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<?php |
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|
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namespace Pixelavo; |
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|
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/* Exit if accessed directly */ |
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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class PixelFeed{ |
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|
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private static $_instance = null; |
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|
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/** |
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* Instance. |
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* Initializes a singleton instance. |
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* @return self class |
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*/ |
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static function instance() { |
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if ( is_null( self::$_instance ) ) { |
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self::$_instance = new self(); |
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} |
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return self::$_instance; |
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} |
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|
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function __construct() { |
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add_action('init', [$this, 'init_feed']); |
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add_filter('feed_content_type', [$this, 'feed_content_type'], 10, 2); |
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} |
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|
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function feed_content_type($content_type, $type) { |
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if ('pixelavo' === $type) { |
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return feed_content_type( 'rss-http' ); |
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} |
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return $content_type; |
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} |
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|
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/** |
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* Feed. |
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* Run when user search for any product and go to `search` page. |
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* @return void |
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*/ |
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function init_feed() { |
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add_feed( 'pixelavo', [$this, 'pixel_feed'] ); |
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} |
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|
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function pixel_feed() { |
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|
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/** |
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* Settings |
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*/ |
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$settings = get_option('pixelavo_settings'); |
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$exclude_categories = array_key_exists('exclude_categories', $settings) ? $settings['exclude_categories'] : []; |
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$exclude_tags = array_key_exists('exclude_tags', $settings) ? $settings['exclude_tags'] : []; |
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|
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/** |
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* Products |
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*/ |
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$args = [ |
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'status' => 'publish', |
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'limit' => -1, |
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'orderby' => 'ID', |
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'order' => 'ASC', |
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'tax_query' => [ |
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'relation' => 'AND', |
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[ |
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'taxonomy' => 'product_cat', |
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'field' => 'term_id', |
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'terms' => $exclude_categories, |
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'operator' => 'NOT IN', |
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], |
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[ |
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'taxonomy' => 'product_tag', |
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'field' => 'term_id', |
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'terms' => $exclude_tags, |
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'operator' => 'NOT IN', |
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] |
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], |
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]; |
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$products = wc_get_products($args); |
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|
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/** |
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* Feed Namespace |
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*/ |
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$namespace = 'http://base.google.com/ns/1.0'; |
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|
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/** |
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* Feed RSS |
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*/ |
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$rss = new \SimpleXMLElement("<?xml version='1.0' encoding='UTF-8'?><rss xmlns:g='{$namespace}'></rss>"); |
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$rss->addAttribute('version', '2.0'); |
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|
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/** |
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* Feed Channel |
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*/ |
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$channel = $rss->addChild('channel'); |
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$channel->addChild('title', get_bloginfo('name')); |
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$channel->addChild('description', get_bloginfo('description')); |
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$channel->addChild('link', get_bloginfo('url')); |
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|
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/** |
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* Feed Item |
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*/ |
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foreach ($products as $product) { |
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$pro['id'] = $settings['product_identifier'] == 'post_id' ? $product->get_id() : $product->get_sku(); |
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$pro['group_id'] = $pro['id']; |
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$pro['title'] = $product->get_title(); |
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$pro['desc'] = $settings['description_field'] == 'description' ? $product->get_description() : $product->get_short_description(); |
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$pro['link'] = $product->get_permalink(); |
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$pro['image_link'] = $this->get_image_link($product->get_id()); |
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$pro['brand'] = $this->get_brand($product->get_id()); |
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$pro['condition'] = $this->get_condition($product->get_id()); |
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$pro['availability'] = $product->is_in_stock() ? 'in stock' : 'out of stock'; |
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$pro['price'] = $this->get_price($product); |
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$pro['extra_fields'] = $this->get_extra_fields($product); |
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$pro['category'] = $this->get_categories($product); |
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$pro['additional_images'] = $this->get_additional_images($product); |
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|
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if($product->is_type('variable') && pixelavo_get_option('include_variations', 'pixelavo_settings') == 'on') { |
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foreach ($product->get_available_variations() as $variation) { |
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$pro['additional_images'] = $this->get_additional_images($product, $variation); |
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$this->feed_item($channel, $pro, $namespace, $variation); |
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} |
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} else { |
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$this->feed_item($channel, $pro, $namespace); |
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} |
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} |
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|
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echo $rss->asXML(); |
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} |
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|
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/** |
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* Feed item function |
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*/ |
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function feed_item($channel, $product, $namespace, $variation = false) { |
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|
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if($variation) { |
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$product['id'] = $product['id'] . '-' . $variation['variation_id']; |
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$product['title'] = $product['title'] . ' - ' . $this->get_variation_title($variation['attributes']); |
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$product['extra_fields'] = array_merge($product['extra_fields'], $this->get_extra_fields(null,$variation['attributes'])); |
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} |
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|
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$item = $channel->addChild('item'); |
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$item->addChild("g:id", $product['id'], $namespace); |
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$item->addChild("g:item_group_id", $product['group_id'], $namespace); |
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$item->addChild("g:title", $product['title'], $namespace); |
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$item->addChild("g:description", $product['desc'], $namespace); |
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$item->addChild("g:availability", $product['availability'], $namespace); |
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$item->addChild("g:condition", $product['condition'], $namespace); |
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if($product['price']) { |
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$item->addChild("g:price", $product['price'], $namespace); |
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} |
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$item->addChild("g:link", $product['link'], $namespace); |
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if($product['image_link']) { |
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$item->addChild("g:image_link", $product['image_link'], $namespace); |
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} |
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if(!empty($product['brand'])) { |
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$item->addChild("g:brand", $product['brand'], $namespace); |
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} |
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foreach ($product['extra_fields'] as $key => $value) { |
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$item->addChild("g:{$key}", $value, $namespace); |
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} |
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$item->addChild("g:category", $product['category'], $namespace); |
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foreach ($product['additional_images'] as $image) { |
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$item->addChild("g:additional_image_link", $image, $namespace); |
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} |
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} |
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|
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/** |
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* Get variation product title |
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*/ |
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function get_variation_title($variations) { |
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if (is_array($variations)) { |
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$variation_values = []; |
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foreach ($variations as $variation) { |
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if(!empty($variation)) { |
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$variation_values[] = $variation; |
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} |
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} |
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return '(' . implode( '-', $variation_values ) . ')'; |
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} |
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return ''; |
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} |
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|
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/** |
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* Get product thumbnail image link |
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*/ |
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function get_image_link($product_id, $variation = null) { |
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$image_id = is_array( $variation ) ? $variation[ 'image_id' ] : get_post_thumbnail_id( $product_id ); |
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$image = wp_get_attachment_image_src( $image_id, 'single-post-thumbnail' ); |
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if($image) { |
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return $image[0]; |
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} |
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return $image; |
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} |
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|
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/** |
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* Get brand name |
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*/ |
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function get_brand($product_id) { |
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$brand_terms = wp_get_post_terms( $product_id, 'product_brand' ); |
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if (!empty($brand_terms) && !is_wp_error($brand_terms)) { |
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return $brand_terms[0]->name; |
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} |
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return ''; |
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} |
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|
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/** |
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* Get product condition |
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*/ |
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function get_condition($product_id) { |
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$condition = get_post_meta($product_id, '_product_condition', true); |
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if (empty($condition)) { |
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return 'new'; |
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} |
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return $condition; |
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} |
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|
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/** |
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* Get product price |
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*/ |
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function get_price($product, $variation = null) { |
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$the_price = is_array($variation) ? $variation['display_price'] : wc_get_price_to_display( $product ); |
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if ($the_price) { |
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return $the_price . ' ' . get_woocommerce_currency(); |
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} |
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return false; |
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} |
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|
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/** |
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* Get product extra fields |
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*/ |
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function get_extra_fields($product, $variation = null) { |
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$fields = ['color', 'gender', 'pattern', 'material', 'size']; |
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$extra_fields = []; |
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forEach ( $fields as $field ) { |
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if ( isSet($variation[ 'attribute_pa_' . $field ]) && !empty($variation[ 'attribute_pa_' . $field ])) { |
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$extra_fields[$field] = $variation[ 'attribute_pa_' . $field ]; |
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} else if (isSet($product) && $product->get_attribute($field) && !empty($product->get_attribute($field))) { |
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$extra_fields[$field] = $product->get_attribute($field); |
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} |
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} |
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return $extra_fields; |
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} |
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|
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/** |
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* Get product categories |
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*/ |
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function get_categories($product) { |
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$categories = get_the_terms($product->get_id(), 'product_cat'); |
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$category_string = ''; |
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if (!empty($categories)) { |
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$categories = wp_list_sort($categories, ['parent' => 'ASC', 'name' => 'ASC'], 'ASC'); |
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foreach ($categories as $category) { |
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$category_string = empty($category_string) ? $category_string . $category->name : $category_string .' > '. $category->name; |
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} |
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} |
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return $category_string; |
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} |
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|
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/** |
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* Get product additional images |
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*/ |
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function get_additional_images( $product, $variation = null ) { |
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$images = []; |
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/* Variation Image */ |
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$variation_image = is_array($variation) ? wp_get_attachment_image_src($variation['image_id'], 'single-post-thumbnail') : false; |
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if ($variation_image) { |
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$images[] = $variation_image[0]; |
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} |
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/* Gallery Images */ |
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$gallery_ids = $product->get_gallery_image_ids(); |
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if (!empty($gallery_ids)) { |
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foreach($gallery_ids as $gallery_id) { |
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$images[] = wp_get_attachment_url($gallery_id); |
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} |
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} |
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return array_unique($images); |
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} |
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|
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} |
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|
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/** |
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* Initialize PixelFeed Class |
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*/ |
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PixelFeed::instance(); |
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|
