<?php
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
/**
* WooCommerce coupons
*
* The WooCommerce coupons class gets coupon data from storage and checks coupon validity.
*
* @class WC_Coupon
* @version 2.3.0
* @package WooCommerce/Classes
* @category Class
* @author WooThemes
*
* @property string $discount_type
* @property string $coupon_amount
* @property string $individual_use
* @property array $product_ids
* @property array $exclude_product_ids
* @property string $usage_limit
* @property string $usage_limit_per_user
* @property string $limit_usage_to_x_items
* @property string $usage_count
* @property string $expiry_date
* @property string $free_shipping
* @property array $product_categories
* @property array $exclude_product_categories
* @property string $exclude_sale_items
* @property string $minimum_amount
* @property string $maximum_amount
* @property array $customer_email
*/
class WC_Coupon {
// Coupon message codes
const E_WC_COUPON_INVALID_FILTERED = 100;
const E_WC_COUPON_INVALID_REMOVED = 101;
const E_WC_COUPON_NOT_YOURS_REMOVED = 102;
const E_WC_COUPON_ALREADY_APPLIED = 103;
const E_WC_COUPON_ALREADY_APPLIED_INDIV_USE_ONLY = 104;
const E_WC_COUPON_NOT_EXIST = 105;
const E_WC_COUPON_USAGE_LIMIT_REACHED = 106;
const E_WC_COUPON_EXPIRED = 107;
const E_WC_COUPON_MIN_SPEND_LIMIT_NOT_MET = 108;
const E_WC_COUPON_NOT_APPLICABLE = 109;
const E_WC_COUPON_NOT_VALID_SALE_ITEMS = 110;
const E_WC_COUPON_PLEASE_ENTER = 111;
const E_WC_COUPON_MAX_SPEND_LIMIT_MET = 112;
const E_WC_COUPON_EXCLUDED_PRODUCTS = 113;
const E_WC_COUPON_EXCLUDED_CATEGORIES = 114;
const WC_COUPON_SUCCESS = 200;
const WC_COUPON_REMOVED = 201;
/** @public string Coupon code. */
public $code = '';
/** @public int Coupon ID. */
public $id = 0;
/** @public bool Coupon exists */
public $exists = false;
/**
* Coupon constructor. Loads coupon data.
*
* @access public
* @param mixed $code code of the coupon to load
*/
public function __construct( $code ) {
$this->exists = $this->get_coupon( $code );
}
/**
* __isset function.
*
* @param mixed $key
* @return bool
*/
public function __isset( $key ) {
if ( in_array( $key, array( 'coupon_custom_fields', 'type', 'amount' ) ) ) {
return true;
}
return false;
}
/**
* __get function.
*
* @param mixed $key
* @return mixed
*/
public function __get( $key ) {
// Get values or default if not set
if ( 'coupon_custom_fields' === $key ) {
$value = $this->id ? get_post_meta( $this->id ) : array();
} elseif ( 'type' === $key ) {
$value = $this->discount_type;
} elseif ( 'amount' === $key ) {
$value = $this->coupon_amount;
} else {
$value = '';
}
return $value;
}
/**
* Checks the coupon type.
*
* @param string $type Array or string of types
* @return bool
*/
public function is_type( $type ) {
return ( $this->discount_type == $type || ( is_array( $type ) && in_array( $this->discount_type, $type ) ) ) ? true : false;
}
/**
* Gets an coupon from the database.
*
* @param string $code
* @return bool
*/
private function get_coupon( $code ) {
$this->code = apply_filters( 'woocommerce_coupon_code', $code );
// Coupon data lets developers create coupons through code
if ( $coupon = apply_filters( 'woocommerce_get_shop_coupon_data', false, $this->code ) ) {
$this->populate( $coupon );
return true;
}
// Otherwise get ID from the code
$this->id = $this->get_coupon_id_from_code( $this->code );
$coupon_post = get_post( $this->id );
if ( $coupon_post && $this->code === apply_filters( 'woocommerce_coupon_code', $coupon_post->post_title ) ) {
$this->populate();
return true;
}
return false;
}
/**
* Get a coupon ID from it's code.
* @since 2.5.0 woocommerce_coupon_code_query was removed in favour of woocommerce_get_coupon_id_from_code filter on the return. wp_cache was also implemented.
* @param string $code
* @return int
*/
private function get_coupon_id_from_code( $code ) {
global $wpdb;
$coupon_id = wp_cache_get( WC_Cache_Helper::get_cache_prefix( 'coupons' ) . 'coupon_id_from_code_' . $code, 'coupons' );
if ( false === $coupon_id ) {
$sql = $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_type = 'shop_coupon' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1;", $this->code );
if ( $coupon_id = apply_filters( 'woocommerce_get_coupon_id_from_code', $wpdb->get_var( $sql ), $this->code ) ) {
wp_cache_set( WC_Cache_Helper::get_cache_prefix( 'coupons' ) . 'coupon_id_from_code_' . $code, $coupon_id, 'coupons' );
}
}
return absint( $coupon_id );
}
/**
* Populates an order from the loaded post data.
*/
private function populate( $data = array() ) {
$defaults = array(
'discount_type' => 'fixed_cart',
'coupon_amount' => 0,
'individual_use' => 'no',
'product_ids' => array(),
'exclude_product_ids' => array(),
'usage_limit' => '',
'usage_limit_per_user' => '',
'limit_usage_to_x_items' => '',
'usage_count' => '',
'expiry_date' => '',
'free_shipping' => 'no',
'product_categories' => array(),
'exclude_product_categories' => array(),
'exclude_sale_items' => 'no',
'minimum_amount' => '',
'maximum_amount' => '',
'customer_email' => array()
);
if ( ! empty( $this->id ) ) {
$postmeta = get_post_meta( $this->id );
}
foreach ( $defaults as $key => $value ) {
// Try to load from meta if an ID is present
if ( ! empty( $this->id ) ) {
/**
* By not calling `get_post_meta()` individually, we may be breaking compatibility with.
* some plugins that filter on `get_post_metadata` and erroneously override based solely.
* on $meta_key -- but don't override when querying for all as $meta_key is empty().
*/
$this->$key = isset( $postmeta[ $key ] ) ? maybe_unserialize( array_shift( $postmeta[ $key ] ) ) : '';
} else {
$this->$key = ! empty( $data[ $key ] ) ? wc_clean( $data[ $key ] ) : '';
// Backwards compat field names @deprecated
if ( 'coupon_amount' === $key ) {
$this->coupon_amount = ! empty( $data[ 'amount' ] ) ? wc_clean( $data[ 'amount' ] ) : $this->coupon_amount;
} elseif ( 'discount_type' === $key ) {
$this->discount_type = ! empty( $data[ 'type' ] ) ? wc_clean( $data[ 'type' ] ) : $this->discount_type;
}
}
if ( empty( $this->$key ) ) {
$this->$key = $value;
} elseif ( in_array( $key, array( 'product_ids', 'exclude_product_ids', 'product_categories', 'exclude_product_categories', 'customer_email' ) ) ) {
$this->$key = $this->format_array( $this->$key );
} elseif ( in_array( $key, array( 'usage_limit', 'usage_limit_per_user', 'limit_usage_to_x_items', 'usage_count' ) ) ) {
$this->$key = absint( $this->$key );
} elseif( 'expiry_date' === $key ) {
$this->expiry_date = $this->expiry_date && ! is_numeric( $this->expiry_date ) ? strtotime( $this->expiry_date ) : $this->expiry_date;
}
}
do_action( 'woocommerce_coupon_loaded', $this );
}
/**
* Format loaded data as array.
* @param string|array $array
* @return array
*/
public function format_array( $array ) {
if ( ! is_array( $array ) ) {
if ( is_serialized( $array ) ) {
$array = maybe_unserialize( $array );
} else {
$array = explode( ',', $array );
}
}
return array_filter( array_map( 'trim', array_map( 'strtolower', $array ) ) );
}
/**
* Check if coupon needs applying before tax.
*
* @return bool
*/
public function apply_before_tax() {
return true;
}
/**
* Check if a coupon enables free shipping.
*
* @return bool
*/
public function enable_free_shipping() {
return 'yes' === $this->free_shipping;
}
/**
* Check if a coupon excludes sale items.
*
* @return bool
*/
public function exclude_sale_items() {
return 'yes' === $this->exclude_sale_items;
}
/**
* Increase usage count for current coupon.
*
* @param string $used_by Either user ID or billing email
*/
public function inc_usage_count( $used_by = '' ) {
if ( $this->id ) {
$this->usage_count++;
update_post_meta( $this->id, 'usage_count', $this->usage_count );
if ( $used_by ) {
add_post_meta( $this->id, '_used_by', strtolower( $used_by ) );
}
}
}
/**
* Decrease usage count for current coupon.
*
* @param string $used_by Either user ID or billing email
*/
public function dcr_usage_count( $used_by = '' ) {
if ( $this->id && $this->usage_count > 0 ) {
global $wpdb;
$this->usage_count--;
update_post_meta( $this->id, 'usage_count', $this->usage_count );
if ( $used_by ) {
/**
* We're doing this the long way because `delete_post_meta( $id, $key, $value )` deletes.
* all instances where the key and value match, and we only want to delete one.
*/
$meta_id = $wpdb->get_var( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = '_used_by' AND meta_value = %s AND post_id = %d LIMIT 1;", $used_by, $this->id ) );
if ( $meta_id ) {
delete_metadata_by_mid( 'post', $meta_id );
}
}
}
}
/**
* Get records of all users who have used the current coupon.
*
* @access public
* @return array
*/
public function get_used_by() {
$_used_by = (array) get_post_meta( $this->id, '_used_by' );
// Strip out any null values.
return array_filter( $_used_by );
}
/**
* Returns the error_message string.
*
* @access public
* @return string
*/
public function get_error_message() {
return $this->error_message;
}
/**
* Ensure coupon exists or throw exception.
*
* @throws Exception
*/
private function validate_exists() {
if ( ! $this->exists ) {
throw new Exception( self::E_WC_COUPON_NOT_EXIST );
}
}
/**
* Ensure coupon usage limit is valid or throw exception.
*
* @throws Exception
*/
private function validate_usage_limit() {
if ( $this->usage_limit > 0 && $this->usage_count >= $this->usage_limit ) {
throw new Exception( self::E_WC_COUPON_USAGE_LIMIT_REACHED );
}
}
/**
* Ensure coupon user usage limit is valid or throw exception.
*
* Per user usage limit - check here if user is logged in (against user IDs).
* Checked again for emails later on in WC_Cart::check_customer_coupons().
*
* @param int $user_id
* @throws Exception
*/
private function validate_user_usage_limit( $user_id = 0 ) {
if ( empty( $user_id ) ) {
$user_id = get_current_user_id();
}
if ( $this->usage_limit_per_user > 0 && is_user_logged_in() && $this->id ) {
global $wpdb;
$usage_count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT( meta_id ) FROM {$wpdb->postmeta} WHERE post_id = %d AND meta_key = '_used_by' AND meta_value = %d;", $this->id, $user_id ) );
if ( $usage_count >= $this->usage_limit_per_user ) {
throw new Exception( self::E_WC_COUPON_USAGE_LIMIT_REACHED );
}
}
}
/**
* Ensure coupon date is valid or throw exception.
*
* @throws Exception
*/
private function validate_expiry_date() {
if ( $this->expiry_date && current_time( 'timestamp' ) > $this->expiry_date ) {
throw new Exception( $error_code = self::E_WC_COUPON_EXPIRED );
}
}
/**
* Ensure coupon amount is valid or throw exception.
*
* @throws Exception
*/
private function validate_minimum_amount() {
if ( $this->minimum_amount > 0 && apply_filters( 'woocommerce_coupon_validate_minimum_amount', wc_format_decimal( $this->minimum_amount ) > WC()->cart->get_displayed_subtotal(), $this ) ) {
throw new Exception( self::E_WC_COUPON_MIN_SPEND_LIMIT_NOT_MET );
}
}
/**
* Ensure coupon amount is valid or throw exception.
*
* @throws Exception
*/
private function validate_maximum_amount() {
if ( $this->maximum_amount > 0 && apply_filters( 'woocommerce_coupon_validate_maximum_amount', wc_format_decimal( $this->maximum_amount ) < WC()->cart->get_displayed_subtotal(), $this ) ) {
throw new Exception( self::E_WC_COUPON_MAX_SPEND_LIMIT_MET );
}
}
/**
* Ensure coupon is valid for products in the cart is valid or throw exception.
*
* @throws Exception
*/
private function validate_product_ids() {
if ( sizeof( $this->product_ids ) > 0 ) {
$valid_for_cart = false;
if ( ! WC()->cart->is_empty() ) {
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
if ( in_array( $cart_item['product_id'], $this->product_ids ) || in_array( $cart_item['variation_id'], $this->product_ids ) || in_array( $cart_item['data']->get_parent(), $this->product_ids ) ) {
$valid_for_cart = true;
}
}
}
if ( ! $valid_for_cart ) {
throw new Exception( self::E_WC_COUPON_NOT_APPLICABLE );
}
}
}
/**
* Ensure coupon is valid for product categories in the cart is valid or throw exception.
*
* @throws Exception
*/
private function validate_product_categories() {
if ( sizeof( $this->product_categories ) > 0 ) {
$valid_for_cart = false;
if ( ! WC()->cart->is_empty() ) {
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
$product_cats = wc_get_product_cat_ids( $cart_item['product_id'] );
// If we find an item with a cat in our allowed cat list, the coupon is valid
if ( sizeof( array_intersect( $product_cats, $this->product_categories ) ) > 0 ) {
$valid_for_cart = true;
}
}
}
if ( ! $valid_for_cart ) {
throw new Exception( self::E_WC_COUPON_NOT_APPLICABLE );
}
}
}
/**
* Ensure coupon is valid for sale items in the cart is valid or throw exception.
*
* @throws Exception
*/
private function validate_sale_items() {
if ( 'yes' === $this->exclude_sale_items && $this->is_type( wc_get_product_coupon_types() ) ) {
$valid_for_cart = false;
$product_ids_on_sale = wc_get_product_ids_on_sale();
if ( ! WC()->cart->is_empty() ) {
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
if ( ! empty( $cart_item['variation_id'] ) ) {
if ( ! in_array( $cart_item['variation_id'], $product_ids_on_sale, true ) ) {
$valid_for_cart = true;
}
} elseif ( ! in_array( $cart_item['product_id'], $product_ids_on_sale, true ) ) {
$valid_for_cart = true;
}
}
}
if ( ! $valid_for_cart ) {
throw new Exception( self::E_WC_COUPON_NOT_VALID_SALE_ITEMS );
}
}
}
/**
* All exclusion rules must pass at the same time for a product coupon to be valid.
*/
private function validate_excluded_items() {
if ( ! WC()->cart->is_empty() && $this->is_type( wc_get_product_coupon_types() ) ) {
$valid = false;
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
if ( $this->is_valid_for_product( $cart_item['data'], $cart_item ) ) {
$valid = true;
break;
}
}
if ( ! $valid ) {
throw new Exception( self::E_WC_COUPON_NOT_APPLICABLE );
}
}
}
/**
* Cart discounts cannot be added if non-eligble product is found in cart.
*/
private function validate_cart_excluded_items() {
if ( ! $this->is_type( wc_get_product_coupon_types() ) ) {
$this->validate_cart_excluded_product_ids();
$this->validate_cart_excluded_product_categories();
$this->validate_cart_excluded_sale_items();
}
}
/**
* Exclude products from cart.
*
* @throws Exception
*/
private function validate_cart_excluded_product_ids() {
// Exclude Products
if ( sizeof( $this->exclude_product_ids ) > 0 ) {
$valid_for_cart = true;
if ( ! WC()->cart->is_empty() ) {
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
if ( in_array( $cart_item['product_id'], $this->exclude_product_ids ) || in_array( $cart_item['variation_id'], $this->exclude_product_ids ) || in_array( $cart_item['data']->get_parent(), $this->exclude_product_ids ) ) {
$valid_for_cart = false;
}
}
}
if ( ! $valid_for_cart ) {
throw new Exception( self::E_WC_COUPON_EXCLUDED_PRODUCTS );
}
}
}
/**
* Exclude categories from cart.
*
* @throws Exception
*/
private function validate_cart_excluded_product_categories() {
if ( sizeof( $this->exclude_product_categories ) > 0 ) {
$valid_for_cart = true;
if ( ! WC()->cart->is_empty() ) {
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
$product_cats = wc_get_product_cat_ids( $cart_item['product_id'] );
if ( sizeof( array_intersect( $product_cats, $this->exclude_product_categories ) ) > 0 ) {
$valid_for_cart = false;
}
}
}
if ( ! $valid_for_cart ) {
throw new Exception( self::E_WC_COUPON_EXCLUDED_CATEGORIES );
}
}
}
/**
* Exclude sale items from cart.
*
* @throws Exception
*/
private function validate_cart_excluded_sale_items() {
if ( $this->exclude_sale_items == 'yes' ) {
$valid_for_cart = true;
$product_ids_on_sale = wc_get_product_ids_on_sale();
if ( ! WC()->cart->is_empty() ) {
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
if ( ! empty( $cart_item['variation_id'] ) ) {
if ( in_array( $cart_item['variation_id'], $product_ids_on_sale, true ) ) {
$valid_for_cart = false;
}
} elseif ( in_array( $cart_item['product_id'], $product_ids_on_sale, true ) ) {
$valid_for_cart = false;
}
}
}
if ( ! $valid_for_cart ) {
throw new Exception( self::E_WC_COUPON_NOT_VALID_SALE_ITEMS );
}
}
}
/**
* Check if a coupon is valid.
*
* @return boolean validity
* @throws Exception
*/
public function is_valid() {
try {
$this->validate_exists();
$this->validate_usage_limit();
$this->validate_user_usage_limit();
$this->validate_expiry_date();
$this->validate_minimum_amount();
$this->validate_maximum_amount();
$this->validate_product_ids();
$this->validate_product_categories();
$this->validate_sale_items();
$this->validate_excluded_items();
$this->validate_cart_excluded_items();
if ( ! apply_filters( 'woocommerce_coupon_is_valid', true, $this ) ) {
throw new Exception( self::E_WC_COUPON_INVALID_FILTERED );
}
} catch ( Exception $e ) {
$this->error_message = $this->get_coupon_error( $e->getMessage() );
return false;
}
return true;
}
/**
* Check if a coupon is valid.
*
* @return bool
*/
public function is_valid_for_cart() {
return apply_filters( 'woocommerce_coupon_is_valid_for_cart', $this->is_type( wc_get_cart_coupon_types() ), $this );
}
/**
* Check if a coupon is valid for a product.
*
* @param WC_Product $product
* @return boolean
*/
public function is_valid_for_product( $product, $values = array() ) {
if ( ! $this->is_type( wc_get_product_coupon_types() ) ) {
return apply_filters( 'woocommerce_coupon_is_valid_for_product', false, $product, $this, $values );
}
$valid = false;
$product_cats = wc_get_product_cat_ids( $product->id );
$product_ids = array( $product->id, ( isset( $product->variation_id ) ? $product->variation_id : 0 ), $product->get_parent() );
// Specific products get the discount
if ( sizeof( $this->product_ids ) && sizeof( array_intersect( $product_ids, $this->product_ids ) ) ) {
$valid = true;
}
// Category discounts
if ( sizeof( $this->product_categories ) && sizeof( array_intersect( $product_cats, $this->product_categories ) ) ) {
$valid = true;
}
// No product ids - all items discounted
if ( ! sizeof( $this->product_ids ) && ! sizeof( $this->product_categories ) ) {
$valid = true;
}
// Specific product ID's excluded from the discount
if ( sizeof( $this->exclude_product_ids ) && sizeof( array_intersect( $product_ids, $this->exclude_product_ids ) ) ) {
$valid = false;
}
// Specific categories excluded from the discount
if ( sizeof( $this->exclude_product_categories ) && sizeof( array_intersect( $product_cats, $this->exclude_product_categories ) ) ) {
$valid = false;
}
// Sale Items excluded from discount
if ( 'yes' === $this->exclude_sale_items ) {
$product_ids_on_sale = wc_get_product_ids_on_sale();
if ( isset( $product->variation_id ) ) {
if ( in_array( $product->variation_id, $product_ids_on_sale, true ) ) {
$valid = false;
}
} elseif ( in_array( $product->id, $product_ids_on_sale, true ) ) {
$valid = false;
}
}
return apply_filters( 'woocommerce_coupon_is_valid_for_product', $valid, $product, $this, $values );
}
/**
* Get discount amount for a cart item.
*
* @param float $discounting_amount Amount the coupon is being applied to
* @param array|null $cart_item Cart item being discounted if applicable
* @param boolean $single True if discounting a single qty item, false if its the line
* @return float Amount this coupon has discounted
*/
public function get_discount_amount( $discounting_amount, $cart_item = null, $single = false ) {
$discount = 0;
$cart_item_qty = is_null( $cart_item ) ? 1 : $cart_item['quantity'];
if ( $this->is_type( array( 'percent_product', 'percent' ) ) ) {
$discount = $this->coupon_amount * ( $discounting_amount / 100 );
} elseif ( $this->is_type( 'fixed_cart' ) && ! is_null( $cart_item ) && WC()->cart->subtotal_ex_tax ) {
/**
* This is the most complex discount - we need to divide the discount between rows based on their price in.
* proportion to the subtotal. This is so rows with different tax rates get a fair discount, and so rows.
* with no price (free) don't get discounted.
*
* Get item discount by dividing item cost by subtotal to get a %.
*
* Uses price inc tax if prices include tax to work around https://github.com/woothemes/woocommerce/issues/7669 and https://github.com/woothemes/woocommerce/issues/8074.
*/
if ( wc_prices_include_tax() ) {
$discount_percent = ( $cart_item['data']->get_price_including_tax() * $cart_item_qty ) / WC()->cart->subtotal;
} else {
$discount_percent = ( $cart_item['data']->get_price_excluding_tax() * $cart_item_qty ) / WC()->cart->subtotal_ex_tax;
}
$discount = ( $this->coupon_amount * $discount_percent ) / $cart_item_qty;
} elseif ( $this->is_type( 'fixed_product' ) ) {
$discount = min( $this->coupon_amount, $discounting_amount );
$discount = $single ? $discount : $discount * $cart_item_qty;
}
$discount = min( $discount, $discounting_amount );
// Handle the limit_usage_to_x_items option
if ( $this->is_type( array( 'percent_product', 'fixed_product' ) ) ) {
if ( $discounting_amount ) {
if ( '' === $this->limit_usage_to_x_items ) {
$limit_usage_qty = $cart_item_qty;
} else {
$limit_usage_qty = min( $this->limit_usage_to_x_items, $cart_item_qty );
$this->limit_usage_to_x_items = max( 0, $this->limit_usage_to_x_items - $limit_usage_qty );
}
if ( $single ) {
$discount = ( $discount * $limit_usage_qty ) / $cart_item_qty;
} else {
$discount = ( $discount / $cart_item_qty ) * $limit_usage_qty;
}
}
}
$discount = wc_cart_round_discount( $discount, wc_get_rounding_precision() );
return apply_filters( 'woocommerce_coupon_get_discount_amount', $discount, $discounting_amount, $cart_item, $single, $this );
}
/**
* Converts one of the WC_Coupon message/error codes to a message string and.
* displays the message/error.
*
* @param int $msg_code Message/error code.
*/
public function add_coupon_message( $msg_code ) {
$msg = $msg_code < 200 ? $this->get_coupon_error( $msg_code ) : $this->get_coupon_message( $msg_code );
if ( ! $msg ) {
return;
}
if ( $msg_code < 200 ) {
wc_add_notice( $msg, 'error' );
} else {
wc_add_notice( $msg );
}
}
/**
* Map one of the WC_Coupon message codes to a message string.
*
* @param integer $msg_code
* @return string| Message/error string
*/
public function get_coupon_message( $msg_code ) {
switch ( $msg_code ) {
case self::WC_COUPON_SUCCESS :
$msg = __( 'Coupon code applied successfully.', 'woocommerce' );
break;
case self::WC_COUPON_REMOVED :
$msg = __( 'Coupon code removed successfully.', 'woocommerce' );
break;
default:
$msg = '';
break;
}
return apply_filters( 'woocommerce_coupon_message', $msg, $msg_code, $this );
}
/**
* Map one of the WC_Coupon error codes to a message string.
*
* @param int $err_code Message/error code.
* @return string| Message/error string
*/
public function get_coupon_error( $err_code ) {
switch ( $err_code ) {
case self::E_WC_COUPON_INVALID_FILTERED:
$err = __( 'Coupon is not valid.', 'woocommerce' );
break;
case self::E_WC_COUPON_NOT_EXIST:
$err = sprintf( __( 'Coupon "%s" does not exist!', 'woocommerce' ), $this->code );
break;
case self::E_WC_COUPON_INVALID_REMOVED:
$err = sprintf( __( 'Sorry, it seems the coupon "%s" is invalid - it has now been removed from your order.', 'woocommerce' ), $this->code );
break;
case self::E_WC_COUPON_NOT_YOURS_REMOVED:
$err = sprintf( __( 'Sorry, it seems the coupon "%s" is not yours - it has now been removed from your order.', 'woocommerce' ), $this->code );
break;
case self::E_WC_COUPON_ALREADY_APPLIED:
$err = __( 'Coupon code already applied!', 'woocommerce' );
break;
case self::E_WC_COUPON_ALREADY_APPLIED_INDIV_USE_ONLY:
$err = sprintf( __( 'Sorry, coupon "%s" has already been applied and cannot be used in conjunction with other coupons.', 'woocommerce' ), $this->code );
break;
case self::E_WC_COUPON_USAGE_LIMIT_REACHED:
$err = __( 'Coupon usage limit has been reached.', 'woocommerce' );
break;
case self::E_WC_COUPON_EXPIRED:
$err = __( 'This coupon has expired.', 'woocommerce' );
break;
case self::E_WC_COUPON_MIN_SPEND_LIMIT_NOT_MET:
$err = sprintf( __( 'The minimum spend for this coupon is %s.', 'woocommerce' ), wc_price( $this->minimum_amount ) );
break;
case self::E_WC_COUPON_MAX_SPEND_LIMIT_MET:
$err = sprintf( __( 'The maximum spend for this coupon is %s.', 'woocommerce' ), wc_price( $this->maximum_amount ) );
break;
case self::E_WC_COUPON_NOT_APPLICABLE:
$err = __( 'Sorry, this coupon is not applicable to your cart contents.', 'woocommerce' );
break;
case self::E_WC_COUPON_EXCLUDED_PRODUCTS:
// Store excluded products that are in cart in $products
$products = array();
if ( ! WC()->cart->is_empty() ) {
foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
if ( in_array( $cart_item['product_id'], $this->exclude_product_ids ) || in_array( $cart_item['variation_id'], $this->exclude_product_ids ) || in_array( $cart_item['data']->get_parent(), $this->exclude_product_ids ) ) {
$products[] = $cart_item['data']->get_title();
}
}
}
$err = sprintf( __( 'Sorry, this coupon is not applicable to the products: %s.', 'woocommerce' ), implode( ', ', $products ) );
break;
case self::E_WC_COUPON_EXCLUDED_CATEGORIES:
// Store excluded categories that are in cart in $categories
$categories = array();
if ( ! WC()->cart->is_empty() ) {
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
$product_cats = wc_get_product_cat_ids( $cart_item['product_id'] );
if ( sizeof( $intersect = array_intersect( $product_cats, $this->exclude_product_categories ) ) > 0 ) {
foreach( $intersect as $cat_id) {
$cat = get_term( $cat_id, 'product_cat' );
$categories[] = $cat->name;
}
}
}
}
$err = sprintf( __( 'Sorry, this coupon is not applicable to the categories: %s.', 'woocommerce' ), implode( ', ', array_unique( $categories ) ) );
break;
case self::E_WC_COUPON_NOT_VALID_SALE_ITEMS:
$err = __( 'Sorry, this coupon is not valid for sale items.', 'woocommerce' );
break;
default:
$err = '';
break;
}
return apply_filters( 'woocommerce_coupon_error', $err, $err_code, $this );
}
/**
* Map one of the WC_Coupon error codes to an error string.
* No coupon instance will be available where a coupon does not exist,
* so this static method exists.
*
* @param int $err_code Error code
* @return string| Error string
*/
public static function get_generic_coupon_error( $err_code ) {
switch ( $err_code ) {
case self::E_WC_COUPON_NOT_EXIST:
$err = __( 'Coupon does not exist!', 'woocommerce' );
break;
case self::E_WC_COUPON_PLEASE_ENTER:
$err = __( 'Please enter a coupon code.', 'woocommerce' );
break;
default:
$err = '';
break;
}
// When using this static method, there is no $this to pass to filter
return apply_filters( 'woocommerce_coupon_error', $err, $err_code, null );
}
}