nick-3JddmTdh/8vQT0dZR+AlfA@public.gmane.org
2013-Jun-21 19:17 UTC
[HELP] NameError in Discussions#index
Hi everybody!
I''m currently in the process of writing my first ruby on rails app.
I''m
quite new to the whole thing and I could use some help with an issue
i''ve
been stuck on for a while.
The goal here is to crease a discussion board where users can comment with
microposts. Very simple. The issue is that I am getting the error
NameError in Discussions#index
undefined local variable or method `discussion'' for
#<#<Class:0x00000103eb4e08>:0x00000103e78bb0>
I''m sure the fix is quite simple. Here''s the relevant code
discussion controller
class DiscussionsController < ApplicationController
before_filter :signed_in_user, only: [:index, :edit, :update]
def show
@user = User.find(params[:id])
@discussions = @user.discussion.paginate(page: params[:page])
@microposts = @user.micropost.paginate(page: params[:page])
end
def index
@discussions = Discussion.all
end
def create
@discussion = current_user.discussions.build(params[:discussion])
if @discussion.save
flash[:success] = "Discussion Started!"
redirect_to root_url
else
render ''static_pages/home''
end
end
def destroy
end
def edit
end
def update
end
def new
end
end
micropost controller
class MicropostsController < ApplicationController
before_filter :signed_in_user, only: [:create, :destroy]
def index
end
def create
@discussion = current_user.discussions.new
@micropost = current_user.microposts.build(params[:micropost])
if @micropost.save
flash[:success] = "Posted!"
redirect_to root_url
else
render ''static_pages/home''
end
end
def destroy
end
end
discussion board
<% content_for :script do %>
<%= javascript_include_tag ''hover_content'' %>
<% end %>
<li>
<div class = "intro-bar"><span class =
"intro"><%=discussion.intro
%></span></div>
<div class = "content-bar">
<span class = "content"><%= discussion.content
%></span>
<div class = "buttons">
<div class = "vote-neg"><%= link_to "Break
Up", signup_path,class:
"btn btn-large btn-breakup" %></div>
<div class = "vote-plus"><%= link_to "Stay
Together",
signup_path,class: "btn btn-large btn-staytogether" %></div>
</div>
</div>
</li>
<span class = "timestamp">
Posted <%= time_ago_in_words(discussion.created_at) %> ago.
</span>
<div class = "comments">
<% discussion.microposts.each do |micropost|%>
<li>
<div class = "post-comment"><%=
micropost.content%></div>
</li>
<% end %>
</div>
<% if signed_in? %>
<div class = "row">
<aside class = "span4">
<section>
<%= render ''shared/micropost_form'', :locals =>
{:discussion =>
discussion }%>
</section>
</aside>
</div>
<% end %>
micropost form partial
<% @micropost = Micropost.new %>
<% @micropost.discussion_id = discussion.id %>
<%= form_for(@micropost) do |f| %>
<%= render ''shared/error_messages'', object: f.object
%>
<div class="field">
<%= f.text_area :content, placeholder: "Compose new
micropost..." %>
</div>
<%= f.hidden_field :discussion_id, discussion.id%>
<%= f.submit "Post", class: "btn btn-large
btn-primary" %>
<% end %>
thanks!
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On 21 June 2013 20:17, <nick-3JddmTdh/8vQT0dZR+AlfA@public.gmane.org> wrote:> Hi everybody! > I''m currently in the process of writing my first ruby on rails app. I''m > quite new to the whole thing and I could use some help with an issue i''ve > been stuck on for a while. > > The goal here is to crease a discussion board where users can comment with > microposts. Very simple. The issue is that I am getting the error > > NameError in Discussions#index > > undefined local variable or method `discussion'' for > #<#<Class:0x00000103eb4e08>:0x00000103e78bb0>You have failed to show us two vital things, firstly which line of code the error occurs at, look in the server terminal window and you should see the full message and call stack. It should tell you which line of your code is generating the error. Secondly you have not told us the relations between the models (has_many, belongs_to etc). If you do not understand what that means then I suggest starting with a good tutorial such as railstutorial.org (free to use online) which will show you the basics of rails. In fact I suggest working right through a tutorial before starting your own app even if you do understand what I mean. Also read (and make sure you understand) the Rails Guides. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAL%3D0gLvDcGMfupG%3DV65GanphsSx3iXv_Y4WQX7txEw6OpEWP%3DQ%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
Change this line: @discussions = @user.discussion.paginate(page: params[:page]) for @discussions = @user.discussion*s*.paginate(page: params[:page]) El viernes, 21 de junio de 2013 14:17:31 UTC-5, ni...-3JddmTdh/8vQT0dZR+AlfA@public.gmane.org escribió:> Hi everybody! > I''m currently in the process of writing my first ruby on rails app. I''m > quite new to the whole thing and I could use some help with an issue i''ve > been stuck on for a while. > > The goal here is to crease a discussion board where users can comment with > microposts. Very simple. The issue is that I am getting the error > NameError in Discussions#index > > undefined local variable or method `discussion'' for #<#<Class:0x00000103eb4e08>:0x00000103e78bb0> > > I''m sure the fix is quite simple. Here''s the relevant code > > discussion controller > > class DiscussionsController < ApplicationController > > before_filter :signed_in_user, only: [:index, :edit, :update] > > > > > def show > > @user = User.find(params[:id]) > > @discussions = @user.discussion.paginate(page: params[:page]) > > @microposts = @user.micropost.paginate(page: params[:page]) > > > end > > > def index > > @discussions = Discussion.all > > end > > > def create > > @discussion = current_user.discussions.build(params[:discussion]) > > if @discussion.save > > flash[:success] = "Discussion Started!" > > redirect_to root_url > > else > > render ''static_pages/home'' > > end > > end > > > def destroy > > end > > > def edit > > end > > > def update > > end > > > def new > > end > > end > > > micropost controller > > class MicropostsController < ApplicationController > > before_filter :signed_in_user, only: [:create, :destroy] > > > def index > > end > > > def create > > @discussion = current_user.discussions.new > > @micropost = current_user.microposts.build(params[:micropost]) > > if @micropost.save > > flash[:success] = "Posted!" > > redirect_to root_url > > else > > render ''static_pages/home'' > > end > > end > > > def destroy > > end > > end > > > discussion board > > <% content_for :script do %> > > <%= javascript_include_tag ''hover_content'' %> > > <% end %> > > > > > <li> > > <div class = "intro-bar"><span class = "intro"><%=discussion.intro > %></span></div> > > <div class = "content-bar"> > > <span class = "content"><%= discussion.content %></span> > > <div class = "buttons"> > > <div class = "vote-neg"><%= link_to "Break Up", signup_path,class: > "btn btn-large btn-breakup" %></div> > > <div class = "vote-plus"><%= link_to "Stay Together", > signup_path,class: "btn btn-large btn-staytogether" %></div> > > </div> > > </div> > > </li> > > > <span class = "timestamp"> > > Posted <%= time_ago_in_words(discussion.created_at) %> ago. > > </span> > > > <div class = "comments"> > > <% discussion.microposts.each do |micropost|%> > > <li> > > <div class = "post-comment"><%= micropost.content%></div> > > </li> > > <% end %> > > </div> > > > <% if signed_in? %> > > <div class = "row"> > > <aside class = "span4"> > > <section> > > <%= render ''shared/micropost_form'', :locals => {:discussion => > discussion }%> > > </section> > > </aside> > > </div> > > <% end %> > > micropost form partial > <% @micropost = Micropost.new %> > <% @micropost.discussion_id = discussion.id %> > > > <%= form_for(@micropost) do |f| %> > <%= render ''shared/error_messages'', object: f.object %> > <div class="field"> > <%= f.text_area :content, placeholder: "Compose new micropost..." %> > </div> > <%= f.hidden_field :discussion_id, discussion.id%> > > <%= f.submit "Post", class: "btn btn-large btn-primary" %> > <% end %> > > > > > thanks! >-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/3bb124eb-f280-4686-b079-741057743a9e%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.