How do you update a Django Form Meta class fields dynamically from the form constructor? -

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I want to dynamically update Meta.fields . Is it possible to do this form constructor? I tried the following but the year form is not visible during the generation. Only names and titles are displayed. 

  Category author (models.Model): name = ... title = ... year = ... class partial official form: model meta: model = author area = ('name ',' Title ') def __init __ (self, * args, ** kwargs): self.meta.fields + = (' year ',)

No, this will not work, the meta is parsed - surprisingly - metaclass, even before you go to __ init __ .

The way to do this manually self.fields : 

  def __init __ (self, * args, ** kwargs): super (Partial author, self) .__ init __ (* args, ** kwargs) self.fields ['year'] = Forms.CharField (whatever)

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