在关联数组的Twig问题上需要帮助

Question

My controller sends to Twig the following associative array in a variable called 'petition';

Array
(
    [0] => stdClass Object
        (
            [id] => 1
            [doctype] => "somedoc"
            [nrdoc] => "99"
            [datadoc] => "2015-01-01"
        )
    [1] => stdClass Object
        (
            [id] => 2
            [doctype] => "otherdoc"
            [nrdoc] => "100"
            [datadoc] => "2015-01-01"
        )
)

Then, in my Twig template (view) I'm doing this:

    {% for id in petition %}

        {% if id.doctype == 'somedoc' %}
            {{id.nrdoc}} / {{id.datadoc}}
        {% else %}
                UNDEFINED!
        {% endif %}

    {% endfor %}

The problem is that I can't figure out the logic of how to output "UNDEFINED!" only once, if the doctype != "somedoc" when there are other key->value elements in the array. The way I'm doing it, it will output "UNDEFINED!" everytime the script loops...

Thank you in advance for your help

Gabriel

Answer 1

One variant is to define an extra variable for this:

{% set undefined = false %}

{% for id in petition %}
    {% if id.doctype == 'somedoc' %}
        {{ id.nrdoc }} / {{ id.datadoc }}
    {% else %}
        {% set undefined = false %}
    {% endif %}
{% endfor %}

{% if undefined == true %}
    UNDEFINED!
{% endif %}

You can read more about setting Twig variables here .