Fixes#10754
A bit of history. bug 2060 was filed a long time ago (2008), and a patch was added to close it in 2016. I believe that the bug had already been patched by then, although I cannot be sure. The patch caused the Gramplet to update anytime the active-changed signal occurred on a person view. I suspect that this caused a fair amount of overhead on very large dbs as the entire person list was rescanned.
In any event, Doug Blank recently removed the original scan code, as well as some useful functionality. And left behind a bug where a value was always zero. The users email list had some complaints about the lost functionality, and I also saw some recent complaints that the gender statistics were incorrect. Turns out that the db's genderstats data was incorrect, probably due to crashes after db updates. The Genderstats don't get saved until db closes normally. In addition, running the Genderstats rebuild tool, did not immediately appear to correct the situation, Gramps had to be restarted to show the updated results.
I added the original statistics code back into the Gramplet, suitably updated for 5.0.x. So the Gramplet no longer depends on dbs genderstats, it scans for it now on its own.
I removed the update on active-changed function, so overhead is only present on actual db updates (which have their own signals). I tested that the add, edit, and delete person changes do properly cause the statistics to update now. So the active-changed signal is not necessary.
Fixes#10783
Check and Repair tool doesn't fix bad references when the reference handle is an empty string.
Found when rewriting the backlinks scan on same tool. I assumed that the prior checks had already corrected any bad forward references, and did not put in a test for them in my new code. The Travis test failed and when I debugged, I found that the tool had an exception on a handle that consisted of an empty string.
Its interesting to note that when I changed the code, a lot more citation and source references were fixed in the test.
Fixes#10618
* Speed up Check and Repair, backlinks check stage.
* Fix Check and repair; backlinks scan to deal with bad references
which should have been fixed in earlier checks!
Python 3.6 and above has deprecated illegal string escape sequences. Escape sequences are preceded by a '\' and valid ones are "\n\t\r" etc. Illegal ones are not in the list https://docs.python.org/3/reference/lexical_analysis.html#string-and-bytes-literals.
Previous to Python 3.6 these illegal sequences were ignored and the '\' was left in place. Pylint has been noting these for a while now.
This PR corrects these sequences in Gramps. I used
find . -name "*.py" | xargs -t -n 1 python3 -Wd -m py_compile 2>&1 | grep Depre
to locate the failing strings.
state & get_primary_mask(another) tested (state & (primary | other)),
which will be true if state matches *either* primary *or* other, but
what is wanted in a not-negated test is state matching all bits of
(primary | other). match_primary_mask does that.
On the other hand there are also cases of "not state & (primary | other)".
no_match_primary_mask handles that, returning true if state matches none
of the bits in (primary | other).
Fixes#10646.
