Chevron Left
返回到 Rails 的 Active Record 与 Action Pack

學生對 约翰霍普金斯大学 提供的 Rails 的 Active Record 与 Action Pack 的評價和反饋

733 個評分
154 個審閱


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....



Aug 11, 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 17, 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.


51 - Rails 的 Active Record 与 Action Pack 的 75 個評論(共 147 個)

創建者 Jorge R

Dec 09, 2015

Great Material and clear example !!!

創建者 Zach T

Dec 04, 2015

awesome course, nails the basics!

創建者 Moez B

Aug 09, 2016

Excellent course. Great lectures, great instructor, and fun assignments. Looking forward to the next course in the specialization.

創建者 Serhii S

Oct 28, 2016

It was so uneasy to get through this course. But I like it!

創建者 Riccardo V

Feb 28, 2016

well done!

thank you!

創建者 Michael L

Jan 30, 2016

A good overview of action pack and active record. Thanks for your effort dear course creators.

創建者 Balaji N

Feb 08, 2016

I love it

創建者 Sarah W

Mar 07, 2016

Awesome! Learned a lot, and the instructor helped me promptly when I ran into an issue on the homework. Great class!

創建者 ena

Mar 03, 2016


創建者 Ram K K

Sep 28, 2016

good concept clear

創建者 The S f D

Aug 10, 2017

great course, good mid/advanced overview of Rails

創建者 Nikita L

Dec 17, 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.

創建者 Joseph M M

Aug 09, 2016

Awesome course that took us to database learning and how they interact with rails application. A lot of stuff learned.

創建者 Maxsuel F M

Jul 18, 2016

This course is awesome, even to who know a little about Ruby on Rails. There are much tips to help you develop a good application.

創建者 Sukanya S

Dec 10, 2015

Thank you Prof. Kalman Hazins. I like your course very much. It is useful and filled with a lot of information. Thank you for your hard work. I'm really appreciated it. Hope you have more courses on Coursera.

創建者 samacitta

Nov 14, 2015

Thorough, excellent coverage of the the subject. Well worth your time.

創建者 Scott N

Sep 03, 2017

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

創建者 Ronald S

Jun 05, 2017

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

創建者 Javier G H

Mar 25, 2016

Great course for intermediate level!

創建者 Joe A

Sep 18, 2016

A little challenging for Ruby beginners but extremely rewarding

創建者 Vern

Jan 07, 2017

Great program. Well structured, with lots of additional resources that make for easier self-study. Videos are just the right length to provide the knowledge without being too long and too filled with details. All in all, this is an excellent 2nd course in my Ruby on Rails Web Development skills development.

創建者 Max D

Jan 10, 2016

really superior course. thank you

創建者 Tega O

Feb 09, 2016

I loved the course.

創建者 Valdyn H

Mar 20, 2016

Excellent course, good combination of broad strokes and practical, specific tips.

創建者 Dmitry G

May 11, 2016

Very good course!