Add Album resources

app/controllers/admin/albums_controller.rb

@@ -0,0 +1,76 @@
+# frozen_string_literal: true
+
+module Admin
+  class AlbumsController < ApplicationController
+    before_action :set_album, only: %i[show edit update destroy]
+    before_action :authenticate_user!
+    PAGE_LIMIT = 10
+
+    # GET /albums or /albums.json
+    def index
+      @albums = Album.page(params[:page]).
+                per(PAGE_LIMIT).order('id ASC')
+    end
+
+    # GET /albums/1 or /albums/1.json
+    def show; end
+
+    # GET /albums/new
+    def new
+      @album = Album.new
+    end
+
+    # GET /albums/1/edit
+    def edit; end
+
+    # POST /albums or /albums.json
+    def create
+      @album = Album.new(album_params)
+
+      respond_to do |format|
+        if @album.save
+          format.html { redirect_to admin_albums_url, notice: 'Album was successfully created.' }
+          format.json { render :show, status: :created, location: @album }
+        else
+          format.html { render :new, status: :unprocessable_entity }
+          format.json { render json: @album.errors, status: :unprocessable_entity }
+        end
+      end
+    end
+
+    # PATCH/PUT /albums/1 or /albums/1.json
+    def update
+      respond_to do |format|
+        if @album.update(album_params)
+          format.html { redirect_to admin_album_url(@album), notice: 'Album was successfully updated.' }
+          format.json { render :show, status: :ok, location: @album }
+        else
+          format.html { render :edit, status: :unprocessable_entity }
+          format.json { render json: @album.errors, status: :unprocessable_entity }
+        end
+      end
+    end
+
+    # DELETE /albums/1 or /albums/1.json
+    def destroy
+      @album.destroy
+
+      respond_to do |format|
+        format.html { redirect_to admin_albums_url, notice: 'Album was successfully destroyed.' }
+        format.json { head :no_content }
+      end
+    end
+
+    private
+
+    # Use callbacks to share common setup or constraints between actions.
+    def set_album
+      @album = Album.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def album_params
+      params.require(:album).permit(:name, :artist_id, :release_year)
+    end
+  end
+end

app/controllers/admin/songs_controller.rb

@@ -71,7 +71,7 @@ def set_song
 
     # Only allow a list of trusted parameters through.
     def song_params
-      params.require(:song).permit(:name, :lyric, :genre_id, :link, :tempo,
+      params.require(:song).permit(:name, :lyric, :genre_id, :link, :tempo, :album_id,
                                    artists_songs_attributes: [:id, :artist_id, :artist_type, :_destroy])
     end
   end

app/controllers/albums_controller.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class AlbumsController < ApplicationController
+  before_action :set_album, only: :show
+  PAGE_LIMIT = 10
+
+  def index
+    @albums = Album.includes([:artist]).page(params[:page]).
+              per(PAGE_LIMIT)
+  end
+
+  def show
+    @songs = @album.songs.includes([:artists, :genre])
+  end
+
+  private
+
+  # Use callbacks to share common setup or constraints between actions.
+  def set_album
+    @album = begin
+      Album.find(params[:id])
+    rescue StandardError
+      not_found
+    end
+  end
+end

app/controllers/artists_controller.rb

@@ -9,7 +9,10 @@ def index
                per(PAGE_LIMIT)
   end
 
-  def show; end
+  def show
+    @albums = @artist.albums
+    @songs = @artist.songs.includes([:artists, :genre, :album])
+  end
 
   private
 

app/controllers/genres_controller.rb

@@ -9,7 +9,9 @@ def index
               per(PAGE_LIMIT)
   end
 
-  def show; end
+  def show
+    @songs = @genre.songs.includes([:artists, :album])
+  end
 
   private
 

app/controllers/songs_controller.rb

@@ -5,7 +5,7 @@ class SongsController < ApplicationController
   PAGE_LIMIT = 10
 
   def index
-    @songs = Song.includes(%i[genre artists_songs artists]).
+    @songs = Song.includes(%i[genre album artists_songs artists]).
              page(params[:page]).
              per(PAGE_LIMIT)
   end

app/models/album.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class Album < ApplicationRecord
+  belongs_to :artist
+  has_many :songs, dependent: :nullify
+end

app/models/artist.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 class Artist < ApplicationRecord
+  has_many :albums, dependent: :destroy
   has_many :artists_songs, dependent: :destroy
   has_many :songs, through: :artists_songs
   validates :name, presence: true, uniqueness: true

app/models/song.rb

@@ -2,6 +2,7 @@
 
 class Song < ApplicationRecord
   belongs_to :genre
+  belongs_to :album
   has_many :artists_songs, dependent: :destroy
   has_many :artists, through: :artists_songs
   validates :name, presence: true

app/views/admin/albums/_album.html.slim

@@ -0,0 +1,12 @@
+div id="#{dom_id album}"
+  p
+    strong Name:
+    =< album.name
+
+  div
+    strong Artist:
+    =< album.artist.name
+
+  p
+    strong Release Year:
+    =< album.release_year

app/views/admin/albums/_album.json.jbuilder

@@ -0,0 +1,4 @@
+# frozen_string_literal: true
+
+json.extract! album, :id, :name, :artist_id, :release_year, :created_at, :updated_at
+json.url album_url(album, format: :json)

app/views/admin/albums/edit.html.slim

@@ -0,0 +1,38 @@
+== render "layouts/navbar"
+
+.container-fluid
+  .row.lyrics-site-content
+    == render "layouts/sidebar"
+
+    main.col-md-9.col-lg-10.mt-2.mb-2
+      h1 Editing album
+
+      = form_with scope: :album, url: admin_album_path(@album), method: :patch do |form|
+        - if @album.errors.any?
+          div.alert.alert-danger
+            h2 = "#{pluralize(@album.errors.count, "error")} prohibited this album from being saved:"
+            ul
+              - @album.errors.each do |error|
+                li = error.full_message
+
+        .mb-3
+          = form.label :name, class: 'form-label'
+          = form.text_field :name, class: 'form-control'
+
+        .mb-3
+          = form.label :artist_id, class: 'form-label'
+          = form.select :artist_id, Artist.all.collect {|artist| [ artist.name, artist.id ] }, {}, class: 'form-control'
+
+        .mb-3
+          = form.label :release_year, class: 'form-label'
+          = form.number_field :release_year, class: 'form-control'
+
+        div
+          = form.submit 'Save Album', class: 'btn btn-primary'
+
+      br
+
+      div
+        = link_to "Back to albums", admin_albums_path, class: 'btn btn-secondary'
+
+== render 'layouts/footer'

app/views/admin/albums/index.html.slim

@@ -0,0 +1,39 @@
+== render "layouts/navbar"
+
+.container-fluid
+  .row.lyrics-site-content
+    == render "layouts/sidebar"
+
+    main.col-md-9.col-lg-10.mt-2.mb-2
+      - if notice
+        p.alert.alert-success = notice
+
+      h1 Albums
+
+      table.table.table-bordered#albums
+        thead.table-dark
+          tr
+            th[scope='col']
+              | #
+            th[scope='col']
+              | Name
+            th[scope='col', colspan=3]
+              | Action
+        tbody.table-group-divider
+          - @albums.each do |album|
+            tr
+              td
+                =< album.id
+              td
+                =< album.name
+              td
+                = link_to "Show this album", admin_album_path(album), class: 'btn btn-success'
+              td
+                = link_to "Edit this album", edit_admin_album_path(album), class: 'btn btn-warning'
+              td
+                = button_to "Delete this album", admin_album_path(album), method: :delete, class: 'btn btn-danger'
+
+      = paginate @albums, theme: 'bootstrap-5'
+      = link_to "New album", new_admin_album_path, class: 'btn btn-primary'
+
+== render 'layouts/footer'

app/views/admin/albums/index.json.jbuilder

@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+
+json.array! @albums, partial: 'albums/album', as: :album

app/views/admin/albums/new.html.slim

@@ -0,0 +1,38 @@
+== render "layouts/navbar"
+
+.container-fluid
+  .row.lyrics-site-content
+    == render "layouts/sidebar"
+
+    main.col-md-9.col-lg-10.mt-2.mb-2
+      h1 New album
+
+      = form_with scope: :album, url: admin_albums_path do |form|
+        - if @album.errors.any?
+          .alert.alert-danger
+            h2 = "#{pluralize(@album.errors.count, "error")} prohibited this album from being saved:"
+            ul
+              - @album.errors.each do |error|
+                li = error.full_message
+
+        .mb-3
+          = form.label :name, class: 'form-label'
+          = form.text_field :name, class: 'form-control'
+
+        .mb-3
+          = form.label :artist_id, class: 'form-label'
+          = form.select :artist_id, Artist.all.collect {|artist| [ artist.name, artist.id ] }, {}, class: 'form-control'
+
+        .mb-3
+          = form.label :release_year, class: 'form-label'
+          = form.number_field :release_year, class: 'form-control'
+
+        div
+          = form.submit 'Create Album', class: 'btn btn-primary'
+
+      br
+
+      div
+        = link_to "Back to albums", admin_albums_path, class: 'btn btn-secondary'
+
+== render 'layouts/footer'

app/views/admin/albums/show.html.slim

@@ -0,0 +1,20 @@
+== render "layouts/navbar"
+
+.container-fluid
+  .row.lyrics-site-content
+    == render "layouts/sidebar"
+
+    main.col-md-9.col-lg-10.mt-2.mb-2
+      - if notice
+        p.alert.alert-success = notice
+
+      == render @album
+
+      .mb-2
+        => link_to "Edit this album", edit_admin_album_path(@album), class: 'btn btn-warning'
+        '|
+        =< link_to "Back to albums", admin_albums_path, class: 'btn btn-secondary'
+
+      = button_to "Delete this album", admin_album_path(@album), method: :delete, class: 'btn btn-danger'
+
+== render 'layouts/footer'

app/views/admin/albums/show.json.jbuilder

@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+
+json.partial! 'albums/album', album: @album

app/views/admin/songs/_song.html.slim

@@ -11,6 +11,10 @@ div id="#{dom_id song}"
     strong Genre:
     =< song.genre.name
 
+  p
+    strong Album:
+    =< song.album.name
+
   p
     strong Link:
     =< song.link

app/views/admin/songs/_song.json.jbuilder

@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 
-json.extract! song, :id, :name, :lyric, :genre_id, :created_at, :updated_at
+json.extract! song, :id, :name, :lyric, :genre_id, :album_id, :created_at, :updated_at
 json.url song_url(song, format: :json)

app/views/admin/songs/edit.html.slim

@@ -73,6 +73,10 @@
           = form.label :genre_id, class: 'form-label'
           = form.select :genre_id, Genre.all.collect {|genre| [ genre.name, genre.id ] }, {}, class: 'form-control'
 
+        .mb-3
+          = form.label :album_id, class: 'form-label'
+          = form.select :album_id, Album.all.collect {|album| [ album.name, album.id ] }, {}, class: 'form-control'
+
         .mb-3
           = form.label :lyric, class: 'form-label'
           = form.text_area :lyric, class: 'form-control', rows: 20

app/views/admin/songs/new.html.slim

@@ -55,6 +55,10 @@
           = form.label :genre_id, class: 'form-label'
           = form.select :genre_id, Genre.all.collect {|genre| [ genre.name, genre.id ] }, {}, class: 'form-control'
 
+        .mb-3
+          = form.label :album_id, class: 'form-label'
+          = form.select :album_id, Album.all.collect {|album| [ album.name, album.id ] }, {}, class: 'form-control'
+
         .mb-3
           = form.label :lyric, class: 'form-label'
           = form.text_area :lyric, class: 'form-control', rows: 20

app/views/albums/index.html.slim

@@ -0,0 +1,22 @@
+- content_for :title, 'Japanese lyrics site'
+
+== render 'layouts/navbar_for_viewer'
+
+h1 All Albums
+
+.container-fluid
+  .row.mt-2.lyrics-site-content
+    main.col-md-9.col-lg-10
+      - @albums.each do |album|
+        .card.mb-2
+          .card-body
+            p
+              = link_to album.name, album_path(album)
+            p
+              = album.artist.name
+            p
+              = album.release_year
+
+  = paginate @albums, theme: 'bootstrap-5'
+
+== render 'layouts/footer'