I would like to search multiple fields with the same value. For example: can “accounting” be found in the the following fields Services1, Services2, Services3, Services 4. And the url passing the parameter would look like this: mycompany.com/findservices?service=accounting
Here is my current code, placing an array for the meta_key. But is not working:
function my_pre_get_posts( $query ) {
// do not modify queries in the admin
if( is_admin() ) {
return $query;
}
// only modify queries for ‘page’ post type
if( isset($query->query_vars[‘post_type’]) && $query->query_vars[‘post_type’] == ‘page’ ) {
// allow the url to alter the query
if( isset($_GET[‘service’]) ) {
$query->set(‘meta_key’, array(‘service1′,’service2′,’service3′,’service4’));
$query->set(‘meta_value’, $_GET[‘service’]);
}
}
// return
return $query;
}
https://codex.wordpress.org/Class_Reference/WP_Query#Custom_Field_Parameters
$meta_query = array(
'relation' => 'OR',
array(
'key' => 'service1',
'value' => $_GET['service']
),
array(
'key' => 'service2',
'value' => $_GET['service']
),
array(
'key' => 'service3',
'value' => $_GET['service']
),
array(
'key' => 'service4',
'value' => $_GET['service']
),
)
$query->set('meta_query', $args);
It didn’t work, at first.
Then, I changed the $meta_query to $args (at the top). And it works! Thank you.
$args = array(
'relation' => 'OR',
array(
'key' => 'service1',
'value' => $_GET['service']
),
array(
'key' => 'service2',
'value' => $_GET['service']
),
array(
'key' => 'service3',
'value' => $_GET['service']
),
array(
'key' => 'service4',
'value' => $_GET['service']
),
)
$query->set('meta_query', $args);
Duh, my fault, name a variable one thing and then use another name, never works.
additional note: If you’re using meta_query array, your keys should not be prefixed with meta_. If you’re using $query->meta_key, $query->meta_value, etc. then these should still retain the prefix.
