switch to attache

Gemfile

@@ -47,3 +47,5 @@ end
 
 gem "paperclip", "~> 4.3"
 gem 'aws-sdk-v1' # If using paperclip <= v4.3.1
+
+gem "attache_rails", "~> 0.3.0"

Gemfile.lock

@@ -37,6 +37,12 @@ GEM
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     arel (6.0.3)
+    attache_api (0.1.0)
+      httpclient
+    attache_rails (0.3.0)
+      attache_api
+      httpclient
+      rails (>= 4.0.0)
     aws-sdk-v1 (1.66.0)
       json (~> 1.4)
       nokogiri (>= 1.4.4)
@@ -60,6 +66,7 @@ GEM
     execjs (2.6.0)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
+    httpclient (2.6.0.1)
     i18n (0.7.0)
     jbuilder (2.3.2)
       activesupport (>= 3.0.0, < 5)
@@ -153,6 +160,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  attache_rails (~> 0.3.0)
   aws-sdk-v1
   byebug
   coffee-rails (~> 4.1.0)

app/controllers/albums_controller.rb

@@ -69,6 +69,6 @@ def set_album
 
     # Never trust parameters from the scary internet, only allow the white list through.
     def album_params
-      params.require(:album).permit(:title, :cover_art, images_attributes: [:id, :file, :destroy])
+      params.require(:album).permit(:title, :cover_art, images: [], attaches_discarded: [])
     end
 end

app/models/album.rb

@@ -1,16 +1,4 @@
 class Album < ActiveRecord::Base
-  has_attached_file :cover_art, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/images/:style/missing.png"
-  validates_attachment_content_type :cover_art, content_type: /\Aimage\/.*\Z/
-
-  has_many :images
-  accepts_nested_attributes_for :images, allow_destroy: true
-
-  before_save :extract_dimensions
-  def extract_dimensions
-    tempfile = cover_art.queued_for_write[:original]
-    unless tempfile.nil?
-      geometry = Paperclip::Geometry.from_file(tempfile)
-      self.cover_art_dimensions = [geometry.width.to_i, geometry.height.to_i].join('x')
-    end
-  end
+  has_one_attache :cover_art
+  has_many_attaches :images
 end

app/views/albums/_form.html.erb

@@ -18,20 +18,14 @@
 
   <div class="field">
     <%= f.label :cover_art %><br>
-    <%= f.file_field :cover_art %>
+    <%= f.file_field :cover_art, f.object.cover_art_options('100x100>') %>
   </div>
 
+  <div class="field">
+    <%= f.label :images %><br>
+    <%= f.file_field :images, f.object.images_options('100x100>') %>
+  </div>
 
-  <fieldset>
-    <legend>Images</legend>
-    <% 3.times { f.object.images.build } %>
-    <%= f.fields_for :images do |f| %>
-      <div class="field">
-        <%= f.label :file %><br>
-        <%= f.file_field :file %>
-      </div>
-    <% end %>
-  </fieldset>
   <div class="actions">
     <%= f.submit %>
   </div>

app/views/albums/show.html.erb

@@ -5,9 +5,9 @@
   <%= @album.title %>
 </p>
 
-<p><%= image_tag @album.cover_art.url(:medium) %></p>
-<% @album.images.each do |image| %>
-  <p><%= image_tag image.file.url(:thumb) %></p>
+<p><%= image_tag @album.cover_art_url("300x300>") %></p>
+<% @album.images_urls("100x100>").each do |url| %>
+  <p><%= image_tag url %></p>
 <% end %>
 
 <%= link_to 'Edit', edit_album_path(@album) %> |

db/migrate/20151104071426_add_attache_json_columns.rb

@@ -0,0 +1,6 @@
+class AddAttacheJsonColumns < ActiveRecord::Migration
+  def change
+    add_column :albums, :cover_art, :json
+    add_column :albums, :images, :json
+  end
+end

db/migrate/20151104071547_populate_paperclip_data_into_attache_json.rb

@@ -0,0 +1,51 @@
+class PopulatePaperclipDataIntoAttacheJson < ActiveRecord::Migration
+
+  # always define a specific class for the migration
+  class Album < ActiveRecord::Base
+    def self.to_s; "Album"; end # important
+
+    has_attached_file :cover_art, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/images/:style/missing.png"
+    validates_attachment_content_type :cover_art, content_type: /\Aimage\/.*\Z/
+  end
+
+  class Image < ActiveRecord::Base
+    def self.to_s; "Image"; end # important
+
+    has_attached_file :file, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/images/:style/missing.png"
+    validates_attachment_content_type :file, content_type: /\Aimage\/.*\Z/
+  end
+  # end
+
+  def aws_uri_to_path(uri)
+    case uri.host
+    when 's3.amazonaws.com'
+      URI.decode uri.path.split('/')[2..-1].join('/') # skip over the bucket name in path
+    else
+      URI.decode uri.path[1..-1]
+    end
+  end
+
+  def up
+    Album.find_each do |album|
+      album.update_columns(
+        cover_art: {
+          path: aws_uri_to_path(URI.parse(album.cover_art.url('original'))),
+          content_type: album.cover_art.content_type,
+          geometry: album.cover_art_dimensions,
+        },
+        images: Image.where(album_id: album.id).collect {|image|
+          {
+            path: aws_uri_to_path(URI.parse(image.file.url('original'))),
+            content_type: image.file.content_type,
+            geometry: image.file_dimensions,
+          }
+        },
+      )
+    end
+  end
+
+  def down
+    Album.update_all cover_art: nil, images: nil
+  end
+
+end

db/migrate/20151104134038_remove_paperclip.rb

@@ -0,0 +1,24 @@
+class RemovePaperclip < ActiveRecord::Migration
+  def up
+    remove_attachment :albums, :cover_art
+    remove_column :albums, :cover_art_dimensions
+
+    drop_table :images
+  end
+
+  def down
+    add_attachment :albums, :cover_art
+    add_column :albums, :cover_art_dimensions, :string
+
+    create_table "images" do |t|
+      t.integer  "album_id"
+      t.datetime "created_at",        null: false
+      t.datetime "updated_at",        null: false
+      t.string   "file_file_name"
+      t.string   "file_content_type"
+      t.integer  "file_file_size"
+      t.datetime "file_updated_at"
+      t.string   "file_dimensions"
+    end
+  end
+end

db/schema.rb

@@ -11,31 +11,17 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20151104070856) do
+ActiveRecord::Schema.define(version: 20151104134038) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
   create_table "albums", force: :cascade do |t|
     t.string   "title"
-    t.datetime "created_at",             null: false
-    t.datetime "updated_at",             null: false
-    t.string   "cover_art_file_name"
-    t.string   "cover_art_content_type"
-    t.integer  "cover_art_file_size"
-    t.datetime "cover_art_updated_at"
-    t.string   "cover_art_dimensions"
-  end
-
-  create_table "images", force: :cascade do |t|
-    t.integer  "album_id"
-    t.datetime "created_at",        null: false
-    t.datetime "updated_at",        null: false
-    t.string   "file_file_name"
-    t.string   "file_content_type"
-    t.integer  "file_file_size"
-    t.datetime "file_updated_at"
-    t.string   "file_dimensions"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.json     "cover_art"
+    t.json     "images"
   end
 
 end