Class: Decidim::Migrate::PaperTrailJob

Inherits:
ApplicationJob
  • Object
show all
Defined in:
decidim-core/app/jobs/decidim/migrate/paper_trail_job.rb

Overview

this job is created to help migrating the Paperclip from YAML to JSON

Instance Method Summary collapse

Instance Method Details

#perform(id) ⇒ Object 



7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'decidim-core/app/jobs/decidim/migrate/paper_trail_job.rb', line 7

def perform(id)
  version = PaperTrail::Version.where.not(old_object_changes: nil).find(id)
  # This is an adaptation of PaperTrail internal load_changeset method,having in mind that we
  # need to call also the code from PaperTrail::AttributeSerializer::ObjectChangesAttribute
  object_changes = ActiveSupport::HashWithIndifferentAccess.new(YAML.unsafe_load(version.old_object_changes))
  unless version.item_type.constantize.unscoped.find_by(id: version.item_id).nil?
    # This is the deserialization code from `PaperTrail::AttributeSerializer::ObjectChangesAttribute`
    # where we skip checking the object changeset column type, as we migrate it from YAML to JSON
    changes_to_serialize = object_changes.clone
    if changes_to_serialize.present?
      serializer = PaperTrail::AttributeSerializers::CastAttributeSerializer.new(version.item_type.constantize)
      changes_to_serialize.each do |key, change|
        # `change` is an Array with two elements, representing before and after.
        object_changes[key] = Array(change).map do |value|
          serializer.send(:deserialize, key, value)
        end
      end
    end
  end

  version.update_columns(old_object_changes: nil, object_changes:) # rubocop:disable Rails/SkipsModelValidations
rescue NameError
  Rails.logger.info "Skipping History of #{version.item_type} with id #{version.item_id}"
end