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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

762 個評分
160 條評論


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.


76 - Rails 的 Active Record 与 Action Pack 的 100 個評論(共 153 個)

創建者 Paul B

Sep 16, 2016

This is a well organized and excellent course.

創建者 Omar S

Sep 12, 2016

Again a very helpful course. Thanks very much.

創建者 Thomas L

Jan 18, 2017

Great follow up course on Ruby programming!

創建者 Sreedharrao V R

Nov 24, 2016

Very good course for basic web frame work .

創建者 Marcio F

Dec 05, 2016

It was so helpful!

I recommend this course.

創建者 iosifescu s

May 16, 2016

Very interesting and very well presented!

創建者 Yaroslav T

Apr 23, 2017

Very useful, nice practical asssignments

創建者 Javier G H

Mar 25, 2016

Great course for intermediate level!

創建者 Jorge R

Dec 09, 2015

Great Material and clear example !!!

創建者 Max D

Jan 10, 2016

really superior course. thank you

創建者 Zach T

Dec 04, 2015

awesome course, nails the basics!

創建者 hina g

Jun 20, 2017

All important topics are covered

創建者 Fernando P

Nov 05, 2016

funny and challenging course!!

創建者 Nicolas S V

Mar 30, 2018

Good tips for the double AA.

創建者 carlos g

May 03, 2017

great professor great course

創建者 Vishal B

Aug 12, 2017

Good introductory course!!

創建者 Juan R G S

Mar 12, 2016

It is a very good course!

創建者 Igor T

Jan 04, 2016

Enough to start I hope:)

創建者 Milan T

Oct 20, 2018

hard but great course

創建者 Riccardo V

Feb 28, 2016

well done!

thank you!

創建者 sayed a e

Jul 03, 2017

great course thanks

創建者 Tega O

Feb 09, 2016

I loved the course.

創建者 Ram K K

Sep 28, 2016

good concept clear

創建者 Felipe M

Jun 27, 2016

Best course ever!

創建者 Dmitry G

May 11, 2016

Very good course!