app/models/certificate_template_entry.rb
class CertificateTemplateEntry < ApplicationRecord
belongs_to :certificate_template
belongs_to :certificate_template_font
enum align: %i[center left right justify].freeze
validates :align,
:certificate_template_font,
:character_spacing,
:font_size,
:template,
:x,
:y,
presence: true
has_paper_trail
end