Hi @bounty_digital
I don’t think your code is following the correct logic path for this to work.
Your code needs to be spit up into 2 parts:
1. Create the radio button where a user can select the category and then be redirected to the archive url with the $_GET param
2. hook into the pre_get_posts filter and look for the $_GET param. If it exists, add the meta query in.
I should really write a tutorial for this one, so I’m happy to write the code. This is the most simple way to get it working:
<?php
$field = get_field_object("field_5039a99716d1d");
?>
<form action="<?php echo home_url('slug/to/archive'); ?>" method="get">
<ul>
<?php foreach( $field['choices'] as $k => $v ): ?>
<li>
<label><input type="radio" name="acf_category" value="<?php echo $k; ?>" /><?php echo $v; ?></label>
</li>
<?php endforeach; ?>
</ul>
<input type="submit" value="Go" />
</form>
<?php
add_filter( 'pre_get_posts', 'my_pre_get_posts' );
function my_pre_get_posts( $query ) {
if( isset($_GET['my_custom_category']) )
{
// $query is the WP_Query object, set is simply a method of the WP_Query class that sets a query var parameter
$query->set( 'meta_key', 'acf_field_name' );
$query->set( 'meta_value', $_GET['acf_category'] );
}
return $query;
}
?>
This code has not been tested, you can see the 2 parts of code. The rest will be up to you to test it and fix any issues it contains!
Good luck
Thanks
E
