Add location data to proposals export and import

[andreslucena]

🎩 What? Why?

As @PierreMesure said:

Lets Decidim export proposals with their location metadata (address, latitude, longitude) and reimport from a file.

This supersedes his job, adding specs and dropping the :coordinates parent key. I think it's easier to just follow the Proposals' data model (like proposal.latitude).

📌 Related Issues

Link your PR to an issue

• Extracted from Add location data to proposals export and import #8604
• Related to MetaDecidim#16871, Export proposals and its comments #1223, Add new fields to proposal serializer #5186
• Fixes Proposal export doesn't display address column #7062

Testing

• Export proposals from a Proposals component with geotagging
• Reimport them back in another component

♥️ Thank you!

[andreslucena]

@PierreMesure I went ahead and added the specs. For me, working with Decidim is like 80% of the time just finding where to make the changes, but as you've already made most of the job I just had to find the spec files. For that, what I do is use grep with the class name that I'm changing:

$ grep -r ProposalSerializer decidim-proposals/spec/
decidim-proposals/spec/services/decidim/proposals/proposal_serializer_spec.rb:    describe ProposalSerializer do
$ grep -r ProposalCreator decidim-proposals/spec/
decidim-proposals/spec/lib/decidim/admin/import/importer_spec.rb:  let(:creator) { Decidim::Proposals::Import::ProposalCreator }
decidim-proposals/spec/lib/decidim/proposals/import/proposal_creator_spec.rb:describe Decidim::Proposals::Import::ProposalCreator do

I call this method "Grep Driven Development" 😅

[PierreMesure]

That's cool! I'll try to get better at specs in 2022!