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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Rails with Active Record and Action Pack
Université Johns-HopkinsÀ propos de ce cours
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Résultats de carrière des étudiants
25%
ont commencé une nouvelle carrière après avoir terminé ce cours
21%
ont bénéficié d'un avantage concret dans leur carrières grâce à ce cours
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Approx. 23 heures pour terminer
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Sous-titres : Arabe, Français, Portugais (européen), Italien, Vietnamien, Allemand, Russe, Anglais, Espagnol
Compétences que vous acquerrez
AuthenticationActive Record PatternRuby On Rails
Résultats de carrière des étudiants
25%
ont commencé une nouvelle carrière après avoir terminé ce cours
21%
ont bénéficié d'un avantage concret dans leur carrières grâce à ce cours
Certificat partageable
Obtenez un Certificat lorsque vous terminez
100 % en ligne
Commencez dès maintenant et apprenez aux horaires qui vous conviennent.
Dates limites flexibles
Réinitialisez les dates limites selon votre disponibilité.
Approx. 23 heures pour terminer
Anglais
Sous-titres : Arabe, Français, Portugais (européen), Italien, Vietnamien, Allemand, Russe, Anglais, Espagnol
Offert par
Université Johns-Hopkins
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.
Programme du cours : ce que vous apprendrez dans ce cours
6 heures pour terminer
Introduction to Active Record
In this module, we will begin exploring the database-interaction portion of Rails. We will start off with migrations that enable you to create and modify the schema of the database. We will then move on to discussing the Active Record gem Rails uses, which enables you to create, retrieve, update, and delete the data from the database. Before looking at Active Record, we will talk about some advanced Ruby features of meta-programming that will help facilitate our Active Record journey.
6 heures pour terminer
12 vidéos (Total 99 min), 3 lectures, 3 quiz
6 heures pour terminer
Deep Dive into Active Record
In this module, we will continue exploring Active Record and look at ways to code advanced queries without exposing ourselves to risk from SQL injection (as well as what SQL injection actually is). We will then look at expressing relationships between entities in Active Record and validating the data being saved to the database.
6 heures pour terminer
11 vidéos (Total 86 min), 2 lectures, 3 quiz
5 heures pour terminer
Introduction to Action Pack
In this module, we will introduce Rails' Action Pack, which is a combination of Action Controller and Action View. We will see how REST has influenced routing in a Rails application and also talk about partials, form helpers, and layouts.
5 heures pour terminer
10 vidéos (Total 67 min), 2 lectures, 3 quiz
6 heures pour terminer
Security and Nested Resources in Action Pack
In this module, we will talk about how to deal with nested resources in Rails. We will then talk about securing your app with a username and password combination for authentication purposes and making sure that users are only authorized to make changes to and view their own resources. We will finish off the module by discussing pagination and deploying to Heroku Paas (Platform as a Service).
6 heures pour terminer
10 vidéos (Total 85 min), 2 lectures, 3 quiz
Avis
Meilleurs avis pour RAILS WITH ACTIVE RECORD AND ACTION PACK
par PD10 août 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!
par NL16 déc. 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.
par TN1 sept. 2016
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,
par YV28 févr. 2016
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.
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