seanmarcia

Powertools, Tips, and Tricks Notes:

User experience monitoring tools:

• Fullstory - JS you drop on your page that records user session.
  • Integrates with other services (like bugsnag) so, for example, when you see an error appear in bugsnag you can go and watch to see how the user created that error.
  • Is an external service that you need to log in to to view user sessions/videos/etc.
• Ahoy - User metrics on which parts of your app they are interacting with.
  • You have full control of the data it records -- you can send it to your database, kinesis, etc.
• Heroku sends data through a proxy (if you are worried about adblockers preventing you from getting user metrics) and then feeds the info into segment.io

cupakromer

# Original: http://media.pragprog.com/titles/ruby4/code/metaprogramming/trace_calls.rb
#
# Modified to enforce opinionated predicate responses.
# Go buy and read the book!
# Note: This is **not** thread safe.
module BoolOnlyPredicates
  def self.included(klass)
    klass.instance_methods(false).each do |existing_method|
      wrap(klass, existing_method)
    end

apprentice1988

require 'net/http'

AWS::S3::Base.establish_connection!({
  access_key_id: 'your-access-key-id',
  secret_access_key: 'your-secret-access-key'
})

# Use the Google Logo as an example
#
url = URI("https://www.google.com/images/srpr/logo3w.png")

t2

ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
 html = %(<div class="field_with_errors">#{html_tag}</div>).html_safe
 # add nokogiri gem to Gemfile
 elements = Nokogiri::HTML::DocumentFragment.parse(html_tag).css "label, input"
 elements.each do |e|
   if e.node_name.eql? 'label'
     html = %(<div class="clearfix error">#{e}</div>).html_safe
   elsif e.node_name.eql? 'input'
     if instance.error_message.kind_of?(Array)
       html = %(<div class="clearfix error">#{html_tag}<span class="help-inline">&nbsp;#{instance.error_message.join(',')}</span></div>).html_safe

dhh

# autoload concerns
module YourApp
  class Application < Rails::Application
    config.autoload_paths += %W(
      #{config.root}/app/controllers/concerns
      #{config.root}/app/models/concerns
    )
  end
end