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Demo: Multiple Error Messages For a Single Widget (Mapping)

Captured submission

None

Code (click to show in context) 

    @view_config(
        renderer="templates/form.pt",
        name="multiple_error_messages_mapping",
    )
    @demonstrate("Multiple Error Messages For a Single Widget (Mapping)")
    def multiple_error_messages_mapping(self):
        def v1(node, value):
            msg = _("Error ${num}", mapping=dict(num=1))
            raise colander.Invalid(node, msg)

        def v2(node, value):
            msg = _("Error ${num}", mapping=dict(num=2))
            raise colander.Invalid(node, msg)

        def v3(node, value):
            msg = _("Error ${num}", mapping=dict(num=3))
            raise colander.Invalid(node, msg)

        class Schema(colander.Schema):
            field = colander.SchemaNode(
                colander.String(),
                title="Fill in a value and submit to see multiple errors",
                validator=colander.All(v1, v2, v3),
            )

        schema = Schema()
        form = deform.Form(schema, buttons=("submit",))

        return self.render_form(form)