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copied!<p>OK.</p> <h1>Step 1</h1> <p>add <code>gem 'carrier wave'</code> to you Gemfile</p> <h1>Step 2</h1> <p>save the code to <code>/lib/flash_session_cookie_middleware.rb</code> </p> <pre><code>require 'rack/utils' class FlashSessionCookieMiddleware def initialize(app, session_key = '_session_id') @app = app @session_key = session_key end def call(env) if env['HTTP_USER_AGENT'] =~ /^(Adobe|Shockwave) Flash/ req = Rack::Request.new(env) env['HTTP_COOKIE'] = [ @session_key, req.params[@session_key] ].join('=').freeze unless req.params[@session_key].nil? env['HTTP_ACCEPT'] = "#{req.params['_http_accept']}".freeze unless req.params['_http_accept'].nil? end @app.call(env) end end </code></pre> <h1>Step3</h1> <p>edit <code>session_store.rb</code> add the code to the end of file</p> <pre><code>Rails.application.config.middleware.insert_before( ActionDispatch::Session::CookieStore, FlashSessionCookieMiddleware, Rails.application.config.session_options[:key] ) </code></pre> <h1>Step4</h1> <p>Download jquery.uploadify.js from <a href="http://www.uploadify.com/wp-content/uploads/uploadify-v2.1.4.zip" rel="nofollow noreferrer">Uploadify</a> and unzip it.</p> <h1>Step5</h1> <ol> <li>Copy <code>jquery.uploadify.v2.1.4.min.js</code> & <code>swfobject.js</code> to <code>/app/assets/javascripts</code> if you use Rails3.1 or later, to <code>/public/javascripts</code> if you use Rails 3.0 or before version.</li> <li>Copy <code>uploadify.swf</code> and <code>cancel.png</code> to <code>/app/assets/images/</code> or <code>/public/images</code></li> <li>Copy <code>uploadify.css</code> to <code>/app/assets/stylesheets/</code> or <code>/public/stylesheets</code></li> </ol> <h1>Step6</h1> <p>Edit your application.js, insert below code to it</p> <pre><code>//= require swfobject //= require jquery.uploadify </code></pre> <h1>Step7</h1> <p>In you upload page, add this</p> <pre><code><input id="uploadify" name="uploadify" type="file" /> </code></pre> <h1>Step8</h1> <p>add this code to you upload page</p> <pre><code>$(document).ready(function() { <% key = Rails.application.config.session_options[:key] %> var uploadify_script_data = {}; var csrf_param = $('meta[name=csrf-param]').attr('content'); var csrf_token = $('meta[name=csrf-token]').attr('content'); uploadify_script_data[csrf_param] = encodeURI(encodeURIComponent(csrf_token)); uploadify_script_data['<%= key %>'] = '<%= cookies[key] %>'; $('#uploadify').uploadify({ uploader : '/assets/uploadify.swf', script : '/photos', cancelImg : '/images/cancel.png', auto : true, multi : true, removeCompleted : true, scriptData : uploadify_script_data, onComplete : function(event, ID, fileObj, doc, data) { } }); }); </code></pre> <h1>Step9</h1> <p>Write your controller like this</p> <pre><code>def create @photo = Photo.new(:image => params[:Filedata]) @photo.save end </code></pre>

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