
<tr>
<% for column in @memo.attachments.content_columns %>
<td><%= format_column_value attachment, column.name %></td>
<% end %>
</tr>
<% end %>
</table>
<% end %>
...
}}
¥í¥¸¥Ã¥¯Éôʬ¤Ï¥Ø¥ë¥Ñ¡¼¤Ëµ½Ò
app\helpers\memos_helper.rb
#pre{{
module MemosHelper
# ¥ª¥Ö¥¸¥§¥¯¥È¤Î»ØÄꥫ¥é¥à¤òɽ¼¨ÍѤËÀ°·Á
def format_column_value(ar, colname)
if Memo === ar
format_memo_column_value ar, colname
elsif Attachment === ar
format_attachment_column_value ar, colname
end
end
# ¥á¥â¥ª¥Ö¥¸¥§¥¯¥È¤Î»ØÄꥫ¥é¥à¤òɽ¼¨ÍѤËÀ°·Á
def format_memo_column_value(memo, colname)
...
end
# źÉÕ¥ª¥Ö¥¸¥§¥¯¥È¤Î»ØÄꥫ¥é¥à¤òɽ¼¨ÍѤËÀ°·Á
def format_attachment_column_value(atch, colname)
if colname == 'content'
if atch.content_type =~ /image\/(x-|p)?(jpe?g|png|gif)/
image_tag url_for(:action => 'file', :id => atch.id, :filename => atch.name), :alt => h(atch.name)
else
link_to h(atch.name), {:action => 'file', :id => atch.id, :filename => atch.name}
end
else
h atch.send(colname)
end
end
...
end
}}
file¥¢¥¯¥·¥ç¥ó¤ÎÄɲÃ
app\controllers\memos_controller.rb
#pre{{
...
def file
attachment = Attachment.find params[:id]
# return if forbidden?(attachment.memo)
filename = (params[:fileext]) ? "#{params[:filename]}.#{params[:fileext]}" : params[:filename]
if filename != attachment.name
render :file => File.join(RAILS_ROOT, 'public', '404.html'), :status => 404, :layout => true
else
disposition = 'inline'
send_data attachment.content, :filename => attachment.name, :type => attachment.content_type, isposition => disposition
# cache_page if attachment.memo.public_memo
end
end
...
}}
źÉÕ¥Õ¥¡¥¤¥ë: step04_RadRailsImport03.gif 745·ï [¾ÜºÙ] step04_RadRailsImport02.gif 793·ï [¾ÜºÙ] step04_RadRailsUTF8.gif 709·ï [¾ÜºÙ] step04_RadRailsImport01.gif 774·ï [¾ÜºÙ] step01_InstantRails.gif 365·ï [¾ÜºÙ] step01_irb.gif 772·ï [¾ÜºÙ]