shunchu

t = 236 # seconds
Time.at(t).utc.strftime("%H:%M:%S")
=> "00:03:56"

# Reference
# http://stackoverflow.com/questions/3963930/ruby-rails-how-to-convert-seconds-to-time

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

eparreno

How to delete Sidekiq jobs in a Rails app using ActiveJobs

Sidekiq jobs can be enqueued or scheduled. Enqueued means that they are gonna be picked up as soon as possible, scheduled jobs will be enqueued at some specific time.

job_id and jid

When using ActiveJobs, Rails will return a job_id after sending the job to ActiveJobs

job = UserMailer.send_invite(params).deliver_later

aembleton

Converting a Word Document to Markdown in One Move

The Problem

A lot of important government documents are created and saved in Microsoft Word (*.docx). But Microsoft Word is a proprietary format, and it's not really useful for presenting documents on the web. So, I wanted to find a way to convert a .docx file into markdown.

Installing Pandoc

On a mac you can use homebrew by running the command brew install pandoc.

The Solution

awesome

# UPDATE: Ruby 2.0.0 https://docs.ruby-lang.org/en/2.0.0/Kernel.html#method-i-__dir__

# $ ruby -v
# ruby 2.6.3p62 (2019-04-16 revision 67580) [x86_64-darwin18]
# $ pwd
# /Users/dev/Documents/Github/Gists/awesome/
# $ echo "puts __dir__" > how-to-get-the-directory-of-the-current-file-using-ruby-2-0-0.rb
# $ cat how-to-get-the-directory-of-the-current-file-using-ruby-2-0-0.rb
# puts __dir__
# $ ruby how-to-get-the-directory-of-the-current-file-using-ruby-2-0-0.rb

redrick

#Model 

expect(@user).to have(1).error_on(:username) # Checks whether there is an error in username 
expect(@user.errors[:username]).to include("can't be blank")  # check for the error message 

#Rendering
expect(response).to render_template(:index)

#Redirecting 
expect(response).to redirect_to(movies_path)

sosedoff

require "json"
require "digest"
require "logger"

class SlowQueryLogger
  def initialize(output = nil, opts = {})
    # will log any query slower than 500 ms
    @threshold = opts.fetch(:threshold, "500").to_i

    @logger = Logger.new(output || STDOUT)

chucai

# update application.rb 
# config.middleware.insert_before(ActionDispatch::Static, TracePoint::Middleware)
class TracePoint
  class Middleware

    def initialize(app)
      @app = app
    end

    def call(env)

lawrencejones

_ = require 'underscore'

# Given an array of elements ELEM and a matching KEY value,
# will build the apprpriate projection to generate sortable
# weights for a mongo aggregator.
#
#   ELEM: An array of values upon which to match against KEY
#   KEY:  The document field key to match against
#   I:    Default 0, index into array at which to begin
#

WaKeMaTTa

Navigating

visit("/projects")
visit(post_comments_path(post))

Clicking links and buttons