使用此代码添加2个阶元键和元值以订购woocommerce

Question

我试图使此代码推送2个meta键和2个meta值，但是那样行不通！ 在下面的代码中..  如何使其推入另一个add_order_item_meta meta_key = _m_unit 及其  meta_value是$ unit

<?php

if ( ! defined( 'ABSPATH' ) ) {

exit;

}

if ( ! class_exists( 'WC_Quantities_and_Units_Product_Unit' ) ) :

class WC_Quantities_and_Units_Product_Unit {

public function __construct() {

add_filter( 'woocommerce_get_price_suffix', array( $this, 'get_price_suffix' ), 10, 3 );

add_action( 'woocommerce_add_order_item_meta', array( $this, 'add_order_item_meta' ), 10, 2 );

add_filter( 'woocommerce_widget_cart_item_quantity', array( $this, 'get_widget_item_quantity' ), 10, 3 );

}

/**

* @param string $html

* @param array $cart_item

* @param $cart_item_key

*

* @return string

*/

public function get_widget_item_quantity( $html, $cart_item, $cart_item_key ) {

$_product = $cart_item['data'];

$unit = $this->get_unit_for_product( $cart_item['product_id'] );

if ( $unit ) {

$product_price = apply_filters(

'woocommerce_cart_item_price',

WC()->cart->get_product_price( $_product ),

$cart_item,

$cart_item_key

);

$html = '<span class="quantity">' . sprintf( '%s &times; %s', $cart_item['quantity'] . " " . $unit, $product_price ) . '</span>';

}

return $html;

}

/**

* @param int $product_id

*

* @return string

*/

public function get_unit_for_product( $product_id, $default = null ) {

$unit = get_post_meta( $product_id, 'unit', true );

$unit = $unit ? $unit : $default;

return $unit ? apply_filters( 'wciu_default_price_suffix', __( $unit, 'woocommerce' ) ) : '';

}

/**

* Get the price suffix if the 'unit' meta key has been defined.

*

* @param string $price_display_suffix

* @param WC_Product $product

*

* @return string

*/

public function get_price_suffix( $price_display_suffix, $product ) {

// todo make default unit configuarble

if ( $unit = $this->get_unit_for_product( $product->id, apply_filters( 'wciu_default_price_suffix', __( '', 'woocommerce' ) ) ) ) {

$price_display_suffix = "/" . $unit . " " . $price_display_suffix;

}

return $price_display_suffix;

}

/**

* @param string $price The sale price html

* @param string $from String or float to wrap with 'from' text

* @param mixed $to String or float to wrap with 'to' text

* @param WC_Product $product

*

* @return string

*/

public function sale_price_from_to( $price, $from, $to, $product ) {

if ( $unit = get_post_meta( $product->id, 'unit', true ) ) {

$price = '<del>' . ( ( is_numeric( $from ) ) ? wc_price( $from ) : $from ) . '/' . $unit . '</del> <ins>' . ( ( is_numeric( $to ) ) ? wc_price( $to ) : $to ) . '/' . $unit . '</ins>';

}

return $price;

}

/**

* @param string $html

* @param WC_Product $product

*

* @return string

*/

public function price_html( $html, $product ) {

$unit = get_post_meta( $product->id, 'unit', true );

if ( $unit ) {

return $html . '/' . $unit;

}

return $html;

}

public function add_order_item_meta( $item_id, $values )

{

$unit = $this->get_unit_for_product( $values['product_id'] );

if ( $unit )

{

wc_add_order_item_meta( $item_id, __(

"وحدة البيع",'woocommerce' ) . " ($unit )", $values['quantity'] );

//  wc_add_order_item_meta( $item_id, __("_m_unit",'woocommerce'// )."($unit )", $values[$unit]);

}}

//  "", 'woocommerce' ) . "$unit", $values['quantity'] );

//  $unit = $this->get_unit_for_product( $values['product_id'] );

//  if ( $unit ) {

//  wc_add_order_item_meta( $item_id, __("_m_unit",'woocommerce'//)."$unit", $values["$unit"] );

//}

}

endif;

return new WC_Quantities_and_Units_Product_Unit();

您可以看到我在//行尝试..没有用。