Twig loop grouping divs - html

Question

I want to populate a twig page with information stored in the database. I use a loop to make multiple divs containing different entries of the same tables. The only problem is that I want to group the divs by4.. and I can't stop the loop when I reach the fourth step. In the end i get a big colon of divs.
Can anyone please tell me how to group the divs by 4?
This is my twig template:
<form method="POST" id="form-book">
<section id="portfolio" class="container main">
<ul class="gallery col-4">
{% for type in typeandrooms %}
{% for t, room in type %}
<li>
{% if t == 0 %}
<div class="preview">
{% set var_id = 'bundles/twnelo/images/portfolio/thumb/item' %}
{% set var_id = var_id ~ room.getType.id %}
{% set var_id = var_id ~ '.jpg' %}
<img src="{{ asset(var_id) }}">
<div class="overlay">
</div>
</div>
<div class="desc">
<h5> {{ room.getType.name }} </h5>
<strong>Beds: </strong>Double bed<br/>
<strong>Available rooms: </strong> {{ type|length }} <br/>
<strong>Prices: </strong> {{ room.getPrice }} <br/>
<button type = "submit" name="singleapartment" value = "{{ room.getType.id }}" class="btn btn-success btn-small">Book a room !</button>
</div>
{% endif %}
{% if loop.index % 4 == 0 and loop.index > 0 %}
</li>
Al 4-lea pas
<li>
{% endif %}
</li>
{% endfor %}
{% endfor %}
</ul>
</section>
</form>
{% endfor %}
Problem is solved. This is the new template:
<form method="POST" id="form-book">
<section id="portfolio" class="container main">
<ul class="gallery col-4">
{% for rooms in typesandrooms %}
{% for room in rooms %}
{% if loop.index == 1 %}
<li>
<div class="preview">
{% set var_id = 'bundles/twnelo/images/portfolio/thumb/item' %}
{% set var_id = var_id ~ room.getType.id %}
{% set var_id = var_id ~ '.jpg' %}
<img src="{{ asset(var_id) }}">
<div class="overlay">
</div>
</div>
<div class="desc">
<h5> {{ room.getType.name }} </h5>
<strong>Facilities: </strong>{% for facility in room.getFacilities %} {% if loop.index < 4 %} {{ facility.getFacility }}; {% endif %} {% endfor %}<br/>
<strong>Available rooms: </strong> {{ rooms|length }} <br/>
<strong>Prices: </strong> {{ room.getPrice }} Lei <br/>
<button type = "submit" name="singleapartment" value = "{{ room.getType.id }}" class="btn btn-success btn-small">Book a room !</button>
</div>
</li>
{% endif %}
{% endfor %}
{% endfor %}
</ul>
</section>
</form>

Answer 1

You have to open the first row right before the loop.
{% for type in typeandrooms %}
+ <li>
{% for t, room in type %}
- <li>
And close the last one right after
{% endif %}
- </li>
{% endfor %}
+ </li>
{% endfor %}
And given this line {% if t==0 %} I reckon you'll need to use a counter instead of index.loop. Else you could end up with less than 4 room per list row. The best practice would be to parse the array first in your controller and remove the rooms with t==0 then just remove the {% if t==0 %} line in your twig template and it'll work with index.loop, you want to keep the logic in twig to a minimum.