upload img with carrierwave #41

.gitignore

@@ -12,6 +12,7 @@ public/assets/
 unicorn/
 # Ignore the default SQLite database.
 db/*.sqlite3
+config/settings.yml
 
 # Ignore all logfiles and tempfiles.
 log/*.log

Gemfile

@@ -9,6 +9,11 @@ gem 'mysql2'
 gem "cancan"
 gem 'unicorn'
 gem 'redcarpet'
+gem 'carrierwave', "~> 0.6.2"
+gem 'carrierwave-upyun', '~> 0.1.6'
+gem 'rmagick'
+gem 'mime-types'
+gem 'settingslogic'
 
 
 # Gems used only for assets and not required

Gemfile.lock

@@ -40,6 +40,12 @@ GEM
       net-sftp (>= 2.0.0)
       net-ssh (>= 2.0.14)
       net-ssh-gateway (>= 1.1.0)
+    carrierwave (0.6.2)
+      activemodel (>= 3.2.0)
+      activesupport (>= 3.2.0)
+    carrierwave-upyun (0.1.6)
+      carrierwave (>= 0.5.7)
+      rest-client (>= 1.6.7)
     coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
       railties (~> 3.2.0)
@@ -104,11 +110,15 @@ GEM
     rdoc (3.12)
       json (~> 1.4)
     redcarpet (2.1.1)
+    rest-client (1.6.7)
+      mime-types (>= 1.16)
+    rmagick (2.13.1)
     sass (3.2.1)
     sass-rails (3.2.5)
       railties (~> 3.2.0)
       sass (>= 3.1.10)
       tilt (~> 1.3)
+    settingslogic (2.0.8)
     sprockets (2.1.3)
       hike (~> 1.2)
       rack (~> 1.0)
@@ -137,12 +147,17 @@ DEPENDENCIES
   bootstrap-sass
   cancan
   capistrano
+  carrierwave (~> 0.6.2)
+  carrierwave-upyun (~> 0.1.6)
   coffee-rails (~> 3.2.1)
   jquery-rails
+  mime-types
   mysql2
   rails (= 3.2.8)
   redcarpet
+  rmagick
   sass-rails (~> 3.2.3)
+  settingslogic
   therubyracer
   uglifier (>= 1.0.3)
   unicorn

app/controllers/upyun_images_controller.rb

@@ -0,0 +1,21 @@
+class UpyunImagesController < ApplicationController
+  def new
+    @upyun_image = UpyunImage.new
+  end
+
+  def show
+    @img = UpyunImage.find(params[:id])
+  end
+
+  def create
+    file = params[:upyun_image][:asset]
+    image = UpyunImage.new(params[:upyun_image])
+    image.filename = file.original_filename
+    image.user = current_user
+    if image.save
+      redirect_to upyun_image_path(image)
+    else
+      redirect_to new_upyun_image_path
+    end
+  end
+end

app/models/settings.rb

@@ -0,0 +1,5 @@
+# encoding: utf-8
+class Settings < Settingslogic
+  source "#{Rails.root}/config/settings.yml"
+  namespace Rails.env
+end

app/models/upyun_image.rb

@@ -0,0 +1,17 @@
+class UpyunImage < ActiveRecord::Base
+  belongs_to :user
+  attr_accessible :asset
+
+  mount_uploader :asset, UpyunImageUploader
+
+  validates :asset, :content_type, :size, :filename, :presence => true
+  validates_integrity_of :asset
+
+  before_validation :set_metadata
+
+  private
+    def set_metadata
+      self.content_type = asset.file.content_type
+      self.size = asset.file.size
+    end
+end

app/uploaders/uploader_helper.rb

@@ -0,0 +1,19 @@
+require 'digest'
+require 'carrierwave/processing/mime_types'
+
+module UploaderHelper
+  def store_dir
+    "uploads/"
+  end
+
+  def cache_dir
+    "/tmp"
+  end
+
+  def filename
+    if original_filename.present?
+      hashed_name = Digest::MD5.hexdigest(File.dirname(current_path))[5..15]
+      "#{hashed_name}.#{file.extension}"
+    end
+  end
+end

app/uploaders/upyun_image_uploader.rb

@@ -0,0 +1,63 @@
+# encoding: utf-8
+
+class UpyunImageUploader < CarrierWave::Uploader::Base
+  include UploaderHelper
+
+  # Include RMagick or MiniMagick support:
+  include CarrierWave::RMagick
+  # include CarrierWave::MiniMagick
+
+  # Include the Sprockets helpers for Rails 3.1+ asset pipeline compatibility:
+  # include Sprockets::Helpers::RailsHelper
+  # include Sprockets::Helpers::IsolatedHelper
+
+  # Choose what kind of storage to use for this uploader:
+  # storage :file
+  # storage :fog
+  storage :upyun
+
+  self.upyun_username = Settings.upyun.operator_name
+  self.upyun_password = Settings.upyun.operator_password
+  self.upyun_bucket = Settings.upyun.bucket
+  self.upyun_bucket_domain = Settings.upyun.bucket_domain
+
+  process :resize_to_limit => [570, 0]
+  # Override the directory where uploaded files will be stored.
+  # This is a sensible default for uploaders that are meant to be mounted:
+  #def store_dir
+    #"public/uploads/"
+  #end
+
+  # Provide a default URL as a default if there hasn't been a file uploaded:
+  # def default_url
+  #   # For Rails 3.1+ asset pipeline compatibility:
+  #   # asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
+  #
+  #   "/images/fallback/" + [version_name, "default.png"].compact.join('_')
+  # end
+
+  # Process files as they are uploaded:
+  # process :scale => [200, 300]
+  #
+  # def scale(width, height)
+  #   # do something
+  # end
+
+  # Create different versions of your uploaded files:
+  # version :thumb do
+  #   process :scale => [50, 50]
+  # end
+
+  # Add a white list of extensions which are allowed to be uploaded.
+  # For images you might use something like this:
+  # def extension_white_list
+  #   %w(jpg jpeg gif png)
+  # end
+
+  # Override the filename of the uploaded files:
+  # Avoid using model.id or version_name here, see uploader/store.rb for details.
+  # def filename
+  #   "something.jpg" if original_filename
+  # end
+
+end

app/views/posts/show.html.erb

@@ -11,3 +11,4 @@
     </div>
   </div>
 </div>
+

app/views/upyun_images/new.html.erb

@@ -0,0 +1,10 @@
+<div class="container">
+  <%= form_for @upyun_image, :html => {:multipart => true} do |f| %>
+    <p>
+      <%= f.file_field :asset %>
+      <br>
+      <br>
+      <%= f.submit "upload" %>
+    </p>
+  <% end %>
+</div>

app/views/upyun_images/show.html.erb

@@ -0,0 +1,3 @@
+<div class="container">
+  <%= image_tag @img.asset_url.to_s %>
+</div>

config/initializers/carrierwave.rb

@@ -0,0 +1 @@
+CarrierWave::SanitizedFile.sanitize_regexp = /[^[:word:]\.\-\+]/

config/routes.rb

@@ -9,6 +9,7 @@
   get "/write_blog" => "posts#new"
   resources :posts
   resources :courses
+  resources :upyun_images
   resources :videos
 
   resources :users

config/settings.yml.example

@@ -0,0 +1,23 @@
+default: &default
+  canonical_host: "www.example.com"
+  system_email: "no-reply@example.com"
+  memcached:
+    servers: ["127.0.0.1:11211"]
+    namespace: "example"
+  upyun:
+    switch: 'off' # to support file upload, change this to 'on'
+    operator_name: ''
+    operator_password: ''
+    bucket: ''
+    bucket_domain: ''
+
+production:
+  <<: *default
+
+development:
+  <<: *default
+
+test:
+  <<: *default
+  default_password: 'project_rabel'
+

db/migrate/20121229090529_create_upyun_images.rb

@@ -0,0 +1,13 @@
+class CreateUpyunImages < ActiveRecord::Migration
+  def change
+    create_table :upyun_images do |t|
+      t.integer :user_id
+      t.string :asset
+      t.integer :size
+      t.string :content_type
+      t.string :filename
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20121228095218) do
+ActiveRecord::Schema.define(:version => 20121229090529) do
 
   create_table "comments", :force => true do |t|
     t.string   "content"
@@ -45,6 +45,16 @@
     t.datetime "updated_at", :null => false
   end
 
+  create_table "upyun_images", :force => true do |t|
+    t.integer  "user_id"
+    t.string   "asset"
+    t.integer  "size"
+    t.string   "content_type"
+    t.string   "filename"
+    t.datetime "created_at",   :null => false
+    t.datetime "updated_at",   :null => false
+  end
+
   create_table "users", :force => true do |t|
     t.string   "email"
     t.string   "password_digest"