Editor article
FCKeditor 

#undefined method `relative_url_root' for #<ActionController::CgiRequest:0x23b026>
#There is been a Fix for Rails 2.2

#in the file app/controllers/fckeditor_controller.rb 
#look for 
uploaded = request.relative_url_root.to_s+"#{UPLOADED}/#{params[:Type]}"

#replace it with this 
uploaded = 
ActionController::Base.relative_url_root.to_s+"#{UPLOADED}/#{params[:Type]}"

#similarly in the file lib/fckeditor.rb 
#replace 
js_path = "#{request.relative_url_root}/javascripts" 
#with 
js_path = "#{ActionController::Base.relative_url_root}/javascripts"


http://rubyforge.org/projects/fckeditorp

Decompression to the vendor \ plugins, rename FCKeditor 

>rake fckeditor:install


Usage 
#view中添加
<%= javascript_include_tag :fckeditor %>

#textarea替换为
<%= fckeditor_textarea("book", "desc", 
{ :toolbarSet => 'Simple', :width => '100%', :height => '200px' }) %>


Paging
will_paginate 

>gem sources -a http://gems.github.com
>gem install mislav-will_paginate


Usage
http://github.com/mislav/will_paginate/tree/master
http://errtheblog.com/posts/56-im-paginating-again

Picture
RMagick 

http://rubyforge.org/projects/rmagick/

Rmagick-win32 download
Install windows-dll.exe & gem

Verification Code Rmagick 

#ImageMagick_root/config/type.xml, 注释掉
<include file="type-ghostscript.xml" />


http://world.javaeye.com/blog/40766

* If out of ruby.exe compiler errors reported Backgrounds can not read pictures, for an earlier version of RMagick-2.7.1-ImageMagick-6.4.5-3-Q8.zip

Upload
file_column 

#rails2.2 uninitialized constant FileColumn::ClassMethods::Inflector 

#找到 vender/plugins/file_column/lib/file_column.rb 的 619行
my_options = FileColumn::init_options(options, 
Inflector.underscore(self.name).to_s, 
attr.to_s) 

#改成 
my_options = FileColumn::init_options(options,
ActiveSupport::Inflector.underscore(self.name).to_s,
attr.to_s) 

#in the file lib/file_column_helper.rb 找到
url << request.relative_url_root.to_s << "/"
#改成
url << ActionController::Base.relative_url_root.to_s << "/"


http://www.kanthak.net/opensource/file_column

Usage

Decompression to the vendor \ plugins;

Modify vendor \ plugins \ file_column \ lib \ file_column_helper.rb

Ways url_for_file_column ri @ request into a request

Modify 

#找到vendor\plugins\file_column\lib\file_column.rb 的
FileUtils.mv(local_file_path, new_local_file_path) 
unless new_local_file_path == local_file_path

#改成
FileUtils.mv(local_file_path, new_local_file_path) 
unless new_local_file_path.downcase == local_file_path.downcase

* vendor under the plug-ins are required to amend the entry into force restart Mongrel. 

#model里添加：
validates_format_of :image,
  :with=>/^.*(.jpg|.JPG|.gif|.GIF)$/,
  :message => "只允许上传JPG或GIF"

file_column :image, :magick => {
  :versions => { "thumb" => "50x50", "medium" => "640x480>" }
}

#_form里：
<%= file_column_field 'entry', 'image' %>

#show里：
<%= image_tag url_for_file_column 'entry', 'image' ,'thumb'%>