custom-functions.php

<?php

/* Display the current SKU of the variable product */
add_filter( 'woocommerce_cart_item_name', 'add_sku_in_cart', 20, 3);

function add_sku_in_cart( $title, $values, $cart_item_key ) {

    $sku = $values['data']->get_sku();
    return $sku ? $title . sprintf(" (SKU: %s)", $sku) : $title;
}


/* Make Variation Visible */
add_filter('woocommerce_variation_is_visible', 'product_variation_always_shown', 10, 2);

function product_variation_always_shown($is_visible, $id){
    return true;
}


/* Display "Call for Price" instead of empty price */
add_filter('woocommerce_empty_price_html', 'custom_call_for_price');
add_filter('woocommerce_variable_empty_price_html', 'custom_call_for_price');
add_filter('woocommerce_variation_empty_price_html', 'custom_call_for_price');

function custom_call_for_price() {
    // return '<a href="http://psuidev.com/wp/contact?sku='+$values['data']->get_sku()+'" target="_blank">Call for Price</a>';
     return '<a href="http://psuidev.com/wp/contact" target="_blank">Call for Price</a>';
}


//* Display cats at bottom of all pages */
add_filter('themify_footer_start', 'show_product_cats',20,0);

function show_product_cats() {
	
	$taxonomy     = 'product_cat';
	$orderby      = 'id';  
	$show_count   = 0;      // 1 for yes, 0 for no
	$pad_counts   = 0;      // 1 for yes, 0 for no
	$hierarchical = 1;      // 1 for yes, 0 for no  
	$title        = '';  
	$empty        = 0;
	$args = array(
		'taxonomy'     => $taxonomy,
		'orderby'      => $orderby,
		'order'			=> $asc,
		'show_count'   => $show_count,
		'pad_counts'   => $pad_counts,
		'hierarchical' => $hierarchical,
		'title_li'     => $title,
		'hide_empty'   => $empty
	);
	$all_categories = get_categories( $args );
	//print_r($all_categories);
	echo "<div class='cat_page_list_box'>";
	foreach ($all_categories as $cat) {
		//print_r($cat);
		if (($cat->category_parent == 0) && ($cat->slug != 'featured-products')) {
			$category_id = $cat->term_id;

			echo '<div class="cat_page_list"><strong><a href="'. get_term_link($cat->slug, 'product_cat') .'">'. $cat->name .'</a></strong>';
			$args2 = array(
				'taxonomy'     => $taxonomy,
				'child_of'     => 0,
				'parent'       => $category_id,
				'orderby'      => $orderby,
				'show_count'   => $show_count,
				'pad_counts'   => $pad_counts,
				'hierarchical' => $hierarchical,
				'title_li'     => $title,
				'hide_empty'   => $empty
			);
			$sub_cats = get_categories( $args2 );
			if($sub_cats) {
				$catcnt = 0;
				foreach($sub_cats as $sub_category) {
					$catcnt++;
					if ($catcnt < 11) {
						echo '<br /><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .'</a>';
					} else {
						echo '<br /><span style="font-size:0.9em"><a href="'. get_term_link($cat->slug, 'product_cat') .
							'">...more <strong>'.$cat->name .'</strong></a></span>';
						break;
					}
				}
			} 
			echo '</div>';  // end class cat_page_list
		}
	}
	echo "</div>"; // end class cat_page_list_box
	echo "<div class='clear_the_floats'></div>";
}


//add_filter('woocommerce_get_product_thumbnail', 'custom_get_product_thumbnail');

function custom_get_product_thumbnail( ){
	global $post;
		
	if ( has_post_thumbnail() ) {
		echo get_the_post_thumbnail( $post->ID, 'thumbnail' );
		return; 
	} else { 
		echo "<p align='center'>No Image<br><strong>View details...</strong></p>";
		return;
	}
} /* end function */
	
	
function format_and_show ($inputstr, $pdffilepath, $label) {
	/* print the beginning of the list entry */
	echo "<li><strong>$label:</strong>";

	/* does it look like an outside link ? */
	if (strpos($inputstr, 'http') !== FALSE) {
		echo " <a href='$inputstr'";
	} else {
		echo " <a href='$pdffilepath$inputstr'";
	}
	
	/* what type of file is it ? */
	if (strpos($inputstr, '.pdf') !== FALSE) {
		echo " class='pdflink'";  
	} else if (strpos($inputstr, '.zip') !== FALSE) {	
		echo " class='ziplink'";  
	}
	
	/* finish up the string */
	echo " target='_blank' >$inputstr</a></li>";
	return; 
} /* end funtion */


	// Product Attributes shortcode
function custom_product_docs_shortcode( ) {
	global $product;
	/**** definitions of spec-sheet types
		attribute:pa_spec-sheet		= Product Datasheet
		attribute:pa_spec-sheet-2	= Reach Declaration Certificate
		attribute:pa_spec-sheet-3	= 3D Drawings
		attribute:pa_spec-sheet-4	= RoHS Certificate
		attribute:pa_spec-sheet-5	= CB Report
		attribute:pa_spec-sheet-6	= Certifications
		attribute:pa_spec-sheet-7	= Application Note
		attribute:pa_spec-sheet-8	= Product Documentation
		attribute:pa_spec-sheet-9	= Product Documentation
		attribute:pa_spec-sheet-10	= Product Documentation
	*/
	
	$UPLOADPATH = '/wp/wp-content/uploads/products/';
	if ( $product->get_attribute( 'pa_spec-sheet' ) ||
		$product->get_attribute( 'pa_spec-sheet-2' ) ||
		$product->get_attribute( 'pa_spec-sheet-3' ) ||
		$product->get_attribute( 'pa_spec-sheet-4' ) ||
		$product->get_attribute( 'pa_spec-sheet-5' ) ||
		$product->get_attribute( 'pa_spec-sheet-6' ) ||
		$product->get_attribute( 'pa_spec-sheet-7' ) ||
		$product->get_attribute( 'pa_spec-sheet-8' ) ||
		$product->get_attribute( 'pa_spec-sheet-9' ) ||
		$product->get_attribute( 'pa_spec-sheet-10' ) ) { 
    		$pdffilepath = 
				$UPLOADPATH . $product->get_attribute (' manufacturer' ) . '/DataSheets/';
		}
		
	echo "<ul>";
	
	$terms = get_the_terms( $product->id,'pa_spec-sheet');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, 'Product Datasheet');
			}
		}
	}


	$terms = get_the_terms( $product->id,'pa_spec-sheet-2');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath , 'Reach Declaration Certificate');
			}
		}
	}
	
	$terms = get_the_terms( $product->id,'pa_spec-sheet-3');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, '3D Drawings');
			}
		}
	}

	$terms = get_the_terms( $product->id,'pa_spec-sheet-4');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath ,'RoHS Certificate');
			}
		}
	}

	$terms = get_the_terms( $product->id,'pa_spec-sheet-5');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, 'CB Report');
			}
		}
	}

	$terms = get_the_terms( $product->id,'pa_spec-sheet-6');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, 'Certifications');
			}
		}
	}
	
	$terms = get_the_terms( $product->id,'pa_spec-sheet-7');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, 'Application Note');
			}
		}
	}
	
	$terms = get_the_terms( $product->id,'pa_spec-sheet-8');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, 'Product Documentation');
			}
		}
	}

	$terms = get_the_terms( $product->id,'pa_spec-sheet-9');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, 'Product Documentation');
			}
		}
	}
	
	$terms = get_the_terms( $product->id,'pa_spec-sheet-10');
	if ($terms) { 
		foreach ( $terms as $term ) { 
			if (($term->name) && ($term->name != 'na')) {
				format_and_show ($term->name, $pdffilepath, 'Product Documentation:');
			}
		}
	}

	echo "</ul>";
}
add_shortcode('product_docs', 'custom_product_docs_shortcode');


// get taxonomies terms links
function custom_taxonomies_terms_links(){
  // get post by post id
  $post = get_post( $post->ID );

  // get post type by post
  $post_type = $post->post_type;

  // get post type taxonomies
  $taxonomies = get_object_taxonomies( $post_type, 'objects' );

  $out = array();
  foreach ( $taxonomies as $taxonomy_slug => $taxonomy ){

    // get the terms related to post
    $terms = get_the_terms( $post->ID, $taxonomy_slug );

    if ( !empty( $terms ) ) {
      $out[] = "<h2>" . $taxonomy->label . "</h2>\n<ul>";
      foreach ( $terms as $term ) {
        $out[] =
          '  <li><a href="'
        .    get_term_link( $term->slug, $taxonomy_slug ) .'">'
        .    $term->name
        . "</a></li>\n";
      }
      $out[] = "</ul>\n";
    }
  }

  return implode('', $out );
}
add_shortcode('product_taxonomies','custom_taxonomies_terms_links');



// USED TO ALLOW SearchWP to find Product Variations
// index WooCommerce product_variation SKUs with the parent post
function my_searchwp_index_woocommerce_variation_skus( $extra_meta, $post_being_indexed ) {
	// we only care about WooCommerce Products
	if ( 'product' !== get_post_type( $post_being_indexed ) ) {
		return $extra_meta;
	}
	// retrieve all the product variations
	$args = array(
		'post_type'       => 'product_variation',
		'posts_per_page'  => -1,
		'fields'          => 'ids',
		'post_parent'     => $post_being_indexed->ID,
	);
	$product_variations = get_posts( $args );
	if ( ! empty( $product_variations ) ) {
		// store all SKUs as a Custom Field with a key of 'my_product_variation_skus'
		$extra_meta['my_product_variation_skus'] = array();
		// loop through all product variations, grab and store the SKU
		foreach ( $product_variations as $product_variation ) {
			$extra_meta['my_product_variation_skus'][] = get_post_meta( absint( $product_variation ), '_sku', true );
		}
	}
	return $extra_meta;
}
add_filter( 'searchwp_extra_metadata', 'my_searchwp_index_woocommerce_variation_skus', 10, 2 );

// reference: https://gist.github.com/jchristopher/0cad8418fd9477c57b53
function my_searchwp_custom_field_keys_variation_skus( $keys ) {
  $keys[] = 'my_product_variation_skus';
  
  return $keys;
}
 
add_filter( 'searchwp_custom_field_keys', 'my_searchwp_custom_field_keys_variation_skus', 10, 1 );


?>