app/models/events/content_change_event.rb
class ContentChangeEvent < ApplicationRecord
belongs_to :user
serialize :changed_fields, Hash
# Don't show or create ContentChangeEvents for content changes on these attributes
FIELD_IDS_TO_EXCLUDE = %w(
id created_at updated_at user user_id
)
BLANK_PLACEHOLDER = ''
PRIVATE_PLACEHOLDER = '(hidden)'
def content
content_type.constantize.find_by(id: content_id)
end
def entity
content.try(:entity) || content
end
end