ruby-on-rails-3.1 – Tarik Billa

heroku run console returns ‘Error connecting to process’

April 12, 2024 by Tarik

I had the same problem, and although I did not solve the problem, I found a workaround. Instead of using: heroku run rake db:migrate You can use: heroku run:detached rake db:migrate This runs the command in the background, writing the output to the log. When it is finished you can view the log for the … Read more

What is the purpose of config.assets.precompile?

January 8, 2024 by Tarik

Most assets are automatically included in asset precompilation. According to the RoR Guide on the Asset Pipeline: The default matcher for compiling files includes application.js, application.css and all files that do not end in js or css: [ /\w+\.(?!js|css).+/, /application.(css|js)$/ ] You would use config.assets.precompile if you have additional assets to include: config.assets.precompile += [‘admin.js’, … Read more

When to create a new controller in rails

January 6, 2024 by Tarik

UPDATE: I highly recommend reading How DHH Organizes His Rails Controllers which pretty much explains it much better than my original answer. I think the question would be more suitable if you’d put it another way: Why do we need model (AR in this case) for every controller? And the answer of course is, you … Read more

Rails 3.1 absolute URL to an image

January 4, 2024 by Tarik

See the Using asset hosts section in the documentation. You need to specify an asset_host. You can also construct it dynamically from the request chaining “#{request.protocol}#{request.host_with_port}”

Reprocessing images in Carrierwave

January 3, 2024 by Tarik

According to the Carrerwave documentation you can use following commands: Model.all.each do |model| model.image.recreate_versions! end

Where to override current_user helper method of devise gem

January 2, 2024 by Tarik

According to the module Devise::Controllers::Helpers, current_user (together with all other devise helpers) is added to ApplicationController, which means that you can override it in this way: # in application_controller.rb def devise_current_user @devise_current_user ||= warden.authenticate(scope: :user) end def current_user if params[:user_id].blank? devise_current_user else User.find(params[:user_id]) end end

Rails Errno::EACCES Permission Denied

January 2, 2024 by Tarik

Update: Yeah this answer came from ignorance and then seemed to gain traction. Anyway, the real answer can be found in Austen Tomek’s answer Hacked around this by doing chmod 777 on the tmp directory so I am guessing it is my ignorance on the user/permissions settings.

How to disable ActionMailer in Development?

December 31, 2023 by Tarik

It’s common practice to just let Rails ignore the mail errors. In your config/environments/development.rb file add, uncomment or modify: # Don’t care if the mailer can’t send config.action_mailer.raise_delivery_errors = false You can also set this: config.action_mailer.perform_deliveries = false See the documentation here http://edgeguides.rubyonrails.org/action_mailer_basics.html#action-mailer-configuration You can also set the delivery method to :test, but I have … Read more

what does ?body=1 do in rails 3.1 asset pipeline?

December 27, 2023 by Tarik

Trawling through the Sprocket source code we find: # Returns a 200 OK response tuple def ok_response(asset, env) if body_only?(env) [ 200, headers(env, asset, Rack::Utils.bytesize(asset.body)), [asset.body] ] else [ 200, headers(env, asset, asset.length), asset ] end end body_only? is set when ?body=1 or true For a static asset, Asset.body is defined as: def body # … Read more