woocommerce/includes/wc-coupon-functions.php

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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* WooCommerce Coupons Functions
*
* Functions for coupon specific things.
*
* @author WooThemes
* @category Core
* @package WooCommerce/Functions
* @version 2.7.0
*/
/**
* Get coupon types.
*
* @return array
*/
function wc_get_coupon_types() {
return (array) apply_filters( 'woocommerce_coupon_discount_types', array(
'percent' => __( 'Percentage discount', 'woocommerce' ),
'fixed_cart' => __( 'Fixed cart discount', 'woocommerce' ),
'fixed_product' => __( 'Fixed product discount', 'woocommerce' ),
) );
}
/**
* Get a coupon type's name.
*
* @param string $type (default: '')
* @return string
*/
function wc_get_coupon_type( $type = '' ) {
$types = wc_get_coupon_types();
return isset( $types[ $type ] ) ? $types[ $type ] : '';
}
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/**
* Coupon types that apply to individual products. Controls which validation rules will apply.
*
* @since 2.5.0
* @return array
*/
function wc_get_product_coupon_types() {
return (array) apply_filters( 'woocommerce_product_coupon_types', array( 'fixed_product', 'percent' ) );
}
/**
* Coupon types that apply to the cart as a whole. Controls which validation rules will apply.
*
* @since 2.5.0
* @return array
*/
function wc_get_cart_coupon_types() {
return (array) apply_filters( 'woocommerce_cart_coupon_types', array( 'fixed_cart' ) );
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}
/**
* Check if coupons are enabled.
* Filterable.
*
* @since 2.5.0
*
* @return array
*/
function wc_coupons_enabled() {
return apply_filters( 'woocommerce_coupons_enabled', 'yes' === get_option( 'woocommerce_enable_coupons' ) );
}
/**
* Get coupon code by ID.
*
* @since 2.7.0
* @param int $id Coupon ID.
* @return string
*/
function wc_get_coupon_code_by_id( $id ) {
$data_store = WC_Data_Store::load( 'coupon' );
return (string) $data_store->get_code_by_id( $id );
}
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/**
* Get coupon code by ID.
*
* @since 2.7.0
* @param string $code
* @param int $exclude Used to exclude an ID from the check if you're checking existance.
* @return int
*/
function wc_get_coupon_id_by_code( $code, $exclude = 0 ) {
$data_store = WC_Data_Store::load( 'coupon' );
$ids = wp_cache_get( WC_Cache_Helper::get_cache_prefix( 'coupons' ) . 'coupon_id_from_code_' . $code, 'coupons' );
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if ( false === $ids ) {
$ids = $data_store->get_ids_by_code( $code );
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if ( $ids ) {
wp_cache_set( WC_Cache_Helper::get_cache_prefix( 'coupons' ) . 'coupon_id_from_code_' . $code, $ids, 'coupons' );
}
}
$ids = array_diff( array_filter( array_map( 'absint', (array) $ids ) ), array( $exclude ) );
return apply_filters( 'woocommerce_get_coupon_id_from_code', absint( current( $ids ) ), $code, $exclude );
}