Woocommerce: all products of all categories instead products of one category

Question

I want to get all products of category by category name (slug). Сategory has no parents or children. I wrote my code according to this answer. My code:

<?php 
$args = [
    'post_type' => 'product',
    'posts_per_page' => -1,
    'product_cat' => 'pyvo-v-pliashkah'
];

$products = new WP_Query($args);
wp_reset_query();
echo "<pre>";
print_r($products->posts);
?>

But instead products of "pyvo-v-plyashkah" category I get all products of all categoryes. Where is my mistake?

Answer 1

The problem with the sample code is that the query is reset before echoing the result.

Instead follow the sample you linked to:

$args = array(
    'post_type' => 'product',
    'posts_per_page' => -1,
    'product_cat' => 'pyvo-v-pliashkah'
);

$products_query = new WP_Query( $args );

// output what you want

wp_reset_query();

Answer 2

Try using tax_query

$args = array(
    'posts_per_page' => -1,
    'tax_query' => array(
        array(
            'taxonomy' => 'product_cat',
            'field' => 'slug',
            'terms' => 'pyvo-v-pliashkah'
        )
    ),
    'post_type' => 'product'
);
$the_query = new WP_Query( $args );

Hope it will help!