Learn Rails 5.2: Accelerated Web Development with Ruby on Rails

© Stefan Wintermeyer 2018

Stefan WintermeyerLearn Rails 5.2https://doi.org/10.1007/978-1-4842-3489-1_7

7. Forms

Stefan Wintermeyer¹ 

(1)

Bochum, Germany

 

In this chapter, I’ll talk about forms.

The Data-Input Workflow

To understand forms, you need take a look at the data workflow. Understanding it better will help you to understand how forms work.

Here is an example application:

$ rails new testapp

[...]

$ cd testapp

$ rails generate scaffold Person first_name last_name

[...]

$ rails db:migrate

[...]

$ rails server

[...]

Usually you will create forms by using the scaffold. Let’s go through the flow the data.

Request the people#new Form

When you request the http://localhost:3000/people/new URL, the router answers with the following route:

new_person GET    /people/new(.:format)      people#new ...