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vendorÊý¾Ý¿â±íÓÐ×Ö¶Îservice_category varchar(100)
<% form_for :vendor, @vendor, :url => sellers_path do |f| %>
  <%= f.select(:service_category,
                   ["Painting","Plumbing","Decor"], {}, {:multiple => true, :size => 3}) %>
  <%= f.submit "Register"%>
<% end %>
url Ö¸¶¨µ½Äĸöcontrol  action£¬ÓõÄÊÇrails rest¼¼Êõ
µ«ÊÇ´æÈëÊý¾Ý¿â±íµÄÊÇ--\painting --Ö®ÀàµÄ×Ö·û´®£¬²»·ûºÏÒªÇó
ËùÒÔÔÚvendor modelÖмÓÈë
def service_category=(values)
    if !values.nil?
          write_attribute('service_category', values.join(','))
    end
 end
 def service_category
    if !read_attribute('service_category').nil?
          read_attribute('service_category').split(',')
    end
 end
´æÈëÊý¾Ý¿âÖеÄÊÇpainting£¬plumbing
ÔÚupdate actionÖÐ@vendor = Vendor.find(id)
ÔÚupdate Ò³Ãæ<%= f.select(:service_category,
                   ["Painting","Plumbing","Decor"], {}, {:multiple => true, :size => 3}) %>¾ÍÄÜÈ¡³öÊý¾Ý¿âÖжÔÓ¦µÄÊý¾Ý


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C++0x³¢ÏÊ ÓÃlambda±í´ïʽģÄâRubyµÄ¹ý³Ì¶ÔÏó

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Ô¤¼ÆÓÚÃ÷Äêµ×ÍÆ³öµÄбê×¼C++0x£¬Ëä˵ÒѽӽüÊչٽ׶Σ¬È´ÈÔÓÐÈô¸ÉÓдý½ÓÄɵÄÐÂÌá°¸±»Ìá³ö¡£ÓÈÆäÖµµÃ¹Ø×¢µÄÊÇ£¬Óëlambda±í´ïʽÒÔ¼°¾Ö²¿º¯ÊýÏà¹ØµÄÌá°¸“Unified Function Syntax£¨Í³Ò»µÄº¯ÊýÓï·¨£©”£¬¾¡¹Ü²»Êܱê׼ίԱ»á´ý¼û£¨Á½Äê¼äÀú¾­ËÄ´ÎÑÓ³Ù±í¾ö£¬Á½´Î²»Óèͨ¹ý£©£¬ÈÔÈ»“ÍçÇ¿µØ”ÍÆ³öÁ ......

×Ô¶¯»¯²âÊÔ֮·£¨Èý£© rubyÀïµÄgetÓëset·½·¨

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class Person
 
  def initialize( name,age=18 )
    @name = name
    @age = age
    @motherland = "China"
  end
 
  def talk
    puts "my name is "+@name+", age is "+@age.to_s
 &n ......

linux(ubuntu)ÏÂruby¿ª·¢»·¾³´î½¨

env setup
linux(ubuntu)ÏÂruby¿ª·¢»·¾³´î½¨£¬°üÀ¨Ò»Ð©³£¼ûÎÊÌâ½â¾ö
×¢Ò⣬±¾ÎÄÖ»ÊÇÎÒÔڴrubyѧϰ»·¾³Ê±µÄһЩ±Ê¼Ç£¬ÒòΪÊÇÓÃgedit±à¼­µÄ£¬ËùÒÔ¸ñʽ»¯²»ÊǺܺã¬ÁíÍ⣬ֻÊDZ¸Íü¶øÒÑ¡£
2010.1.19
1. install ruby
$ tar xzf ruby-1.8.7-p248.tar.gz
$ mv ruby-1.8.7-p248 ruby187
$ cd ruby187/
$ ./configure ......

Ruby Ò»²½²½°²×°


http://www.gayathri-frenzy.com/technology/ruby-on-rails
I kept thinking for a while on what do I have next in the store
Here we go “Ruby on Rails”
Ruby on Rails, often shortened to Rails or RoR, is an open source web application framework for the Ruby Programming language.Ruby is a ......
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