Woocommerce Product Search with Taxonomy - php

Question

Hi have a search form that is allows the user to input a keyword then select a taxonomy via dropdown list. This is my form:
<form name="myCity" id="myCity" action="http://mywebsite.com/" method="post">
<div class="search-area">
<div class="container">
<div class="row-fluid">
<div class="span4">
<label><i class="icon-search"></i></label>
<div class="search-area-division search-area-division-input">
<input type="text" value="<?php echo get_search_query(); ?>" name="s" id="s" placeholder="I am searching for..."/>
</div>
</div>
<div class="span3">
<label><i class="icon-map-marker"></i></label>
<?php
$args = array('taxonomy' => 'pa_city');
wp_dropdown_categories( $args );
?>
</div>
</div>
<noscript><input type="hidden" onclick="WriteCookie()" class="btn btn-block btn-white search-btn" value="<?php echo esc_attr__( 'Search' ); ?>"/></noscript>
<input type="hidden" name="post_type" value="product" />
</div>
</div>
If I search mini-golf in Bullhead City,
it returns the URL:
http://mywebsite.com/?s=mini-golf&cat=14&post_type=product
While it returns products with the tag mini-golf, it returns all products regardless of city that match mini-golf. I have tried many ways to filter the results and am just spinning my wheels at this point.
The taxonomy I am using is pa_city. Even if the url is
http://mywebsite.com/?s=mini-golf&pa_city=bullhead-city&post_type=product
it does the same thing.
No matter which way I write this, it will NOT exclude the other cities in the search. Should I try a NOTIN? I can't figure out why it brings all products regardless of city...

Answer 1

I needed to filter the query further in my functions.php using pre_get_posts
Whew, that was a frustrating one.
function my_location( $q ){
if (!$q->is_main_query() )
return;
if ($q->is_search()) {
$city = isset( $_COOKIE['city'] ) ? $_COOKIE['city'] : 'not set';
$q->set( 'tax_query', array(array( 'taxonomy' => 'pa_city', 'field' => 'slug', 'terms' => array( $city ), 'operator' => 'IN' )));
return;
}
if ($q->is_archive() ){
if ( ! is_admin() ) {
if (empty($_COOKIE['city'] )) {
echo "<script>window.location.href = 'http://mywebsite.com/select-city/';</script>";
exit();
}
$city = isset( $_COOKIE['city'] ) ? $_COOKIE['city'] : 'not set';
$q->set( 'tax_query', array(array( 'taxonomy' => 'pa_city', 'field' => 'slug', 'terms' => array( $city ), 'operator' => 'IN' )));
}}
}
add_action( 'pre_get_posts', 'my_location' );