Re: Change help_text of a field in a derived model

Hm... I fought with indentations in Opera in vain. Everything is lost, though at the time of sending it it looked fine. Try again, with FF.

#models.py:

from django.utils.html import format_html

import django.db.models.options as options

options.DEFAULT_NAMES = options.DEFAULT_NAMES + ('help_texts',)

class Fact(models.Model):

    "Model with plain text"

    name = models.TextField(help_text="Simple text, it will be escaped in html")

    def __unicode__(self):

        return self.name

class ReST(Fact):

    """Derived model with ReStructured Text

    This model needs different self.name.help_text, but assigning to it in 

    __init__ is not possible (self.name is None when __init__ is running)

    """

    def __unicode__(self):

        return format_html(rest_to_html(self.name))

    class Meta:

        help_texts = {'name': 'You can use ReST formating here.'}

#views.py:

class BaseCreateView(CreateView):

    def get_form_class(self):

        model = class_by_name(self.kwargs['fmname'])

        opts = model._meta

        if hasattr(opts, 'help_texts'):

            for fl in opts.concrete_fields:

                if fl.name in opts.help_txt:

                    fl.help_text = opts.help_txt[fl.name]

        form = model_forms.modelform_factory(model)

        return form

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