If you want to reorder anything in a list, you must edit the position for each item. A better idea is to utilize a powerful Ruby on Rails Gem named acts_as_list. In this video training you'll discover how to install acts_as_list; you will also receive an overview of the thousands of other RubyGems available to add functionality to your program. You'll find out how adding RubyGems can save you time and effort when creating Ruby on Rails applications.
…After the last movie, you should have nested the section inside of the subjects.…Let's take a quick look.…So, here I'm on my subjects page.…I can click on view pages to view all the pages for the initial subject.…And then you can see I have one section.…I can click view sections and I can view that section.…Can look at that section.…Back to list.…We can edit it.…Back to list.…Any of those things will maintain the fact that I'm on the,…the page that I'm seeing just the one's for the first page.…This is the only section of what I'm seeing.…
I'm using page ID to scope that.…I think there are only two tricky bits in…this that you might have had an issue with.…One is that the back to pages link is we…have to make sure that we get the subject id.…We're switching back to that contex and it's the subject id…that we need to keep track of there not the page id.…So you want to make sure that you use at page.subject id.…The second tricky bit is that when we're in the…sections controller when we're in the new action the pages…
- 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 Intermediate
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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