An empty Array in the API - json

Question

Hi, I am using postman to receive json from an API that I am creating. I don't get an error, but the index is not behaving the way I want it to. What I want is for the index to have a current playlist and only render the songs that are in that specific playlist. I have data in the database, yet I am getting an empty array. I think it may have to do with the relationships, but I am not sure. Any ideas? Thanks

class Api::V1::PlaylistSongsController < ApplicationController
def index
  @playlist_song = current_playlist.playlist_songs
    render json: @playlist_song
end

class ApplicationController < ActionController::Base
def current_playlist
    @current_playlist ||= Playlist.where({user_id: current_user.id}).first
end

class Playlist < ActiveRecord::Base
  has_many :playlist_songs
  has_many :songs, through: :playlist_songs
end

class PlaylistSong < ActiveRecord::Base
#I added a join table because a song should have the ability to have_many playlists
#I just added the foreign_key and inverse_of, but no luck
  belongs_to :playlist, foreign_key: "playlist_id", inverse_of: :playlist_songs
  belongs_to :song    , foreign_key: "song_id", inverse_of: :playlist_songs
end

class Song < ActiveRecord::Base
  has_many    :playlist_songs
  has_many    :playlists, through: :playlist_songs
end

Answer 1 · 2015-04-30T00:20:53Z

April 30, 2015 12:20am

ok, I got it. I just didn't pass in the playlist params.

def current_playlist
    @current_playlist ||= current_user.playlists.find(params[:playlist_id])
  end

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Jordan Aldujaili

Jordan Aldujaili

An empty Array in the API - json

1 Answer

Jordan Aldujaili

Jordan Aldujaili