fixed 2 x TODOs, can now add an existing face as a refimg, and I sped up the recent jobs page

job.py

@@ -171,7 +171,9 @@ def jobs():
         jobs = Job.query.order_by(Job.id.desc()).all() 
     else:
         page_title='Job list (recent)'
-        jobs = Job.query.filter( Job.last_update >= (func.now() - func.cast(concat(settings.job_archive_age, 'DAYS'), INTERVAL)) ).order_by(Job.id.desc()).all() 
+        # work out cutoff in python (used to do this in sql and it was too slow)
+        cutoff = datetime.now() - timedelta(days=settings.job_archive_age)
+        jobs = Job.query.filter( Job.last_update >= cutoff ).order_by(Job.id.desc()).all() 
     return render_template("jobs.html", jobs=jobs, page_title=page_title)