:date: 2019-01-22

=========================
Tuesday, January 22, 2019
=========================

Fixed a bug in Così
===================

(1:20) Hamza and I discovered and fixed a little bug in :mod:`lino_xl.lib.vat`:
when you created an invoice in a journal with `edit_totals` and leave the total
field empty, Lino said "TypeError: unsupported operand type(s) for -:
'NoneType' and 'Decimal'".  Also updated the :ref:`book.changes`.

Yes, I like what I did yesterday! We can now write change notes that (1) are
stored in the same repository as the code and (2) can refer to the
documentation.  For example the above bugfix and its change note is here:

https://github.com/lino-framework/xl/commit/18a88f2c01ce377d132e4c76ffb6e07b348d8e99


Reviewing intersphinx dependencies of the documentation trees
=============================================================

I finished my work on :ticket:`2806` (intersphinx dependencies of the
documentation trees).

The order of projects in your :xfile:`~/.atelier/config.py` has become more
important.  It must be (simplified summary)::

    blog atelier lino xl cosi ... book

Rule of thumb : project a must come before project b if

- code in a requires code in b to be installed
- docs of a want intersphinx references to docs of b

I can now run a full pp tour on my machine::

    $ pp -rv inv clean -b bd pd
    $ pp -v inv prep test

Also the change notes for Così  are now adapted to "the way I currently think
it should be": :ref:`cosi.changes`.



Setting up a new Così production site
=====================================

While setting up a new Così production site I had the following problem::

    mysql> grant all on rumma.* to django with grant option;
    ERROR 1558 (HY000): Column count of mysql.user is wrong. Expected 43, found 42. Created with MySQL 50562, now running 50642. Please use mysql_upgrade to fix this error.

After reading `this discussion on SO <https://stackoverflow.com/questions/43846950/column-count-of-mysql-user-is-wrong-expected-42-found-44-the-table-is-probabl>`__
I tried::

    $ mysql_upgrade -uroot -p

    Looking for 'mysql' as: mysql
    Looking for 'mysqlcheck' as: mysqlcheck
    Running 'mysqlcheck with default connection arguments
    Warning: Using a password on the command line interface can be insecure.
    Running 'mysqlcheck with default connection arguments
    Warning: Using a password on the command line interface can be insecure.
    mysql.columns_priv                                 OK
    mysql.db                                           OK
    mysql.event                                        OK
    mysql.func                                         OK
    mysql.general_log                                  OK
    mysql.help_category                                OK
    mysql.help_keyword                                 OK
    mysql.help_relation                                OK
    mysql.help_topic                                   OK
    mysql.host                                         OK
    mysql.ndb_binlog_index                             OK
    mysql.plugin                                       OK
    mysql.proc                                         OK
    mysql.procs_priv                                   OK
    mysql.proxies_priv                                 OK
    mysql.servers                                      OK
    mysql.slow_log                                     OK
    mysql.tables_priv                                  OK
    mysql.time_zone                                    OK
    mysql.time_zone_leap_second                        OK
    mysql.time_zone_name                               OK
    mysql.time_zone_transition                         OK
    mysql.time_zone_transition_type                    OK
    mysql.user                                         OK
    ...
    OK
    Could not create the upgrade info file '/var/lib/mysql/mysql_upgrade_info' in the MySQL Servers datadir, errno: 13