Luis Daher luisdaher

$ sudo apt-get update
$ sudo apt-get install unzip wget
$ wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip
$ unzip ngrok-stable-linux-amd64.zip
$ sudo mv ./ngrok /usr/bin/ngrok
$ ngrok

Please visit https://asistencia.in/blogs/1-mysql-5-5-installation-guide

Thank you

Date and Time comparisons in ActiveSupport

Question: How do we safely compare a date to an unknown value within a Rails application? Example: params[:date_field] > 2.years.ago

Doing a bit of digging, it looks like 2.years.ago returns an instance of ActiveSupport::TimeWithZone. In ruby, whenever you do a comparison of any sort ruby will follow the rules outlined in the Comparable module of stdlib.

ActiveSupport::TimeWithZone will create a instance of Time in a UTC time zone when doing comparisons with ActiveSupport::TimeWithZone#<=>.

Sending emails with ActionMailer and Sidekiq

Send email asynchroniously using Sidekiq.

ActionMailer

Create your mailer us usual:

Title

<Additional information about your API call. Try to use verbs that match both request type (fetching vs modifying) and plurality (one vs multiple).>

URL

<The URL Structure (path only, no root url)>
Method:

	#!/bin/bash
	echo "starting check sidekiq"

	process=`cat /path-to/sidekiq.pid`

	processConfirmation=`ps aux \| awk '{print $2 }' \| grep $process`

	if [ -z $processConfirmation ]
	then
	echo "oops! not running... restarting sidekiq"

	cd ~
	##If you want to install OpenJDK
	#sudo apt-get update
	#sudo apt-get install openjdk-8-jre-headless -y

	###Or if you want to install Oracle JDK, which seems to have slightly better performance
	sudo add-apt-repository ppa:webupd8team/java
	sudo apt-get update
	sudo apt-get install oracle-java8-installer