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woocommerce
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woocommerce/classes/class-wc-coupon.php

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PHP
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<?php
/**
* WooCommerce coupons
*
* The WooCommerce coupons class gets coupon data from storage and checks coupon validity
*
* @class WC_Coupon
* @package WooCommerce
* @category Class
* @author WooThemes
*/
class WC_Coupon {
var $code;
var $id;
var $type;
var $amount;
var $individual_use;
var $product_ids;
var $usage_limit;
var $usage_count;
var $expiry_date;
var $apply_before_tax;
var $free_shipping;
var $product_categories;
var $exclude_product_categories;
var $minimum_amount;
var $customer_email;
var $coupon_custom_fields;
var $discount_type;
var $coupon_amount;
/** get coupon with $code */
function __construct( $code ) {
global $wpdb;
$this->code = esc_attr($code);
$coupon_data = apply_filters('woocommerce_get_shop_coupon_data', false, $code);
if ($coupon_data) :
$this->id = $coupon_data['id'];
$this->type = $coupon_data['type'];
$this->amount = $coupon_data['amount'];
$this->individual_use = $coupon_data['individual_use'];
$this->product_ids = $coupon_data['product_ids'];
$this->exclude_product_ids = $coupon_data['exclude_product_ids'];
$this->usage_limit = $coupon_data['usage_limit'];
$this->usage_count = $coupon_data['usage_count'];
$this->expiry_date = $coupon_data['expiry_date'];
$this->apply_before_tax = $coupon_data['apply_before_tax'];
$this->free_shipping = $coupon_data['free_shipping'];
$this->product_categories = $coupon_data['product_categories'];
$this->exclude_product_categories = $coupon_data['exclude_product_categories'];
$this->minimum_amount = $coupon_data['minimum_amount'];
$this->customer_email = $coupon_data['customer_email'];
return true;
else:
$coupon_id = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE BINARY post_title = %s AND post_type= %s", $this->code, 'shop_coupon' ) );
if ( $coupon_id ) $coupon = get_page($coupon_id); else return false;
// Check titles match
if ($this->code!==$coupon->post_title) return false;
if ($coupon && $coupon->post_status == 'publish') :
$this->id = $coupon->ID;
$this->coupon_custom_fields = get_post_custom( $this->id );
$load_data = array(
'discount_type' => 'fixed_cart',
'coupon_amount' => 0,
'individual_use' => 'no',
'product_ids' => '',
'exclude_product_ids' => '',
'usage_limit' => '',
'usage_count' => '',
'expiry_date' => '',
'apply_before_tax' => 'yes',
'free_shipping' => 'no',
'product_categories' => array(),
'exclude_product_categories' => array(),
'minimum_amount' => '',
'customer_email' => array()
);
foreach ($load_data as $key => $default) $this->$key = (isset($this->coupon_custom_fields[$key][0]) && $this->coupon_custom_fields[$key][0]!=='') ? $this->coupon_custom_fields[$key][0] : $default;
// Alias
$this->type = $this->discount_type;
$this->amount = $this->coupon_amount;
// Formatting
$this->product_ids = array_filter(array_map('trim', explode(',', $this->product_ids)));
$this->exclude_product_ids = array_filter(array_map('trim', explode(',', $this->exclude_product_ids)));
$this->expiry_date = ($this->expiry_date) ? strtotime($this->expiry_date) : '';
$this->product_categories = array_filter(array_map('trim', (array) maybe_unserialize($this->product_categories)));
$this->exclude_product_categories = array_filter(array_map('trim', (array) maybe_unserialize($this->exclude_product_categories)));
$this->customer_email = array_filter(array_map('trim', array_map('strtolower', (array) maybe_unserialize($this->customer_email))));
return true;
endif;
endif;
return false;
}
/** Check if coupon needs applying before tax **/
function apply_before_tax() {
if ($this->apply_before_tax=='yes') return true; else return false;
}
function enable_free_shipping() {
if ($this->free_shipping=='yes') return true; else return false;
}
/** Increase usage count */
function inc_usage_count() {
$this->usage_count++;
update_post_meta( $this->id, 'usage_count', $this->usage_count );
}
/** Decrease usage count */
function dcr_usage_count() {
$this->usage_count--;
update_post_meta( $this->id, 'usage_count', $this->usage_count );
}
/**
* is_valid function.
*
* Check if a coupon is valid. Return a reason code if invaid. Reason codes:
*
* @access public
* @return void
*/
function is_valid() {
global $woocommerce;
if ($this->id) :
$valid = true;
$error = false;
// Usage Limit
if ($this->usage_limit>0) :
if ($this->usage_count>=$this->usage_limit) :
$valid = false;
$error = __( 'Coupon usage limit has been reached.', 'woocommerce' );
endif;
endif;
// Expired
if ($this->expiry_date) :
if (strtotime('NOW')>$this->expiry_date) :
$valid = false;
$error = __( 'This coupon has expired.', 'woocommerce' );
endif;
endif;
// Minimum spend
if ($this->minimum_amount>0) :
if ( $this->minimum_amount > $woocommerce->cart->subtotal ) :
$valid = false;
$error = sprintf( __( 'The minimum spend for this coupon is %s.', 'woocommerce' ), $this->minimum_amount );
endif;
endif;
// Product ids - If a product included is found in the cart then its valid
if (sizeof( $this->product_ids )>0) :
$valid_for_cart = false;
if (sizeof($woocommerce->cart->get_cart())>0) : foreach ($woocommerce->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;
endif;
endforeach; endif;
if ( ! $valid_for_cart ) $valid = false;
endif;
// Category ids - If a product included is found in the cart then its valid
if (sizeof( $this->product_categories )>0) :
$valid_for_cart = false;
if (sizeof($woocommerce->cart->get_cart())>0) : foreach ($woocommerce->cart->get_cart() as $cart_item_key => $cart_item) :
$product_cats = wp_get_post_terms($cart_item['product_id'], 'product_cat', array("fields" => "ids"));
if ( sizeof( array_intersect( $product_cats, $this->product_categories ) ) > 0 ) $valid_for_cart = true;
endforeach; endif;
if ( ! $valid_for_cart ) $valid = false;
endif;
// Cart discounts cannot be added if non-eligble product is found in cart
if ($this->type!='fixed_product' && $this->type!='percent_product') :
// Exclude Products
if (sizeof( $this->exclude_product_ids )>0) :
$valid_for_cart = true;
if (sizeof($woocommerce->cart->get_cart())>0) : foreach ($woocommerce->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;
endif;
endforeach; endif;
if ( ! $valid_for_cart ) $valid = false;
endif;
// Exclude Categories
if (sizeof( $this->exclude_product_categories )>0) :
$valid_for_cart = true;
if (sizeof($woocommerce->cart->get_cart())>0) : foreach ($woocommerce->cart->get_cart() as $cart_item_key => $cart_item) :
$product_cats = wp_get_post_terms($cart_item['product_id'], 'product_cat', array("fields" => "ids"));
if ( sizeof( array_intersect( $product_cats, $this->exclude_product_categories ) ) > 0 ) $valid_for_cart = false;
endforeach; endif;
if ( ! $valid_for_cart ) $valid = false;
endif;
endif;
$valid = apply_filters( 'woocommerce_coupon_is_valid', $valid, $this );
if ( $valid )
return true;
endif;
return new WP_Error( 'coupon_error', apply_filters( 'woocommerce_coupon_error', $error, $this ) );
}
}
/** Deprecated */
class woocommerce_coupon extends WC_Coupon {
public function __construct( $code ) {
_deprecated_function( 'woocommerce_coupon', '1.4', 'WC_Coupon()' );
parent::__construct( $code );
}
}
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