Disable crispy-forms automatic field rendering

gistfile1.py

from django.utils.safestring import mark_safe

from crispy_forms import helper
from crispy_forms.utils import TEMPLATE_PACK, render_field

original_render_layout = helper.FormHelper.render_layout


def new_render_layout(self, form, context, template_pack=TEMPLATE_PACK):
        """
        Returns safe html of the rendering of the layout.

        Monkey patched so that unmentioned layout fields not present in
        Meta.fields DO NOT get rendered automatically.
        """
        form.rendered_fields = set()
        form.crispy_field_template = self.field_template

        # This renders the specifed Layout strictly
        html = self.layout.render(
            form,
            self.form_style,
            context,
            template_pack=template_pack
        )

        # Rendering some extra fields if specified
        if self.render_unmentioned_fields or self.render_hidden_fields or self.render_required_fields:
            fields = set(form.fields.keys())
            left_fields_to_render = fields - form.rendered_fields
            for field in left_fields_to_render:
                if (
                    self.render_unmentioned_fields or
                    self.render_hidden_fields and form.fields[field].widget.is_hidden or
                    self.render_required_fields and form.fields[field].widget.is_required
                ):
                    html += render_field(
                        field,
                        form,
                        self.form_style,
                        context,
                        template_pack=template_pack
                    )

        #
        # NOTE: The following code is omitted by monkey-patching.
        # Why the hell can you not disable this behaviour?
        #

        # If the user has Meta.fields defined, not included in the layout,
        # we suppose they need to be rendered
        #if hasattr(form, 'Meta'):
        #    if hasattr(form.Meta, 'fields'):
        #        current_fields = set(getattr(form, 'fields', []))
        #        meta_fields = set(getattr(form.Meta, 'fields'))

        #        fields_to_render = current_fields & meta_fields
        #        left_fields_to_render = fields_to_render - form.rendered_fields

        #        for field in left_fields_to_render:
        #            html += render_field(field, form, self.form_style, context)

        return mark_safe(html)

helper.FormHelper.render_layout = new_render_layout