fix a date pb.

mysql has to be aware of time zone.

mysql/files/dk/container_init

@@ -16,6 +16,11 @@ pid=$!
 
 wait-socket /var/run/mysqld/mysqld.sock
 
+# https://stackoverflow.com/questions/21351251/database-returned-an-invalid-value-in-queryset-dates
+#	This is necessary to use django Extract/Trunc function (for date management in QuerySets)
+mysql_tzinfo_to_sql /usr/share/zoneinfo \
+	| mysql -D mysql -u root
+
 mysql -uroot mysql <<EOF
 GRANT ALL ON allgo.*      TO allgo@'%'  IDENTIFIED BY 'allgo';
 GRANT ALL ON allgo_test.* TO allgo@'%';