class Pdfresource < ApplicationRecord
  has_many_attached :pdfs
  has_many_attached :thumbnails
  has_many_attached :pdf_snapshots
  validates :feature_slot,
            numericality: { only_integer: true, greater_than_or_equal_to: 1, less_than_or_equal_to: 3, allow_nil: true },
            allow_nil: true
  validate :validate_pdf_count
  validates :name, presence: true

  def validate_pdf_count
    if pdfs.size > 10
      errors.add(:pdfs, "You can upload up to 10 PDFs per resource.")
    end
  end
end