...you already have stored files in the old structure) Checklist: Using Carrierwave in a Rails project
...page for more information on calculating sizes of databases or tables. Connect to a Rails database with bin/rails dbconsole -p...
t.column_name, :string t.remove :first_name t.remove :last_name t.rename :cool, :awesome end Rails 2 caveats Rails 2 does not understand the extra options hash but seems to build...
...only created when you rename columns. For other operations such as add and remove Rails 2 will still give you single ALTER statements. More See RobinWu's APIdock comment for...
...class DynamicStylesheetsController < ApplicationController def show logical_path = RELATIVE_PATH_TO_YOUR_TEMPLATE path = File.join(Rails.root, logical_path) template = Sass::Rails::SassTemplate.new(path) environment = YourApp::Application.assets context = environment.context_class.new(environment, logical_path...
task :script, roles: :app, only: { primary: true } do run "cd #{current_path} && RAILS_ENV=#{rails_env} bundle exec rails runner 'ScriptRunner.go'" end becomes desc 'Run script'
on primary :app do within current_path do with rails_env: fetch(:rails_env, 'production') do execute :bundle, 'exec', "rails runner 'ScriptRunner.go'" end end end end
...uses mocha. This note shows to use RSpec stubs and mocks instead. Rspec 1 / Rails 2 Put the following into your env.rb: require 'spec/stubs/cucumber' Rspec 2 / Rails 3
Ubuntu 12.04 LTS x64, Ruby 1.8.7, Rails 2.13, PDFKit 0.5.4, Phusion Passenger Apache 2 I ran into this, when I started using passenger to deal with the Single Thread Issue...
...wkhtmltopdf-amd64 /usr/local/bin/wkhtmltopdf sudo chmod +x /usr/local/bin/wkhtmltopdf Tell PDFKit where to find your wkhtmltopdf: Rails::Initializer.run do |config| require "pdfkit" config.middleware.use PDFKit::Middleware PDFKit.configure do |config| config.wkhtmltopdf = '/usr/local/bin/wkhtmltopdf' # <-- the fix...
...Commit using a story title from Pivotal Tracker geordi con[sole] [TARGET] # Open a Rails console locally or on a Capistrano deploy target geordi cu[cumber] [FILES] # Run Cucumber features...
...PATH # Optimize .png files geordi ra[ke] TASK # Run a rake task in several Rails environments geordi re[move-executable-flags] # Remove executable-flags from files that should not be...
...only of a single javascript file, so it does not trigger additional requests with rails it automagically provides user feedback by selecting the text it has copied it provides callbacks...
...modes like copying from a text field or from a data attribute How to (rails) Add clipboard.js to your project through bower or by downloading and adding the javascript file...
...up 20160517112656 Migrate pages to page versions up 20160518112023 ********** NO FILE ********** When you tell Rails to roll back, it tries to roll back the latest change that was migrated. In...
...have the corresponding migration file for. Hence, it can not be rolled back and Rails aborts silently. This happens for example when you migrated on the master branch at some...
...these helper methods to your ApplicationController: class ApplicationController < ActionController::Base private def integration_test? Rails.env.test? && defined?(Cucumber::Rails) end def observable_redirect_to(url) if integration_test? render :text => "If...
...entirely find out why, and we eventually did not care). This happened on a Rails 3.2 application and is likely to happen on Rails 4 applications as well. Your best...
...look at the filter chain in specs. You can do it like that on Rails 2: controller.class.filter_chain.map(&:method) Note that we need to look at the controller's class since...
...objects to scope down to only some of them: controller.class.filter_chain.select(&:before?).map(&:method) For Rails 3, do it like this (warning, ugly!): controller._process_action_callbacks.select { |c| c.kind == :before }.map(&:filter)
...following helper. def greeting message = ''.html_safe message << 'Welcome to ' message << content_tag(:span, Rails.env, class: 'greeting--location') content_tag :div, message, class: 'greeting' end That looks clumsy and is...
...say something like this? def greeting render_haml <<-HAML .greeting Welcome to %span.greeting--location = Rails.env HAML end It would be, and you can have it, too. You simply need to...
...like to split a Ruby array into pairs of two, you can use the Rails ActiveSupport method in_groups_of: >> [1, 2, 3, 4].in_groups_of...
...split a Ruby array into a given number of groups, you can use the Rails ActiveSupport method in_groups: >> [1, 2, 3, 4, 5, 6].in_groups...
top Also see: How to get a rough picture about a Rails project How to examine an unknown Ruby object
DETAIL: There is 1 other session using the database. This could be the rails server, rubymine and many more. Beside terminating the session connection manually you can also find...
...out the pid and kill the process. 1. rails db 2. SELECT * FROM pg_stat_activity; datid | 98359 datname | foo_development pid | 21633 usesysid | 16384 usename | username application_name | DataGrip...
...all styling inline, which means you'll have to do your styling inline. For Rails applications, you can use Roadie or premailer, which lets you keep your well-structured CSS...
...litmus during rendering. For a preview during develoment, you can also use your local Rails mailer previews. Take the preview HTML source and paste it to Litmus. When the builder...
SSHKit 1.9.0 might fail with the following error, when trying to deploy a Rail application. Upgrading the gem to version 1.21.0 fixed the issue. Traceback (most recent call last...
...scenario, the code below lets you write this: Given my IP address is 188.174.117.205 Rails 3 Given /^my IP address is "(.*?)"$/ do |ip| ActionDispatch::Request.any_instance.stub(:remote_ip).and_return(ip...
Rails 2 You will need the following step definitions: Given /^my IP address is (\d+\.\d+\.\d+\.\d+)$/ do |ip| ApplicationController.stubbed_request_ip = ip end After do ApplicationController.stubbed_request...
...ruby with something like user_ids = ActiveRecord::Base.connection.select_values(Message.select(:user_id).to_sql) # Rails 2 user_ids = Message.all.pluck(:user_id) # Rails 3+ User.where(:id => user_ids).update_all(:has...
You may disable multi-line autocomplete by using the --nomultiline commandline switch (for Rails, use bin/rails console -- --nomultiline), or specifying IRB.conf[:USE_MULTILINE] = false in your ~/.irbrc.
/^([\w!#$%&'*+-/=?^`{|}~]+.)*[\w!#$%&'*+-/=?^`{|}~]+@((((([a-z0-9]{1}[a-z0-9-]{0,62}[a-z0-9]{1})|[a-z]).)+[a-z]{2...
Note: In Rails 3+ you can use Array.wrap instead of the solution here. In the past you could use Array(...) or #to_a to turn an object into an array...
...you can copy the attached file to config/initializers or require it from a non-Rails project. You can now say: 5.listify # => [5] [5].listify # => [5] Note that this method no...