toostupid

2007-04-01

RMagick and file-column for windows

1. Download RMagick For Win

2. Unzip the file to local folder.
#gem install rmagick --local

3. Install file-column as plugin
#ruby script/plugin install http://opensvn.csie.org/rails_file_column/plugins/file_column/trunk

Code 1:

class Entry < ActiveRecord::Base
          file_column :image, :magick => {
                      :versions => { "thumb" => "50x50", "medium" => "640x480>" }
          }
end

'image'是entry这个表的一个字段,储存文件的路径。

上载 :

显示:
<%= image_tag url_for_file_column 'entry', 'image' ,'thumb'%>
<%= image_tag url_for_file_column 'entry', 'image' ,'medium'%>

_form.html:
<%= file_column_field 'entry', 'image' %>p>

show.html:
<%= start_form_tag 'create',:multipart => true%>
<%= render :partial => 'form' %>
  <%= submit_tag "Create" %>
<%= end_form_tag %>

"thumb" => "50x50" : 表示默认宽度50，高度自适应
"thumb" => "50x50!" : "!"表示强制50*50
"thumb" => "50x50>" : ">"表示如果图片本来就小，就不用放大
file_column :image, :store_dir=>"你想要存图片的目录"