The simplest way to test validates_attachment_file_name and validates_attachment_content_type configurations of the Rails model that has a
paperclip attachment is to use the allow_value method in the shoulda gem.
The following example uses rspec to demonstrate.
Will_paginate and Kaminari are both popular Ruby Gems for displaying and parsing pagination in a Ruby on Rails application. I won’t wade into the seething cauldron of debate about which is better suited for the task.
To center the will_paginate pagination links, do the follow.
<div class="pagniation-wrapper">
<%= will_paginate @accounts %>
</div>
Issues I have found when doing Ruby on Rails upgrades of Ruby version 1.8.7 to 2.2 or 2.1:
If you are using cloudfront with Heroku, chances are you will encounter some problems if you are using something like font-awesome. I won’t go into the details of how to setup cloudfont, but your heroku passenger should have the following. First, read the Passenger Documentation for Nginx configuration template.
These are the correct steps:
Do this in the root directory of your Rails application.
cp $(passenger-config about resourcesdir)/templates/standalone/config.erb config/passenger_config.erb
Let’s take a very simple Ruby hash with some US state abbreviations to their names
us_states = {
'AK' => 'Alaska',
'AL' => 'Alabama',
'AR' => 'Arkansas',
'AZ' => 'Arizona',
'CA' => 'California',
'CO' => 'Colorado',
'CT' => 'Connecticut'
}
I recently ran into this following code in a project that I inherited:
def get_company_doc_file(company_doc)
if Rails.env.development?
company_doc.company_file.path
else
company_doc.company_file.url
end
end
Recently, I have installed browserify-rails and react-rails together in the same Ruby on Rails project. This give the best of both worlds since I can still use the react_component helper provided by react-rails but use npm to manage my versions of different React.js components. However, if you install react-rails, make sure you do not run any of the generators.
In my last blog post, I covered Dead Simple provisioning for Ruby on Rails & MySQL with Vagrant and Centos 6.6
Let’s run through a similar config, only this time using PostgreSQL 9.4
One of the hardest things about getting started with Vagrant is the time it takes develop a good provisioning system for the virtual machine. Many people reach to Chef or Ansible too quickly and become overwhelmed by complexity. It was recently suggested that one start with a simple provision script.
I have been all over Capistrano 3 lately and found that it is sometimes easier to do things than I expect. Here is an example of a task I had to write, based on some other people’s StackOverflow comments.