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Divide datas into 2 columns list using Twig

I'm trying to divide datas into 2 columns.

I would like to have a structure like this :

<div class="accordion">
    <div class="accordion__list">
        <div class="accordion__item">
            <p class="accordion__text">Title</p>
            <div class="accordion__content">
                <p>Content</p>
            </div>
        </div>
        <div class="accordion__item">
            <p class="accordion__text">Title</p>
            <div class="accordion__content">
                <p>Content</p>
            </div>
        </div>
    </div>
    <div class="accordion__list">
        <div class="accordion__item">
            <p class="accordion__text">Title</p>
            <div class="accordion__content">
                <p>Content</p>
            </div>
        </div>
    </div>
</div>

To divide .accordion__item div block into 2 columns .accordion__list

For that I wrote this with TWIG :

<div class="accordion">
    <div class="accordion__list">
        {% for liste in bloc.listes[:(bloc.listes|length / 2)|round(0, 'floor')] %}
        <div class="accordion__item">
            <p class="accordion__text">{{ liste.titre }}</p>

            <div class="accordion__content">
                {% for contenu in liste.contenu %}
                    <p>{{ contenu.texte }}</p>
                {% endfor %}
            </div>
        </div>
        {% endfor %}
    </div>
    <div class="accordion__list">
        {% for liste in bloc.listes[(bloc.listes|length / 2)|round(0, 'floor'):] %}
        <div class="accordion__item">
            <p class="accordion__text">{{ liste.titre }}</p>

            <div class="accordion__content">
                {% for contenu in liste.contenu %}
                    <p>{{ contenu.texte }}</p>
                {% endfor %}
            </div>
        </div>
        {% endfor %}
    </div>
</div>

But that's don't work. Each time I got even number into my 2 columns and the last item from my list replace the last item in the last column.

Here an example of my problem

enter image description here

And I would like to have this :

enter image description here

Solution

  • Why don't you just loop the collection twice? It much easier this way,

    {% set items = ['item1', 'item2', 'item3', 'item4', 'item5', ] %}

<div class="half">
{% for item in items %}
    {% if not loop.index is even %}
    <div >{{ item }}</div>
    {% endif %}
{% endfor %}
</div>
<div class="half">
{% for item in items %}
    {% if loop.index is even %}
    <div >{{ item }}</div>
    {% endif %}
{% endfor %}
</div>