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Back to Rails with Active Record and Action Pack

Learner Reviews & Feedback for Rails with Active Record and Action Pack by Johns Hopkins University

766 ratings
162 reviews

About the Course

You already know how to build a basic web application with the Ruby on Rails framework. Perhaps, you have even taken Course 1, "Ruby on Rails: An Introduction" (we highly recommend it) where you relied on external web services to be your “data layer”. But in the back of your mind, you always knew that there would come a time when you would need to roll up your sleeves and learn SQL to be able to interact with your own relational database (RDBMS). But there is an easier way to get started with SQL using the Active Record Object/Relational (ORM) framework. In this course, we will be able to use the Ruby language and the Active Record ORM framework to automate interactions with the database to quickly build the application we want. In Rails with Active Record and Action Pack, we will explore how to interact with relational databases by using Active Record, a Ruby gem, which Rails uses by default for database access. We will then take a look at what role Active Record plays in the overall request-response cycle, when a client (the browser) requests data from the server, as well as how to submit the data to the server. Of course, when accessing data, security is of paramount importance! We will talk about vulnerabilities such as SQL injection, as well as how to secure access to data by authenticating and authorizing users accessing the data. Take this course to build a Ruby on Rails application with Active Record to automate the detailed SQL interactions with our database....

Top reviews

Aug 10, 2016

A nice continuation to course 1 of this specialization, deeper dive into RoR, among other things you will learn how to manipulate/display database data and how to authenticate/authorize users!

Dec 16, 2015

Great explanation of not so easy to understand concepts. Lecturer provides good example that can help material better and see how what you've learned can be applied to real world scenarios.

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76 - 100 of 155 Reviews for Rails with Active Record and Action Pack

By Pablo M G

Jan 29, 2017

As good as Course 1, grate learning experience

By Paul B

Sep 16, 2016

This is a well organized and excellent course.

By Omar S

Sep 11, 2016

Again a very helpful course. Thanks very much.

By Thomas L

Jan 18, 2017

Great follow up course on Ruby programming!

By Sreedharrao V R

Nov 23, 2016

Very good course for basic web frame work .

By Marcio F

Dec 5, 2016

It was so helpful!

I recommend this course.

By iosifescu s

May 16, 2016

Very interesting and very well presented!

By Yaroslav T

Apr 23, 2017

Very useful, nice practical asssignments

By Javier G H

Mar 25, 2016

Great course for intermediate level!

By Jorge R

Dec 9, 2015

Great Material and clear example !!!

By Maxim D

Jan 10, 2016

really superior course. thank you

By Zach T

Dec 3, 2015

awesome course, nails the basics!

By hina g

Jun 20, 2017

All important topics are covered

By Fernando P

Nov 5, 2016

funny and challenging course!!

By Nicolas S V

Mar 30, 2018

Good tips for the double AA.

By carlos g

May 3, 2017

great professor great course

By Vishal B

Aug 12, 2017

Good introductory course!!

By Juan R G S

Mar 12, 2016

It is a very good course!

By Igor T

Jan 4, 2016

Enough to start I hope:)

By Milan T

Oct 20, 2018

hard but great course

By Riccardo V

Feb 28, 2016

well done!

thank you!

By sayed a e

Jul 3, 2017

great course thanks

By Tega O

Feb 9, 2016

I loved the course.

By Alvaro A

Sep 24, 2020

everything is good

By ram k k

Sep 28, 2016

good concept clear