Steps to reproduce
Let's say we have 2 models:
class Author < ApplicationRecord
has_many :books
end
class Book < ApplicationRecord
belongs_to :author, optional: true, counter_cache: true
accepts_nested_attributes_for :author
end
Then:
Author.create(name: 'author name')
3.times { Book.create(title: 'book title', author: Author.last) }
Book.last.update(author: nil)
Author.last.books_countExpected behavior
Author.last.books_count should be equal to 2.
Actual behavior
Author.last.books_count equal to 1.
The query below executed twice:
UPDATE `authors` SET `books_count` = COALESCE(`books_count`, 0) - 1 WHERE `authors`.`id` = 15
Screenshot with helpful information:
System configuration
Rails version: 5.2.0
Ruby version: 2.5.1
Steps to reproduce
Let's say we have 2 models:
Then:
Expected behavior
Author.last.books_countshould be equal to 2.Actual behavior
Author.last.books_countequal to 1.The query below executed twice:
Screenshot with helpful information:
System configuration
Rails version: 5.2.0
Ruby version: 2.5.1