Squashed commit of the following:
commit d60c7d3c98d88a8f5b0e3ced6c11b56053e1e44b
Author: Daniel Friesel <derf@finalrewind.org>
Date: Mon Jan 27 20:22:46 2020 +0100
fix bugs related to users without past journeys
commit 707fcc937ac7f6bc3dc29024273f5e74963f7f15
Author: Daniel Friesel <derf@finalrewind.org>
Date: Mon Jan 27 20:19:14 2020 +0100
work around Cache::file turning floats into strings
commit 55831121eb30bc30ed20134bbb48e4bee9772feb
Author: Daniel Friesel <derf@finalrewind.org>
Date: Mon Jan 27 19:43:29 2020 +0100
store journey polylines for later use
commit 1971d511037ff2b8fbc9699cb98e4f8fd51261e5
Author: Daniel Friesel <derf@finalrewind.org>
Date: Sat Jan 25 16:49:48 2020 +0100
set preliminary database schema for polyline storage.
deduplication will follow at a later stage
Whether a user is in transit or not is now determined by an entry in the
in_transit table instead of a dangling checkin.
All completed journeys are stored in the "journeys" table.
This does most of the work needed for automatic checkout. However, note that
the corresponding worker process is not implemented yet.
