xiaoqiu369

注:rails的版本是2.0以上.

1.在application.rb里添加分頁信息方法:

1 def page_for(result,options={})
2 
3       default_options = {:per_page => 10}   
4        options = default_options.merge options   
5        pages = WillPaginate::Collection.new(options[:page],options[:per_page],result.total_hits)   
6         return pages
7     
8     end

2.users_controller.rb里添加search方法:
3.view頁面:

按照網(wǎng)上傳統(tǒng)的方法安裝幾次都沒有成功.最后只有下載gem文件安裝
1.下載ferret-0.11.6-mswin32.gem文件
2.用gem 安裝:gem install ferret-0.11.6-mswin32 --local
3.gem install acts_as_ferret
4.從網(wǎng)上下載ferrect_ext.so文件,copy到 ferret-0.11.5-x86-mswin32\lib目錄（跟ferret.rb同一目錄）

如果直接下載源碼安裝運(yùn)行ruby setup.rb.會(huì)出現(xiàn)"the c extensions could not be installed"的錯(cuò)誤


手動(dòng)安裝plugins

將下載的源文件放到vendor/plugins里面,進(jìn)入該目錄,運(yùn)行ruby install.rb

出現(xiàn)的問題:

=> Booting WEBrick...

c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:442:in `load_missing_constant': uninitialized constant Ferret::Analysis::Analyzer (NameError)

        from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:77:in `const_missing'

        from E:/rorapp/demo/vendor/plugins/acts_as_ferret/lib/ferret_extensions.rb:17

        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'

        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'

        from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:155:in `require'

        from E:/rorapp/demo/vendor/plugins/acts_as_ferret/lib/acts_as_ferret.rb:28

        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'

        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'

         ... 25 levels...

        from c:/ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/server.rb:49

        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'

        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'

        from script/server:3

 解決辦法就是把上面安裝完成ferret后的文件里找到ferrect_ext.so將這個(gè)文件放到lib里面.這個(gè)是200多K,而從網(wǎng)上下載的才30K.導(dǎo)致上面的問題.

1.驗(yàn)證碼:recaptcha
gem install --source http://www.loonsoft.com/recaptcha/pkg/ recaptcha

2.搜索:acts_as_searchable是一個(gè)Rails插件，它依賴于Hyper Estraier這個(gè)獨(dú)立的搜索引擎所提供的索引和搜索服務(wù) 
            ferret gem install ferret -v=0.11.5 --platform mswin32  
3.pdf:
gem install pdf-writer  

4.測(cè)試:
RSpec+Mocha

5.桌面應(yīng)用
gem install anvil

使用插件

1/ will_paginate

    http://groups.google.com/group/will_paginate

 

這個(gè)資料很多，不多說

 

2/ squirrel

    下載：http://github.com/thoughtbot/squirrel/tree/master

 

主要實(shí)現(xiàn) 動(dòng)態(tài)條件的查詢，擴(kuò)展ActiveScaffold find方法。支持跨Model查詢，具體見

    說明：http://thoughtbot.com/projects/squirrel

 

貼段主要實(shí)現(xiàn)代碼

#controller:

def index

#######################################################

#下面代碼可以按實(shí)際情況提取到Model或其他地方；方便測(cè)試我直接放在index下

#######################################################
    @permissions = Permission.find(:all) do
      paginate :page => params[:page]||1,:per_page=>5
      any do
        name == params[:permission][:name] unless params[:permission].nil?
        code == params[:permission][:code] unless params[:permission].nil?
        permit_date == params[:permission][:permit_date] unless params[:permission].nil?
        contact.company == params[:contact][:company] unless params[:contact].nil?
      end
    end
 #######################################################
    respond_to do |format|
      format.html # index.rhtml
      format.xml  { render :xml => @permissions.to_xml }
    end
  end

 

 

#index--view

 

<% field_set_tag do %>
  <% form_for :permission, :url=>permissions_url,:method=>:get,:html=>{:method=>:get} do |f| %>
    公司名稱 :<%= text_field_with_auto_complete :contact, :company,{},{:method=>:get}%>  <br>
    證書類型 :<%= text_field_with_auto_complete :permission, :name,{},{:method=>:get}%>  <br>
    證書編號(hào) :<%= text_field_with_auto_complete :permission, :code,{},{:method=>:get}%>  <br>
    授與日期 :<%= text_field_with_auto_complete :permission, :permit_date,{},{:method=>:get}%>  <br>
    <%= submit_tag '查詢'  %>
   <% end %>
<%  end %>

 

...

 

<div class="digg_pagination">
  <div clas="page_info">
    <%= page_entries_info @permissions %>
  </div>
  <%= will_paginate @permissions, :container => false %>
</div>

    1.we receive a new request for a page to our rails application.
    2.Rails routes this request to a controller for processing.
    3.Our controller interacts with the models in our application to gather the necessary data
    4.Our model may retrive or insert data to our database
    5.Once our models have generated or retrived correct information,they return the data back to the collection
    6.The controller collects all of the data it's received from models and selects a view template to render
    7.The view template is rendered using  the data that the collection gathered and handed to  the web server
    8.An html page is returned to the user.

按照慣例,還是打印出Hello world.

/app/controllers/stories_controllers.rb:

class StoriesController<ActionControllers::Base
    def index
        @varies="hello world"
    end
end

/views/stories/index.html.erb:

<%=@varies%>

/config/routes.rb

ActionController::Routing::Routes.draw do |map|
    map 'stories',:controller=>'stories',:action=>'index'
end

啟動(dòng)服務(wù)在IE中打開:
http://localhost:3000/stories
OK