Migration from 4.0 to 4.2


[XML] Remove string attrribute from views. There is a script on https://bugs.tryton.org/msg26170 to replace them.


[SQL] Language codes have been simplified. If you want to keep custom translation you must update translation code to match the new code.
Here is an example for the code change from en_US to en:

UPDATE ir_translation SET lang = 'en' WHERE lang = 'en_US';

The ir_configuration may also contain language code:

UPDATE ir_configuration SET language = 'en' WHERE language = 'en_US';

You could also rename existing po file to match the new code.
See Need for derivative translations support (#5443) · Issues · Tryton / Tryton · GitLab

:arrow_forward: Migration from 4.2 to 4.4

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Please consider making the migration queries for ir_translation and ir_configuration a MUST, as without them, posting invoices from version 5 results in an error.

[trytond configuration file] the default language must be updated in order to use the short/simplified language code.
Otherwise this issue can be encountered (while using Invoice report):

ERROR:tryton.common.common:Traceback (most recent call last):
  File "/trytond/wsgi.py", line 111, in dispatch_request
    return endpoint(request, **request.view_args)
  File "/trytond/protocols/dispatcher.py", line 48, in rpc
    request, database_name, *request.rpc_params)
  File "/trytond/wsgi.py", line 78, in auth_required
    return wrapped(*args, **kwargs)
  File "/trytond/protocols/wrappers.py", line 131, in wrapper
    return func(request, pool, *args, **kwargs)
  File "/trytond/protocols/dispatcher.py", line 181, in _dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File "/trytond/modules/account_invoice/invoice.py", line 2608, in execute
    return super().execute(ids, data)
  File "/trytond/report/report.py", line 165, in execute
    oext, content = cls._execute(records, data, action_report)
  File "/trytond/modules/account_invoice/invoice.py", line 2586, in _execute
    result = super(InvoiceReport, cls)._execute(records, data, action)
  File "/trytond/report/report.py", line 181, in _execute
    return cls.convert(action, cls.render(action, report_context))
  File "/trytond/modules/account_invoice/invoice.py", line 2603, in render
    return super().render(*args, **kwargs)
  File "/trytond/report/report.py", line 276, in render
    data = template.generate(**report_context).render()
  File "/relatorio/templates/base.py", line 34, in render
    return self.serializer(self.events)
  File "/relatorio/templates/opendocument.py", line 1056, in __call__
    for kind, data, pos in stream:
  File "/genshi/filters/i18n.py", line 691, in __call__
    for kind, data, pos in stream:
  File "/genshi/template/base.py", line 638, in _include
    for event in stream:
  File "/genshi/template/markup.py", line 327, in _match
    for event in stream:
  File "/genshi/template/base.py", line 598, in _flatten
    result = _eval_expr(data, ctxt, vars)
  File "/genshi/template/base.py", line 289, in _eval_expr
    retval = expr.evaluate(ctxt)
  File "/genshi/template/eval.py", line 178, in evaluate
    return eval(self.code, _globals, {'__data__': data})
  File "<string>", line 375, in <Expression '__relatorio_escape_invalid_chars(format_date(invoice.invoice_date or today, invoice.party.lang))'>
  File "/trytond/report/report.py", line 331, in format_date
    lang = Lang.get()
  File "/trytond/ir/lang.py", line 357, in get
    ('code', '=', code),
ValueError: not enough values to unpack (expected 1, got 0)