使用Rails插件Paperclip上传视频到亚马逊 S3服务
云服务里亚马逊的S3 和 EC2比较常用的，这里是介绍一个上传插件和S3一起使用的例子。
创建model
配置S3相关的配置
添加插件
执行
Controller和view会如下：
配置flash player显示视频
这样你就可以在http://localhost:3000/videos进行上传操作了
关于开发环境和生产环境
通过在配置yml来区分开发和生产环境往往是不错的办法
当然，这里有一个前提，就是有一个settings.yml用来加载load_config.rb file
设置如下：
出处
创建model
#video.rb
class Video < ActiveRecord::Base
# Paperclip
# http://www.thoughtbot.com/projects/paperclip
has_attached_file :video,
:storage => :s3,
:s3_credentials => "#{RAILS_ROOT}/config/s3.yml",
:path => ":attachment/:id/:style/:basename.:extension",
:bucket => 'yourbucketname'
# Paperclip Validations
validates_attachment_presence :video
validates_attachment_content_type :video, :content_type => ['application/x-shockwave-flash', 'application/x-shockwave-flash', 'application/flv', 'video/x-flv']
end
配置S3相关的配置
#config/s3.yml access_key_id: YOURSECRETACCESSID secret_access_key: YOUR-secRE/TACCe\ssKEy
添加插件
Rails::Initializer.run do |config| ... config.gem 'right_aws', :version => '1.9.0' ... end
执行
sudo rake gems:install sudo rake gems:unpack
Controller和view会如下：
class VideosController < ApplicationController
def index
@videos = Video.find :all
end
def new
@video = Video.new
end
def create
@video = Video.new(params[:video])
if @video.save
flash[:notice] = 'Video has been uploaded'
redirect_to :action => 'index'
else
render :action => 'new'
end
end
def show
@video = Video.find(params[:id])
end
end
# index view
<h2>Videos (<%= link_to 'Create new', new_video_path %>)</h2>
<ul>
<% for video in @videos %>
<li><%= video.video_file_name %> <%= video.video.url %> <%= link_to 'view', video_path(video) %></li>
<% end %>
</ul>
# new view
<% form_for(@video, :html => {:multipart => true, :class => 'styledform' }) do |f| %>
<%= f.error_messages %>
<p>
<%= f.label :video %><br />
<%= f.file_field :video %>
</p>
<p>
<%= f.submit %> or <%= link_to 'Cancel', videos_path %>
</p>
<% end %>
# show view
<div id="player">
You need to have <%= link_to 'Flash Player', 'http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash' %> installed to display this video
</div>
<script type="text/javascript">
var so = new SWFObject('/flash/player.swf', 'mpl', '480', '360', '8');
so.addParam('allowscriptaccess', 'always');
so.addParam('allowfullscreen', 'true');
so.addVariable('height', '360');
so.addVariable('width', '480');
so.addVariable('file', '<%= @video.video.url %>');
so.write('player');
</script>
配置flash player显示视频
- 下载JW FLV MEDIA PLAYER (mediaplayer.zip）
- 复制player.swf到public/flash/player.swf
- 复制swfobject.js 到 public/javascript/swfobject.js
- 修改配置application.html.erb加载swfobject.js
<head> <meta http-equiv="content-type" content="text/html;charset=UTF-8" /> <title><%= SITE_NAME %></title> <%= stylesheet_link_tag 'application' %> <%= javascript_include_tag :defaults %> <%= javascript_include_tag 'swfobject' %> </head>
这样你就可以在http://localhost:3000/videos进行上传操作了
关于开发环境和生产环境
通过在配置yml来区分开发和生产环境往往是不错的办法
当然，这里有一个前提，就是有一个settings.yml用来加载load_config.rb file
设置如下：
APP_CONFIG = YAML.load_file(“#{RAILS_ROOT}/config/settings.yml”)[RAILS_ENV].symbolize_keys
#In config/settings.yml development: &non_production_settings site_url: http://localhost:3000 site_name: Site admin_email: [email protected] bucket: yourappdevelopment test: <<: *non_production_settings production: site_url: http://domain.com site_name: Site admin_email: [email protected] bucket: yourappproduction
#In video.rb
class Video < ActiveRecord::Base
# Paperclip
# http://www.thoughtbot.com/projects/paperclip
has_attached_file :video,
:storage => :s3,
:s3_credentials => "#{RAILS_ROOT}/config/s3.yml",
:path => ":attachment/:id/:style/:basename.:extension",
:bucket => APP_CONFIG[:bucket]
end
出处