Related Recipes by product tag

related-recipes-by-product-tag.php

<?php

add_action( 'woocommerce_single_product_summary', 'product_recipes', 120 );

function product_recipes(){

	// Setup the global product variable.
	global $product;

	// Get the product tags.
	$terms = get_the_terms( $product->get_id(), 'product_tag' );

	// If there are no terms, return early.
	if ( ! $terms || is_wp_error( $terms ) ) {
		return;
	}

	// Get the product tag slugs into it's own array.
	$product_slugs = array();
	if ( ! empty( $terms ) ) {
		foreach ( $terms as $term ) {
			$product_slugs[] = $term->slug;
		}
	}

	// Query to get the specific post type that contain the post slug/s.
	$args = array (
		'order' => 'DESC',
		'order_by' => 'date',
		'post_type' => 'recipe',
		'tag_slug__in' => $product_slugs
	);

	// Do the query.
	$wp_query = new WP_Query( $args );
	
	// Ensure for what ever reason, there are more than 0 posts before continuing.
	if ( 0 < $wp_query->post_count ) {
		$html = '<div class="product_related_recipes">';

			$html .= '<h4>Related Recipes</h4>';

			foreach( $wp_query->posts as $recipe ){

				$recipe_link = get_permalink( $recipe->ID );

				$html .= '<div class="product_related_single_recipe">';

					$html .= '<h5><a href=" ' . $recipe_link . ' ">' . $recipe->post_title . '</a></h5>';
					$html .= '<p>' . $recipe->post_excerpt . '<a href=" ' . $recipe_link . ' "> View Recipe</a></p>';

				$html .= '</div>';

			}

		$html .= '</div>';

		echo $html;
	}
	
}