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Rails with Active Record and Action Pack

Rails with Active Record and Action Pack

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9.0/10 (Our Score)
Product is rated as #6 in category Ruby On Rails

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. …

Instructor Details

Kalman Hazins is a part-time lecturer with the Engineering for Professionals program at the Johns Hopkins University. He earned his B.S. in Computer Science from the University of Maryland, Baltimore County, in 2000 and then went on to earn a M.S. with Honors in Computer Science from the Johns Hopkins University in 2004. He has worked as a software developer for many years, most recently at the Johns Hopkins University Applied Physics Laboratory, where he was a member of the Senior Professional Staff, and Envieta Systems, LLC, as a Senior Software Developer. Kalman enjoys teaching Computer Science and has taught courses spanning the topics of Java 2 Enterprise Edition, Ajax development, and Ruby on Rails. Kalman lives in Baltimore with his wife and four children.

Specification: Rails with Active Record and Action Pack

Duration 18 hours
Year 2015
Certificate Yes
Quizzes Yes

50 reviews for Rails with Active Record and Action Pack

3.9 out of 5
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  1. Avatar

    Edgar J S R

    After this course you’ll be able to develop a functional web app using Rails’ build–in database. Now you can produce your own data using all the options Rails has to offer; that’s nice because you don’t depend on external API’s to get the back–end stuffs. Recommended!

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  2. Avatar

    Kat T

    Wonderful course. Thorough instructions with a great level of detail. Great assignments that reinforce the lessons. Would recommend to anyone wanting to learn about Ruby on Rails specifically or Web Development generally.

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  3. Avatar

    Qun X L

    Learn a lot of new knowledge from this course. knowledge points clear, assignment workload OK. This is the good place to learn Active Record and Action Pack.

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  4. Avatar

    Irini K P

    I learned a lot from the course. The instructions of the last exercise could be less detailed, so as it would be more challenging

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  5. Avatar

    Vinay J

    Seems tough…though interesting !!

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  6. Avatar

    Dan P

    Totally unimpressed. Video lectures are terrible. Explanations are at best incomplete, usually confusing, sometimes incoherent. Instructor never gives an overview of the architecture/data flow/structure of Active Record or Action Pack, instead describes the syntax of a handful of functions. As a result you only get the most superficial understanding of the material. The graded assignments are just a regurgitation of the lectures and so don’t require you to take a deeper dive into the material. In fact, in many cases the answers to the graded assignments are listed in the assignment immediately following the question.

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  7. Avatar

    Dan S R

    Very intensive, a lot of work on assignments but at the end very happy to done this…

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  8. Avatar

    Ramon C D

    Great course! A great help to put you on your feet with Ruby on Rails development!

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  9. Avatar

    Yaroslav T

    Very useful, nice practical asssignments

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  10. Avatar

    Subhrajit D

    Excellent !

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  11. Avatar

    Asfand Y A R

    Amazing course, i had complete Ruby on Rails tutorial by Michael Hartl and i was still doubtful about alot of things but i think this course has put me on the right path and now im really confident and i think i will go all the way, Johns Hopkins university courses are amazing, very good for learning. I highly recommend it to anyone wants to learn Ruby on Rails.

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  12. Avatar

    Paolo P

    very good course. It has helped me a lot to understand critical ruby on rails concepts.

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  13. Avatar

    carlos g

    great professor great course

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  14. Avatar

    vignesh k

    Thank you once again for this wonderful course

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  15. Avatar

    Ronald S

    Thank you so much, i learnt a lot in this course

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  16. Avatar

    Eimantas U

    Course needs updating

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  17. Avatar

    hina g

    All important topics are covered

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  18. Avatar

    sayed a e

    great course thanks

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  19. Avatar

    Vitalij

    It was difficult to follow, because of all the screenshots without live programming. I think it would be more easier to understand if the course wouldn’t consist only of pics.

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  20. Avatar

    Deyvison d P P

    I’m very happy with the course, that was awesome to learn a lot and increase my knowledge with Ruby on Rails

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  21. Avatar

    The S f D

    great course, good mid/advanced overview of Rails

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  22. Avatar

    Vishal B

    Good introductory course!!

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  23. Avatar

    Intellisys

    This course teach me a lot of complex things like authentication, nested resources and authorization. This is a great course for someone that want to learn Rails

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  24. Avatar

    Scott N

    Was great to understand how to use/implement Active Record in Rails

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  25. Avatar

    Joana D L

    Excelent course! Learned a lot! Thank you Professor 🙂

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  26. Avatar

    Alejandro E

    Great course with excellent attention to detail.

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  27. Avatar

    Ania M

    The course is very good. The only feedback I have is that it seems as though a lot of Windows users have to struggle with setting up the assignment environments and have to seek guidance from outside sources (e.g. Stack Overflow) for get the issues resolved.

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  28. Avatar

    DUTENGJIE

    I learned so many knowledge from this course, not just the Rails , I also have comprehend the ruby , the ruby–gems and the HTTP/REST protocol. and the assignments are not particularly difficult for the beginners like me.

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  29. Avatar

    Vivek G

    As good as Course 1, grate learning experience ! Thank You professor for this excellent course…

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  30. Avatar

    Sarah H

    I have worked with rails for sometime then stopped for a while and after that I took this course as a refreshment, and t really worth the time, actually I learned some new stuff that I did not came across before

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  31. Avatar

    Derek H

    This course is much better than the previous course “Ruby on Rails: An Introduction”. If you struggled through the first class, this one is much more user friendly and easy to go along with.This is definitely a Rails course, with the first course being a Ruby course. The professor’s audio issues are much less pronounced in this course and less noticeable. The lectures are not as monotone and boring to listen to as well. The modules are broken down into better sections that flow together. The materials, though older, can still be followed and course materials can be used. There has been at least some updates for newer versions of Ruby, Rails, and gems. The assignments go with the course lectures and many of the examples can point you in the right direction. The assignments are not direct copies of the lectures with many items needing to be modified to accommodate for the assignment requirements. Each module is a take/variation of the previous assignment, which is nice because you get a better sense of how they are working together. The RSPEC files are much better at actually pointing you towards what your issues are. The Wiki site has more beneficial Q/A. With the assignment time estimates, I found that I usually had to double the higher estimates for the amount that I would spend on each one. One of the problems with this course is that the assignment files seem to be written by multiple people. They can be very confusing at times, hard to follow. Because the assignments are written in this way, some things will break but are fixed in later steps, though you will not know that they are fixed later after you spend time trying to fix the issues so RSPEC or the Web test will pass. Another problem with the course has to do with Rails in general. It has some weird conventions and tries to be “Too helpful” at times. You will still have to use Google to figure out what the correct convention is and maybe why some things are done.

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  32. Avatar

    Nicolas S V

    Good tips for the double AA.

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  33. Avatar

    Boulate K

    Well taught and very interactive. I recommend this to every one interested in understanding the core concepts of rails

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  34. Avatar

    Yifei H

    This is a great course. I had no knowledge in Ruby and web development before this course (I skipped Intro to Rails course which is the first in this specialization). This course has very well designed coding assignment with tests written in RSpec. All four coding assignments all build upon the previous one, so there is no context switch, and they together build up Todo List App. I love the fact this course is very focused on MVC of Rails. I would recommend it to anyone who would love to learn Rails and MVC pattern.

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  35. Avatar

    Ryan D

    2 things are cerating if you take this course, – you will hate it when you take it. – you will LOVE it when it’s over. You will really like where it takes you when it gets over and make you feel really good on how much your skills have improved.

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  36. Avatar

    Xuliang S

    Course staff does not respond to questions that I posted on the forum.

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  37. Avatar

    Takayuki K

    This course was tough. The content of lectures are great but autograder of assignments is too bad. It was very stressful for me to use autograder till I can get used to it.

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  38. Avatar

    Milan T

    hard but great course

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  39. Avatar

    Daichi Y

    It was an awesome course! There is just one thing; the versions of Ruby and Ruby on Rails look to be a bit out–dated. Thank you!

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  40. Avatar

    Ameer H B

    Beautiful course. Everything is explained much clear. Easy to understand and easy to learn too

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  41. Avatar

    eighty

    A detailed, thorough journey through Rails’ model, view, controller framework. I took this after the popular Rails tutorial, which served as a great intro. I learned a huge amount about the main components of Rails – Active Record, Action Controller and Action View. There are no boring code–along videos, just concise lectures with slides and assignments. This course is not really for beginners. It’s challenging, just because of the many potential technical issues you can run into with Ruby, Rails, databases, servers and tests. I recommend having at least six months of programming studies behind you before diving into this course. The previous course in the series is also a must – even if you think you already know the basics, you’ll have important stuff reinforced.

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  42. Avatar

    Nguyen M H

    Active Record is so useful! I’m trying my best to learn all lectures.

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  43. Avatar

    Dmitri B

    Really needs updating.

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  44. Avatar

    Walter J K

    Excellent!

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  45. Avatar

    Ritesh K

    wonderful technology… more I learned, the more I loved it..!

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  46. Avatar

    Assain

    It’s a nice course, learnt stuff about rails that I didn’t earlier.

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  47. Avatar

    Sandor I

    Nicely put together, the right amount of challenging assignments. Min point: For me the assignments are underestimated.

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  48. Avatar

    James H

    Poor maintenance of assignments make them a chore to set up.

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  49. Avatar

    Ted H

    I really enjoyed this course! The lecturer was excellent and covered everything thoroughly. The main problem was ensuring an older version of Ruby on Rails was installed (especially for Windows). Make sure you spend a lot of time at the beginning installing Rails 4.2.8 – otherwise you’ll always have trouble getting the automated grader to accept your assignments. For the same reason you will have to constantly adjust the Gem versions in your Gemfile.

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  50. Avatar

    Nehal K

    Really good course, please update the assignment version though. It becomes difficult to setup environment

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