Thank you very much, Anthony.
Just the first sentence "...The purpose of translation is to translate
strings based on the requested language of a given HTTP request...."
is enough to understand my stupid mistake.
Dne středa 25. května 2016 12:21:35 UTC+2 Mirek Zvolský napsal(a):
>
> I understand that it requires attention to use
> - variables from models
> - variables from controllers
> - request, response, db, auth, T(?)
> in modules.
>
> Inside functions and method of class they can be used
> - through function parameter/argument
> - as current.xxxxx
>
> Outside functions/methods, i.e. in all code which run at 'import' time
> (like at module level, class attributes)
> they should be avoided at all, because 'import' run once, but such
> variables have thread-versions.
>
> But I am not sure why the T() requires such attention too,
> and if next use is correct and safe or isn't:
>
> from gluon import current
> from gluon.validators import IS_NOT_EMPTY, IS_IN_DB
> class FormTxt(object):
> err_choose = current.T('choose one or more')
> err_required = current.T('this is required')
> class IS_NOT_EMPTY_(IS_NOT_EMPTY):
> def __init__(self):
> super(IS_NOT_EMPTY_,
> self).__init__(error_message=FormTxt.err_required)
> class IS_IN_DB_(IS_IN_DB):
> def __init__(self, *args, **kwargs):
> super(IS_IN_DB_, self).__init__(*args,
> error_message=FormTxt.err_choose, **kwargs)
>
> So I use current.T() in module in class attributes,
> which evaluates only once,
> but I think it is not problem, because we have here just a text, which is
> always the same, thread-independent.
>
> Am I correct, or this could be problem too...?
> Thanks, Mirek
>
>
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