[RUBY] [Enum] Let's improve the readability of data by using rails enum
【goal】
Use of enums in rails
【merit】
■ Improved readability of db, easy to manage ■ Application is also effective for Japanese localization
【Development environment】
■ Mac OS catalina ■ Ruby on Rails (5.2.4.2) ■ Virtual Box:6.1 ■ Vagrant: 2.2.7
【Implementation】
It's very easy to say !!!! Just add to the target model
- ① is the easiest way to write
- Japanese is also possible with ②
model/hoge.rb
① enum column name:[:Any word, :Any word, :Any word, :Any word]
② enum column name:{"Any word": 1,"Any word": 2.......}
- Change number_field to select
- You will be able to acquire the value set in the enum and select it.
hoge/_form.html.erb
<%= form.select :Column name,Model name.Column names.keys, :selected=>Model name.Column names[Column name] %>
that's all
[I want to read it together]
■ About enum https://web-camp.io/magazine/archives/16862
■ About form_with https://qiita.com/tanaka-yu3/items/50f54f5d4f4b8dfe19f3
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