On Thu, 2012-03-15 at 14:57 +0100, Jan Cholasta wrote:
> On 15.3.2012 14:20, Petr Viktorin wrote:
> > On 03/15/2012 12:05 PM, Jan Cholasta wrote:
> >> On 15.3.2012 11:36, Jan Cholasta wrote:
> >>> (this is a continuation of
> >>> <http://www.redhat.com/archives/freeipa-devel/2011-September/msg00327.html>)
> >>>
> >>>
> >>>
> >>>
> >>> Hi,
> >>>
> >>> the attached patches fix <https://fedorahosted.org/freeipa/ticket/1847>
> >>> and <https://fedorahosted.org/freeipa/ticket/2245>:
> >>>
> >>> [PATCH] Fix the procedure for getting default values of command
> >>> parameters.
> >>>
> >>> The parameters used in default_from of other parameters are now properly
> >>> validated before the default_from is called.
> >>>
> >>> [PATCH] Change parameters to use only default_from for dynamic default
> >>> values.
> >>>
> >>> Replace all occurences of create_default with equivalent default_from
> >>> and remove create_default from the framework. This is needed for proper
> >>> parameter validation, as there is no way to tell which parameters to
> >>> validate prior to calling create_default, because create_default does
> >>> not provide information about which parameters are used for generating
> >>> the default value.
> >>>
> >>> Honza
> >>>
> >>
> >> Forgot to remove one FIXME bit in dns.py. Update patch attached.
> >>
> >> Honza
> >
> >
> >  > diff --git a/ipalib/plugins/dns.py b/ipalib/plugins/dns.py
> >  > index a10960a..61c645d 100644
> >  > --- a/ipalib/plugins/dns.py
> >  > +++ b/ipalib/plugins/dns.py
> >  > @@ -1528,7 +1528,7 @@ class dnszone(LDAPObject):
> >  > label=_('SOA serial'),
> >  > doc=_('SOA record serial number'),
> >  > minvalue=1,
> >  > - create_default=_create_zone_serial,
> >  > + default_from=_create_zone_serial,
> >  > autofill=True,
> >  > ),
> >  > Int('idnssoarefresh',
> >  > diff --git a/ipalib/plugins/passwd.py b/ipalib/plugins/passwd.py
> >  > index b26f7e9..9bee314 100644
> >  > --- a/ipalib/plugins/passwd.py
> >  > +++ b/ipalib/plugins/passwd.py
> >  > @@ -69,7 +69,7 @@ class passwd(Command):
> >  > label=_('User name'),
> >  > primary_key=True,
> >  > autofill=True,
> >  > - create_default=lambda **kw: util.get_current_principal(),
> >  > + default_from=lambda: util.get_current_principal(),
> >  > normalizer=lambda value: normalize_principal(value),
> >  > ),
> >  > Password('password',
> >
> >
> > This is just a minor nitpick, but I'd like to know if there's a reason
> > behind it: why are you sometimes using lambda and sometimes not?
> 
> I use lambda as a protective measure against accidents caused by adding 
> optional arguments to the functions used. _create_zone_serial is an 
> exception to that rule, because it is private to the dns plugin.
> 
> >
> > The patch works well here, but I think I'm not the one to ack it.
> >
> 
> Honza
> 

The patch looks OK, I found just minor issues. 

1) We may want to add some check for wildcards (**kw) in default_from, I
guess it would mess with your dependency solver. Some nice error would
warn developers that they are doing something bad.

2) Patch 47.4 needs minor rebasing

Martin

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