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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

764 個評分
161 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.


51 - Rails 的 Active Record 与 Action Pack 的 75 個評論(共 154 個)

創建者 Roman M

Jun 06, 2020

This was very useful for me. My programming skills were fast forwarded.

創建者 samacitta

Nov 14, 2015

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

創建者 Sabarish

Sep 06, 2020

Assignments with TDD were encouraging

A very good course for beginners

創建者 Nguyen M H

May 24, 2019

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

創建者 Scott N

Sep 03, 2017

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

創建者 Euclides C C M

Apr 10, 2016

Very practical course! Keep the good work.

Thanks for your effort!

創建者 Daniel H

Jan 10, 2016

You can learn a lot, but I do not think it is aimed at beginners.

創建者 Joe A

Sep 18, 2016

A little challenging for Ruby beginners but extremely rewarding

創建者 Tolga Y

Jan 20, 2016

Its a lot of fun to learn and develop web applications rapidly.

創建者 Ritesh K

Aug 18, 2019

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

創建者 Aldo A S Z

Jan 14, 2016

Very good and resumed analysis of ActiveRecord and ActionPack

創建者 Patrick L

Feb 09, 2016

Highly recommended for people wanting to learn Ruby on Rails

創建者 Serhii S

Oct 28, 2016

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

創建者 Viktar H

Nov 10, 2015

Great course. Got more deeper into rails and got more fun.

創建者 Toby P

Dec 12, 2016

Fantastic presentation material. By far above average.

創建者 Andrew R

Aug 01, 2016

Wonderful job of explaining rails development! Awesome!

創建者 Sanele

Jul 04, 2016

Great intro to rails with Active record and action pack

創建者 Joana D L

Sep 16, 2017

Excelent course! Learned a lot! Thank you Professor :)

創建者 The S f D

Aug 10, 2017

great course, good mid/advanced overview of Rails

創建者 Alejandro E

Oct 24, 2017

Great course with excellent attention to detail.

創建者 Ronald S

Jun 05, 2017

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

創建者 Vladimir

Apr 03, 2016

Must Have course for every future RoR developer!

創建者 Julian H

Mar 30, 2016

Very informative, good material and explanation.

創建者 James

Nov 23, 2015

AWSOME! Easy to follow, intuitive, and helpful!

創建者 vignesh k

May 14, 2017

Thank you once again for this wonderful course