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rails--rails/activerecord/test/models/book.rb
Yoshiyuki Hirano f4fbdb1b4e Allow AR::Enum definitions with boolean values
If `AR::Enum` is used for boolean field, it would be not expected
behavior for us.

fixes #38075

Problem:

In case of using boolean for enum, we can set with string (hash key)
to instance, but we cannot set with actual value (hash value).

```ruby
class Post < ActiveRecord::Base
  enum status: { enabled: true, disabled: false }
end

post.status = 'enabled'
post.status # 'enabled'

post.status = true
post.status # 'enabled'

post.status = 'disabled'
post.status # 'disabled'

post.status = false
post.status # nil (This is not expected behavior)
```

After looking into `AR::Enum::EnumType#cast`, I found that `blank?`
method converts from false value to nil (it seems it may not intentional behavior).

In this patch, I improved that if it defines enum with boolean,
it returns reasonable behavior.
2019-12-24 07:05:42 -10:00

33 lines
1 KiB
Ruby

# frozen_string_literal: true
class Book < ActiveRecord::Base
belongs_to :author
has_many :citations, foreign_key: "book1_id"
has_many :references, -> { distinct }, through: :citations, source: :reference_of
has_many :subscriptions
has_many :subscribers, through: :subscriptions
enum status: [:proposed, :written, :published]
enum read_status: { unread: 0, reading: 2, read: 3, forgotten: nil }
enum nullable_status: [:single, :married]
enum language: [:english, :spanish, :french], _prefix: :in
enum author_visibility: [:visible, :invisible], _prefix: true
enum illustrator_visibility: [:visible, :invisible], _prefix: true
enum font_size: [:small, :medium, :large], _prefix: :with, _suffix: true
enum difficulty: [:easy, :medium, :hard], _suffix: :to_read
enum cover: { hard: "hard", soft: "soft" }
enum boolean_status: { enabled: true, disabled: false }
def published!
super
"do publish work..."
end
end
class PublishedBook < ActiveRecord::Base
self.table_name = "books"
validates_uniqueness_of :isbn
end