* Change the way we import datetime
This makes it easier to use datetime.date later.
* Display monthly statistics for the range of months where the project was active
Currently, we display a hard-coded "one year" range of monthly statistics
starting from today. This generally is not the intended behaviour: for
instance, on an archived project, the bills might all be older than one
year, so the table only displays months without any operation.
Instead, display all months between the first and last bills. There might
be empty months in the middle, but that's intended, because we want all
months to be consecutive.
If there are no bills, simply display an empty table.
Co-authored-by: Baptiste Jonglez <git@bitsofnetworks.org>
Fix#780
This a breaking change, the API for authentication is different, as it now requires `project_id`. Token is generated with only the project_id (so it's shorter than before), and signature is done by mixing password with secret key. Thus, it expires on every project code change.
This mock was already applied to all tests, because it was done statically
in the TestCurrencyConverter class definition. But it was really not
clear that it's applied everywhere.
Moving this to the setUp() function makes it much clearer.
Also, remove useless redefinition in other tests.
Co-authored-by: Alexis Métaireau <alexis@notmyidea.org>
Currency switching is both simpler and less powerful. This was done primarily for users, to have a clear and logical understanding, but the code is also simpler. The main change is that it is now forbidden to switch a project to "no currency" if bills don't share the same currency.
Also, tests assume that projects are created without currency, as in the web UI.
