Maybe/app/models/session.rb

class Session < ApplicationRecord
  belongs_to :user
  belongs_to :active_impersonator_session,
    -> { where(status: :in_progress) },
    class_name: "ImpersonationSession",
    optional: true

  before_create do
    self.user_agent = Current.user_agent
    self.ip_address = Current.ip_address
  end

  def get_preferred_tab(tab_key)
    data.dig("tab_preferences", tab_key)
  end

  def set_preferred_tab(tab_key, tab_value)
    data["tab_preferences"] ||= {}
    data["tab_preferences"][tab_key] = tab_value
    save!
  end
end