Re: [Django] #30774: Migrations uses value of enum object instead of its name.

[Django]

#30774: Migrations uses value of enum object instead of its name.
----------------------------------+--------------------------------------
     Reporter:  oasl              |                    Owner:  nobody
         Type:  Bug               |                   Status:  new
    Component:  Migrations        |                  Version:  master
     Severity:  Normal            |               Resolution:
     Keywords:  Enum, Migrations  |             Triage Stage:  Unreviewed
    Has patch:  0                 |      Needs documentation:  0
  Needs tests:  0                 |  Patch needs improvement:  0
Easy pickings:  0                 |                    UI/UX:  0
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Changes (by oasl):

 * status:  closed => new
 * resolution:  needsinfo =>


Comment:

 To experience the bug:

 In any Django project, set the default value of a CharField as an enum
 object:

 {{{
 class EnumClass(Enum):
      VALUE = _('Value')
 }}}
 where:
 VALUE: is the constant enum object name
 'Value': is the translatable enum object value

 In the model:
 {{{
 field = models.CharField(default=EnumClass.VALUE, max_length=128)
  }}}

 then run: python manage.py makemigrations

 In the generated migration file, you will notice that the default value of
 the field is set to: EnumClass('Value'), so it calls the enum object by
 its value not it is constant name.
 run: python manage.py migrate

 In the settings.py file:
 {{{
 LANGUAGE_CODE = 'fr-FR' # set it to any language code other than English
 }}}

 Run the project after generating, translating, and compiling the messages
 file (see: [https://docs.djangoproject.com/en/2.2/topics/i18n/translation
 /#message-files message-files])

 The project will raise the error: {{{ ValueError: 'Value' is not a valid
 EnumClass }}}, on the generated migration file.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/30774#comment:3>
Django <https://code.djangoproject.com/>
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