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Вернуться к Rails with Active Record and Action Pack

Отзывы учащихся о курсе Rails with Active Record and Action Pack от партнера Университет Джонса Хопкинса

4.7
Оценки: 730
Рецензии: 154

О курсе

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....

Лучшие рецензии

AB

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!

NL

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.

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101–125 из 147 отзывов о курсе Rails with Active Record and Action Pack

автор: Subhrajit D

Apr 26, 2017

Excellent !

автор: Vivek G

Feb 10, 2018

As good as Course 1, grate learning experience ! Thank You professor for this excellent course...

автор: Thomas L

Jan 18, 2017

Great follow up course on Ruby programming!

автор: Paul B

Oct 16, 2016

This course is a pretty detailed analysis of Controller and View roles in MVC with all it's syntax and conventions but it's definitely require some additional material for students to find by themselves. Anyway quizes and assignments are amazing - very good practice even for a little bit more advanced students than complete beginners!

автор: Uladzislau R

Jan 19, 2017

very useful

автор: Paolo P

May 01, 2017

very good course. It has helped me a lot to understand critical ruby on rails concepts.

автор: Intellisys

Aug 18, 2017

This course teach me a lot of complex things like authentication, nested resources and authorization. This is a great course for someone that want to learn Rails

автор: Milan T

Oct 20, 2018

hard but great course

автор: Walter J K

Jul 09, 2019

Excellent!

автор: Nguyen M H

May 24, 2019

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

автор: Ritesh K

Aug 18, 2019

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

автор: Sandor I

Aug 29, 2019

Nicely put together, the right amount of challenging assignments. Min point: For me the assignments are underestimated.

автор: Daichi Y

Dec 15, 2018

It was an awesome course! There is just one thing; the versions of Ruby and Ruby on Rails look to be a bit out-dated. Thank you!

автор: Meis

Sep 09, 2016

Well explained content, though at times the presentation felt a little slow. Solid coding assignments that do a good job of reenforcing the course materials. A couple small topics weren't explained clearly but overall it's been a very informative class. Thanks for the knowledge!

автор: Caspar A

Jun 08, 2016

Not as strong a course as the first course in the specialization. The lectures glossed over some things, while the assignments were a little repetitive. Nevertheless, a solid class on using rails with relational databases.

автор: Derek H

Feb 23, 2018

This course is much better than the previous course "Ruby on Rails: An Introduction". If you struggled through the first class, this one is much more user friendly and easy to go along with.This is definitely a Rails course, with the first course being a Ruby course.

The professor's audio issues are much less pronounced in this course and less noticeable. The lectures are not as monotone and boring to listen to as well.

The modules are broken down into better sections that flow together. The materials, though older, can still be followed and course materials can be used. There has been at least some updates for newer versions of Ruby, Rails, and gems.

The assignments go with the course lectures and many of the examples can point you in the right direction. The assignments are not direct copies of the lectures with many items needing to be modified to accommodate for the assignment requirements. Each module is a take/variation of the previous assignment, which is nice because you get a better sense of how they are working together. The RSPEC files are much better at actually pointing you towards what your issues are. The Wiki site has more beneficial Q/A.

With the assignment time estimates, I found that I usually had to double the higher estimates for the amount that I would spend on each one.

One of the problems with this course is that the assignment files seem to be written by multiple people. They can be very confusing at times, hard to follow. Because the assignments are written in this way, some things will break but are fixed in later steps, though you will not know that they are fixed later after you spend time trying to fix the issues so RSPEC or the Web test will pass.

Another problem with the course has to do with Rails in general. It has some weird conventions and tries to be "Too helpful" at times. You will still have to use Google to figure out what the correct convention is and maybe why some things are done.

автор: Ania M

Nov 14, 2017

The course is very good. The only feedback I have is that it seems as though a lot of Windows users have to struggle with setting up the assignment environments and have to seek guidance from outside sources (e.g. Stack Overflow) for get the issues resolved.

автор: Laura R P

Sep 18, 2016

Good overview, though sometimes hard to follow if you're a complete newbie

автор: Matthew H

Nov 27, 2016

Quick and easy to understand lectures. I was able to pick up active record and action pack quickly!

автор: Gregory J

Oct 17, 2016

Great course for understanding Active Record and managing data in a rails app. As someone new to ruby on rails, I found some details were glossed over, and some explanations were vague. However, the assignments were very well structured and filled in any gaps I had from the lectures.

автор: Joaquin A

Nov 26, 2015

Digging deeper into Active Record.

автор: Piotr

Jan 07, 2017

Useful course for beginners to Rails world.

автор: Raul C M

Nov 22, 2015

Great course to get you started into ruby on rails

автор: Haseeb A

Oct 25, 2016

Good

автор: 維宸 吳

Apr 08, 2016

Smooth pace and each assignment related to further one is very helpful for understanding course material.

while I think partial or helper should provide 2 or 3 extra example code in extra reading material to know when to use partial, when to use helper.