'record_to_html(record, field_name, options)
Converts the specified field of the browse_record ``record`` to HTML
:rtype: unicode'

@api.model
def record_to_html(self, record, field_name, options):

    if (not record):
        return False
    value = record[field_name]
    return (False if (value is False) else record.env[self._name].value_to_html(value, options=options))
