图片上传插件Acts As Attachment

开始也是下载
在项目目录下面运行

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##?app/controllers/dvd_covers_controller.rb ??class?DvdCoversController?<?ApplicationController ?? ??def?index ?? ????@dvd_covers?=?DvdCover.find(:all) ?? ??end?? ????def?new?? ????@dvd_cover?=?DvdCover.new?? ??end?? ????def?show ?? ????@dvd_cover?=?DvdCover.find?params[:id] ?? ??end?? ????def?create ?? ????@dvd_cover?=?DvdCover.create!?params[:dvd_cover] ?? ????redirect_to?:action?=>?'show',?:id?=>?@dvd_cover?? ??rescue?ActiveRecord::RecordInvalid ?? ????render?:action?=>?'new'?? ??end?? end?? ??##?app/views/dvd_covers/index.rhtml ?? <h1>DVD?Covers</h1> ????<ul> ??<%?@dvd_covers.each?do?|dvd_cover|?-%> ?? ??<li><%=?link_to?dvd_cover.filename,?:action?=>?'show',?:id?=>?dvd_cover?%></li> ?? <%?end?-%> ?? </ul> ????<p><%=?link_to?'New',?:action?=>?'new'?%></p> ?? ??##?app/views/dvd_covers/new.rhtml ?? <h1>New?DVD?Cover</h1> ????<%?form_for?:dvd_cover,?:url?=>?{?:action?=>?'create'?},?:html?=>?{?:multipart?=>?true?}?do?|f|?-%> ?? ??<p><%=?f.file_field?:uploaded_data?%></p> ?? ??<p><%=?submit_tag?:Create?%></p> ??<%?end?-%> ?? ??##?app/views/dvd_covers/show.rhtml ?? <p><%=?@dvd_cover.filename?%></p> ?? <%=?image_tag?@dvd_cover.public_filename,?:size?=>?@dvd_cover.image_size?%>??