eamonn-webster

class TimeoutError < StandardError
end

# used to prevent code running on the same object twice
def answer
  begin
    eq = EnrollmentQuestion.find_by_enrollment_id_and_question_id(@enrollment.id, @question.id)
    Lock.new(eq,0).synchronize do
      if @enrollment.is_valid_attempt?(@question)
        ...

eamonn-webster

# Gemfile 
# gem 'rack-mini-profiler'

# config/environment.rb

if Rails.env.development?
  # profile all middleware
  Qstream::Application.middleware.each do |mw|
    begin
      ::Rack::MiniProfiler.profile_method(mw.klass, :call) {|app| "#{mw.klass} call"}

eamonn-webster

# load all migrations
Dir[Rails.root.join('db/migrate/*.rb')].each { |f| require f }

#find the trove migrations classes
# and the corresponding file
# sort by file
# instantiate
# and invoke change
# rescuing from any exception.

eamonn-webster

# could get a speed up if we initialized to 1 instead of 0
# but then we would have to compute all, no way to lazy compute.
# where ar we using the value?


def set_question_records_attempt_2(enterprise_id)
  previous_enrollment_id = nil
  previous_question_id = nil
  attempt = 0
  QuestionRecord.where(enterprise_id: enterprise_id).where('enrollment_id is not null').order(:enrollment_id, :question_id, :created_at).each do |qr|

eamonn-webster

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console