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<?php
/**
* WooCommerce API Coupons Class
*
* Handles requests to the /coupons endpoint
*
* @author WooThemes
* @category API
* @package WooCommerce/API
* @since 2.1
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
class WC_API_Coupons extends WC_API_Resource {
/** @var string $base the route base */
protected $base = '/coupons';
/**
* Register the routes for this class
*
* GET /coupons
* GET /coupons/count
* GET /coupons/<id>
*
* @since 2.1
* @param array $routes
* @return array
*/
public function register_routes( $routes ) {
# GET/POST /coupons
$routes[ $this->base ] = array(
array( array( $this, 'get_coupons' ), WC_API_Server::READABLE ),
array( array( $this, 'create_coupon' ), WC_API_Server::CREATABLE | WC_API_Server::ACCEPT_DATA ),
);
# GET /coupons/count
$routes[ $this->base . '/count'] = array(
array( array( $this, 'get_coupons_count' ), WC_API_Server::READABLE ),
);
# GET/PUT/DELETE /coupons/<id>
$routes[ $this->base . '/(?P<id>\d+)' ] = array(
array( array( $this, 'get_coupon' ), WC_API_Server::READABLE ),
array( array( $this, 'edit_coupon' ), WC_API_SERVER::EDITABLE | WC_API_SERVER::ACCEPT_DATA ),
array( array( $this, 'delete_coupon' ), WC_API_SERVER::DELETABLE ),
);
# GET /coupons/code/<code>, note that coupon codes can contain spaces, dashes and underscores
$routes[ $this->base . '/code/(?P<code>\w[\w\s\-]*)' ] = array(
array( array( $this, 'get_coupon_by_code' ), WC_API_Server::READABLE ),
);
return $routes;
}
/**
* Get all coupons
*
* @since 2.1
* @param string $fields
* @param array $filter
* @param int $page
* @return array
*/
public function get_coupons( $fields = null, $filter = array(), $page = 1 ) {
$filter['page'] = $page;
$query = $this->query_coupons( $filter );
$coupons = array();
foreach( $query->posts as $coupon_id ) {
if ( ! $this->is_readable( $coupon_id ) ) {
continue;
}
$coupons[] = current( $this->get_coupon( $coupon_id, $fields ) );
}
$this->server->add_pagination_headers( $query );
return array( 'coupons' => $coupons );
}
/**
* Get the coupon for the given ID
*
* @since 2.1
* @param int $id the coupon ID
* @param string $fields fields to include in response
* @return array|WP_Error
*/
public function get_coupon( $id, $fields = null ) {
global $wpdb;
$id = $this->validate_request( $id, 'shop_coupon', 'read' );
if ( is_wp_error( $id ) ) {
return $id;
}
// get the coupon code
$code = $wpdb->get_var( $wpdb->prepare( "SELECT post_title FROM $wpdb->posts WHERE id = %s AND post_type = 'shop_coupon' AND post_status = 'publish'", $id ) );
if ( is_null( $code ) ) {
return new WP_Error( 'woocommerce_api_invalid_coupon_id', __( 'Invalid coupon ID', 'woocommerce' ), array( 'status' => 404 ) );
}
$coupon = new WC_Coupon( $code );
$coupon_post = get_post( $coupon->id );
$coupon_data = array(
'id' => $coupon->id,
'code' => $coupon->code,
'type' => $coupon->type,
'created_at' => $this->server->format_datetime( $coupon_post->post_date_gmt ),
'updated_at' => $this->server->format_datetime( $coupon_post->post_modified_gmt ),
'amount' => wc_format_decimal( $coupon->amount, 2 ),
'individual_use' => ( 'yes' === $coupon->individual_use ),
'product_ids' => array_map( 'absint', (array) $coupon->product_ids ),
'exclude_product_ids' => array_map( 'absint', (array) $coupon->exclude_product_ids ),
'usage_limit' => ( ! empty( $coupon->usage_limit ) ) ? $coupon->usage_limit : null,
'usage_limit_per_user' => ( ! empty( $coupon->usage_limit_per_user ) ) ? $coupon->usage_limit_per_user : null,
'limit_usage_to_x_items' => (int) $coupon->limit_usage_to_x_items,
'usage_count' => (int) $coupon->usage_count,
'expiry_date' => ( ! empty( $coupon->expiry_date ) ) ? $this->server->format_datetime( $coupon->expiry_date ) : null,
'apply_before_tax' => $coupon->apply_before_tax(),
'enable_free_shipping' => $coupon->enable_free_shipping(),
'product_category_ids' => array_map( 'absint', (array) $coupon->product_categories ),
'exclude_product_category_ids' => array_map( 'absint', (array) $coupon->exclude_product_categories ),
'exclude_sale_items' => $coupon->exclude_sale_items(),
'minimum_amount' => wc_format_decimal( $coupon->minimum_amount, 2 ),
'maximum_amount' => wc_format_decimal( $coupon->maximum_amount, 2 ),
'customer_emails' => $coupon->customer_email,
'description' => $coupon_post->post_excerpt,
);
return array( 'coupon' => apply_filters( 'woocommerce_api_coupon_response', $coupon_data, $coupon, $fields, $this->server ) );
}
/**
* Get the total number of coupons
*
* @since 2.1
* @param array $filter
* @return array
*/
public function get_coupons_count( $filter = array() ) {
$query = $this->query_coupons( $filter );
if ( ! current_user_can( 'read_private_shop_coupons' ) ) {
return new WP_Error( 'woocommerce_api_user_cannot_read_coupons_count', __( 'You do not have permission to read the coupons count', 'woocommerce' ), array( 'status' => 401 ) );
}
return array( 'count' => (int) $query->found_posts );
}
/**
* Get the coupon for the given code
*
* @since 2.1
* @param string $code the coupon code
* @param string $fields fields to include in response
* @return int|WP_Error
*/
public function get_coupon_by_code( $code, $fields = null ) {
global $wpdb;
$id = $wpdb->get_var( $wpdb->prepare( "SELECT id FROM $wpdb->posts WHERE post_title = %s AND post_type = 'shop_coupon' AND post_status = 'publish'", $code ) );
if ( is_null( $id ) ) {
return new WP_Error( 'woocommerce_api_invalid_coupon_code', __( 'Invalid coupon code', 'woocommerce' ), array( 'status' => 404 ) );
}
return $this->get_coupon( $id, $fields );
}
/**
* Create a coupon
*
* @since 2.2
* @param array $data
* @return array
*/
public function create_coupon( $data ) {
global $wpdb;
$data = isset( $data['coupon'] ) ? $data['coupon'] : array();
// Check user permission
if ( ! current_user_can( 'publish_shop_coupons' ) ) {
return new WP_Error( 'woocommerce_api_user_cannot_create_coupon', __( 'You do not have permission to create coupons', 'woocommerce' ), array( 'status' => 401 ) );
}
$data = apply_filters( 'woocommerce_api_create_coupon_data', $data, $this );
// Check if coupon code is specified
if ( ! isset( $data['code'] ) ) {
return new WP_Error( 'woocommerce_api_missing_coupon_code', sprintf( __( 'Missing parameter %s', 'woocommerce' ), 'code' ), array( 'status' => 400 ) );
}
$coupon_code = apply_filters( 'woocommerce_coupon_code', $data['code'] );
// Check for duplicate coupon codes
$coupon_found = $wpdb->get_var( $wpdb->prepare( "
SELECT $wpdb->posts.ID
FROM $wpdb->posts
WHERE $wpdb->posts.post_type = 'shop_coupon'
AND $wpdb->posts.post_status = 'publish'
AND $wpdb->posts.post_title = '%s'
", $coupon_code ) );
if ( $coupon_found ) {
return new WP_Error( 'woocommerce_api_coupon_code_already_exists', __( 'The coupon code already exists', 'woocommerce' ), array( 'status' => 400 ) );
}
$defaults = array(
'type' => 'fixed_cart',
'amount' => 0,
'individual_use' => 'no',
'product_ids' => array(),
'exclude_product_ids' => array(),
'usage_limit' => '',
'usage_limit_per_user' => '',
'limit_usage_to_x_items' => '',
'usage_count' => '',
'expiry_date' => '',
'apply_before_tax' => 'yes',
'free_shipping' => 'no',
'product_categories' => array(),
'exclude_product_categories' => array(),
'exclude_sale_items' => 'no',
'minimum_amount' => '',
'maximum_amount' => '',
'customer_email' => array(),
);
$coupon_data = wp_parse_args( $data, $defaults );
// Validate coupon types
if ( ! in_array( wc_clean( $data['type'] ), array_keys( wc_get_coupon_types() ) ) ) {
return new WP_Error( 'woocommerce_api_invalid_coupon_type', sprintf( __( 'Invalid coupon type - the coupon type must be any of these: %s', 'woocommerce' ), implode( ', ', array_keys( wc_get_coupon_types() ) ) ), array( 'status' => 400 ) );
}
$new_coupon = array(
'post_title' => $coupon_code,
'post_content' => '',
'post_status' => 'publish',
'post_author' => get_current_user_id(),
'post_type' => 'shop_coupon',
'post_excerpt' => isset( $data['description'] ) ? $data['description'] : '',
);
$id = wp_insert_post( $new_coupon, $wp_error = false );
if ( is_wp_error( $id ) ) {
return new WP_Error( 'woocommerce_api_cannot_create_coupon', $id->get_error_message(), array( 'status' => 400 ) );
}
// set coupon meta
update_post_meta( $id, 'discount_type', $coupon_data['type'] );
update_post_meta( $id, 'coupon_amount', wc_format_decimal( $coupon_data['amount'] ) );
update_post_meta( $id, 'individual_use', $coupon_data['individual_use'] );
update_post_meta( $id, 'product_ids', implode( ',', array_filter( array_map( 'intval', $coupon_data['product_ids'] ) ) ) );
update_post_meta( $id, 'exclude_product_ids', implode( ',', array_filter( array_map( 'intval', $coupon_data['exclude_product_ids'] ) ) ) );
update_post_meta( $id, 'usage_limit', absint( $coupon_data['usage_limit'] ) );
update_post_meta( $id, 'usage_limit_per_user', absint( $coupon_data['usage_limit_per_user'] ) );
update_post_meta( $id, 'limit_usage_to_x_items', absint( $coupon_data['limit_usage_to_x_items'] ) );
update_post_meta( $id, 'usage_count', absint( $coupon_data['usage_count'] ) );
update_post_meta( $id, 'expiry_date', wc_clean( $coupon_data['expiry_date'] ) );
update_post_meta( $id, 'apply_before_tax', wc_clean( $coupon_data['apply_before_tax'] ) );
update_post_meta( $id, 'free_shipping', wc_clean( $coupon_data['free_shipping'] ) );
update_post_meta( $id, 'product_categories', array_filter( array_map( 'intval', $coupon_data['product_categories'] ) ) );
update_post_meta( $id, 'exclude_product_categories', array_filter( array_map( 'intval', $coupon_data['exclude_product_categories'] ) ) );
update_post_meta( $id, 'exclude_sale_items', wc_clean( $coupon_data['exclude_sale_items'] ) );
update_post_meta( $id, 'minimum_amount', wc_format_decimal( $coupon_data['minimum_amount'] ) );
update_post_meta( $id, 'maximum_amount', wc_format_decimal( $coupon_data['maximum_amount'] ) );
update_post_meta( $id, 'customer_email', array_filter( array_map( 'sanitize_email', $coupon_data['customer_email'] ) ) );
do_action( 'woocommerce_api_create_coupon', $id, $data );
$this->server->send_status( 201 );
return $this->get_coupon( $id );
}
/**
* Edit a coupon
*
* @since 2.2
* @param int $id the coupon ID
* @param array $data
* @return array
*/
public function edit_coupon( $id, $data ) {
$data = isset( $data['coupon'] ) ? $data['coupon'] : array();
$id = $this->validate_request( $id, 'shop_coupon', 'edit' );
if ( is_wp_error( $id ) ) {
return $id;
}
$data = apply_filters( 'woocommerce_api_edit_coupon_data', $data, $id, $this );
if ( isset( $data['code'] ) ) {
global $wpdb;
$coupon_code = apply_filters( 'woocommerce_coupon_code', $data['code'] );
// Check for duplicate coupon codes
$coupon_found = $wpdb->get_var( $wpdb->prepare( "
SELECT $wpdb->posts.ID
FROM $wpdb->posts
WHERE $wpdb->posts.post_type = 'shop_coupon'
AND $wpdb->posts.post_status = 'publish'
AND $wpdb->posts.post_title = '%s'
AND $wpdb->posts.ID != %s
", $coupon_code, $id ) );
if ( $coupon_found ) {
return new WP_Error( 'woocommerce_api_coupon_code_already_exists', __( 'The coupon code already exists', 'woocommerce' ), array( 'status' => 400 ) );
}
$id = wp_update_post( array( 'ID' => intval( $id ), 'post_title' => $coupon_code, 'post_excerpt' => isset( $data['description'] ) ? $data['description'] : '' ) );
if ( 0 === $id ) {
return new WP_Error( 'woocommerce_api_cannot_update_coupon', __( 'Failed to update coupon', 'woocommerce' ), array( 'status' => 400 ) );
}
}
if ( isset( $data['type'] ) ) {
// Validate coupon types
if ( ! in_array( wc_clean( $data['type'] ), array_keys( wc_get_coupon_types() ) ) ) {
return new WP_Error( 'woocommerce_api_invalid_coupon_type', sprintf( __( 'Invalid coupon type - the coupon type must be any of these: %s', 'woocommerce' ), implode( ', ', array_keys( wc_get_coupon_types() ) ) ), array( 'status' => 400 ) );
}
update_post_meta( $id, 'discount_type', $data['type'] );
}
if ( isset( $data['amount'] ) ) {
update_post_meta( $id, 'coupon_amount', wc_format_decimal( $data['amount'] ) );
}
if ( isset( $data['individual_use'] ) ) {
update_post_meta( $id, 'individual_use', $data['individual_use'] );
}
if ( isset( $data['product_ids'] ) ) {
update_post_meta( $id, 'product_ids', implode( ',', array_filter( array_map( 'intval', $data['product_ids'] ) ) ) );
}
if ( isset( $data['exclude_product_ids'] ) ) {
update_post_meta( $id, 'exclude_product_ids', implode( ',', array_filter( array_map( 'intval', $data['exclude_product_ids'] ) ) ) );
}
if ( isset( $data['usage_limit'] ) ) {
update_post_meta( $id, 'usage_limit', absint( $data['usage_limit'] ) );
}
if ( isset( $data['usage_limit_per_user'] ) ) {
update_post_meta( $id, 'usage_limit_per_user', absint( $data['usage_limit_per_user'] ) );
}
if ( isset( $data['limit_usage_to_x_items'] ) ) {
update_post_meta( $id, 'limit_usage_to_x_items', absint( $data['limit_usage_to_x_items'] ) );
}
if ( isset( $data['usage_count'] ) ) {
update_post_meta( $id, 'usage_count', absint( $data['usage_count'] ) );
}
if ( isset( $data['expiry_date'] ) ) {
update_post_meta( $id, 'expiry_date', wc_clean( $data['expiry_date'] ) );
}
if ( isset( $data['apply_before_tax'] ) ) {
update_post_meta( $id, 'apply_before_tax', wc_clean( $data['apply_before_tax'] ) );
}
if ( isset( $data['enable_free_shipping'] ) ) {
update_post_meta( $id, 'free_shipping', ( true === $data['enable_free_shipping'] ) ? 'yes' : 'no' );
}
if ( isset( $data['product_category_ids'] ) ) {
update_post_meta( $id, 'product_categories', array_filter( array_map( 'intval', $data['product_category_ids'] ) ) );
}
if ( isset( $data['exclude_product_category_ids'] ) ) {
update_post_meta( $id, 'exclude_product_categories', array_filter( array_map( 'intval', $data['exclude_product_category_ids'] ) ) );
}
if ( isset( $data['exclude_sale_items'] ) ) {
update_post_meta( $id, 'exclude_sale_items', wc_clean( $data['exclude_sale_items'] ) );
}
if ( isset( $data['minimum_amount'] ) ) {
update_post_meta( $id, 'minimum_amount', wc_format_decimal( $data['minimum_amount'] ) );
}
if ( isset( $data['maximum_amount'] ) ) {
update_post_meta( $id, 'maximum_amount', wc_format_decimal( $data['maximum_amount'] ) );
}
if ( isset( $data['customer_emails'] ) ) {
update_post_meta( $id, 'customer_email', array_filter( array_map( 'sanitize_email', $data['customer_emails'] ) ) );
}
do_action( 'woocommerce_api_edit_coupon', $id, $data );
return $this->get_coupon( $id );
}
/**
* Delete a coupon
*
* @since 2.2
* @param int $id the coupon ID
* @param bool $force true to permanently delete coupon, false to move to trash
* @return array
*/
public function delete_coupon( $id, $force = false ) {
$id = $this->validate_request( $id, 'shop_coupon', 'delete' );
if ( is_wp_error( $id ) ) {
return $id;
}
do_action( 'woocommerce_api_delete_coupon', $id, $this );
return $this->delete( $id, 'shop_coupon', ( 'true' === $force ) );
}
/**
* Helper method to get coupon post objects
*
* @since 2.1
* @param array $args request arguments for filtering query
* @return WP_Query
*/
private function query_coupons( $args ) {
// set base query arguments
$query_args = array(
'fields' => 'ids',
'post_type' => 'shop_coupon',
'post_status' => 'publish',
);
$query_args = $this->merge_query_args( $query_args, $args );
return new WP_Query( $query_args );
}
}
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