require "models/topic" class Reply < Topic validate :errors_on_empty_content validate :title_is_wrong_create, on: :create validate :check_empty_title validate :check_content_mismatch, on: :create validate :check_wrong_update, on: :update def check_empty_title errors[:title] << "is Empty" unless title && title.size > 0 end def errors_on_empty_content errors[:content] << "is Empty" unless content && content.size > 0 end def check_content_mismatch if title && content && content == "Mismatch" errors[:title] << "is Content Mismatch" end end def title_is_wrong_create errors[:title] << "is Wrong Create" if title && title == "Wrong Create" end def check_wrong_update errors[:title] << "is Wrong Update" if title && title == "Wrong Update" end end