how to filter the loop with custom fields

Try adding:

<?php
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args= array(
	'meta_key' => 'custom_field_disponibilite',
	'meta_value' => 'ND',
	'paged' => $paged
);
query_posts($args);
?>

just before the start of the Loop.

https://codex.www.ads-software.com/Template_Tags/query_posts#Custom_Field_Parameters

Thanks esmi for your help,

This code works for the index.php but failed in category.php do you know how to insert this in the category template on my theme?

Thanks

Have you tried placing it before the Loop in category.php?

Yep just before

<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>

If it works in index.php, it should work in catgeory.php. What happens when you add it? Are there any other custom queries in category.php?

I put my category.php code into this pastebin : https://pastebin.com/ma979473

When I add the custom query it display all the post like in the index.php, it’s strange I think it forget that it’s a category page…

From what I can see, it should work but then I have no idea how all of the various custom meta fields are being used on the site and how they might then affect the final display. What happens when you add the custom query to line 41?

Yes I put the custom query on line 41 and I display posts like in index.php but with all categories instead of only the current category

Try:

<?php
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args= array(
	'cat' => $this_cat_ID,
	'meta_key' => 'custom_field_disponibilite',
	'meta_value' => 'ND',
	'paged' => $paged
);
query_posts($args);
?>

Yep you are a king!
Thanks a lot esmi

To thank you for your help, I put a back link to your website here : https://webdesign.2803.com/ (live when after the next cache erase)

Cool! Thank you. ??

You’re welcome ??
Last question, to you know which argument use for taxonomy, search, and tag pages instead of
'cat' => $this_cat_ID,
(it’s the same problem)

Esmi I found why the code not properly work ?? I use the WP smart sort plugin and this plugin use query_var as you can see here : https://pastebin.com/m875d499. I think I can hack the plugin to restrict the result with my custom field query :

‘meta_key’ => ‘custom_field_disponibilite’,
‘meta_value’ => ‘ND’,

But I don’t know where to add my piece of code.

Thanks for your help