laipower/wp-content/plugins/easy-digital-downloads/includes/cart/class-edd-cart.php

1515 lines
37 KiB
PHP

<?php
/**
* Cart Object
*
* @package EDD
* @subpackage Classes/Cart
* @copyright Copyright (c) 2018, Easy Digital Downloads, LLC
* @license http://opensource.org/licenses/gpl-2.0.php GNU Public License
* @since 2.7
*/
// Exit if accessed directly
defined( 'ABSPATH' ) || exit;
/**
* EDD_Cart Class
*
* @since 2.7
*/
class EDD_Cart {
/**
* Cart contents
*
* @var array
* @since 2.7
*/
public $contents = array();
/**
* Details of the cart contents
*
* @var array
* @since 2.7
*/
public $details = array();
/**
* Cart Quantity
*
* @var int
* @since 2.7
*/
public $quantity = 0;
/**
* Subtotal
*
* @var float
* @since 2.7
*/
public $subtotal = 0.00;
/**
* Total
*
* @var float
* @since 2.7
*/
public $total = 0.00;
/**
* Fees
*
* @var array
* @since 2.7
*/
public $fees = array();
/**
* Tax
*
* @var float
* @since 2.7
*/
public $tax = 0.00;
/**
* Determined tax rate, based on the customer's address.
* This will be `null` until it is set for the first time.
*
* @var float|null
* @since 3.0
*/
private $tax_rate = null;
/**
* Purchase Session
*
* @var array
* @since 2.7
*/
public $session;
/**
* Discount codes
*
* @var array
* @since 2.7
*/
public $discounts = array();
/**
* Cart saving
*
* @var bool
* @since 2.7
*/
public $saving;
/**
* Saved cart
*
* @var array
* @since 2.7
*/
public $saved;
/**
* Has discount?
*
* @var bool
* @since 2.7
*/
public $has_discounts = null;
/**
* Constructor.
*
* @since 2.7
*/
public function __construct() {
add_action( 'init', array( $this, 'setup_cart' ), 1 );
}
/**
* Sets up cart components
*
* @since 2.7
* @access private
* @return void
*/
public function setup_cart() {
$this->get_contents_from_session();
$this->get_contents();
$this->get_contents_details();
$this->get_all_fees();
$this->get_discounts_from_session();
$this->get_quantity();
}
/**
* Retrieves the tax rate.
*
* This sets up the tax rate once so we don't have to recaculate it each time we need it.
*
* @link https://github.com/easydigitaldownloads/easy-digital-downloads/issues/8455
*
* @since 3.0
* @return float
*/
private function get_tax_rate() {
if ( null === $this->tax_rate ) {
$this->tax_rate = edd_use_taxes() ? edd_get_tax_rate() : 0;
}
return $this->tax_rate;
}
/**
* Sets the tax rate.
*
* @param float $tax_rate
*
* @since 3.0
*/
public function set_tax_rate( $tax_rate ) {
$this->tax_rate = $tax_rate;
}
/**
* Populate the cart with the data stored in the session
*
* @since 2.7
* @return void
*/
public function get_contents_from_session() {
$cart = EDD()->session->get( 'edd_cart' );
$this->contents = $cart;
do_action( 'edd_cart_contents_loaded_from_session', $this );
}
/**
* Populate the discounts with the data stored in the session.
*
* @since 2.7
* @return void
*/
public function get_discounts_from_session() {
$discounts = EDD()->session->get( 'cart_discounts' );
$this->discounts = $discounts;
do_action( 'edd_cart_discounts_loaded_from_session', $this );
}
/**
* Get cart contents
*
* @since 2.7
* @return array List of cart contents.
*/
public function get_contents() {
if ( ! did_action( 'edd_cart_contents_loaded_from_session' ) ) {
$this->get_contents_from_session();
}
$cart = is_array( $this->contents ) && ! empty( $this->contents ) ? array_values( $this->contents ) : array();
$cart_count = count( $cart );
foreach ( $cart as $key => $item ) {
$download = new EDD_Download( $item['id'] );
// If the item is not a download or it's status has changed since it was added to the cart.
if ( empty( $download->ID ) || ! $download->can_purchase() ) {
unset( $cart[ $key ] );
}
}
// We've removed items, reset the cart session
if ( count( $cart ) < $cart_count ) {
$this->contents = $cart;
$this->update_cart();
}
$this->contents = apply_filters( 'edd_cart_contents', $cart );
do_action( 'edd_cart_contents_loaded' );
return (array) $this->contents;
}
/**
* Get cart contents details
*
* @since 2.7
* @return array
*/
public function get_contents_details() {
global $edd_is_last_cart_item, $edd_flat_discount_total;
if ( empty( $this->contents ) ) {
return array();
}
$details = array();
$length = count( $this->contents ) - 1;
foreach ( $this->contents as $key => $item ) {
if( $key >= $length ) {
$edd_is_last_cart_item = true;
}
$item['quantity'] = edd_item_quantities_enabled() ? absint( $item['quantity'] ) : 1;
$item['quantity'] = max( 1, $item['quantity'] ); // Force quantity to 1
$options = isset( $item['options'] ) ? $item['options'] : array();
$price_id = isset( $options['price_id'] ) ? $options['price_id'] : null;
$item_price = $this->get_item_price( $item['id'], $options );
$discount = $this->get_item_discount_amount( $item );
$discount = apply_filters( 'edd_get_cart_content_details_item_discount_amount', $discount, $item );
$quantity = $this->get_item_quantity( $item['id'], $options );
$fees = $this->get_fees( 'fee', $item['id'], $price_id );
$subtotal = floatval( $item_price ) * $quantity;
// Subtotal for tax calculation must exclude fees that are greater than 0. See $this->get_tax_on_fees()
$subtotal_for_tax = $subtotal;
foreach ( $fees as $fee ) {
$fee_amount = (float) $fee['amount'];
$subtotal += $fee_amount;
if( $fee_amount > 0 ) {
continue;
}
$subtotal_for_tax += $fee_amount;
}
$tax = $this->get_item_tax( $item['id'], $options, $subtotal_for_tax - $discount );
if ( edd_prices_include_tax() ) {
$subtotal -= round( $tax, edd_currency_decimal_filter() );
}
$total = $subtotal - $discount + $tax;
if ( $total < 0 ) {
$total = 0;
}
$details[ $key ] = array(
'name' => get_the_title( $item['id'] ),
'id' => $item['id'],
'item_number' => $item,
'item_price' => round( $item_price, edd_currency_decimal_filter() ),
'quantity' => $quantity,
'discount' => round( $discount, edd_currency_decimal_filter() ),
'subtotal' => round( $subtotal, edd_currency_decimal_filter() ),
'tax' => round( $tax, edd_currency_decimal_filter() ),
'fees' => $fees,
'price' => round( $total, edd_currency_decimal_filter() )
);
if ( $edd_is_last_cart_item ) {
$edd_is_last_cart_item = false;
$edd_flat_discount_total = 0.00;
}
}
$this->details = $details;
return $this->details;
}
/**
* Get Discounts.
*
* @since 2.7
* @return array $discounts The active discount codes
*/
public function get_discounts() {
$this->get_discounts_from_session();
$this->discounts = ! empty( $this->discounts ) ? explode( '|', $this->discounts ) : array();
return $this->discounts;
}
/**
* Update Cart
*
* @since 2.7
* @return void
*/
public function update_cart() {
EDD()->session->set( 'edd_cart', $this->contents );
}
/**
* Checks if any discounts have been applied to the cart
*
* @since 2.7
* @return bool
*/
public function has_discounts() {
if ( null !== $this->has_discounts ) {
return $this->has_discounts;
}
$has_discounts = false;
$discounts = $this->get_discounts();
if ( ! empty( $discounts ) ) {
$has_discounts = true;
}
$this->has_discounts = apply_filters( 'edd_cart_has_discounts', $has_discounts );
return $this->has_discounts;
}
/**
* Get quantity
*
* @since 2.7
* @return int
*/
public function get_quantity() {
$total_quantity = 0;
$contents = $this->get_contents();
if ( ! empty( $contents ) ) {
$quantities = wp_list_pluck( $this->contents, 'quantity' );
$total_quantity = absint( array_sum( $quantities ) );
}
$this->quantity = apply_filters( 'edd_get_cart_quantity', $total_quantity, $this->contents );
return $this->quantity;
}
/**
* Checks if the cart is empty
*
* @since 2.7
* @return boolean
*/
public function is_empty() {
return 0 === count( (array) $this->get_contents() );
}
/**
* Add to cart
*
* As of EDD 2.7, items can only be added to the cart when the object passed extends EDD_Cart_Item
*
* @since 2.7
* @return array $cart Updated cart object
*/
public function add( $download_id, $options = array() ) {
$download = new EDD_Download( $download_id );
if ( empty( $download->ID ) ) {
return; // Not a download product
}
if ( ! $download->can_purchase() ) {
return; // Do not allow draft/pending to be purchased if can't edit. Fixes #1056
}
do_action( 'edd_pre_add_to_cart', $download_id, $options );
/**
* Pre-Add to Cart Contents.
*
* Prior to adding the new item to the cart, allow filtering of the current contents
*
* @since
* @since 3.0 Added the additional $download_id and $options arguments.
*
* @param array The current cart contents.
* @param int The download ID being added to the cart.
* @param array The options for the item being added including but not limited to quantity.
*/
$this->contents = apply_filters( 'edd_pre_add_to_cart_contents', $this->contents, $download_id, $options );
$quantities_enabled = edd_item_quantities_enabled() && ! edd_download_quantities_disabled( $download_id );
if ( $download->has_variable_prices() && ! isset( $options['price_id'] ) ) {
// Forces to the default price ID if none is specified and download has variable prices
$options['price_id'] = get_post_meta( $download->ID, '_edd_default_price_id', true );
}
if ( isset( $options['quantity'] ) ) {
if ( is_array( $options['quantity'] ) ) {
$quantity = array();
foreach ( $options['quantity'] as $q ) {
$quantity[] = $quantities_enabled ? absint( preg_replace( '/[^0-9\.]/', '', $q ) ) : 1;
}
} else {
$quantity = $quantities_enabled ? absint( preg_replace( '/[^0-9\.]/', '', $options['quantity'] ) ) : 1;
}
unset( $options['quantity'] );
} else {
$quantity = 1;
}
// If the price IDs are a string and is a coma separated list, make it an array (allows custom add to cart URLs)
if ( isset( $options['price_id'] ) && ! is_array( $options['price_id'] ) && false !== strpos( $options['price_id'], ',' ) ) {
$options['price_id'] = explode( ',', $options['price_id'] );
}
$items = array();
if ( isset( $options['price_id'] ) && is_array( $options['price_id'] ) ) {
// Process multiple price options at once
foreach ( $options['price_id'] as $key => $price ) {
$items[] = array(
'id' => $download_id,
'options' => array(
'price_id' => preg_replace( '/[^0-9\.-]/', '', $price )
),
'quantity' => is_array( $quantity ) && isset( $quantity[ $key ] ) ? $quantity[ $key ] : $quantity,
);
}
} else {
// Sanitize price IDs
foreach( $options as $key => $option ) {
if ( 'price_id' == $key ) {
$options[ $key ] = preg_replace( '/[^0-9\.-]/', '', $option );
}
}
// Add a single item
$items[] = array(
'id' => $download_id,
'options' => $options,
'quantity' => $quantity
);
}
foreach ( $items as &$item ) {
$item = apply_filters( 'edd_add_to_cart_item', $item );
$to_add = $item;
if ( ! is_array( $to_add ) ) {
return;
}
if ( ! isset( $to_add['id'] ) || empty( $to_add['id'] ) ) {
return;
}
if ( edd_item_in_cart( $to_add['id'], $to_add['options'] ) && edd_item_quantities_enabled() ) {
$key = edd_get_item_position_in_cart( $to_add['id'], $to_add['options'] );
if ( is_array( $quantity ) ) {
$this->contents[ $key ]['quantity'] += $quantity[ $key ];
} else {
$this->contents[ $key ]['quantity'] += $quantity;
}
} else {
$this->contents[] = $to_add;
}
}
unset( $item );
$this->update_cart();
do_action( 'edd_post_add_to_cart', $download_id, $options, $items );
// Clear all the checkout errors, if any
edd_clear_errors();
return count( $this->contents ) - 1;
}
/**
* Remove from cart
*
* @since 2.7
*
* @param int $key Cart key to remove. This key is the numerical index of the item contained within the cart array.
* @return array Updated cart contents
*/
public function remove( $key ) {
$cart = $this->get_contents();
do_action( 'edd_pre_remove_from_cart', $key );
if ( ! is_array( $cart ) ) {
return true; // Empty cart
} else {
$item_id = isset( $cart[ $key ]['id'] ) ? $cart[ $key ]['id'] : null;
unset( $cart[ $key ] );
}
$this->contents = $cart;
$this->update_cart();
do_action( 'edd_post_remove_from_cart', $key, $item_id );
edd_clear_errors();
return $this->contents;
}
/**
* Generate the URL to remove an item from the cart.
*
* @since 2.7
*
* @param int $cart_key Cart item key
* @return string $remove_url URL to remove the cart item
*/
public function remove_item_url( $cart_key ) {
$current_page = edd_doing_ajax()
? edd_get_checkout_uri()
: edd_get_current_page_url();
$remove_url = edd_add_cache_busting( add_query_arg( array(
'cart_item' => urlencode( $cart_key ),
'edd_action' => 'remove',
), $current_page ) );
return apply_filters( 'edd_remove_item_url', $remove_url );
}
/**
* Generate the URL to remove a fee from the cart.
*
* @since 2.7
*
* @param int $fee_id Fee ID.
* @return string $remove_url URL to remove the cart item
*/
public function remove_fee_url( $fee_id = '' ) {
$current_page = edd_doing_ajax()
? edd_get_checkout_uri()
: edd_get_current_page_url();
$remove_url = add_query_arg( array(
'fee' => urlencode( $fee_id ),
'edd_action' => 'remove_fee',
'nocache' => 'true'
), $current_page );
return apply_filters( 'edd_remove_fee_url', $remove_url );
}
/**
* Empty the cart
*
* @since 2.7
* @return void
*/
public function empty_cart() {
// Remove cart contents.
EDD()->session->set( 'edd_cart', NULL );
// Remove all cart fees.
EDD()->session->set( 'edd_cart_fees', NULL );
// Remove any resuming payments.
EDD()->session->set( 'edd_resume_payment', NULL );
// Remove any active discounts
$this->remove_all_discounts();
$this->contents = array();
do_action( 'edd_empty_cart' );
}
/**
* Remove discount from the cart
*
* @since 2.7
* @return array Discount codes
*/
public function remove_discount( $code = '' ) {
if ( empty( $code ) ) {
return;
}
if ( $this->discounts ) {
$key = array_search( $code, $this->discounts );
if ( false !== $key ) {
unset( $this->discounts[ $key ] );
}
$this->discounts = implode( '|', array_values( $this->discounts ) );
// update the active discounts
EDD()->session->set( 'cart_discounts', $this->discounts );
}
do_action( 'edd_cart_discount_removed', $code, $this->discounts );
do_action( 'edd_cart_discounts_updated', $this->discounts );
return $this->discounts;
}
/**
* Remove all discount codes
*
* @since 2.7
* @return void
*/
public function remove_all_discounts() {
EDD()->session->set( 'cart_discounts', null );
do_action( 'edd_cart_discounts_removed' );
}
/**
* Get the discounted amount on a price
*
* @since 2.7
* @since 3.0 Use `edd_get_item_discount_amount()` for calculations.
*
* @param array $item Cart item.
* @param bool|string $discount False to use the cart discounts or a string to check with a discount code.
* @return float The discounted amount
*/
public function get_item_discount_amount( $item = array(), $discount = false ) {
// Validate item.
if ( empty( $item ) || empty( $item['id'] ) ) {
return 0;
}
if ( ! isset( $item['quantity'] ) ) {
return 0;
}
if ( ! isset( $item['options'] ) ) {
$item['options'] = array();
/*
* Support for variable pricing when calling `edd_get_cart_item_discount_amount()`
* @link https://github.com/easydigitaldownloads/easy-digital-downloads/issues/8246
*/
if ( isset( $item['item_number']['options'] ) ) {
$item['options'] = $item['item_number']['options'];
}
}
$discounts = false === $discount
? $this->get_discounts()
: array( $discount );
$item_price = $this->get_item_price( $item['id'], $item['options'] );
$discount_amount = edd_get_item_discount_amount( $item, $this->get_contents(), $discounts, $item_price );
$discounted_amount = ( $item_price - $discount_amount );
/**
* Filters the amount to be discounted from the original cart item amount.
*
* @since unknown
*
* @param float $discounted_amount Amount to be discounted from the cart item amount.
* @param string[] $discounts Discount codes applied to the Cart.
* @param array $item Cart item.
* @param float $item_price Cart item price.
*/
$discounted_amount = apply_filters(
'edd_get_cart_item_discounted_amount',
$discounted_amount,
$discounts,
$item,
$item_price
);
// Recalculate using the legacy filter discounted amount.
$discount_amount = round( ( $item_price - $discounted_amount ), edd_currency_decimal_filter() );
return $discount_amount;
}
/**
* Shows the fully formatted cart discount
*
* @since 2.7
*
* @param bool $echo Echo?
* @return string $amount Fully formatted cart discount
*/
public function display_cart_discount( $echo = false ) {
$discounts = $this->get_discounts();
if ( empty( $discounts ) ) {
return false;
}
$discount_id = edd_get_discount_id_by_code( $discounts[0] );
$amount = edd_format_discount_rate( edd_get_discount_type( $discount_id ), edd_get_discount_amount( $discount_id ) );
if ( $echo ) {
echo esc_html( $amount );
}
return $amount;
}
/**
* Checks to see if an item is in the cart.
*
* @since 2.7
*
* @param int $download_id Download ID of the item to check.
* @param array $options
* @return bool
*/
public function is_item_in_cart( $download_id = 0, $options = array() ) {
$cart = $this->get_contents();
$ret = false;
if ( is_array( $cart ) ) {
foreach ( $cart as $item ) {
if ( $item['id'] == $download_id ) {
if ( isset( $options['price_id'] ) && isset( $item['options']['price_id'] ) ) {
if ( $options['price_id'] == $item['options']['price_id'] ) {
$ret = true;
break;
}
} else {
$ret = true;
break;
}
}
}
}
return (bool) apply_filters( 'edd_item_in_cart', $ret, $download_id, $options );
}
/**
* Get the position of an item in the cart
*
* @since 2.7
*
* @param int $download_id Download ID of the item to check.
* @param array $options
* @return mixed int|false
*/
public function get_item_position( $download_id = 0, $options = array() ) {
$cart = $this->get_contents();
if ( ! is_array( $cart ) ) {
return false;
} else {
foreach ( $cart as $position => $item ) {
if ( $item['id'] == $download_id ) {
if ( isset( $options['price_id'] ) && isset( $item['options']['price_id'] ) ) {
if ( (int) $options['price_id'] == (int) $item['options']['price_id'] ) {
return $position;
}
} else {
return $position;
}
}
}
}
return false;
}
/**
* Get the quantity of an item in the cart.
*
* @since 2.7
*
* @param int $download_id Download ID of the item
* @param array $options
* @return int Numerical index of the position of the item in the cart
*/
public function get_item_quantity( $download_id = 0, $options = array() ) {
$key = $this->get_item_position( $download_id, $options );
$quantity = isset( $this->contents[ $key ]['quantity'] ) && edd_item_quantities_enabled() ? $this->contents[ $key ]['quantity'] : 1;
if ( $quantity < 1 ) {
$quantity = 1;
}
return absint( apply_filters( 'edd_get_cart_item_quantity', $quantity, $download_id, $options ) );
}
/**
* Set the quantity of an item in the cart.
*
* @since 2.7
*
* @param int $download_id Download ID of the item
* @param int $quantity Updated quantity of the item
* @param array $options
* @return array $contents Updated cart object.
*/
public function set_item_quantity( $download_id = 0, $quantity = 1, $options = array() ) {
$key = $this->get_item_position( $download_id, $options );
if ( false === $key ) {
return $this->contents;
}
if ( $quantity < 1 ) {
$quantity = 1;
}
$this->contents[ $key ]['quantity'] = $quantity;
$this->update_cart();
do_action( 'edd_after_set_cart_item_quantity', $download_id, $quantity, $options, $this->contents );
return $this->contents;
}
/**
* Cart Item Price.
*
* @since 2.7
*
* @param int $item_id Download (cart item) ID number
* @param array $options Optional parameters, used for defining variable prices
* @return string Fully formatted price
*/
public function item_price( $item_id = 0, $options = array() ) {
$price = $this->get_item_price( $item_id, $options );
$label = '';
$price_id = isset( $options['price_id'] ) ? $options['price_id'] : false;
if ( ! edd_is_free_download( $item_id, $price_id ) && ! edd_download_is_tax_exclusive( $item_id ) ) {
if ( edd_prices_show_tax_on_checkout() && ! edd_prices_include_tax() ) {
$price += edd_get_cart_item_tax( $item_id, $options, $price );
}
if ( ! edd_prices_show_tax_on_checkout() && edd_prices_include_tax() ) {
$price -= edd_get_cart_item_tax( $item_id, $options, $price );
}
if ( edd_display_tax_rate() ) {
$label = '&nbsp;&ndash;&nbsp;';
if ( edd_prices_show_tax_on_checkout() ) {
$label .= sprintf( __( 'includes %s tax', 'easy-digital-downloads' ), edd_get_formatted_tax_rate() );
} else {
$label .= sprintf( __( 'excludes %s tax', 'easy-digital-downloads' ), edd_get_formatted_tax_rate() );
}
$label = apply_filters( 'edd_cart_item_tax_description', $label, $item_id, $options );
}
}
$price = edd_currency_filter( edd_format_amount( $price ) );
return apply_filters( 'edd_cart_item_price_label', $price . $label, $item_id, $options );
}
/**
* Gets the price of the cart item. Always exclusive of taxes.
*
* Do not use this for getting the final price (with taxes and discounts) of an item.
* Use edd_get_cart_item_final_price()
*
* @since 2.7
*
* @param int $download_id Download ID for the cart item
* @param array $options Optional parameters, used for defining variable prices
* @param bool $remove_tax_from_inclusive Remove the tax amount from tax inclusive priced products.
* @return float|bool Price for this item
*/
public function get_item_price( $download_id = 0, $options = array(), $remove_tax_from_inclusive = false ) {
$price = 0;
$variable_prices = edd_has_variable_prices( $download_id );
if ( $variable_prices ) {
$prices = edd_get_variable_prices( $download_id );
if ( $prices ) {
if ( ! empty( $options ) ) {
$price = isset( $prices[ $options['price_id'] ] ) ? $prices[ $options['price_id'] ]['amount'] : false;
} else {
$price = false;
}
}
}
if ( ! $variable_prices || false === $price ) {
// Get the standard Download price if not using variable prices
$price = edd_get_download_price( $download_id );
}
if ( $remove_tax_from_inclusive && edd_prices_include_tax() ) {
$price -= $this->get_item_tax( $download_id, $options, $price );
}
return apply_filters( 'edd_cart_item_price', $price, $download_id, $options );
}
/**
* Final Price of Item in Cart (incl. discounts and taxes)
*
* @since 2.7
*
* @param int $item_key Cart item key
* @return float Final price for the item
*/
public function get_item_final_price( $item_key = 0 ) {
$final_price = $this->details[ $item_key ]['price'];
return apply_filters( 'edd_cart_item_final_price', $final_price, $item_key );
}
/**
* Calculate the tax for an item in the cart.
*
* @since 2.7
*
* @param array $download_id Download ID
* @param array $options Cart item options
* @param float $subtotal Cart item subtotal
* @return float Tax amount
*/
public function get_item_tax( $download_id = 0, $options = array(), $subtotal = '' ) {
$tax = 0;
if ( ! edd_download_is_tax_exclusive( $download_id ) ) {
$country = ! empty( $_POST['billing_country'] ) ? $_POST['billing_country'] : false;
$state = ! empty( $_POST['card_state'] ) ? $_POST['card_state'] : false;
$tax = edd_calculate_tax( $subtotal, $country, $state, true, $this->get_tax_rate() );
}
$tax = max( $tax, 0 );
return apply_filters( 'edd_get_cart_item_tax', $tax, $download_id, $options, $subtotal );
}
/**
* Get Cart Fees
*
* @since 2.7
* @return array Cart fees
*/
public function get_fees( $type = 'all', $download_id = 0, $price_id = null ) {
return EDD()->fees->get_fees( $type, $download_id, $price_id );
}
/**
* Get All Cart Fees.
*
* @since 2.7
* @return array
*/
public function get_all_fees() {
$this->fees = EDD()->fees->get_fees( 'all' );
return $this->fees;
}
/**
* Get Cart Items Subtotal.
*
* @since 2.7
*
* @param array $items Cart items array
* @return float items subtotal
*/
public function get_items_subtotal( $items ) {
$subtotal = 0.00;
if ( is_array( $items ) && ! empty( $items ) ) {
$prices = wp_list_pluck( $items, 'subtotal' );
if ( is_array( $prices ) ) {
$subtotal = array_sum( $prices );
} else {
$subtotal = 0.00;
}
if ( $subtotal < 0 ) {
$subtotal = 0.00;
}
}
$this->subtotal = apply_filters( 'edd_get_cart_items_subtotal', $subtotal );
return $this->subtotal;
}
/**
* Get Discountable Subtotal.
*
* @since 2.7
* @return float Total discountable amount before taxes
*/
public function get_discountable_subtotal( $code_id ) {
$cart_items = $this->get_contents_details();
$items = array();
$excluded_products = edd_get_discount_excluded_products( $code_id );
if ( $cart_items ) {
foreach( $cart_items as $item ) {
if ( ! in_array( $item['id'], $excluded_products ) ) {
$items[] = $item;
}
}
}
$subtotal = $this->get_items_subtotal( $items );
return apply_filters( 'edd_get_cart_discountable_subtotal', $subtotal );
}
/**
* Get Discounted Amount.
*
* @since 2.7
*
* @param bool $discounts Discount codes
* @return float|mixed|void Total discounted amount
*/
public function get_discounted_amount( $discounts = false ) {
$amount = 0.00;
$items = $this->get_contents_details();
if ( $items ) {
$discounts = wp_list_pluck( $items, 'discount' );
if ( is_array( $discounts ) ) {
$discounts = array_map( 'floatval', $discounts );
$amount = array_sum( $discounts );
}
}
return apply_filters( 'edd_get_cart_discounted_amount', $amount );
}
/**
* Get Cart Subtotal.
*
* Gets the total price amount in the cart before taxes and before any discounts.
*
* @since 2.7
*
* @return float Total amount before taxes
*/
public function get_subtotal() {
$items = $this->get_contents_details();
$subtotal = $this->get_items_subtotal( $items );
return apply_filters( 'edd_get_cart_subtotal', $subtotal );
}
/**
* Subtotal (before taxes).
*
* @since 2.7
* @return float Total amount before taxes fully formatted
*/
public function subtotal() {
return esc_html( edd_currency_filter( edd_format_amount( edd_get_cart_subtotal() ) ) );
}
/**
* Get Total Cart Amount.
*
* @since 2.7
*
* @param bool $discounts Array of discounts to apply (needed during AJAX calls)
* @return float Cart amount
*/
public function get_total( $discounts = false ) {
$subtotal = (float) $this->get_subtotal();
$discounts = (float) $this->get_discounted_amount();
$fees = (float) $this->get_total_fees();
$cart_tax = (float) $this->get_tax();
$total_wo_tax = $subtotal - $discounts + $fees;
$total = $subtotal - $discounts + $cart_tax + $fees;
if ( $total < 0 || ! $total_wo_tax > 0 ) {
$total = 0.00;
}
$this->total = (float) apply_filters( 'edd_get_cart_total', $total );
return $this->total;
}
/**
* Fully Formatted Total Cart Amount.
*
* @since 2.7
*
* @param bool $echo
* @return mixed|string|void
*/
public function total( $echo = false ) {
$total = apply_filters( 'edd_cart_total', edd_currency_filter( edd_format_amount( $this->get_total() ) ) );
if ( $echo ) {
echo esc_html( $total );
}
return $total;
}
/**
* Get Cart Fee Total
*
* @since 2.7
* @return double
*/
public function get_total_fees() {
$fee_total = 0.00;
foreach ( $this->get_fees() as $fee ) {
// Since fees affect cart item totals, we need to not count them towards the cart total if there is an association.
if ( ! empty( $fee['download_id'] ) ) {
continue;
}
$fee_total += $fee['amount'];
}
return apply_filters( 'edd_get_fee_total', $fee_total, $this->fees );
}
/**
* Get the price ID for an item in the cart.
*
* @since 2.7
*
* @param array $item Item details
* @return string $price_id Price ID
*/
public function get_item_price_id( $item = array() ) {
if ( isset( $item['item_number'] ) ) {
$price_id = isset( $item['item_number']['options']['price_id'] ) ? $item['item_number']['options']['price_id'] : null;
} else {
$price_id = isset( $item['options']['price_id'] ) ? $item['options']['price_id'] : null;
}
return $price_id;
}
/**
* Get the price name for an item in the cart.
*
* @since 2.7
*
* @param array $item Item details
* @return string $name Price name
*/
public function get_item_price_name( $item = array() ) {
$price_id = (int) $this->get_item_price_id( $item );
$prices = edd_get_variable_prices( $item['id'] );
$name = ! empty( $prices[ $price_id ] ) ? $prices[ $price_id ]['name'] : '';
return apply_filters( 'edd_get_cart_item_price_name', $name, $item['id'], $price_id, $item );
}
/**
* Get the name of an item in the cart.
*
* @since 2.7
*
* @param array $item Item details
* @return string $name Item name
*/
public function get_item_name( $item = array() ) {
$item_title = get_the_title( $item['id'] );
if ( empty( $item_title ) ) {
$item_title = $item['id'];
}
if ( edd_has_variable_prices( $item['id'] ) && false !== edd_get_cart_item_price_id( $item ) ) {
$item_title .= ' - ' . edd_get_cart_item_price_name( $item );
}
return apply_filters( 'edd_get_cart_item_name', $item_title, $item['id'], $item );
}
/**
* Get all applicable tax for the items in the cart
*
* @since 2.7
* @return float Total tax amount
*/
public function get_tax() {
$cart_tax = 0;
$items = $this->get_contents_details();
if ( $items ) {
$taxes = wp_list_pluck( $items, 'tax' );
if ( is_array( $taxes ) ) {
$cart_tax = array_sum( $taxes );
}
}
$cart_tax += $this->get_tax_on_fees();
$subtotal = $this->get_subtotal();
if ( empty( $subtotal ) ) {
$cart_tax = 0;
}
$cart_tax = apply_filters( 'edd_get_cart_tax', edd_sanitize_amount( $cart_tax ) );
return $cart_tax;
}
/**
* Gets the total tax amount for the cart contents in a fully formatted way
*
* @since 2.7
*
* @param boolean $echo Decides if the result should be returned or not
* @return string Total tax amount
*/
public function tax( $echo = false ) {
$cart_tax = $this->get_tax();
$cart_tax = edd_currency_filter( edd_format_amount( $cart_tax ) );
$tax = max( $cart_tax, 0 );
$tax = apply_filters( 'edd_cart_tax', $cart_tax );
if ( $echo ) {
echo esc_html( $tax );
}
return $tax;
}
/**
* Get tax applicable for fees.
*
* @since 2.7
* @return float Total taxable amount for fees
*/
public function get_tax_on_fees() {
$tax = 0;
$fees = edd_get_cart_fees();
if ( $fees ) {
foreach ( $fees as $fee_id => $fee ) {
if ( ! empty( $fee['no_tax'] ) || $fee['amount'] < 0 ) {
continue;
}
/**
* Fees (at this time) must be exclusive of tax
*/
add_filter( 'edd_prices_include_tax', '__return_false' );
$tax += edd_calculate_tax( $fee['amount'], '', '', true, $this->get_tax_rate() );
remove_filter( 'edd_prices_include_tax', '__return_false' );
}
}
return apply_filters( 'edd_get_cart_fee_tax', $tax );
}
/**
* Is Cart Saving Enabled?
*
* @since 2.7
* @return bool
*/
public function is_saving_enabled() {
return edd_get_option( 'enable_cart_saving', false );
}
/**
* Checks if the cart has been saved
*
* @since 2.7
* @return bool
*/
public function is_saved() {
if ( ! $this->is_saving_enabled() ) {
return false;
}
$saved_cart = get_user_meta( get_current_user_id(), 'edd_saved_cart', true );
if ( is_user_logged_in() ) {
if ( ! $saved_cart ) {
return false;
}
if ( $saved_cart === EDD()->session->get( 'edd_cart' ) ) {
return false;
}
return true;
} else {
if ( ! isset( $_COOKIE['edd_saved_cart'] ) ) {
return false;
}
if ( json_decode( stripslashes( $_COOKIE['edd_saved_cart'] ), true ) === EDD()->session->get( 'edd_cart' ) ) {
return false;
}
return true;
}
}
/**
* Save Cart
*
* @since 2.7
* @return bool
*/
public function save() {
// Bail if carts cannot be saved
if ( ! $this->is_saving_enabled() ) {
return false;
}
// Get cart & cart token
$cart = EDD()->session->get( 'edd_cart' );
$token = edd_generate_cart_token();
if ( is_user_logged_in() ) {
$user_id = get_current_user_id();
update_user_meta( $user_id, 'edd_saved_cart', $cart, false );
update_user_meta( $user_id, 'edd_cart_token', $token, false );
} else {
$cart = json_encode( $cart );
$expires = time() + WEEK_IN_SECONDS;
@setcookie( 'edd_saved_cart', $cart, $expires, COOKIEPATH, COOKIE_DOMAIN );
@setcookie( 'edd_cart_token', $token, $expires, COOKIEPATH, COOKIE_DOMAIN );
}
// Get all cart messages
$messages = EDD()->session->get( 'edd_cart_messages' );
// Make sure it's an array, if empty
if ( empty( $messages ) ) {
$messages = array();
}
$checkout_url = add_query_arg(
array(
'edd_action' => 'restore_cart',
'edd_cart_token' => sanitize_key( $token ),
),
edd_get_checkout_uri()
);
// Add the success message
$messages['edd_cart_save_successful'] = sprintf(
'<strong>%1$s</strong>: %2$s <a href="%3$s">%3$s</a>',
__( 'Success', 'easy-digital-downloads' ),
__( 'Cart saved successfully. You can restore your cart using this URL:', 'easy-digital-downloads' ),
esc_url( edd_get_checkout_uri() . '?edd_action=restore_cart&edd_cart_token=' . urlencode( $token ) )
);
// Set these messages in the session
EDD()->session->set( 'edd_cart_messages', $messages );
// Return if cart saved
return ! empty( $cart );
}
/**
* Restore Cart
*
* @since 2.7
* @return bool
*/
public function restore() {
if ( ! $this->is_saving_enabled() ) {
return false;
}
$user_id = get_current_user_id();
$saved_cart = get_user_meta( $user_id, 'edd_saved_cart', true );
$token = $this->get_token();
if ( is_user_logged_in() && $saved_cart ) {
$messages = EDD()->session->get( 'edd_cart_messages' );
if ( ! $messages ) {
$messages = array();
}
if ( isset( $_GET['edd_cart_token'] ) && ! hash_equals( $_GET['edd_cart_token'], $token ) ) {
$messages['edd_cart_restoration_failed'] = sprintf( '<strong>%1$s</strong>: %2$s', __( 'Error', 'easy-digital-downloads' ), __( 'Cart restoration failed. Invalid token.', 'easy-digital-downloads' ) );
EDD()->session->set( 'edd_cart_messages', $messages );
}
delete_user_meta( $user_id, 'edd_saved_cart' );
delete_user_meta( $user_id, 'edd_cart_token' );
if ( isset( $_GET['edd_cart_token'] ) && $_GET['edd_cart_token'] != $token ) {
return new WP_Error( 'invalid_cart_token', __( 'The cart cannot be restored. Invalid token.', 'easy-digital-downloads' ) );
}
} elseif ( ! is_user_logged_in() && isset( $_COOKIE['edd_saved_cart'] ) && $token ) {
$saved_cart = $_COOKIE['edd_saved_cart'];
if ( ! hash_equals( $_GET['edd_cart_token'], $token ) ) {
$messages['edd_cart_restoration_failed'] = sprintf( '<strong>%1$s</strong>: %2$s', __( 'Error', 'easy-digital-downloads' ), __( 'Cart restoration failed. Invalid token.', 'easy-digital-downloads' ) );
EDD()->session->set( 'edd_cart_messages', $messages );
return new WP_Error( 'invalid_cart_token', __( 'The cart cannot be restored. Invalid token.', 'easy-digital-downloads' ) );
}
$saved_cart = json_decode( stripslashes( $saved_cart ), true );
setcookie( 'edd_saved_cart', '', time()-3600, COOKIEPATH, COOKIE_DOMAIN );
setcookie( 'edd_cart_token', '', time()-3600, COOKIEPATH, COOKIE_DOMAIN );
}
$messages['edd_cart_restoration_successful'] = sprintf( '<strong>%1$s</strong>: %2$s', __( 'Success', 'easy-digital-downloads' ), __( 'Cart restored successfully.', 'easy-digital-downloads' ) );
EDD()->session->set( 'edd_cart', $saved_cart );
EDD()->session->set( 'edd_cart_messages', $messages );
// @e also have to set this instance to what the session is.
$this->contents = $saved_cart;
return true;
}
/**
* Retrieve a saved cart token. Used in validating saved carts
*
* @since 2.7
* @return int
*/
public function get_token() {
$user_id = get_current_user_id();
if ( is_user_logged_in() ) {
$token = get_user_meta( $user_id, 'edd_cart_token', true );
} else {
$token = isset( $_COOKIE['edd_cart_token'] ) ? $_COOKIE['edd_cart_token'] : false;
}
return apply_filters( 'edd_get_cart_token', $token, $user_id );
}
/**
* Generate URL token to restore the cart via a URL
*
* @since 2.7
* @return int
*/
public function generate_token() {
return apply_filters( 'edd_generate_cart_token', md5( mt_rand() . time() ) );
}
}