Add a php script to twig on wordpress - php

Question

im frecuent user of this forum and always find answers from other users, but this time i need to ask my own question.
At this moment im editing a wp template based on twig that i bought, right now im facing a fancybox gallery which just call the first image, and i need to add the gallery rel to the other images included in the post. i already found the missing code which call the rest of images from the post ID, but i dont know how to express it by the twig structure and incorporate it to the original code of the page
this is the code which display the gallery:
{% if wp.get_post_meta(post.ID, '_property_slides', TRUE) %}
<div class="carousel property">
<div class="preview">
<a href="{{ wp.get_post_meta(post.ID, '_property_slides', TRUE).0.imgurl }}" class="fancybox">
<img src=" {{ wp.get_post_meta(post.ID, '_property_slides', TRUE).0.imgurl }}" alt="">
</a>
// the php code expressed on twig goes here //
</div>
<!-- /.preview -->
<div class="content">
<ul>
{% for slide in wp.get_post_meta(post.ID, '_property_slides', TRUE) %}
{% if loop.first %}
<li class="active" >
{% else %}
<li>
{% endif %}
<img src="{{ slide.imgurl }}" alt="">
</li>
{% endfor %}
</ul>
<a id="carousel-prev" href="#">{{ wp.__('Previous', 'aviators') }}</a>
<a id="carousel-next" href="#">{{ wp.__('Next', 'aviators') }}</a>
</div>
<!-- /.content -->
</div><!-- /.carousel -->
{% endif %}
This is the php code i need to implement on twig
add_filter(‘wp_get_attachment_link’,'add_gallery_id_rel’);
function add_gallery_id_rel($link){
global $post;
return str_replace(‘<a href’, ‘<a rel=”galeria’. $post->ID .’” href’, $link);
}
I really appreciate if you can help me with this (sorry about my weird english)

Answer 1

That code is a filter applied to the regular Wordpress functions, you are using a Twig Wrapper so that code won't work for you.
Try modifying the twig loop.
{% for slide in wp.get_post_meta(post.ID, '_property_slides', TRUE) %}
#... rest of the code
<a rel="galeria{{ post.ID }}" href="{{ slide.imgurl }}">
<img src="{{ slide.imgurl }}" alt="">
</a>
#... rest of the code
{% endfor %}
Skip the first slide using slice:
{% for slide in wp.get_post_meta(post.ID, '_property_slides', TRUE)|slice(1) %}
#... rest of the code same as above