将IF ELSE声明置于Woocommerce产品循环中 - Wordpress

Question

I've got the following custom shortcode to display a range of products

add_shortcode( 'my_shortcode_name', 'on_sale_products' );

function on_sale_products() {
global $product, $woocommerce, $woocommerce_loop;

$args = apply_filters('woocommerce_related_products_args', array(
       // this is working array, just empty for this example
       ) 
);
$products = new WP_Query( $args );

ob_start();

woocommerce_product_loop_start();

while ( $products->have_posts() ) : $products->the_post();

wc_get_template_part( 'content', 'product' ); 

endwhile; 

woocommerce_product_loop_end();

woocommerce_reset_loop();
wp_reset_postdata();

return '<div class="on-sale">' . ob_get_clean() . '</div>';
}

I am trying to add a text message inside the loop that will say "No products to display" if there no products to show.

I'm struggling to correctly place the statement without getting a syntax error.

I've been fiddling around with the code like this:

add_shortcode( 'my_shortcode_name', 'on_sale_products' );

function on_sale_products() {
global $product, $woocommerce, $woocommerce_loop;

$args = apply_filters('woocommerce_related_products_args', array(
       // this is working array, just empty for this example
       ) 
);
$products = new WP_Query( $args );

ob_start();

woocommerce_product_loop_start();

if ( $products->have_posts() ) : $products->the_post() {

   wc_get_template_part( 'content', 'product' ); 

} else {

   echo '<div class="no-products">There are no products to display</div>';
} 

woocommerce_product_loop_end();

woocommerce_reset_loop();
wp_reset_postdata();

return '<div class="on-sale">' . ob_get_clean() . '</div>';
}

But that's not correct.

Could you please point me to the right direction?

Answer 1

2 things:

1) You have removed the while loop.
2) There is an error in this line:

if ( $products->have_posts() ) : $products->the_post() {

It should be instead (in your code):

if ( $products->have_posts() ) { 
    $products->the_post();

---

So the following code, should be the correct way to get this working:

add_shortcode( 'my_shortcode_name', 'on_sale_products' );
function on_sale_products() {
    global $product, $woocommerce, $woocommerce_loop;

    $products = new WP_Query( apply_filters('woocommerce_related_products_args', array(
       // this is working array, just empty for this example
    ) ) );

    ob_start();
    woocommerce_product_loop_start();

    if ( $products->have_posts() ):
        while ( $products->have_posts() ): 
           $products->the_post();
           wc_get_template_part( 'content', 'product' ); 
        endwhile;
    else:
        echo '<div class="no-products">There are no products to display</div>';
    endif; 

    woocommerce_product_loop_end();
    woocommerce_reset_loop();
    wp_reset_postdata();

    return '<div class="on-sale">' . ob_get_clean() . '</div>';
}

Code goes in function.php file of your active child theme (or theme) or also in any plugin file.

This should work for you now…