Join Kevin Skoglund for an in-depth discussion in this video Configuring a project for a database, part of Ruby on Rails 4 Essential Training.
…In the last movie, we created a MySQL database.…Now we need to configure our Rails project,…so that it can connect to that database.…The database configuration file, is going to be…in the Config folder, inside the file called database.yml.…You may be wondering what that yml file extension means.…We've seen .rb and .erb so far.…So what is .yml?….yml means that this file is in YAML format.…YAML is YAML, and the definition of YAML is YAML Ain't Markup Language.…
That's what it stands for.…What does the YAML that's the first word in that definition stand for?…Well, it stands for YAML Ain't Markup Language, too.…And so on.…It's a recursive definition, and it's what passes for programmer humor.…YAML is a way of structuring a simple text…file, and it's well suited to things like configurations.…Let's open up database.yml to see what the YAML format looks like.…You can see that we've got development here,…followed by a colon and a newline, and then…two spaces followed by a series of attributes…and values, also separated by colons for each one.…
- Why use Ruby on Rails?
- Installing Ruby on Rails on Mac and Windows
- Rendering templates and redirecting requests
- Generating and running database migrations
- Creating, updating, and deleting records
- Understanding association types
- Using layouts, partials, and view helpers
- Incorporating assets using asset pipeline
- Validating form data
- Authenticating users and managing user access
- Architecting RESTful applications
- Debugging and error handing
Skill Level Beginner
1. What Is Ruby on Rails?
2. Installing Ruby on Rails on a Mac
3. Installing Ruby on Rails on a Windows Machine
4. Getting Started
5. Controllers, Views, and Dynamic Content
6. Databases and Migrations
7. Models, ActiveRecord, and ActiveRelation
9. Controllers and CRUD
10. Layouts, Partials, and View Helpers
13. Data Validation
14. User Authentication
15. Improving the Simple CMS
16. REST and RESTful Routes
17. Debugging and Error Handling
18. Introducing More Advanced Topics
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