woocommerce/includes/class-wc-coupon.php

1388 lines
43 KiB
PHP

<?php
include_once( 'legacy/class-wc-legacy-coupon.php' );
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* WooCommerce coupons.
*
* The WooCommerce coupons class gets coupon data from storage and checks coupon validity.
*
* @class WC_Coupon
* @version 2.7.0
* @package WooCommerce/Classes
* @category Class
* @author WooThemes
*/
class WC_Coupon extends WC_Legacy_Coupon {
/**
* Data array, with defaults.
* @since 2.7.0
* @var array
*/
protected $data = array(
'code' => '',
'amount' => 0,
'date_created' => '',
'date_modified' => '',
'discount_type' => 'fixed_cart',
'description' => '',
'date_expires' => '',
'usage_count' => 0,
'individual_use' => false,
'product_ids' => array(),
'excluded_product_ids' => array(),
'usage_limit' => 0,
'usage_limit_per_user' => 0,
'limit_usage_to_x_items' => 0,
'free_shipping' => false,
'product_categories' => array(),
'excluded_product_categories' => array(),
'exclude_sale_items' => false,
'minimum_amount' => '',
'maximum_amount' => '',
'email_restrictions' => array(),
'used_by' => '',
);
// 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;
/**
* Internal meta type used to store coupon data.
* @since 2.7.0
* @var string
*/
protected $meta_type = 'post';
/**
* Data stored in meta keys, but not considered "meta" for a coupon.
* @since 2.7.0
* @var array
*/
protected $internal_meta_keys = array(
'discount_type',
'coupon_amount',
'expiry_date',
'usage_count',
'individual_use',
'product_ids',
'exclude_product_ids',
'usage_limit',
'usage_limit_per_user',
'limit_usage_to_x_items',
'free_shipping',
'product_categories',
'exclude_product_categories',
'exclude_sale_items',
'minimum_amount',
'maximum_amount',
'customer_email',
'_used_by',
'_edit_lock',
'_edit_last',
);
/**
* Coupon constructor. Loads coupon data.
* @param mixed $data Coupon data, object, ID or code.
*/
public function __construct( $data = '' ) {
parent::__construct( $data );
if ( $data instanceof WC_Coupon ) {
$this->read( absint( $data->get_id() ) );
} elseif ( $coupon = apply_filters( 'woocommerce_get_shop_coupon_data', false, $data ) ) {
_doing_it_wrong( 'woocommerce_get_shop_coupon_data', 'Reading a manual coupon via woocommerce_get_shop_coupon_data has been deprecated. Please sent an instance of WC_Coupon instead.', '2.7' );
$this->read_manual_coupon( $data, $coupon );
} elseif ( is_numeric( $data ) && 'shop_coupon' === get_post_type( $data ) ) {
$this->read( $data );
} elseif ( ! empty( $data ) ) {
$this->read( wc_get_coupon_id_by_code( $data ) );
$this->set_code( $data );
}
}
/**
* Checks the coupon type.
* @param string $type Array or string of types
* @return bool
*/
public function is_type( $type ) {
return ( $this->get_discount_type() == $type || ( is_array( $type ) && in_array( $this->get_discount_type(), $type ) ) );
}
/*
|--------------------------------------------------------------------------
| Getters
|--------------------------------------------------------------------------
|
| Methods for getting data from the coupon object.
|
*/
/**
* Get coupon code.
* @since 2.7.0
* @return string
*/
public function get_code() {
return $this->data['code'];
}
/**
* Get coupon description.
* @since 2.7.0
* @return string
*/
public function get_description() {
return $this->data['description'];
}
/**
* Get discount type.
* @since 2.7.0
* @return string
*/
public function get_discount_type() {
return $this->data['discount_type'];
}
/**
* Get coupon code.
* @since 2.7.0
* @return float
*/
public function get_amount() {
return wc_format_decimal( $this->data['amount'] );
}
/**
* Get coupon expiration date.
* @since 2.7.0
* @return int
*/
public function get_date_expires() {
return $this->data['date_expires'];
}
/**
* Get date_created
* @since 2.7.0
* @return int
*/
public function get_date_created() {
return $this->data['date_created'];
}
/**
* Get date_modified
* @since 2.7.0
* @return int
*/
public function get_date_modified() {
return $this->data['date_modified'];
}
/**
* Get coupon usage count.
* @since 2.7.0
* @return integer
*/
public function get_usage_count() {
return $this->data['usage_count'];
}
/**
* Get the "indvidual use" checkbox status.
* @since 2.7.0
* @return bool
*/
public function get_individual_use() {
return $this->data['individual_use'];
}
/**
* Get product IDs this coupon can apply to.
* @since 2.7.0
* @return array
*/
public function get_product_ids() {
return $this->data['product_ids'];
}
/**
* Get product IDs that this coupon should not apply to.
* @since 2.7.0
* @return array
*/
public function get_excluded_product_ids() {
return $this->data['excluded_product_ids'];
}
/**
* Get coupon usage limit.
* @since 2.7.0
* @return integer
*/
public function get_usage_limit() {
return $this->data['usage_limit'];
}
/**
* Get coupon usage limit per customer (for a single customer)
* @since 2.7.0
* @return integer
*/
public function get_usage_limit_per_user() {
return $this->data['usage_limit_per_user'];
}
/**
* Usage limited to certain amount of items
* @since 2.7.0
* @return integer
*/
public function get_limit_usage_to_x_items() {
return $this->data['limit_usage_to_x_items'];
}
/**
* If this coupon grants free shipping or not.
* @since 2.7.0
* @return bool
*/
public function get_free_shipping() {
return $this->data['free_shipping'];
}
/**
* Get product categories this coupon can apply to.
* @since 2.7.0
* @return array
*/
public function get_product_categories() {
return $this->data['product_categories'];
}
/**
* Get product categories this coupon cannot not apply to.
* @since 2.7.0
* @return array
*/
public function get_excluded_product_categories() {
return $this->data['excluded_product_categories'];
}
/**
* If this coupon should exclude items on sale.
* @since 2.7.0
* @return bool
*/
public function get_exclude_sale_items() {
return $this->data['exclude_sale_items'];
}
/**
* Get minium spend amount.
* @since 2.7.0
* @return float
*/
public function get_minimum_amount() {
return wc_format_decimal( $this->data['minimum_amount'] );
}
/**
* Get maximum spend amount.
* @since 2.7.0
* @return float
*/
public function get_maximum_amount() {
return wc_format_decimal( $this->data['maximum_amount'] );
}
/**
* Get emails to check customer usage restrictions.
* @since 2.7.0
* @return array
*/
public function get_email_restrictions() {
return $this->data['email_restrictions'];
}
/**
* Get records of all users who have used the current coupon.
*
* @return array
*/
public function get_used_by() {
return $this->data['used_by'];
}
/**
* 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->get_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/woocommerce/woocommerce/issues/7669 and https://github.com/woocommerce/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->get_amount() * $discount_percent ) / $cart_item_qty;
} elseif ( $this->is_type( 'fixed_product' ) ) {
$discount = min( $this->get_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->get_limit_usage_to_x_items() ) {
$limit_usage_qty = $cart_item_qty;
} else {
$limit_usage_qty = min( $this->get_limit_usage_to_x_items(), $cart_item_qty );
$this->set_limit_usage_to_x_items( max( 0, $this->get_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 = round( $discount, wc_get_rounding_precision() );
return apply_filters( 'woocommerce_coupon_get_discount_amount', $discount, $discounting_amount, $cart_item, $single, $this );
}
/*
|--------------------------------------------------------------------------
| Setters
|--------------------------------------------------------------------------
|
| Functions for setting coupon data. These should not update anything in the
| database itself and should only change what is stored in the class
| object.
|
*/
/**
* Set coupon code.
* @since 2.7.0
* @param string $code
* @throws WC_Data_Exception
*/
public function set_code( $code ) {
$this->data['code'] = apply_filters( 'woocommerce_coupon_code', $code );
}
/**
* Set coupon description.
* @since 2.7.0
* @param string $description
* @throws WC_Data_Exception
*/
public function set_description( $description ) {
$this->data['description'] = $description;
}
/**
* Set discount type.
* @since 2.7.0
* @param string $discount_type
* @throws WC_Data_Exception
*/
public function set_discount_type( $discount_type ) {
if ( ! in_array( $discount_type, array_keys( wc_get_coupon_types() ) ) ) {
$this->error( 'coupon_invalid_discount_type', __( 'Invalid discount type', 'woocommerce' ) );
}
$this->data['discount_type'] = $discount_type;
}
/**
* Set amount.
* @since 2.7.0
* @param float $amount
* @throws WC_Data_Exception
*/
public function set_amount( $amount ) {
$this->data['amount'] = wc_format_decimal( $amount );
}
/**
* Set expiration date.
* @since 2.7.0
* @param string $timestamp Timestamp
* @throws WC_Data_Exception
*/
public function set_date_expires( $timestamp ) {
$this->data['date_expires'] = is_numeric( $timestamp ) ? $timestamp : strtotime( $timestamp );
}
/**
* Set date_created
* @since 2.7.0
* @param string $timestamp Timestamp
* @throws WC_Data_Exception
*/
public function set_date_created( $timestamp ) {
$this->data['date_created'] = is_numeric( $timestamp ) ? $timestamp : strtotime( $timestamp );
}
/**
* Set date_modified
* @since 2.7.0
* @param string $timestamp
* @throws WC_Data_Exception
*/
public function set_date_modified( $timestamp ) {
$this->data['date_modified'] = is_numeric( $timestamp ) ? $timestamp : strtotime( $timestamp );
}
/**
* Set how many times this coupon has been used.
* @since 2.7.0
* @param int $usage_count
* @throws WC_Data_Exception
*/
public function set_usage_count( $usage_count ) {
$this->data['usage_count'] = absint( $usage_count );
}
/**
* Set if this coupon can only be used once.
* @since 2.7.0
* @param bool $is_individual_use
* @throws WC_Data_Exception
*/
public function set_individual_use( $is_individual_use ) {
$this->data['individual_use'] = (bool) $is_individual_use;
}
/**
* Set the product IDs this coupon can be used with.
* @since 2.7.0
* @param array $product_ids
* @throws WC_Data_Exception
*/
public function set_product_ids( $product_ids ) {
$this->data['product_ids'] = (array) $product_ids;
}
/**
* Set the product IDs this coupon cannot be used with.
* @since 2.7.0
* @param array $excluded_product_ids
* @throws WC_Data_Exception
*/
public function set_excluded_product_ids( $excluded_product_ids ) {
$this->data['excluded_product_ids'] = (array) $excluded_product_ids;
}
/**
* Set the amount of times this coupon can be used.
* @since 2.7.0
* @param int $usage_limit
* @throws WC_Data_Exception
*/
public function set_usage_limit( $usage_limit ) {
$this->data['usage_limit'] = absint( $usage_limit );
}
/**
* Set the amount of times this coupon can be used per user.
* @since 2.7.0
* @param int $usage_limit
* @throws WC_Data_Exception
*/
public function set_usage_limit_per_user( $usage_limit ) {
$this->data['usage_limit_per_user'] = absint( $usage_limit );
}
/**
* Set usage limit to x number of items.
* @since 2.7.0
* @param int $limit_usage_to_x_items
* @throws WC_Data_Exception
*/
public function set_limit_usage_to_x_items( $limit_usage_to_x_items ) {
$this->data['limit_usage_to_x_items'] = $limit_usage_to_x_items;
}
/**
* Set if this coupon enables free shipping or not.
* @since 2.7.0
* @param bool $free_shipping
* @throws WC_Data_Exception
*/
public function set_free_shipping( $free_shipping ) {
$this->data['free_shipping'] = (bool) $free_shipping;
}
/**
* Set the product category IDs this coupon can be used with.
* @since 2.7.0
* @param array $product_categories
* @throws WC_Data_Exception
*/
public function set_product_categories( $product_categories ) {
$this->data['product_categories'] = (array) $product_categories;
}
/**
* Set the product category IDs this coupon cannot be used with.
* @since 2.7.0
* @param array $excluded_product_categories
* @throws WC_Data_Exception
*/
public function set_excluded_product_categories( $excluded_product_categories ) {
$this->data['excluded_product_categories'] = (array) $excluded_product_categories;
}
/**
* Set if this coupon should excluded sale items or not.
* @since 2.7.0
* @param bool $exclude_sale_items
* @throws WC_Data_Exception
*/
public function set_exclude_sale_items( $exclude_sale_items ) {
$this->data['exclude_sale_items'] = (bool) $exclude_sale_items;
}
/**
* Set the minimum spend amount.
* @since 2.7.0
* @param float $amount
* @throws WC_Data_Exception
*/
public function set_minimum_amount( $amount ) {
$this->data['minimum_amount'] = wc_format_decimal( $amount );
}
/**
* Set the maximum spend amount.
* @since 2.7.0
* @param float $amount
* @throws WC_Data_Exception
*/
public function set_maximum_amount( $amount ) {
$this->data['maximum_amount'] = wc_format_decimal( $amount );
}
/**
* Set email restrictions.
* @since 2.7.0
* @param array $emails
* @throws WC_Data_Exception
*/
public function set_email_restrictions( $emails = array() ) {
$emails = array_filter( array_map( 'sanitize_email', (array) $emails ) );
foreach ( $emails as $email ) {
if ( ! is_email( $email ) ) {
$this->error( 'coupon_invalid_email_address', __( 'Invalid email address restriction', 'woocommerce' ) );
}
}
$this->data['email_restrictions'] = $emails;
}
/**
* Set which users have used this coupon.
* @since 2.7.0
* @param array $used_by
* @throws WC_Data_Exception
*/
public function set_used_by( $used_by ) {
$this->data['used_by'] = array_filter( $used_by );
}
/*
|--------------------------------------------------------------------------
| CRUD methods
|--------------------------------------------------------------------------
|
| Methods which create, read, update and delete coupons from the database.
|
| A save method is included for convenience (chooses update or create based
| on if the order exists yet).
|
*/
/**
* Reads an coupon from the database and sets its data to the class.
* @since 2.7.0
* @param int $coupon_id
*/
public function read( $coupon_id ) {
$this->set_defaults();
if ( ! $coupon_id || ! ( $post_object = get_post( $coupon_id ) ) ) {
return;
}
$this->set_id( $coupon_id );
$this->set_props( array(
'code' => $post_object->post_title,
'description' => $post_object->post_excerpt,
'date_created' => $post_object->post_date,
'date_modified' => $post_object->post_modified,
'date_expires' => get_post_meta( $coupon_id, 'expiry_date', true ),
'discount_type' => get_post_meta( $coupon_id, 'discount_type', true ),
'amount' => get_post_meta( $coupon_id, 'coupon_amount', true ),
'usage_count' => get_post_meta( $coupon_id, 'usage_count', true ),
'individual_use' => 'yes' === get_post_meta( $coupon_id, 'individual_use', true ),
'product_ids' => array_filter( (array) explode( ',', get_post_meta( $coupon_id, 'product_ids', true ) ) ),
'excluded_product_ids' => array_filter( (array) explode( ',', get_post_meta( $coupon_id, 'exclude_product_ids', true ) ) ),
'usage_limit' => get_post_meta( $coupon_id, 'usage_limit', true ),
'usage_limit_per_user' => get_post_meta( $coupon_id, 'usage_limit_per_user', true ),
'limit_usage_to_x_items' => get_post_meta( $coupon_id, 'limit_usage_to_x_items', true ),
'free_shipping' => 'yes' === get_post_meta( $coupon_id, 'free_shipping', true ),
'product_categories' => array_filter( (array) get_post_meta( $coupon_id, 'product_categories', true ) ),
'excluded_product_categories' => array_filter( (array) get_post_meta( $coupon_id, 'exclude_product_categories', true ) ),
'exclude_sale_items' => 'yes' === get_post_meta( $coupon_id, 'exclude_sale_items', true ),
'minimum_amount' => get_post_meta( $coupon_id, 'minimum_amount', true ),
'maximum_amount' => get_post_meta( $coupon_id, 'maximum_amount', true ),
'email_restrictions' => array_filter( (array) get_post_meta( $coupon_id, 'customer_email', true ) ),
'used_by' => array_filter( (array) get_post_meta( $coupon_id, '_used_by' ) ),
) );
$this->read_meta_data();
do_action( 'woocommerce_coupon_loaded', $this );
}
/**
* Create a new coupon.
* @since 2.7.0
*/
public function create() {
$this->set_date_created( current_time( 'timestamp' ) );
$coupon_id = wp_insert_post( apply_filters( 'woocommerce_new_coupon_data', array(
'post_type' => 'shop_coupon',
'post_status' => 'publish',
'post_author' => get_current_user_id(),
'post_title' => $this->get_code(),
'post_content' => '',
'post_excerpt' => $this->get_description(),
'post_date' => date( 'Y-m-d H:i:s', $this->get_date_created() ),
'post_date_gmt' => get_gmt_from_date( date( 'Y-m-d H:i:s', $this->get_date_created() ) ),
) ), true );
if ( $coupon_id ) {
$this->set_id( $coupon_id );
$this->update_post_meta();
$this->save_meta_data();
do_action( 'woocommerce_new_coupon', $coupon_id );
}
}
/**
* Updates an existing coupon.
* @since 2.7.0
*/
public function update() {
$coupon_id = $this->get_id();
$post_data = array(
'ID' => $coupon_id,
'post_title' => $this->get_code(),
'post_excerpt' => $this->get_description(),
);
wp_update_post( $post_data );
$this->update_post_meta();
$this->save_meta_data();
do_action( 'woocommerce_update_coupon', $coupon_id );
}
/**
* Save data (either create or update depending on if we are working on an existing coupon)
* @since 2.7.0
*/
public function save() {
if ( $this->get_id() ) {
$this->update();
} else {
$this->create();
}
}
/**
* Delete coupon from the database.
* @since 2.7.0
*/
public function delete() {
wp_delete_post( $this->get_id() );
do_action( 'woocommerce_delete_coupon', $this->get_id() );
$this->set_id( 0 );
}
/**
* Helper method that updates all the post meta for a coupon based on it's settings in the WC_Coupon class.
* @since 2.7.0
*/
private function update_post_meta() {
update_post_meta( $this->get_id(), 'discount_type', $this->get_discount_type() );
update_post_meta( $this->get_id(), 'coupon_amount', $this->get_amount() );
update_post_meta( $this->get_id(), 'individual_use', ( true === $this->get_individual_use() ) ? 'yes' : 'no' );
update_post_meta( $this->get_id(), 'product_ids', implode( ',', array_filter( array_map( 'intval', $this->get_product_ids() ) ) ) );
update_post_meta( $this->get_id(), 'exclude_product_ids', implode( ',', array_filter( array_map( 'intval', $this->get_excluded_product_ids() ) ) ) );
update_post_meta( $this->get_id(), 'usage_limit', $this->get_usage_limit() );
update_post_meta( $this->get_id(), 'usage_limit_per_user', $this->get_usage_limit_per_user() );
update_post_meta( $this->get_id(), 'limit_usage_to_x_items', $this->get_limit_usage_to_x_items() );
update_post_meta( $this->get_id(), 'usage_count', $this->get_usage_count() );
update_post_meta( $this->get_id(), 'expiry_date', $this->get_date_expires() );
update_post_meta( $this->get_id(), 'free_shipping', ( true === $this->get_free_shipping() ) ? 'yes' : 'no' );
update_post_meta( $this->get_id(), 'product_categories', array_filter( array_map( 'intval', $this->get_product_categories() ) ) );
update_post_meta( $this->get_id(), 'exclude_product_categories', array_filter( array_map( 'intval', $this->get_excluded_product_categories() ) ) );
update_post_meta( $this->get_id(), 'exclude_sale_items', ( true === $this->get_exclude_sale_items() ) ? 'yes' : 'no' );
update_post_meta( $this->get_id(), 'minimum_amount', $this->get_minimum_amount() );
update_post_meta( $this->get_id(), 'maximum_amount', $this->get_maximum_amount() );
update_post_meta( $this->get_id(), 'customer_email', array_filter( array_map( 'sanitize_email', $this->get_email_restrictions() ) ) );
}
/**
* Developers can programically return coupons. This function will read those values into our WC_Coupon class.
* @since 2.7.0
* @param string $code Coupon code
* @param array $coupon Array of coupon properties
*/
public function read_manual_coupon( $code, $coupon ) {
foreach ( $coupon as $key => $value ) {
switch ( $key ) {
case 'excluded_product_ids' :
case 'exclude_product_ids' :
if ( ! is_array( $coupon[ $key ] ) ) {
_doing_it_wrong( $key, $key . ' should be an array instead of a string.', '2.7' );
$coupon['excluded_product_ids'] = wc_string_to_array( $value );
}
break;
case 'exclude_product_categories' :
case 'excluded_product_categories' :
if ( ! is_array( $coupon[ $key ] ) ) {
_doing_it_wrong( $key, $key . ' should be an array instead of a string.', '2.7' );
$coupon['excluded_product_categories'] = wc_string_to_array( $value );
}
break;
case 'product_ids' :
if ( ! is_array( $coupon[ $key ] ) ) {
_doing_it_wrong( $key, $key . ' should be an array instead of a string.', '2.7' );
$coupon[ $key ] = wc_string_to_array( $value );
}
break;
case 'individual_use' :
case 'free_shipping' :
case 'exclude_sale_items' :
if ( ! is_bool( $coupon[ $key ] ) ) {
_doing_it_wrong( $key, $key . ' should be true or false instead of yes or no.', '2.7' );
$coupon[ $key ] = wc_string_to_bool( $value );
}
break;
case 'expiry_date' :
$coupon['date_expires'] = $value;
break;
}
}
$this->set_code( $code );
$this->set_props( $coupon );
}
/*
|--------------------------------------------------------------------------
| Other Actions
|--------------------------------------------------------------------------
*/
/**
* 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->get_id() ) {
$this->data['usage_count']++;
update_post_meta( $this->get_id(), 'usage_count', $this->get_usage_count() );
if ( $used_by ) {
add_post_meta( $this->get_id(), '_used_by', strtolower( $used_by ) );
$this->set_used_by( (array) get_post_meta( $this->get_id(), '_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->get_id() && $this->get_usage_count() > 0 ) {
global $wpdb;
$this->data['usage_count']--;
update_post_meta( $this->get_id(), 'usage_count', $this->get_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->get_id() ) );
if ( $meta_id ) {
delete_metadata_by_mid( 'post', $meta_id );
$this->set_used_by( (array) get_post_meta( $this->get_id(), '_used_by' ) );
}
}
}
}
/*
|--------------------------------------------------------------------------
| Validation & Error Handling
|--------------------------------------------------------------------------
*/
/**
* 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->get_id() ) {
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->get_usage_limit() > 0 && $this->get_usage_count() >= $this->get_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->get_usage_limit_per_user() > 0 && is_user_logged_in() && $this->get_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->get_id(), $user_id ) );
if ( $usage_count >= $this->get_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->get_date_expires() && current_time( 'timestamp' ) > $this->get_date_expires() ) {
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->get_minimum_amount() > 0 && apply_filters( 'woocommerce_coupon_validate_minimum_amount', $this->get_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->get_maximum_amount() > 0 && apply_filters( 'woocommerce_coupon_validate_maximum_amount', $this->get_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->get_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->get_product_ids() ) || in_array( $cart_item['variation_id'], $this->get_product_ids() ) || in_array( $cart_item['data']->get_parent(), $this->get_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->get_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->get_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 ( $this->get_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->get_excluded_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->get_excluded_product_ids() ) || in_array( $cart_item['variation_id'], $this->get_excluded_product_ids() ) || in_array( $cart_item['data']->get_parent(), $this->get_excluded_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->get_excluded_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->get_excluded_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->get_exclude_sale_items() ) {
$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->get_product_ids() ) && sizeof( array_intersect( $product_ids, $this->get_product_ids() ) ) ) {
$valid = true;
}
// Category discounts
if ( sizeof( $this->get_product_categories() ) && sizeof( array_intersect( $product_cats, $this->get_product_categories() ) ) ) {
$valid = true;
}
// No product ids - all items discounted
if ( ! sizeof( $this->get_product_ids() ) && ! sizeof( $this->get_product_categories() ) ) {
$valid = true;
}
// Specific product ID's excluded from the discount
if ( sizeof( $this->get_excluded_product_ids() ) && sizeof( array_intersect( $product_ids, $this->get_excluded_product_ids() ) ) ) {
$valid = false;
}
// Specific categories excluded from the discount
if ( sizeof( $this->get_excluded_product_categories() ) && sizeof( array_intersect( $product_cats, $this->get_excluded_product_categories() ) ) ) {
$valid = false;
}
// Sale Items excluded from discount
if ( $this->get_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 );
}
/**
* 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->get_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->get_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->get_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->get_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->get_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->get_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->get_excluded_product_ids() ) || in_array( $cart_item['variation_id'], $this->get_excluded_product_ids() ) || in_array( $cart_item['data']->get_parent(), $this->get_excluded_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->get_excluded_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 );
}
}