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.
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來自RAILS 的 ACTIVE RECORD 与 ACTION PACK的熱門評論
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.
Great course. It open ed up my eyes to how simple it can be to generate a workable MVC web application without having to dive too deep into the working of the application,
This course continues the Introduction with the same test-driven approach and delicious intensity of the material. Efforts to finish the course will be greatly rewarded.
I really liked writing the authentication myself. I've relied on Devise (and will continue using it mostly) but really got an appreciation for what was going on.
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.
Awesome course, i have learned a lot about active records, rails database management, action pack, and so on. it's a very completed course.!
The course assignments is hard and takes lots of hours but are valuable to me as it systematically consolidates rails' components for me.
The mission of The Johns Hopkins University is to educate its students and cultivate their capacity for life-long learning, to foster independent and original research, and to bring the benefits of discovery to the world.
關於 Ruby on Rails Web 开发 專項課程