fixed BUG-76 - no existing for a non-date with move

files.py

@@ -628,7 +628,12 @@ def GetExistingPathsAsDiv(dt):
     dir_ft=FileType.query.filter(FileType.name=='Directory').first()
     dirs_arr=[]
     for delta in range(-7, 8):
-        new_dtime=datetime.datetime.strptime(dt, "%Y%m%d") + datetime.timedelta(days=delta)
+        try:
+            new_dtime=datetime.datetime.strptime(dt, "%Y%m%d") + datetime.timedelta(days=delta)
+        except:
+            # this is not a date, so we cant work out possible dirs, just
+            # return an empty set
+            return "[]"
         new_dt=new_dtime.strftime('%Y%m%d')
         dirs_arr+=Dir.query.distinct(Dir.rel_path).filter(Dir.rel_path.ilike('%'+new_dt+'%')).all();
         dirs_arr+=Dir.query.distinct(Dir.rel_path).join(EntryDirLink).join(Entry).filter(Entry.type_id!=dir_ft.id).filter(Entry.name.ilike('%'+new_dt+'%')).all()