user_id：无（在Heroku上的Rails应用程序中发布评论时）

Question

My app is giving me an error when I try to view show page. Here is the error:

2014-04-23T03:26:23.544575+00:00 app[web.1]: ActionView::Template::Error (undefined method     `image' for nil:NilClass):
2014-04-23T03:26:23.544575+00:00 app[web.1]:     1: <%= div_for(comment) do %>
2014-04-23T03:26:23.544575+00:00 app[web.1]:     2:     <%= h(comment.body) %>
2014-04-23T03:26:23.544575+00:00 app[web.1]:     3:     <p class="comments">
2014-04-23T03:26:23.544575+00:00 app[web.1]:     4:         <strong>Posted <%=     time_ago_in_words(comment.created_at) %> ago by <%= image_tag comment.user.image, class:     "smallpic_comment" %><%= comment.user.name %></strong></br>
2014-04-23T03:26:23.544575+00:00 app[web.1]:     5:     </p>
2014-04-23T03:26:23.544575+00:00 app[web.1]:     6:     <% if user_signed_in? %>
2014-04-23T03:26:23.544575+00:00 app[web.1]:     7:         <% if current_user == comment.user || current_user.admin? %>    

Whats happening is that when the app tries to display the show view, it looks at a section I display at the bottom for comments. For some reason, the comments are now posting with user_id:nil. It works fine locally. Here's my comment controller:

def create
@pin = Pin.find(params[:pin_id])
@comment = @pin.comments.create(params[:comment])
@comment.user = current_user

MyMailer.comment_email(@pin.user).deliver

respond_to do |format|
  if @comment.save
    format.html { redirect_to @pin, notice: 'Comment was successfully created.' }
    format.json { render json: @comment, status: :created, location: @comment }
  else
    format.html { render action: "new" }
    format.json { render json: @comment.errors, status: :unprocessable_entity }
  end
end
end     

Comment Model:

class Comment < ActiveRecord::Base
 attr_accessible :body, :pin_id, :author
 belongs_to :pin
 belongs_to :user
end

I assume it has some issue all of a sudden with @comment.user = current_user.

I appreciate any help, and let me know if you need more info. Here is the live site: www.thetens.us and github: https://github.com/Tambe257/thetens

Answer 1

My mailer information has changed and when teh app tries to email, it can't send. Because the controller tries to execute the email when it saves the post, it's corrupting the file that it's saving.

I commented out the mailer temporarily until I fix that issue and it works fine now.

def create
@pin = Pin.find(params[:pin_id])
@comment = @pin.comments.create(params[:comment])
@comment.user = current_user

#MyMailer.comment_email(@pin.user).deliver

respond_to do |format|
  if @comment.save
   format.html { redirect_to @pin, notice: 'Comment was successfully created.' }
   format.json { render json: @comment, status: :created, location: @comment }
  else
 format.html { render action: "new" }
 format.json { render json: @comment.errors, status: :unprocessable_entity }
 end
end
end