guides.rubyonrails.org/active_record_validations.html
Active Record Validations — Ruby on Rails Guides
Active Record ValidationsThis guide teaches you how to validate the state of objects before they go into the database using Active Record's validations feature.After reading this guide, you will know: How to use the built-in Active Record validation helper
guides.rubyonrails.org
>reload!# rails console reload
models>article.rb에서 validation 수정
예시
class Article < ApplicationRecord
validates :title, presence: true, length: { minimum: 6, maximum: 100}
validates :description, presence: true, length: { minimum: 10, maximum: 300}
end>article = Article.new
>article.title = "a"
>article.description = "b"
>article.save
>article.errors.full_messages'ruby on rails' 카테고리의 다른 글
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