ruby-on-rails-3.2

I've been using turbolinks along this year but lately I'm getting this annoying bug. Images uploaded via carrierwave are loaded in the site with absolute URL's in the first request, but when you start browsing in the site via turbolinks, all carrierwave images change to relative paths. <%= image_tag "image.jpg %> elements work ok, but the images are loaded as CSS background-image, they don't appear. This apparently happens only on chrome (I have Versión 31.0.1650.57 m). I made a trace via console and all images are loaded in the document, so I went to the Inspector and disabled/enabled the

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. def index @cellphones = Cellphone.all respond_to do |format| format.html # index.html.erb format.json { render json: @cellphones } end SIMPLE ANSWERS PLEASE... what is format.json used for? do I have to create a view for it? how does it relate to javascrip ?

I just got done setting up my rails environment on my old mac book and ran into this error. I've installed FFI and rb-inotify. I've also ran bundle install again. I've looked at https://github.com/ffi/ffi/issues/66 and https://groups.google.com/forum/?fromgroups=#!topic/ruby-ffi/gj3_k34o80k which both indicate that this is a linux specific API. There is a suggestion on the second of those links that says I should just remove that gem and things that depend on it, but I am hesitant to remove FFI which seems to depend on it. What course of action do you suggest? Any advice on this matter is

This seems like it should be simple, but I can't seem to find a straight answer. I have added a csv mime-type, and the following seems to work, except that the downloaded file is always named "report.csv". In my controller: def report respond_to do |format| format.html format.csv do render :template => "summary/report.csv.erb", :filename => "foo" #doesn't work end end end I think it's using the default renderer (I haven't implemented an alternate renderer), but I can't seem to find complete docs on the options available. Isn't there something like a "filename" option or something that I can

There are different kinds of users in my system. One kind is, let's say, a designer: class Designer < ActiveRecord::Base attr_accessible :user_id, :portfolio_id, :some_designer_specific_field belongs_to :user belongs_to :portfolio end That is created immediately when the user signs up. So when a user fills out the sign_up form, a Devise User is created along with this Designer object with its user_id set to the new User that was created. It's easy enough if I have access to the code of the controller. But with Devise, I don't have access to this registration controller. What's the proper way

I have been trying to render one of my partials in a helper function located within my controller. The first issue I encountered was that the helper was returning the each loop instead of the result of the loop. To remedy this I attempted to have it return a string containing the results of the loop. def display_replies(comment) if comment.replies.count > 0 string = "" comment.replies.each do |reply, index| string = string + (render partial: "comment", locals: {index: index}).to_s.html_safe end string end Called in View with <%= display_replies(reply) %> When I look at my view, what is