LibraryManagementSystem/app/models/users_book.rb

22 lines
425 B
Ruby

class UsersBook < ApplicationRecord
belongs_to :user
belongs_to :book
validates_uniqueness_of :book_id, scope: :user_id
enum status: {
borrowed: 0,
returned: 1,
overdue: 2
}, _default: :borrowed
before_save :assign_identifier
def assign_identifier
self.identifier = "#{book.title.first(5).upcase + SecureRandom.urlsafe_base64.upcase}"
end
def due_date
created_at + 7.days
end
end