147 

   147 

   148     def display_field(self, form, field):

   148     def display_field(self, form, field):

   149         if isinstance(field, HiddenInitialValueField):

   149         if isinstance(field, HiddenInitialValueField):

   150             field = field.visible_field

   150             field = field.visible_field

   151         return (self.display_fields is None

   151         return (self.display_fields is None

   152                 or (field.name, field.role) in self.display_fields

   153                 or (field.name, field.role) in self.display_fields

   153                 or (field.name, field.role) in form.internal_fields)

   154                 or (field.name, field.role) in form.internal_fields)

   154 

   155 

   155     def render_fields(self, w, form, values):

   156     def render_fields(self, w, form, values):

   156         form.form_build_context(values)

   157         form.form_build_context(values)