Tagged Questions

Ruby on Rails is an open source full-stack web application framework written in Ruby. It follows the popular MVC framework model and is known for its "convention over configuration" approach to application development.

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Heroku “We're sorry, but something went wrong” but works fine in the localhost

I am building a web app on Rails using Postgresql database and some gems. The app works fine on the localhost. But I deployed it to Heroku and this is where the problem begins. When I open the ...
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rake 0.8.7 db:migrate or db:seed runtime error, “stack level too deep”

Rake 0.8.7 Rails 2.3.18 RubyGems 1.7.2 I looked into the similar questions and they do not apply here: Not doing any recursion in the task Not using Bundler or RVM (if using bundler is the ...
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array of hashes to csv file

How do you convert an array of hashes to a .csv file that I can open in excel? I have tried CSV.open("data.csv", "wb") do |csv| @data.to_csv end but it opens up and is blank
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Heroku crashes on deploying Rails application

my Heroku logs 2013-06-26T16:08:48.700236+00:00 app[web.1]: from /app/config/environment.rb:5:in <top (required)>' 2013-06-26T16:08:48.699748+00:00 app[web.1]: from ...
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undefined method `model_name' for NilClass:Class - ruby on rails application

I have form where a user submit a e-mail, its in the view: views/about/home.html.haml The form looks like this: = form_for @waitinglist do |f| = f.email_field :email, placeholder: "Enter your ...
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Documentation on all of the plurals that rails generates/uses

Is there documentation on all of the common pluralizations that Rails uses and requires for their naming conventions? e.g. in this model I cannot use 'persons,' rather 'people' class Actor < ...
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Understanding how Rails migrations convert into raw SQL

I am trying to gain a better understanding of how rails migrations convert into raw SQL. Ideally I would like a tool that would take a rails migration file and display the raw SQL output. I have found ...
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Capistrano: How to deploy Sunspot Gems

I am having all kinds of issues trying to deploy sunspot to my local server. This is related to my previous question, however it would be very helpful if someone versed in Capistrano could verify the ...
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Action Mailer attachments.inline showing as normal attachment, not inline

def simple_mail(to, subject, body) attachments.inline['Logo.png'] = File.read( Rails.root.join("public", "Logo.png")) mail(:to => to, :subject => subject, :body => body) end I ...
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f.collection_select undefined method 'zip_id'

Somewhat new to rails and trying to build something to learn, but having an issue. I have successfully created one form field that reads from a collection of categories. I generated scaffolding for ...
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Multiple Expections in Rails Rspec test

I'm trying to test a ruby controller method, and I'm expecting multiple things to change in the database. context "With an unknown user" do let(:unknown_phone_number) { "0000000000" } subject ...
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Using routing (?) to make GET request in Rails so ID doesn't show

I have a link in one view myapp/locations that goes to myapp/statistics?id=1 (statistics for location with ID 1) which works fine but it doesn't look pretty. I think I've seen people do this sort of ...
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.find or where condition in active record querying

I am confused on where to use '.find' and where to use 'where'. is there a difference in the performance during the execution of the query ?? example : converted the existing queries which are using ...
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Unicorn not working in Heroku

I've deployed my Rails application to Heroku following https://devcenter.heroku.com/articles/rails3 and can open a website like http://severe-mountain-793.herokuapp.com According to the ...
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Unexpected exception in Dalli: ArgumentError: dump format error for symbol(0x46)

I am getting an error ie: Unexpected exception in Dalli: ArgumentError: dump format error for symbol(0x46) This is a bug in Dalli, please enter an issue in Github if it does not already exist. ...

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