How add arguments to query - wordpress

Question

i use a Toolset plugin to make view on WP and they give us possibility to manipulate with API.
I try to add argument to my view but it doesn't work.
here is the function :
add_filter( 'wpv_filter_query', 'add_city_tax', 99, 3 );
function add_city_tax( $query_args, $view_settings, $view_id )
{
if($view_id == 7706)
{
$args = array(
'tax_query' => array
(
array
(
[taxonomy] => 'ville',
[field] => 'id',
[terms] => Array
(
[0] => 220
),
[operator] => 'IN'
),
[relation] => 'OR',
),
);
}
$query_args = new WP_Query( $args );
return $query_args;
}
the page make an error

Answer 1

The method you are declaring args is not correct. You should not create array like that. Please check following example.
function add_city_tax( $query_args, $view_settings, $view_id ) {
if($view_id == 7706) {
$args = array(
'tax_query' => array(
array(
'taxonomy' => 'ville',
'field' => 'id',
'terms' => array( 220 ),
'operator' => 'IN',
),
'relation' => 'OR',
),
);
}
$query_args = new WP_Query( $args );
return $query_args;
}
And here doc
Description
When displaying a View listing posts, this filter is applied to the arguments being generated by the View settings before they are passed to the WP_Query class.
Views filters - wpv_filter_query
Note that the filters that you can add to the View are also hooked here, each of them using a different priority that gets up to 100. To ensure that your filter runs after them, you would need to use a higher priority number.
Remember that the filter can take three parameters. If you pass more than one, you need to specify it in your code using the fourth argument:
1
add_filter( 'wpv_filter_query', 'my_callback_function', 99, 3 );
Arguments
array $query_args Τhe query arguments as in WP_Query.
array $view_settings The View settings.
int $view_id The View ID.

Answer 2

No it doesn't work like this.
i have tried like this :
function add_city_tax( $query_args, $view_settings, $view_id ) {
if($view_id == 7706) {
$args = array(
'tax_query' => array(
array(
'taxonomy' => 'ville',
'field' => 'id',
'terms' => array( 220 ),
'operator' => 'IN',
),
'relation' => 'AND',
),
);
}
$query_args[] = $args ;
$msg = '<pre>' . print_r($query_args, true) . '</pre>';
mail('franck#efficonex.fr', 'test', $msg);
return $query_args;
}
add_filter( 'wpv_filter_query', 'add_city_tax', 99, 3 );
But it is the same result without filter.
here is the example of api
//Return only posts from the current author when listing posts of type company:
add_filter( 'wpv_filter_query', 'prefix_show_only_current_author' );
function prefix_show_only_current_author( $query_args ) {
global $current_user;
$types = (array) $query_args['post_type'];
if ( !is_admin() && in_array( 'company', $types ) ) {
$query_args['author'] = empty( $current_user->ID ) ? -1 : $current_user->ID;
}
return $query_args;
}