alexdesi

Sometimes, this error occurs when I run a rails app on my local:

```
ActionView::Template::Error (Webpacker can't find media/images/...
1. You want to set webpacker.yml value of compile to true for your environment
   unless you are using the `webpack -w` or the webpack-dev-server.
2. webpack has not yet re-run to reflect updates.
3. You have misconfigured Webpacker's config/webpacker.yml file.
4. Your webpack configuration is not creating a manifest.
Your manifest contains:

alexdesi

# THIS IS WIP, NOT FULLY WORKING

class MiniStateMachine

  # [initial_statuses, event, next_status]
  @transitions = [
    [[:s1, :s2], :event1, :s3],
    [[:s3],      :event2, :s4],
    [[:s1, :s2], :event3, :s5]
  ]

alexdesi

require 'date'
require 'csv'

def array_hash_to_csv(data, filename = "data.csv")
  CSV.open(filename, "wb") do |csv|
    csv << data.first.keys
    data.each do |hash|
      csv << hash.values
    end
  end

alexdesi

VCR.turned_off(:ignore_cassettes => true) do
  VCR.use_cassette('cassette') do
    ...
  end
end

alexdesi

# Found in http://stackoverflow.com/questions/10994396/sprockets-rails-find-all-files-sprockets-knows-how-to-compile
Rails.application.assets.each_file { |pathname| puts pathname}

alexdesi

user.attributes = { ... }
user.save_without_session_maintenance

alexdesi

h = {:a => 1, :b => 2 }
h[:c] = row.delete(:a).last

>> put h
>> {:c => 1, :b => 2 }

alexdesi

require 'factory_girl'
FactoryGirl.find_definitions

u = Factory.create(:user)

alexdesi

./script/runner 'require("./db/migrate/migration_name.rb").first.constantize.up'