#23681: NullBooleanSelect should have choices kwarg
-----------------------------+--------------------------------------
     Reporter:  benjaoming   |                    Owner:  benjaoming
         Type:  New feature  |                   Status:  assigned
    Component:  Forms        |                  Version:  master
     Severity:  Normal       |               Resolution:
     Keywords:               |             Triage Stage:  Unreviewed
    Has patch:  0            |      Needs documentation:  0
  Needs tests:  0            |  Patch needs improvement:  0
Easy pickings:  1            |                    UI/UX:  0
-----------------------------+--------------------------------------

Comment (by benjaoming):

 Sry, I had a copy paste typo (see edited comment above). I did test it
 with None/True/False, and it works seemingly fine. But there has to be a
 good reason why `NullBooleanSelect` has customized methods. If `Select`
 works perfectly using the above choices, why is there a
 `NullBooleanSelect`? :)

 In case we could just replace it with `choices=...` then the following
 could get rid of `NullBooleanSelect` alltogether...

 {{{
 #!div style="font-size: 80%"
 Code highlighting:
   {{{#!python
   class NullBooleanField(BooleanField):
       """
       A field whose valid values are None, True and False. Invalid values
 are
       cleaned to None.
       """
       # THIS ONE GOES!
       # widget = NullBooleanSelect
       def __init__(self, *args, **kwargs):
           self.widget = Select(choices=[(None, _("Unknown")),
                               (True, _("Yes")),
                               (False, _("No"))])
           super(NullBooleanField, self).__init__(*args, **kwargs)

       def to_python(self, value):
           """
           Explicitly checks for the string 'True' and 'False', which is
 what a
           hidden field will submit for True and False, and for '1' and
 '0', which
           is what a RadioField will submit. Unlike the Booleanfield we
 need to
           explicitly check for True, because we are not using the bool()
 function
           """
           if value in (True, 'True', '1'):
               return True
           elif value in (False, 'False', '0'):
               return False
           else:
               return None

       def validate(self, value):
           pass
   }}}
 }}}

--
Ticket URL: <https://code.djangoproject.com/ticket/23681#comment:5>
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