Dear List, I'm working on a Django app whose models have geometry fields and that will be deployed in several geographic locations.
Using a globally available reference system (WGS84) and reprojecting on the fly will not work due to performance and accuracy implications for geometric queries. Thus I'd like to make the SRID customizable. The issue comes with migrations which hard-code the SRID in the CreateModel statements. I could import an SRID from a variable in settings.py, but don't like that idea, as changing it after creating would mess things up (srid mismatch, creating new migrations...). It's actually not really a django setting, but more related to the data. One idea would be to store the default SRID in the DB itself (in a dedicated settings model) and retrieve the SRID dynamically from that before running the migrations and loading the models. There could even be some logic to reproject/adapt all geometries fields if the value changes. Sounds nice, but also complicated (models are not available . I'm probably not the first one with this type of requirement (could also happen for other use cases such as language, currencies, etc.). Is there a package I could use or some design pattern I could follow ? Thanks !! Olivier -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAExk7p1s%2B4XozdQOxjZKMbXmG7xq6hhMSiVTsrSyj26VBG%3DFJw%40mail.gmail.com.
