scinote-web/app/models/wopi_action.rb

class WopiAction < ApplicationRecord
  belongs_to :wopi_app,
             foreign_key: 'wopi_app_id',
             class_name: 'WopiApp',
             optional: true
  validates :action, :extension, :urlsrc, :wopi_app, presence: true

  def self.find_action(extension, activity)
    WopiAction.distinct
              .where('extension = ? and action = ?', extension, activity).first
  end
end