Join Kevin Skoglund for an in-depth discussion in this video Form option helpers, part of Ruby on Rails 4 Essential Training.
…An addition of the Form Helpers from the last…movie, Rails also offers helper methods to work with HTML…Select Option Tags, for when a form needs a pull…down menu of options that a user can select from.…We'll begin by looking at the simplest, the Select Helper.…For the most part Select works like the other Helpers.…It looks for an instance variable, and if…found, uses it's attributes as it's current value.…It accepts a hash of options.…And the second separate hash for HTML options, like class, ID, or style.…The main options that you'll use are include blank or prompt if you…want to blank option or a text prompt as the first option in the selection.…
And selected, if you want to select…something other than the object's attribute value.…The values shown after each of these options are the default values.…The one big difference in this helper is the choices argument.…This is full list of choices or option tags that we'll use…in generating this select option, the choices that a user can choose between.…There are several ways to define these choices.…
- 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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