Charles Milam - Songify ex

.gitignore

@@ -1,3 +1,4 @@
 .bundle
 vendor/bundle
 .DS_Store
+.gems

Gemfile

@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
-ruby '2.0.0'
+ruby '2.1.3'
 
 gem 'rspec', '~> 2.14.1'
 gem 'pry-byebug'

lib/songify.rb

@@ -2,15 +2,15 @@
 
 module Songify
   def self.create_db_connection(dbname)
-    PG.connect(host: 'localhost', dbname: dbname)
+    PG.connect(dbname: dbname)
   end
 
   def self.clear_db(db)
     db.exec <<-SQL
-      DELETE FROM albums;
-      DELETE FROM songs;
-      DELETE FROM genres;
-      /* TODO: Clear rest of the tables (books, etc.) */
+      DELETE FROM albums cascade;
+      DELETE FROM songs cascade;
+      DELETE FROM genres cascade;
+      delete from album_genres cascade;
     SQL
   end
 
@@ -22,27 +22,41 @@ def self.create_tables(db)
       );
       CREATE TABLE songs(
         id SERIAL PRIMARY KEY,
-        album_id integer REFERENCES albums (id),
+        album_id integer REFERENCES albums (id)
+        on delete cascade
+        on update cascade,
         title VARCHAR
       );
       CREATE TABLE genres(
         id SERIAL PRIMARY KEY,
         name VARCHAR
       );
-      /* TODO: Create song_genres table */
+      create table album_genres(
+        id serial primary key,
+        album_id integer references albums (id)
+        on delete cascade
+        on update cascade,
+        genres_id integer references genres (id)
+        on delete cascade
+        on update cascade
+      )
     SQL
   end
 
   def self.drop_tables(db)
     db.exec <<-SQL
-      DROP TABLE albums;
-      DROP TABLE songs;
-      DROP TABLE genres;
-      /* TODO: Drop song_genres table */
+      DROP TABLE if exists albums cascade;
+      DROP TABLE if exists songs cascade;
+      DROP TABLE if exists genres cascade;
+      drop table if exists album_genres cascade;
     SQL
   end
 end
 
 require_relative 'songify/album_repo'
 require_relative 'songify/genre_repo'
 require_relative 'songify/song_repo'
+
+# db = Songify.create_db_connection("songify_dev")
+# Songify.drop_tables(db)
+# Songify.create_tables(db)

lib/songify/album_repo.rb

@@ -8,17 +8,55 @@ def self.all(db)
     end
 
     def self.find(db, album_id)
-      db.exec("SELECT * FROM albums WHERE id=$1", [album_id]).first
+      result = db.exec("SELECT * FROM albums WHERE id = $1", [album_id]).first
+
+      if result
+        genres = []
+        genre_result = {}
+        sql = %Q[
+          SELECT 
+            albums.title, 
+            genres.name
+          FROM 
+            album_genres, 
+            genres, 
+            albums
+          WHERE 
+            album_genres.genres_id = genres.id AND
+            album_genres.album_id = $1
+        ]
+        genre_result = db.exec(sql, [album_id])
+
+        genre_result.each do |r|
+          genres << {'id' => r['genre_id'], 'name' => r['name']}
+        end
+        result['genres'] = genres
+      end
+      result
     end
 
     def self.save(db, album_data)
+      #puts album_data
       if album_data['id']
         result = db.exec("UPDATE albums SET title = $2 WHERE id = $1", [album_data['id'], album_data['title']])
         self.find(db, album_data['id'])
       else
         raise "title is required." if album_data['title'].nil? || album_data['title'] == ''
         result = db.exec("INSERT INTO albums (title) VALUES ($1) RETURNING id", [album_data['title']])
+        #puts "album result", result.entries.first
         album_data['id'] = result.entries.first['id']
+
+        if album_data["genre_ids"]
+          sql = %Q[
+            insert into album_genres
+            (album_id, genres_id)
+            values ($1, $2)
+          ]
+          album_data["genre_ids"].each do |g_id|
+            db.exec(sql, [album_data["id"].to_i, g_id.to_i])
+          end
+        end
+
         album_data
       end
     end

lib/songify/song_repo.rb

@@ -22,7 +22,7 @@ def self.save(db, song_data)
         album = AlbumRepo.find(db, song_data['album_id'])
         raise "A valid album_id is required." if album.nil?
 
-        result = db.exec("INSERT INTO songs (title) VALUES ($1) RETURNING id", [song_data['title']])
+        result = db.exec("INSERT INTO songs (title) VALUES ($1) RETURNING id", [song_data["title"]])
         song_data['id'] = result.entries.first['id']
         song_data
       end

server.rb

@@ -10,22 +10,34 @@
 get '/albums' do
   db = Songify.create_db_connection('songify_dev')
   @albums = Songify::AlbumRepo.all(db)
+  @genres = Songify::GenreRepo.all(db)
+
   erb :"albums/index"
 end
 
 post '/albums' do
   db = Songify.create_db_connection('songify_dev')
   album = Songify::AlbumRepo.save(db, {
-    'title' => params[:title]
+    'title' => params[:title],
+    "genre_ids" => params[:genres]
   })
   redirect to '/albums'
 end
 
-
 get '/songs' do
+  db = Songify.create_db_connection("songify_dev")
+  @albums = Songify::AlbumRepo.all(db)
+
   erb :"songs/index"
 end
 
+post '/songs' do
+  db = Songify.create_db_connection("songify_dev")
+  puts params.inspect
+  Songify::SongRepo.save(db, {"title" => params[:title], "album_id" => params[:album_id]})
+
+  redirect back
+end
 
 get '/genres' do
   db = Songify.create_db_connection('songify_dev')

spec/repos/album_repo_spec.rb

@@ -45,7 +45,7 @@ def album_count
     }
   end
 
-  xit "can be assigned genres" do
+  it "can be assigned genres" do
     gid_1 = Songify::GenreRepo.save(db, { 'name' => 'rock' })
     gid_2 = Songify::GenreRepo.save(db, { 'name' => 'avant-garde' })
     gid_3 = Songify::GenreRepo.save(db, { 'name' => 'jazz' })

views/albums/index.erb

@@ -1,15 +1,48 @@
 <a href="/">&lt;- Back to Everything</a>
-<h1>All Albums</h1>
-
-<ul>
-  <% @albums.each do |album| %>
-    <li><%= album['title'] %></li>
-  <% end %>
-</ul>
-
-<form action="/albums" method="post">
-  <h3>New Album</h3>
-  <label>Album Title:</label>
-  <input name="title" type="text" />
-  <button>Create Album</button>
-</form>
+<div>
+  <h1>All Albums</h1>
+
+  <ul>
+    <% @albums.each do |album| %>
+      <li><%= album['title'] %></li>
+    <% end %>
+  </ul>
+
+  <form action="/albums" method="post">
+    <h3>New Album</h3>
+    <label>Album Title:</label>
+    <input name="title" type="text" />
+    <label>Genre:</label>
+    <select class="genres" name="genres[]" style="width: 25%; margins: auto">
+      <% @genres.each do |g| %>
+        <option value=<%= g["id"] %>><%= g["name"] %></option>
+      <% end %>
+    </select><br />
+
+    <a href="#" class="add-genre">add another genre</a><br />
+    &nbsp;&nbsp;&nbsp;<div><button>Create Album</button></div><br />
+
+
+  </form>
+</div>
+
+<script src="http://code.jquery.com/jquery-1.10.2.js"></script>
+<script>
+  $(".add-genre").click(function(e) {
+    e.preventDefault()
+    console.log("in add")
+    $(this).before( $(".genres").last().clone())
+    $(this).before("<a href='#' class='remove-genre' style='margin: auto auto auto 10px;'>remove this genre</a>")
+    $(this).before( "<br />")
+
+  })
+
+  $(document).on("click", ".remove-genre", function(e) {
+    e.preventDefault()
+    console.log("in remove")
+    $(this).prev().remove()
+    $(this).prev().remove()
+    $(this).remove()
+  })
+
+</script>

views/genres/index.erb

@@ -1,15 +1,17 @@
 <a href="/">&lt;- Back to Everything</a>
-<h1>All Genres</h1>
+<div>
+  <h1>All Genres</h1>
 
-<ul>
-  <% @genres.each do |genre| %>
-    <li><%= genre['name'] %></li>
-  <% end %>
-</ul>
+  <ul>
+    <% @genres.each do |genre| %>
+      <li><%= genre['name'] %></li>
+    <% end %>
+  </ul>
 
-<form action="/genres" method="post">
-  <h3>New Genre</h3>
-  <label>Genre Name:</label>
-  <input name="name" type="text" />
-  <button>Create Genre</button>
-</form>
+  <form action="/genres" method="post">
+    <h3>New Genre</h3>
+    <label>Genre Name:</label>
+    <input name="name" type="text" />
+    <button>Create Genre</button>
+  </form>
+</div>

views/index.erb

@@ -1,8 +1,11 @@
-<h1>The Songify System</h1>
+<div>
+  <h1>The Songify System</h1>
 
-<p>You're gonna be big</p>
+  <p>You're gonna be big</p>
 
-<ul>
-  <li><a href="/albums">View Albums</a></li>
-  <li><a href="/genres">View Genres</a></li>
-</ul>
+  <ul>
+    <li><a href="/albums">View/Add Albums</a></li>
+    <li><a href="/songs">View/Add Songs</a>
+    <li><a href="/genres">View/Add Genres</a></li>
+  </ul>
+</div>

views/layout.erb

@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Songify</title>
+  <link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/foundation/5.1.1/css/foundation.css">
+  <style type="text/css">
+    div {
+      width: 50%;
+      margin: auto;
+    }
+    ul {
+      list-style-type: none;
+    }
+  </style>
+</head>
+<body>
+<%= yield %>
+<br /><br /><br />
+</body>
+</html>

views/songs/index.erb

@@ -0,0 +1,16 @@
+<a href="/">&lt;- Back to Everything</a>
+<div> 
+  <form method="post" action="/songs">
+    <h3>Add a Song</h3>
+      <label>Title:</label>
+      <input type="text" name="title" />
+      <label>Album:</label>
+      <select name="album_id">
+        <% @albums.each do |a| %>
+        <option value=<%= a["id"] %>><%= a["title"] %></option>               
+        <% end %>
+      </select>
+
+      <button>Add Song</button>
+  </form>
+</div>