Add process groups

[eliegaboriau]

This PR allows admins to add constraints about process groups.

It could closes #75 and it is based on those specs

[paulinebessoles]

@ahukkanen I tested Elie's branch and it works for me in local 😁

[carlobeltrame]

Code looks much safer now! Maybe @paulinebessoles can test again whether everything still works as expected?

[paulinebessoles]

Sorry for the late reply! I tested again and it works for me 😁 @eliegaboriau could you update your branch so it matches the main branch recent commits?
@ahukkanen do you think you can review and merge this contribution in the next days?

[eliegaboriau]

It should be okay now !

[sinaeftekhar]

Thanks for the contributions.
Overal looks good.

[ahukkanen]

Great work and thank you very much for your great contribution @eliegaboriau!

I have tested this locally and it worked great. I could edit the strings in the participatory group page and when scoping the translation set only to a participatory group through the constraints.

However, there are some issues making tight coupling with the decidim-participatory_processes module with this one. Could you please have another look and see if there is a way to abstract that away, to make the module also usable when the decidim-participatory_processes module is not installed. We have one of those instances we are hosting ourselves.

I would like to keep this module separate from the decidim-participatory_processes to avoid tight coupling.

Another issue I had was with the ApplicationHelper being included everywhere, so please also see that comment below.

[eliegaboriau]

Hello @ahukkanen, thanks for your review !
I've just changed a few things following your requests :

• I've moved the manifests method in the module methods and remove all calls to the helper.
• I've removed the participatory_process_group argument i was working with, and used the space instead. It seems to work well.
  Tell me if it seems okay !

[paulinebessoles]

@ahukkanen Is this solution right for you?