236 lines
6.5 KiB
PHP
236 lines
6.5 KiB
PHP
<?php
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/**
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* Product Variation Class
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*
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* The WooCommerce product variation class handles product variation data.
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*
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* @class woocommerce_product_variation
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* @package WooCommerce
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* @category Class
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* @author WooThemes
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*/
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class woocommerce_product_variation extends woocommerce_product {
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var $variation;
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var $variation_data;
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var $variation_id;
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var $variation_has_weight;
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var $variation_has_price;
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var $variation_has_sale_price;
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var $variation_has_stock;
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var $variation_has_sku;
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/**
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* Loads all product data from custom fields
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*
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* @param int $id ID of the product to load
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*/
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function woocommerce_product_variation( $variation_id ) {
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$this->variation_id = $variation_id;
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$product_custom_fields = get_post_custom( $this->variation_id );
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$this->variation_data = array();
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foreach ($product_custom_fields as $name => $value) :
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if (!strstr($name, 'attribute_')) continue;
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$this->variation_data[$name] = $value[0];
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endforeach;
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$this->get_variation_post_data();
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/* Get main product data from parent */
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$this->id = $this->variation->post_parent;
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$parent_custom_fields = get_post_custom( $this->id );
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// Define the data we're going to load: Key => Default value
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$load_data = array(
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'sku' => $this->id,
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'price' => 0,
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'visibility' => 'hidden',
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'stock' => 0,
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'stock_status' => 'instock',
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'backorders' => 'no',
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'manage_stock' => 'no',
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'sale_price' => '',
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'regular_price' => '',
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'weight' => '',
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'tax_status' => 'taxable',
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'tax_class' => '',
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'upsell_ids' => array(),
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'crosssell_ids' => array()
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);
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// Load the data from the custom fields
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foreach ($load_data as $key => $default) :
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if (isset($parent_custom_fields[$key][0]) && !empty($parent_custom_fields[$key][0])) :
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$this->$key = $parent_custom_fields[$key][0];
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else :
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$this->$key = $default;
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endif;
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endforeach;
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// Load serialised data, unserialise twice to fix WP bug
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if (isset($product_custom_fields['product_attributes'][0])) $this->attributes = maybe_unserialize( maybe_unserialize( $product_custom_fields['product_attributes'][0] )); else $this->attributes = array();
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$this->product_type = 'variable';
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if ($parent_custom_fields) :
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$this->exists = true;
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else :
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$this->exists = false;
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endif;
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$this->variation_has_sku = $this->variation_has_stock = $this->variation_has_weight = $this->variation_has_price = $this->variation_has_sale_price = false;
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/* Override parent data with variation */
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if (isset($product_custom_fields['sku'][0]) && !empty($product_custom_fields['sku'][0])) :
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$this->variation_has_sku = true;
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$this->sku = $product_custom_fields['sku'][0];
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endif;
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if (isset($product_custom_fields['stock'][0]) && $product_custom_fields['stock'][0]!=='') :
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$this->variation_has_stock = true;
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$this->manage_stock = 'yes';
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$this->stock = $product_custom_fields['stock'][0];
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endif;
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if (isset($product_custom_fields['weight'][0]) && $product_custom_fields['weight'][0]!=='') :
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$this->variation_has_weight = true;
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$this->weight = $product_custom_fields['weight'][0];
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endif;
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if (isset($product_custom_fields['price'][0]) && $product_custom_fields['price'][0]!=='') :
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$this->variation_has_price = true;
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$this->price = $product_custom_fields['price'][0];
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$this->regular_price = $product_custom_fields['price'][0];
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endif;
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if (isset($product_custom_fields['sale_price'][0]) && $product_custom_fields['sale_price'][0]!=='') :
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$this->variation_has_sale_price = true;
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$this->sale_price = $product_custom_fields['sale_price'][0];
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if ($this->sale_price < $this->price) $this->price = $this->sale_price;
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endif;
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$this->total_stock = $this->stock;
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}
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/** Get the product's post data */
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function get_variation_post_data() {
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if (empty($this->variation)) :
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$this->variation = get_post( $this->variation_id );
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endif;
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return $this->variation;
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}
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/**
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* Get variation ID
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*
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* @return int
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*/
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function get_variation_id() {
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return (int) $this->variation_id;
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}
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/**
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* Get variation attribute values
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*
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* @return array of attributes and their values for this variation
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*/
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function get_variation_attributes() {
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return $this->variation_data;
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}
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/**
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* Get variation attribute values
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*
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* @return string containing the formatted price
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*/
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function get_price_html() {
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if ($this->variation_has_price || $this->variation_has_sale_price) :
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$price = '';
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if ($this->price) :
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if ($this->variation_has_sale_price) :
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$price .= '<del>'.woocommerce_price( $this->regular_price ).'</del> <ins>'.woocommerce_price( $this->sale_price ).'</ins>';
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else :
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$price .= woocommerce_price( $this->price );
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endif;
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endif;
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return $price;
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else :
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return woocommerce_price(parent::get_price());
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endif;
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}
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/**
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* Reduce stock level of the product
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*
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* @param int $by Amount to reduce by
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*/
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function reduce_stock( $by = 1 ) {
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if ($this->variation_has_stock) :
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if ($this->managing_stock()) :
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$this->stock = $this->stock - $by;
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$this->total_stock = $this->total_stock - $by;
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update_post_meta($this->variation_id, 'stock', $this->stock);
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// Parents out of stock attribute
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if (!$this->is_in_stock()) :
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// Check parent
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$parent_product = &new woocommerce_product( $this->id );
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if ($parent_product->managing_stock()) :
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if (!$parent_product->backorders_allowed()) :
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if ($parent_product->total_stock==0 || $parent_product->total_stock<0) :
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update_post_meta($this->id, 'stock_status', 'outofstock');
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endif;
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endif;
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else :
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if ($parent_product->total_stock==0 || $parent_product->total_stock<0) :
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update_post_meta($this->id, 'stock_status', 'outofstock');
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endif;
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endif;
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endif;
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return $this->stock;
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endif;
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else :
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return parent::reduce_stock( $by );
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endif;
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}
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/**
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* Increase stock level of the product
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*
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* @param int $by Amount to increase by
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*/
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function increase_stock( $by = 1 ) {
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if ($this->variation_has_stock) :
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if ($this->managing_stock()) :
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$this->stock = $this->stock + $by;
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$this->total_stock = $this->total_stock + $by;
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update_post_meta($this->variation_id, 'stock', $this->stock);
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// Parents out of stock attribute
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if ($this->is_in_stock()) update_post_meta($this->id, 'stock_status', 'instock');
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return $this->stock;
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endif;
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else :
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return parent::increase_stock( $by );
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endif;
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}
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} |