[Support request] change query for single if post has category

[Tesco]

How can I change the query for single post if that post has a specific category?

These are the args that I need:

$postIds = get_post_meta($post->ID, 'posts_ids', true);
$arrayIds = explode(',', $postIds);
$args = array('post_type' => 'post','post__in' => $arrayIds, 'ignore_sticky_posts' => 1);

Then the template should call something like this:
<?php if(have_posts()): while(have_posts()): the_post(); ?>

So that I can build my custom HTML here

[David]

Hi there,

there are many ways to do it.
But the WordPress codex can be your biggest friend. For example this hook:

https://developer.wordpress.org/reference/hooks/type_template/

You can use that for the single_template to select a different template based on whatever conditions you want.
There are examples in the comments of that codex page.

Or theres a specific example here:

https://wordpress.stackexchange.com/a/169862

[Author]

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