/**
* AJAX Validate Discount
*
* Validates the supplied discount.
*
* @access private
* @since 1.0
* @return string
*/
function edd_ajax_validate_discount()
{
if (isset($_POST['code']) && check_ajax_referer('edd_ajax_nonce', 'nonce')) {
$user = isset($_POST['user']) ? $_POST['user'] : $_POST['email'];
$return = array('msg' => '', 'code' => $_POST['code']);
if (edd_is_discount_used($_POST['code'], $user)) {
// Called twice if discount is not used (again by edd_is_discount_valid) but allows for beter usr msg and less execution if discount is used.
$return['msg'] = __('This discount code has been used already', 'edd');
} else {
if (edd_is_discount_valid($_POST['code'], $user)) {
$price = edd_get_cart_amount();
$discounted_price = edd_get_discounted_amount($_POST['code'], $price);
$return = array('msg' => 'valid', 'amount' => edd_currency_filter(edd_format_amount($discounted_price)), 'code' => $_POST['code']);
} else {
$return['msg'] = __('The discount you entered is invalid', 'edd');
}
}
echo json_encode($return);
}
die;
}
/**
* Discounts short code
*
* Displays a list of all active discounts
*
* @access public
* @since 1.0.8.2
* @return string
*/
function edd_discounts_shortcode($atts, $content = null)
{
$discounts = edd_get_discounts();
if (!$discounts && edd_has_active_discounts()) {
return;
}
$discounts_list = '<ul id="edd_discounts_list">';
foreach ($discounts as $discount) {
if (edd_is_discount_valid($discount['code'])) {
$discounts_list .= '<li class="edd_discount">';
$discounts_list .= '<span class="edd_discount_name">' . $discount['name'] . '</span>';
$discounts_list .= '<span class="edd_discount_separator"> - </span>';
$discounts_list .= '<span class="edd_discount_amount">' . edd_format_discount_rate($discount['type'], $discount['amount']) . '</span>';
$discounts_list .= '</li>';
}
}
$discounts_list .= '</ul>';
return $discounts_list;
}
/**
* Applies the preset discount, if any. This is separated from edd_listen_for_cart_discount() in order to allow items to be
* added to the cart and for it to persist across page loads if necessary
*
* @return void
*/
function edd_apply_preset_discount()
{
$code = sanitize_text_field(EDD()->session->get('preset_discount'));
if (!$code) {
return;
}
if (!edd_is_discount_valid($code, '', false)) {
return;
}
$code = apply_filters('edd_apply_preset_discount', $code);
edd_set_cart_discount($code);
EDD()->session->set('preset_discount', null);
}
/**
* Purchase Form Validate Discounts
*
* @access private
* @since 1.0.8.1
* @return string
*/
function edd_purchase_form_validate_discounts()
{
// Retrieve the discount stored in cookies
$discounts = edd_get_cart_discounts();
$user = '';
if (isset($_POST['edd_user_login']) && !empty($_POST['edd_user_login'])) {
$user = sanitize_text_field($_POST['edd_user_login']);
} else {
if (isset($_POST['edd_email']) && !empty($_POST['edd_email'])) {
$user = sanitize_text_field($_POST['edd_email']);
} else {
if (is_user_logged_in()) {
$user = wp_get_current_user()->user_email;
}
}
}
$error = false;
// Check for valid discount(s) is present
if (!empty($_POST['edd-discount']) && __('Enter discount', 'easy-digital-downloads') != $_POST['edd-discount']) {
// Check for a posted discount
$posted_discount = isset($_POST['edd-discount']) ? trim($_POST['edd-discount']) : false;
// Add the posted discount to the discounts
if ($posted_discount && (empty($discounts) || edd_multiple_discounts_allowed()) && edd_is_discount_valid($posted_discount, $user)) {
edd_set_cart_discount($posted_discount);
}
}
// If we have discounts, loop through them
if (!empty($discounts)) {
foreach ($discounts as $discount) {
// Check if valid
if (!edd_is_discount_valid($discount, $user)) {
// Discount is not valid
$error = true;
}
}
} else {
// No discounts
return 'none';
}
if ($error) {
edd_set_error('invalid_discount', __('One or more of the discounts you entered is invalid', 'easy-digital-downloads'));
}
return implode(', ', $discounts);
}
/**
* Validates the supplied discount sent via AJAX.
*
* @since 1.0
* @return void
*/
function edd_ajax_apply_discount()
{
if (isset($_POST['code'])) {
$discount_code = sanitize_text_field($_POST['code']);
$return = array('msg' => '', 'code' => $discount_code);
$user = '';
if (is_user_logged_in()) {
$user = get_current_user_id();
} else {
parse_str($_POST['form'], $form);
if (!empty($form['edd_email'])) {
$user = urldecode($form['edd_email']);
}
}
if (edd_is_discount_valid($discount_code, $user)) {
$discount = edd_get_discount_by_code($discount_code);
$amount = edd_format_discount_rate(edd_get_discount_type($discount->ID), edd_get_discount_amount($discount->ID));
$discounts = edd_set_cart_discount($discount_code);
$total = edd_get_cart_total($discounts);
$return = array('msg' => 'valid', 'amount' => $amount, 'total_plain' => $total, 'total' => html_entity_decode(edd_currency_filter(edd_format_amount($total)), ENT_COMPAT, 'UTF-8'), 'code' => $discount_code, 'html' => edd_get_cart_discounts_html($discounts));
} else {
$errors = edd_get_errors();
$return['msg'] = $errors['edd-discount-error'];
edd_unset_error('edd-discount-error');
}
// Allow for custom discount code handling
$return = apply_filters('edd_ajax_discount_response', $return);
echo json_encode($return);
}
edd_die();
}
/**
* Validates the supplied discount sent via AJAX.
*
* @since 1.0
* @return void
*/
function edd_ajax_apply_discount()
{
if (isset($_POST['code']) && check_ajax_referer('edd_checkout_nonce', 'nonce')) {
$user = isset($_POST['user']) ? $_POST['user'] : $_POST['email'];
$return = array('msg' => '', 'code' => $_POST['code']);
if (edd_is_discount_used($_POST['code'], $user)) {
// Called twice if discount is not used (again by edd_is_discount_valid) but allows for beter usr msg and less execution if discount is used.
$return['msg'] = __('This discount code has been used already', 'edd');
} else {
if (edd_is_discount_valid($_POST['code'], $user)) {
$discount = edd_get_discount_by_code($_POST['code']);
$amount = edd_format_discount_rate(edd_get_discount_type($discount->ID), edd_get_discount_amount($discount->ID));
$discounts = edd_set_cart_discount($_POST['code']);
$total = edd_get_cart_total($discounts);
$return = array('msg' => 'valid', 'amount' => $amount, 'total' => html_entity_decode(edd_currency_filter(edd_format_amount($total)), ENT_COMPAT, 'UTF-8'), 'code' => $_POST['code'], 'html' => edd_get_cart_discounts_html($discounts));
} else {
$return['msg'] = __('The discount you entered is invalid', 'edd');
}
}
echo json_encode($return);
}
edd_die();
}
/**
* Purchase Form Validate Discounts
*
* @access private
* @since 1.0.8.1
* @return string
*/
function edd_purchase_form_validate_discounts()
{
// check for valid discount is present
if (isset($_POST['edd-discount']) && trim($_POST['edd-discount']) != '') {
// clean discount
$discount = sanitize_text_field($_POST['edd-discount']);
$user = isset($_POST['edd_user_login']) ? sanitize_text_field($_POST['edd_user_login']) : sanitize_email($_POST['edd_email']);
// check if validates
if (edd_is_discount_valid($discount, $user)) {
// return clean discount
return $discount;
// invalid discount
} else {
// set invalid discount error
edd_set_error('invalid_discount', __('The discount you entered is invalid', 'edd'));
}
}
// return default value
return 'none';
}
/**
* Validates the supplied discount sent via AJAX.
*
* @since 1.0
* @return void
*/
function edd_ajax_apply_discount()
{
if (isset($_POST['code'])) {
$discount_code = $_POST['code'];
$return = array('msg' => '', 'code' => $discount_code);
if (edd_is_discount_valid($discount_code)) {
$discount = edd_get_discount_by_code($discount_code);
$amount = edd_format_discount_rate(edd_get_discount_type($discount->ID), edd_get_discount_amount($discount->ID));
$discounts = edd_set_cart_discount($discount_code);
$total = edd_get_cart_total($discounts);
$return = array('msg' => 'valid', 'amount' => $amount, 'total_plain' => $total, 'total' => html_entity_decode(edd_currency_filter(edd_format_amount($total)), ENT_COMPAT, 'UTF-8'), 'code' => $_POST['code'], 'html' => edd_get_cart_discounts_html($discounts));
} else {
$errors = edd_get_errors();
$return['msg'] = $errors['edd-discount-error'];
edd_unset_error('edd-discount-error');
}
// Allow for custom discount code handling
$return = apply_filters('edd_ajax_discount_response', $return);
echo json_encode($return);
}
edd_die();
}
/**
* Checks whether discounts are still valid when removing items from the cart
*
* If a discount requires a certain product, and that product is no longer in the cart, the discount is removed
*
* @since 1.5.2
* @return void
*/
function edd_maybe_remove_cart_discount($cart_key = 0)
{
$discounts = edd_get_cart_discounts();
if (!$discounts) {
return;
}
foreach ($discounts as $discount) {
if (!edd_is_discount_valid($discount)) {
edd_unset_cart_discount($discount);
}
}
}
/**
* Purchase Form Validate Discounts
*
* @access private
* @since 1.0.8.1
* @return string
*/
function edd_purchase_form_validate_discounts()
{
// Retrieve the discount stored in cookies
$discounts = edd_get_cart_discounts();
// Check for valid discount is present
if (!empty($_POST['edd-discount']) || $discounts !== false) {
if (empty($discounts)) {
$discount = sanitize_text_field($_POST['edd-discount']);
} else {
// Use the discount stored in the cookies
$discount = $discounts[0];
// Note: At some point this will support multiple discounts
}
$user = isset($_POST['edd_user_login']) ? sanitize_text_field($_POST['edd_user_login']) : sanitize_email($_POST['edd_email']);
// Check if validates
if (edd_is_discount_valid($discount, $user)) {
// Return clean discount
return $discount;
} else {
// Set invalid discount error
edd_set_error('invalid_discount', __('The discount you entered is invalid', 'edd'));
}
}
// Return default value
return 'none';
}