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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

768 個評分
163 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....



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!


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 156 個)

創建者 Roman M


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

創建者 samacitta


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

創建者 Sabarish


Assignments with TDD were encouraging

A very good course for beginners

創建者 nguyen m H


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

創建者 Scott N


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

創建者 Euclides C C M


Very practical course! Keep the good work.

Thanks for your effort!

創建者 Daniel H


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

創建者 Joe A


A little challenging for Ruby beginners but extremely rewarding

創建者 Tolga Y


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

創建者 Ritesh K


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

創建者 Aldo A S Z


Very good and resumed analysis of ActiveRecord and ActionPack

創建者 Patrick L


Highly recommended for people wanting to learn Ruby on Rails

創建者 Serhii S


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

創建者 Viktar H


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

創建者 Toby P


Fantastic presentation material. By far above average.

創建者 Andrew R


Wonderful job of explaining rails development! Awesome!

創建者 Sanele M


Great intro to rails with Active record and action pack

創建者 Joana D L


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

創建者 The S f D


great course, good mid/advanced overview of Rails

創建者 Alejandro E


Great course with excellent attention to detail.

創建者 Ronald S


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

創建者 Vladimir


Must Have course for every future RoR developer!

創建者 Julian H


Very informative, good material and explanation.

創建者 James


AWSOME! Easy to follow, intuitive, and helpful!

創建者 vignesh k


Thank you once again for this wonderful course