Class: MusicStory::Repository::Sequel

Inherits:
Object
  • Object
show all
Defined in:
lib/music_story/repository/sequel.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(db) ⇒ Sequel

Returns a new instance of Sequel.



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# File 'lib/music_story/repository/sequel.rb', line 3

def initialize(db)
  db = Sequel.connect(db) unless db.is_a?(Sequel::Database)
  @db = db
  @artist_repo = Repository::ArtistSequel.new(db)
  @genre_repo  = Repository::GenreSequel.new(db)
  [:similar_artists, :influenced_by_artists, :successor_artists].each do |prop|
    @artist_repo.mapper(prop).target_repo = @artist_repo
  end
  [:main_genres, :secondary_genres, :influenced_by_genres].each do |prop|
    @artist_repo.mapper(prop).target_repo = @genre_repo
  end
end

Instance Attribute Details

#artist_repo ⇒ Object (readonly)

Returns the value of attribute artist_repo.



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# File 'lib/music_story/repository/sequel.rb', line 16

def artist_repo
  @artist_repo
end

#db ⇒ Object (readonly)

Returns the value of attribute db.



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# File 'lib/music_story/repository/sequel.rb', line 16

def db
  @db
end

#genre_repo ⇒ Object (readonly)

Returns the value of attribute genre_repo.



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# File 'lib/music_story/repository/sequel.rb', line 16

def genre_repo
  @genre_repo
end

Instance Method Details

#create_tables! ⇒ Object 



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# File 'lib/music_story/repository/sequel.rb', line 24

def create_tables!
  @db.create_table(:artist_associations, :ignore_index_errors=>true) do
    Integer :from_artist_id, :null=>false
    Integer :to_artist_id, :null=>false
    String :relation, :size=>16

    primary_key [:from_artist_id, :relation, :to_artist_id]

    index [:to_artist_id], :name=>:to_artist_id
  end

  @db.create_table(:artist_genres, :ignore_index_errors=>true) do
    Integer :artist_id, :null=>false
    Integer :genre_id, :null=>false
    String :relation, :size=>16

    primary_key [:artist_id, :relation, :genre_id]

    index [:genre_id], :name=>:genre_id
  end

  @db.create_table(:artists, :ignore_index_errors=>true) do
    primary_key :id
    String :name, :null=>false, :size=>255
    String :forename, :size=>255
    String :real_name, :size=>255
    String :role, :size=>64
    String :type, :size=>64
    String :country, :size=>64
    String :summary_html, :text=>true
    String :bio_html, :text=>true
    String :image_filename, :text=>true

    index [:name], :name=>:name
  end

  @db.create_table(:genres) do
    primary_key :id
    String :name, :null=>false, :size=>255
  end
end

#drop_tables! ⇒ Object 



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# File 'lib/music_story/repository/sequel.rb', line 18

def drop_tables!
  [:genres, :artist_associations, :artist_genres, :artists].each do |table|
    begin ; @db.drop_table(table) ; rescue ; end
  end
end