Geozones 2019

[noirbizarre]

This PR:

• ensures that only the latest version of a spatial zone is indexed
• ensures that the spatial migrate commands works with any levels/any country
• fixes the spatial completion indexing
• fixes the search completion tokenizer min_length parameter handling
• fixes the geoid.parse() method to handle legacy identifiers (initialy / instead of : as separator)
• fixes the zone.validity constraints
• prepare for GeoZones 2019 (wikidata attribute)
• prompt for countries in init command

To update, simply execute:

udata spatial load --drop /path/or/url/to/geozones/archive.tar.xz
udata spatial migrate 

A minimalistic Geozones archive with only countries is available on the Geozones release page: https://github.com/etalab/geozones/releases/download/2019.0/geozones-countries-2019-0-msgpack.tar.xz

[abulte]

Still multiple versions of a zone after deploying this on next:

Maybe we need to reindex but:

udata@demo-02:~$ udata search index
➢ Initiliazing index "udata-2019-06-07-16-53"
➢ Indexing Dataset objects
ERROR: dictionary changed size during iteration
➢ Removing index udata-2019-06-07-16-53

[abulte]

After removing no_dereference here

udata/udata/search/commands.py

Line 46 in 06749d8

for obj in qs.no_cache().no_dereference().timeout(False):

, next can be reindexed. But the zones are still there in multiple versions 🤷‍♂.

[abulte]

Reindexation fixed in #2195