Feat/add decrypted private body to extra fields

[Stef-Rousset]

🎩 Description

Add new column on ProposalExtraField to store decrypted private body date, and add rake task to update existing data.

📌 Related Issues

• Odoo card

Testing

You may need to test this in docker if you can't add private fields in local

1. As an admin, go to Decidim Awesome
2. Go to private_fields of Proposals custom fields and add a custom field, for example a radio group applicable on processes proposals (see screenshot)
3. Go to a process, than to proposals and add a new proposal
4. In rails console, check that a proposal extra field has been created with Decidim::DecidimAwesome::ProposalExtraField.last, and that it contains a decrypted_private_body that looks like "<xml><dl class=\"decidim_awesome-custom_fields\" data-generator=\"decidim_awesome\ (........) </dl></xml>"

To test the rake task:

1. Go to rails console and set the decrypted_private_body of proposal extra field previously created to nil with Decidim::DecidimAwesome::ProposalExtraField.last.update_columns(decrypted_private_body: nil) (if in docker, run docker compose exec app rails console)
2. Run the rake task with bundle exec rake decidim:set_decrypted_private_body (or in docker docker compose run app rake decidim:set_decrypted_private_body)
3. Check in the console that the previous proposal extra field has a decrypted_private_body again

Tasks

• [X ] Add specs

📷 Screenshots

Please add screenshots of the changes you're proposing if related to the UI

[BarbaraOliveira13]

Looks good 👍 I also ran it and that works 🎉

[BarbaraOliveira13]

Looks good 👍

[Quentinchampenois]

Looks good to me !

For next iterations, we should move the rake task to a dedicated Job and update extra_fields with batches in case of heavy database