gistfile1.rb

class SongsController < ApplicationController
  # GET /songs
  
  def index
    @songs = Song.all
    
    if params[:tag]
      @songs = Song.tagged_with(params[:tag])
    else
      @songs = Song.all
    end
    
    @alphabetical_songs = Song.all.group_by{|u| u.title[0]}
    
  end
  
  def upload
    @uploader = Song.new.track
    @uploader.success_action_redirect = new_song_url
  end

  # GET /songs/1
  def show
    @song = Song.find(params[:id])
  end

  # GET /songs/new
  def new
    @song = Song.new(key: params[:key])
  end

  # GET /songs/1/edit
  def edit
    @song = Song.find(params[:id])
  end

  # POST /songs
  def create    
    @user = current_user
    @song = @user.songs.build(params[:song])
    if @song.save
      flash[:success] = "Song created!"
      redirect_to songs_path
    else
      render 'songs/new'
    end
  end

  # PUT /songs/1
  def update
    @song = Song.find(params[:id])
    
    if @song.update_attributes(params[:song])     
      flash[:success] = "Song updated!"
      redirect_to songs_path
    else
      flash[:error] = "Unable to update song"
      redirect_to songs_path
    end
  end

  # DELETE /songs/1
  def destroy
    @song = Song.find(params[:id])
    @song.destroy
    
    if @song.destroy
      flash[:success] = "Song deleted!"
      redirect_to songs_path
    else
      flash[:error] = "Unable to delete song"
      redirect_to songs_path
    end
  end
end