undefined method `song_id' [rails 4] -
to break down app quickly: have songs, comments, , users model. user's can upload songs, , make comments.
in short, when submitting song below error.i've looked how ryan bates does , code identical. not sure why song_id isn't being associated. please advise :)
full app code can seen here: www.github.com/apane/leap
error msg:
nomethoderror in songs#show showing /users/apane/downloads/leap/app/views/comments/_form.html.erb line #17 raised: undefined method `song_id' #<song:0x007f8e71f77d10> <div class="row"> <div class="large-6 columns"> <div class="field"> <%= f.hidden_field :song_id %> <p> <%= f.label :author_name, 'name' %><br /> <%= f.text_field :author_name %> comments#_form.html.erb
<%= form_for @comment |f| %> <% if @comment.errors.any? %> <div id="error_explanation"> <h2><%= pluralize(@comment.errors.count, "error") %> prohibited comment being saved:</h2> <ul> <% @comment.errors.full_messages.each |msg| %> <li><%= msg %></li> <% end %> </ul> </div> <% end %> <div class="row"> <div class="large-6 columns"> <div class="field"> <%= f.hidden_field :song_id %> <p> <%= f.label :author_name, 'name' %><br /> <%= f.text_field :author_name %> </p> <p> <%= f.label :site_url, 'website url' %><br /> <%= f.text_field :site_url %> </p> <p> <%= f.label :content, 'comment' %><br /> <%= f.text_area :content, :rows => '12', :cols => 35 %> </p> <p><%= f.submit "submit" %></p> <% end %> </div></div></div> songs_controller.rb
class songscontroller < applicationcontroller before_filter :authenticate_user!, only: [:create ,:edit, :update, :destroy] before_action :set_song, only: [:show, :edit, :update, :destroy] # /songs # /songs.json def index @songs = song.all end # /songs/1 # /songs/1.json def show @comment = @song end # /songs/new def new @song = song.new end # /songs/1/edit def edit end # post /songs # post /songs.json def create @song = song.new(song_params) respond_to |format| if @song.save format.html { redirect_to @song, notice: 'song created.' } format.json { render action: 'show', status: :created, location: @song } else format.html { render action: 'new' } format.json { render json: @song.errors, status: :unprocessable_entity } end end end # patch/put /songs/1 # patch/put /songs/1.json def update respond_to |format| if @song.update(song_params) format.html { redirect_to @song, notice: 'song updated.' } format.json { head :no_content } else format.html { render action: 'edit' } format.json { render json: @song.errors, status: :unprocessable_entity } end end end # song /songs/1 # song /songs/1.json def destroy @song.destroy respond_to |format| format.html { redirect_to songs_url } format.json { head :no_content } end end private def set_song @song = song.find(params[:id]) end def song_params params.require(:song).permit(:title, :artist, :bio, :track, :user_id) end end comments_controller.rb
class commentscontroller < applicationcontroller before_action :set_comment, only: [:show, :edit, :update, :destroy] # /comments/new def new end # /comments/1/edit def edit end # post /comments # post /comments.json def create @comment = comment.new(comment_params) respond_to |format| if @comment.save format.html { redirect_to song_url(@comment.song_id), notice: 'comment created.' } format.json { render action: 'show', status: :created, location: @comment} else format.html { render action: 'new' } format.json { render json: @comment.errors, status: :unprocessable_entity } end end end # patch/put /comments/1 # patch/put /comments/1.json def update respond_to |format| if @comment.update(comment_params) format.html { redirect_to song_url(@comment.song_id), notice: 'comment updated.' } format.json { head :no_content } else format.html { render action: 'edit' } format.json { render json: @comment.errors, status: :unprocessable_entity } end end end # delete /comments/1 # delete /comments/1.json def destroy @comment.destroy redirect_to song_url(@comment.song_id) end private # use callbacks share common setup or constraints between actions. def set_comment @comment = comment.find(params[:id]) end # never trust parameters scary internet, allow white list through. def comment_params params.require(:comment).permit(:song_id, :author_name, :site_url, :content, :user_id) end end songs#show.html.erb
<p id="notice"><%= notice %> <p> <strong>title:</strong> <%= @song.title %> </p> <p> <strong>bio:</strong> <%= @song.bio %> </p> <p> <strong>audio:</strong> <%= audio_tag (@song.track.url), controls: "controls", alt: "please use chrome, ie, or safari" %> </p> <br /><br /> <%= link_to 'edit', edit_song_path(@song), class: "button small secondary"%> <%= link_to 'back', songs_path, class: "button small secondary" %> <% unless @song.comments.empty? %> <h2><%= pluralize(@song.comments.size, 'comment') %></h2> <div id="comments"> <% comment in @song.comments %> <div class="comment"> <strong><%= link_to_unless comment.site_url.blank?, h(comment.author_name), h(comment.site_url) %></strong> <em>on <%= comment.created_at.strftime('%b %d, %y @ %h:%m') %></em> <%=simple_format comment.content %> <p> <%= link_to "edit", edit_comment_path(comment) %> <% end %> | <%= link_to "destroy", comment, :method => :delete, :confirm => "are sure?" %> </p> </div> </div> <% end %> <h3>add comment:</h3> <%= render :partial => 'comments/form' %>
you forgot add association in comment model.
add in song.rb
belongs_to :song 
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