{% set allow_grant = allow_grant is defined ? allow_grant : false %}
{% set prefix = (prefix is defined)?prefix:config.prefix %}
{% set role = (role is defined)?role:'ROLE_'~(prefix|upper)~'_EDIT' %}
{% if is_granted(role) or allow_grant %}
<button type="submit" class="btn btn-primary btn-large">
    <span class="glyphicon glyphicon-floppy-disk"></span> Guardar
</button>
{% endif %}