You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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class HomeworkBank < ApplicationRecord
# homework_type: 1： ： （ ） ： ：
belongs_to :course_list
belongs_to :homework_common , optional : true
belongs_to :user
has_many :attachments , as : :container , :dependent = > :destroy
has_many :homework_commons , dependent : :nullify
scope :is_public , - > { where ( is_public : true ) }
scope :myself , - > ( user_id ) { where ( user_id : user_id ) }
validates :name , length : { maximum : 60 , too_long : " 不能超过60个字符 " }
validates :description , length : { maximum : 15000 , too_long : " 不能超过15000个字符 " }
validates :reference_answer , length : { maximum : 25000 , too_long : " 不能超过25000个字符 " }
end
