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:

按照網上傳統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行ruby setup.rb.會出現"the c extensions could not be installed"的錯誤


手動安裝plugins

將下載的源文件放到vendor/plugins里面,進入該目錄,運行ruby install.rb

出現的問題:

=> 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將這個文件放到lib里面.這個是200多K,而從網上下載的才30K.導致上面的問題.

1.驗證碼:recaptcha
gem install --source http://www.loonsoft.com/recaptcha/pkg/ recaptcha

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

4.測試:
RSpec+Mocha

5.桌面應用
gem install anvil

使用插件

1/ will_paginate

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

 

這個資料很多，不多說

 

2/ squirrel

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

 

主要實現 動態條件的查詢，擴展ActiveScaffold find方法。支持跨Model查詢，具體見

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

 

貼段主要實現代碼

#controller:

def index

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

#下面代碼可以按實際情況提取到Model或其他地方；方便測試我直接放在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 :<%= 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.