Discogs releases import. Good.

app/models/album_format.rb

@@ -0,0 +1,4 @@
+class AlbumFormat < ActiveRecord::Base
+  belongs_to :album
+  belongs_to :format
+end

app/models/album_genre.rb

@@ -0,0 +1,4 @@
+class AlbumGenre < ActiveRecord::Base
+  belongs_to :album
+  belongs_to :genre
+end

app/models/album_style.rb

@@ -0,0 +1,4 @@
+class AlbumStyle < ActiveRecord::Base
+  belongs_to :album
+  belongs_to :style
+end

app/models/release_format.rb

@@ -0,0 +1,2 @@
+class ReleaseFormat < ActiveRecord::Base
+end

db/migrate/20110922185550_create_release_formats.rb

@@ -0,0 +1,10 @@
+class CreateReleaseFormats < ActiveRecord::Migration
+  def change
+    create_table :release_formats do |t|
+      t.string :name
+      t.string :hash
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20110922185632_create_album_formats.rb

@@ -0,0 +1,10 @@
+class CreateAlbumFormats < ActiveRecord::Migration
+  def change
+    create_table :album_formats do |t|
+      t.integer :album_id
+      t.integer :release_format_id
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20110922190724_create_album_genres.rb

@@ -0,0 +1,10 @@
+class CreateAlbumGenres < ActiveRecord::Migration
+  def change
+    create_table :album_genres do |t|
+      t.integer :album_id
+      t.integer :genre_id
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20110922190755_create_album_styles.rb

@@ -0,0 +1,10 @@
+class CreateAlbumStyles < ActiveRecord::Migration
+  def change
+    create_table :album_styles do |t|
+      t.integer :album_id
+      t.integer :style_id
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,28 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20110922122407) do
+ActiveRecord::Schema.define(:version => 20110922190755) do
+
+  create_table "album_formats", :force => true do |t|
+    t.integer  "album_id"
+    t.integer  "release_format_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  create_table "album_genres", :force => true do |t|
+    t.integer  "album_id"
+    t.integer  "genre_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  create_table "album_styles", :force => true do |t|
+    t.integer  "album_id"
+    t.integer  "style_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
 
   create_table "albums", :force => true do |t|
     t.string   "name"
@@ -122,6 +143,13 @@ ActiveRecord::Schema.define(:version => 20110922122407) do
     t.datetime "updated_at"
   end
 
+  create_table "release_formats", :force => true do |t|
+    t.string   "name"
+    t.string   "hash"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
   create_table "sessions", :force => true do |t|
     t.integer  "user_id"
     t.string   "key"

lib/discogs.rb

@@ -18,45 +18,101 @@ class Discogs
   end
   
   def self.releases
-    self.get_nodes('tmp/data/discogs_releases_test.xml', 'release') do |node|
+    self.get_nodes('tmp/data/discogs_releases.xml', 'release') do |node|
       
-      release = {
+      # Defining artist
-        :pic => (node.css('images > image[type="primary"]').first.attr('uri') unless node.css('images > image[type="primary"]').empty?),
+      main_artist = nil
-        :main_artist => (node.css('artists > artist > name').first.text unless node.css('artists > artist > name').empty?),
+      unless node.css('artists > artist > name').empty?
-        :master => (not node.css('master_id').empty?),
+        main_artist = Artist.find_or_create_by_name(node.css('artists > artist > name').first.text)
+      end
+      
+      # Creating album
+      album = Album.new(
         :name => (node.css('title').first.text unless node.css('title').empty?),
-        :country => (node.css('country').first.text unless node.css('country').empty?),
+        :artist_id => (main_artist.id unless main_artist.nil?),
         :year => (node.css('released').first.text.split('-').first.to_i unless node.css('released').empty?),
-        
+        :status => 1,
-        :genres => [],
+        :master => (not node.css('master_id').empty?)
-        :styles => [],
+      )
-        :tracks => [],
+    
-      }
+      # Parsing image
+      unless node.css('images > image[type="primary"]').empty?
+        album.pic_url = node.css('images > image[type="primary"]').first.attr('uri')
+        album.has_pic = 1
+      else
+        album.has_pic = 0
+      end
       
+      album.save ## ## ##
       
+      # Defining formats
+      formats = node.css('formats > format > descriptions > description').each do |f|
+        format = ReleaseFormat.find_or_create_by_name(f.text)
+        if format.hash.nil?
+          format.hash = f.text.scan(/\w/).join().downcase
+          format.save
+        end
+        AlbumFormat.new(
+          :album_id => album.id,
+          :release_format_id => format.id
+        ).save
+      end
+    
+      # Defining genres
       unless node.css('genres > genre').empty?
-        node.css('genres > genre').each do |genre|
+        node.css('genres > genre').each do |g|
-          release[:genres] << Genre.find_or_create_by_name(genre.text)
+          genre = Genre.find_or_create_by_name(g.text)
+          AlbumGenre.new(
+            :album_id => album.id,
+            :genre_id => genre.id
+          ).save
         end
       end
       
+      # Defining styles
       unless node.css('styles > style').empty?
-        node.css('styles > style').each do |style|
+        node.css('styles > style').each do |s|
-          release[:styles] << Style.find_or_create_by_name(style.text)
+          style = Style.find_or_create_by_name(s.text)
+          AlbumStyle.new(
+            :album_id => album.id,
+            :style_id => style.id
+          ).save
         end
       end
-      
+    
+      # Writing tracklist
       unless node.css('tracklist > track').empty?
-        node.css('tracklist > track').each do |track|
+        node.css('tracklist > track').each do |t|
-          release[:tracks] << Track.new(
+          track = Track.new(
-            :name => (track.css('title').first.text unless track.css('title').empty?),
+            :album_id => album.id,
-            :position => (track.css('position').first.text.to_i(36) unless track.css('position').empty?),
+            :name => (t.css('title').first.text unless t.css('title').empty?),
-            :length => (self.duration_to_length(track.css('duration').first.text) unless track.css('duration').empty?)
+            :position => (t.css('position').first.text.to_i(36) unless t.css('position').empty?),
+            :country => (node.css('country').first.text unless node.css('country').empty?),
+            :length => (self.duration_to_length(t.css('duration').first.text) unless t.css('duration').empty?)
           )
+          track.save
+          
+          if t.css('artists > artist').empty?
+            TrackArtist.new(
+              :track_id => track.id,
+              :artist_id => (main_artist.id unless main_artist.nil?),
+              :main => true
+            ).save
+          else
+            t.css('artists > artist').each_with_index do |a, i|
+              t_artist = Artist.find_or_create_by_name(a.css('name').first.text)
+              TrackArtist.new(
+                :track_id => track.id,
+                :artist_id => t_artist.id,
+                :main => (i == 0),
+                :join => a.css('join').first.text
+              ).save
+            end
+          end
+          
         end
       end
       
-      ap release
     end
   end
   

test/fixtures/album_formats.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/Fixtures.html
+
+one:
+  album_id: 1
+  release_format_id: 1
+
+two:
+  album_id: 1
+  release_format_id: 1

test/fixtures/album_genres.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/Fixtures.html
+
+one:
+  album_id: 1
+  genre_id: 1
+
+two:
+  album_id: 1
+  genre_id: 1

test/fixtures/album_styles.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/Fixtures.html
+
+one:
+  album_id: 1
+  style_id: 1
+
+two:
+  album_id: 1
+  style_id: 1

test/fixtures/release_formats.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/Fixtures.html
+
+one:
+  name: MyString
+  hash: MyString
+
+two:
+  name: MyString
+  hash: MyString

test/unit/album_format_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class AlbumFormatTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/unit/album_genre_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class AlbumGenreTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/unit/album_style_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class AlbumStyleTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/unit/release_format_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class ReleaseFormatTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end