class-wc-rest-crud-controller.php
<?php
/**
* Abstract Rest CRUD Controller Class
*
* @class WC_REST_CRUD_Controller
* @package WooCommerce\RestApi
* @version 3.0.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* WC_REST_CRUD_Controller class.
*
* @extends WC_REST_Posts_Controller
*/
abstract class WC_REST_CRUD_Controller extends WC_REST_Posts_Controller {
/**
* Endpoint namespace.
*
* @var string
*/
protected $namespace = 'wc/v2';
/**
* If object is hierarchical.
*
* @var bool
*/
protected $hierarchical = false;
/**
* Get object.
*
* @param int $id Object ID.
* @return object WC_Data object or WP_Error object.
*/
protected function get_object( $id ) {
// translators: %s: Class method name.
return new WP_Error( 'invalid-method', sprintf( __( "Method '%s' not implemented. Must be overridden in subclass.", 'woocommerce' ), __METHOD__ ), array( 'status' => 405 ) );
}
/**
* Check if a given request has access to read an item.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|boolean
*/
public function get_item_permissions_check( $request ) {
$object = $this->get_object( (int) $request['id'] );
if ( $object && 0 !== $object->get_id() && ! wc_rest_check_post_permissions( $this->post_type, 'read', $object->get_id() ) ) {
return new WP_Error( 'woocommerce_rest_cannot_view', __( 'Sorry, you cannot view this resource.', 'woocommerce' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Check if a given request has access to update an item.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|boolean
*/
public function update_item_permissions_check( $request ) {
$object = $this->get_object( (int) $request['id'] );
if ( $object && 0 !== $object->get_id() && ! wc_rest_check_post_permissions( $this->post_type, 'edit', $object->get_id() ) ) {
return new WP_Error( 'woocommerce_rest_cannot_edit', __( 'Sorry, you are not allowed to edit this resource.', 'woocommerce' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Check if a given request has access to delete an item.
*
* @param WP_REST_Request $request Full details about the request.
* @return bool|WP_Error
*/
public function delete_item_permissions_check( $request ) {
$object = $this->get_object( (int) $request['id'] );
if ( $object && 0 !== $object->get_id() && ! wc_rest_check_post_permissions( $this->post_type, 'delete', $object->get_id() ) ) {
return new WP_Error( 'woocommerce_rest_cannot_delete', __( 'Sorry, you are not allowed to delete this resource.', 'woocommerce' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Get object permalink.
*
* @param object $object Object.
* @return string
*/
protected function get_permalink( $object ) {
return '';
}
/**
* Prepares the object for the REST response.
*
* @since 3.0.0
* @param WC_Data $object Object data.
* @param WP_REST_Request $request Request object.
* @return WP_Error|WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function prepare_object_for_response( $object, $request ) {
// translators: %s: Class method name.
return new WP_Error( 'invalid-method', sprintf( __( "Method '%s' not implemented. Must be overridden in subclass.", 'woocommerce' ), __METHOD__ ), array( 'status' => 405 ) );
}
/**
* Prepares one object for create or update operation.
*
* @since 3.0.0
* @param WP_REST_Request $request Request object.
* @param bool $creating If is creating a new object.
* @return WP_Error|WC_Data The prepared item, or WP_Error object on failure.
*/
protected function prepare_object_for_database( $request, $creating = false ) {
// translators: %s: Class method name.
return new WP_Error( 'invalid-method', sprintf( __( "Method '%s' not implemented. Must be overridden in subclass.", 'woocommerce' ), __METHOD__ ), array( 'status' => 405 ) );
}
/**
* Get a single item.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|WP_REST_Response
*/
public function get_item( $request ) {
$object = $this->get_object( (int) $request['id'] );
if ( ! $object || 0 === $object->get_id() ) {
return new WP_Error( "woocommerce_rest_{$this->post_type}_invalid_id", __( 'Invalid ID.', 'woocommerce' ), array( 'status' => 404 ) );
}
$data = $this->prepare_object_for_response( $object, $request );
$response = rest_ensure_response( $data );
if ( $this->public ) {
$response->link_header( 'alternate', $this->get_permalink( $object ), array( 'type' => 'text/html' ) );
}
return $response;
}
/**
* Save an object data.
*
* @since 3.0.0
* @param WP_REST_Request $request Full details about the request.
* @param bool $creating If is creating a new object.
* @return WC_Data|WP_Error
*/
protected function save_object( $request, $creating = false ) {
try {
$object = $this->prepare_object_for_database( $request, $creating );
if ( is_wp_error( $object ) ) {
return $object;
}
$object->save();
return $this->get_object( $object->get_id() );
} catch ( WC_Data_Exception $e ) {
return new WP_Error( $e->getErrorCode(), $e->getMessage(), $e->getErrorData() );
} catch ( WC_REST_Exception $e ) {
return new WP_Error( $e->getErrorCode(), $e->getMessage(), array( 'status' => $e->getCode() ) );
}
}
/**
* Create a single item.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|WP_REST_Response
*/
public function create_item( $request ) {
if ( ! empty( $request['id'] ) ) {
/* translators: %s: post type */
return new WP_Error( "woocommerce_rest_{$this->post_type}_exists", sprintf( __( 'Cannot create existing %s.', 'woocommerce' ), $this->post_type ), array( 'status' => 400 ) );
}
$object = $this->save_object( $request, true );
if ( is_wp_error( $object ) ) {
return $object;
}
try {
$this->update_additional_fields_for_object( $object, $request );
/**
* Fires after a single object is created or updated via the REST API.
*
* @param WC_Data $object Inserted object.
* @param WP_REST_Request $request Request object.
* @param boolean $creating True when creating object, false when updating.
*/
do_action( "woocommerce_rest_insert_{$this->post_type}_object", $object, $request, true );
} catch ( WC_Data_Exception $e ) {
$object->delete();
return new WP_Error( $e->getErrorCode(), $e->getMessage(), $e->getErrorData() );
} catch ( WC_REST_Exception $e ) {
$object->delete();
return new WP_Error( $e->getErrorCode(), $e->getMessage(), array( 'status' => $e->getCode() ) );
}
$request->set_param( 'context', 'edit' );
$response = $this->prepare_object_for_response( $object, $request );
$response = rest_ensure_response( $response );
$response->set_status( 201 );
$response->header( 'Location', rest_url( sprintf( '/%s/%s/%d', $this->namespace, $this->rest_base, $object->get_id() ) ) );
return $response;
}
/**
* Update a single post.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|WP_REST_Response
*/
public function update_item( $request ) {
$object = $this->get_object( (int) $request['id'] );
if ( ! $object || 0 === $object->get_id() ) {
return new WP_Error( "woocommerce_rest_{$this->post_type}_invalid_id", __( 'Invalid ID.', 'woocommerce' ), array( 'status' => 400 ) );
}
$object = $this->save_object( $request, false );
if ( is_wp_error( $object ) ) {
return $object;
}
try {
$this->update_additional_fields_for_object( $object, $request );
/**
* Fires after a single object is created or updated via the REST API.
*
* @param WC_Data $object Inserted object.
* @param WP_REST_Request $request Request object.
* @param boolean $creating True when creating object, false when updating.
*/
do_action( "woocommerce_rest_insert_{$this->post_type}_object", $object, $request, false );
} catch ( WC_Data_Exception $e ) {
return new WP_Error( $e->getErrorCode(), $e->getMessage(), $e->getErrorData() );
} catch ( WC_REST_Exception $e ) {
return new WP_Error( $e->getErrorCode(), $e->getMessage(), array( 'status' => $e->getCode() ) );
}
$request->set_param( 'context', 'edit' );
$response = $this->prepare_object_for_response( $object, $request );
return rest_ensure_response( $response );
}
/**
* Prepare objects query.
*
* @since 3.0.0
* @param WP_REST_Request $request Full details about the request.
* @return array
*/
protected function prepare_objects_query( $request ) {
$args = array();
$args['offset'] = $request['offset'];
$args['order'] = $request['order'];
$args['orderby'] = $request['orderby'];
$args['paged'] = $request['page'];
$args['post__in'] = $request['include'];
$args['post__not_in'] = $request['exclude'];
$args['posts_per_page'] = $request['per_page'];
$args['name'] = $request['slug'];
$args['post_parent__in'] = $request['parent'];
$args['post_parent__not_in'] = $request['parent_exclude'];
$args['s'] = $request['search'];
$args['fields'] = $this->get_fields_for_response( $request );
if ( 'date' === $args['orderby'] ) {
$args['orderby'] = 'date ID';
}
$date_query = array();
$use_gmt = $request['dates_are_gmt'];
if ( isset( $request['before'] ) ) {
$date_query[] = array(
'column' => $use_gmt ? 'post_date_gmt' : 'post_date',
'before' => $request['before'],
);
}
if ( isset( $request['after'] ) ) {
$date_query[] = array(
'column' => $use_gmt ? 'post_date_gmt' : 'post_date',
'after' => $request['after'],
);
}
if ( isset( $request['modified_before'] ) ) {
$date_query[] = array(
'column' => $use_gmt ? 'post_modified_gmt' : 'post_modified',
'before' => $request['modified_before'],
);
}
if ( isset( $request['modified_after'] ) ) {
$date_query[] = array(
'column' => $use_gmt ? 'post_modified_gmt' : 'post_modified',
'after' => $request['modified_after'],
);
}
if ( ! empty( $date_query ) ) {
$date_query['relation'] = 'AND';
$args['date_query'] = $date_query;
}
// Force the post_type argument, since it's not a user input variable.
$args['post_type'] = $this->post_type;
/**
* Filter the query arguments for a request.
*
* Enables adding extra arguments or setting defaults for a post
* collection request.
*
* @param array $args Key value array of query var to query value.
* @param WP_REST_Request $request The request used.
*/
$args = apply_filters( "woocommerce_rest_{$this->post_type}_object_query", $args, $request );
return $this->prepare_items_query( $args, $request );
}
/**
* Get objects.
*
* @since 3.0.0
* @param array $query_args Query args.
* @return array
*/
protected function get_objects( $query_args ) {
$query = new WP_Query();
$result = $query->query( $query_args );
$total_posts = $query->found_posts;
if ( $total_posts < 1 && isset( $query_args['paged'] ) && absint( $query_args['paged'] ) > 1 ) {
// Out-of-bounds, run the query again without LIMIT for total count.
unset( $query_args['paged'] );
$count_query = new WP_Query();
$count_query->query( $query_args );
$total_posts = $count_query->found_posts;
}
return array(
'objects' => array_filter( array_map( array( $this, 'get_object' ), $result ) ),
'total' => (int) $total_posts,
'pages' => (int) ceil( $total_posts / (int) $query->query_vars['posts_per_page'] ),
);
}
/**
* Get a collection of posts.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|WP_REST_Response
*/
public function get_items( $request ) {
$query_args = $this->prepare_objects_query( $request );
if ( is_wp_error( current( $query_args ) ) ) {
return current( $query_args );
}
$query_results = $this->get_objects( $query_args );
$objects = array();
foreach ( $query_results['objects'] as $object ) {
if ( ! wc_rest_check_post_permissions( $this->post_type, 'read', $object->get_id() ) ) {
continue;
}
$data = $this->prepare_object_for_response( $object, $request );
$objects[] = $this->prepare_response_for_collection( $data );
}
$page = (int) $query_args['paged'];
$max_pages = $query_results['pages'];
$response = rest_ensure_response( $objects );
$response->header( 'X-WP-Total', $query_results['total'] );
$response->header( 'X-WP-TotalPages', (int) $max_pages );
$base = $this->rest_base;
$attrib_prefix = '(?P<';
if ( strpos( $base, $attrib_prefix ) !== false ) {
$attrib_names = array();
preg_match( '/\(\?P<[^>]+>.*\)/', $base, $attrib_names, PREG_OFFSET_CAPTURE );
foreach ( $attrib_names as $attrib_name_match ) {
$beginning_offset = strlen( $attrib_prefix );
$attrib_name_end = strpos( $attrib_name_match[0], '>', $attrib_name_match[1] );
$attrib_name = substr( $attrib_name_match[0], $beginning_offset, $attrib_name_end - $beginning_offset );
if ( isset( $request[ $attrib_name ] ) ) {
$base = str_replace( "(?P<$attrib_name>[\d]+)", $request[ $attrib_name ], $base );
}
}
}
$base = add_query_arg( $request->get_query_params(), rest_url( sprintf( '/%s/%s', $this->namespace, $base ) ) );
if ( $page > 1 ) {
$prev_page = $page - 1;
if ( $prev_page > $max_pages ) {
$prev_page = $max_pages;
}
$prev_link = add_query_arg( 'page', $prev_page, $base );
$response->link_header( 'prev', $prev_link );
}
if ( $max_pages > $page ) {
$next_page = $page + 1;
$next_link = add_query_arg( 'page', $next_page, $base );
$response->link_header( 'next', $next_link );
}
return $response;
}
/**
* Delete a single item.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error
*/
public function delete_item( $request ) {
$force = (bool) $request['force'];
$object = $this->get_object( (int) $request['id'] );
$result = false;
if ( ! $object || 0 === $object->get_id() ) {
return new WP_Error( "woocommerce_rest_{$this->post_type}_invalid_id", __( 'Invalid ID.', 'woocommerce' ), array( 'status' => 404 ) );
}
$supports_trash = EMPTY_TRASH_DAYS > 0 && is_callable( array( $object, 'get_status' ) );
/**
* Filter whether an object is trashable.
*
* Return false to disable trash support for the object.
*
* @param boolean $supports_trash Whether the object type support trashing.
* @param WC_Data $object The object being considered for trashing support.
*/
$supports_trash = apply_filters( "woocommerce_rest_{$this->post_type}_object_trashable", $supports_trash, $object );
if ( ! wc_rest_check_post_permissions( $this->post_type, 'delete', $object->get_id() ) ) {
/* translators: %s: post type */
return new WP_Error( "woocommerce_rest_user_cannot_delete_{$this->post_type}", sprintf( __( 'Sorry, you are not allowed to delete %s.', 'woocommerce' ), $this->post_type ), array( 'status' => rest_authorization_required_code() ) );
}
$request->set_param( 'context', 'edit' );
$response = $this->prepare_object_for_response( $object, $request );
// If we're forcing, then delete permanently.
if ( $force ) {
$object->delete( true );
$result = 0 === $object->get_id();
} else {
// If we don't support trashing for this type, error out.
if ( ! $supports_trash ) {
/* translators: %s: post type */
return new WP_Error( 'woocommerce_rest_trash_not_supported', sprintf( __( 'The %s does not support trashing.', 'woocommerce' ), $this->post_type ), array( 'status' => 501 ) );
}
// Otherwise, only trash if we haven't already.
if ( is_callable( array( $object, 'get_status' ) ) ) {
if ( 'trash' === $object->get_status() ) {
/* translators: %s: post type */
return new WP_Error( 'woocommerce_rest_already_trashed', sprintf( __( 'The %s has already been deleted.', 'woocommerce' ), $this->post_type ), array( 'status' => 410 ) );
}
$object->delete();
$result = 'trash' === $object->get_status();
}
}
if ( ! $result ) {
/* translators: %s: post type */
return new WP_Error( 'woocommerce_rest_cannot_delete', sprintf( __( 'The %s cannot be deleted.', 'woocommerce' ), $this->post_type ), array( 'status' => 500 ) );
}
/**
* Fires after a single object is deleted or trashed via the REST API.
*
* @param WC_Data $object The deleted or trashed object.
* @param WP_REST_Response $response The response data.
* @param WP_REST_Request $request The request sent to the API.
*/
do_action( "woocommerce_rest_delete_{$this->post_type}_object", $object, $response, $request );
return $response;
}
/**
* Get fields for an object if getter is defined.
*
* @param object $object Object we are fetching response for.
* @param string $context Context of the request. Can be `view` or `edit`.
* @param array $fields List of fields to fetch.
* @return array Data fetched from getters.
*/
public function fetch_fields_using_getters( $object, $context, $fields ) {
$data = array();
foreach ( $fields as $field ) {
if ( method_exists( $this, "api_get_$field" ) ) {
$data[ $field ] = $this->{"api_get_$field"}( $object, $context );
}
}
return $data;
}
/**
* Prepare links for the request.
*
* @param WC_Data $object Object data.
* @param WP_REST_Request $request Request object.
* @return array Links for the given post.
*/
protected function prepare_links( $object, $request ) {
$links = array(
'self' => array(
'href' => rest_url( sprintf( '/%s/%s/%d', $this->namespace, $this->rest_base, $object->get_id() ) ),
),
'collection' => array(
'href' => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
),
);
return $links;
}
/**
* Get the query params for collections of attachments.
*
* @return array
*/
public function get_collection_params() {
$params = array();
$params['context'] = $this->get_context_param();
$params['context']['default'] = 'view';
$params['page'] = array(
'description' => __( 'Current page of the collection.', 'woocommerce' ),
'type' => 'integer',
'default' => 1,
'sanitize_callback' => 'absint',
'validate_callback' => 'rest_validate_request_arg',
'minimum' => 1,
);
$params['per_page'] = array(
'description' => __( 'Maximum number of items to be returned in result set.', 'woocommerce' ),
'type' => 'integer',
'default' => 10,
'minimum' => 1,
'maximum' => 100,
'sanitize_callback' => 'absint',
'validate_callback' => 'rest_validate_request_arg',
);
$params['search'] = array(
'description' => __( 'Limit results to those matching a string.', 'woocommerce' ),
'type' => 'string',
'sanitize_callback' => 'sanitize_text_field',
'validate_callback' => 'rest_validate_request_arg',
);
$params['after'] = array(
'description' => __( 'Limit response to resources published after a given ISO8601 compliant date.', 'woocommerce' ),
'type' => 'string',
'format' => 'date-time',
'validate_callback' => 'rest_validate_request_arg',
);
$params['before'] = array(
'description' => __( 'Limit response to resources published before a given ISO8601 compliant date.', 'woocommerce' ),
'type' => 'string',
'format' => 'date-time',
'validate_callback' => 'rest_validate_request_arg',
);
$params['modified_after'] = array(
'description' => __( 'Limit response to resources modified after a given ISO8601 compliant date.', 'woocommerce' ),
'type' => 'string',
'format' => 'date-time',
'validate_callback' => 'rest_validate_request_arg',
);
$params['modified_before'] = array(
'description' => __( 'Limit response to resources modified before a given ISO8601 compliant date.', 'woocommerce' ),
'type' => 'string',
'format' => 'date-time',
'validate_callback' => 'rest_validate_request_arg',
);
$params['dates_are_gmt'] = array(
'description' => __( 'Whether to consider GMT post dates when limiting response by published or modified date.', 'woocommerce' ),
'type' => 'boolean',
'default' => false,
'validate_callback' => 'rest_validate_request_arg',
);
$params['exclude'] = array(
'description' => __( 'Ensure result set excludes specific IDs.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
'sanitize_callback' => 'wp_parse_id_list',
);
$params['include'] = array(
'description' => __( 'Limit result set to specific ids.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
'sanitize_callback' => 'wp_parse_id_list',
);
$params['offset'] = array(
'description' => __( 'Offset the result set by a specific number of items.', 'woocommerce' ),
'type' => 'integer',
'sanitize_callback' => 'absint',
'validate_callback' => 'rest_validate_request_arg',
);
$params['order'] = array(
'description' => __( 'Order sort attribute ascending or descending.', 'woocommerce' ),
'type' => 'string',
'default' => 'desc',
'enum' => array( 'asc', 'desc' ),
'validate_callback' => 'rest_validate_request_arg',
);
$params['orderby'] = array(
'description' => __( 'Sort collection by object attribute.', 'woocommerce' ),
'type' => 'string',
'default' => 'date',
'enum' => array(
'date',
'id',
'include',
'title',
'slug',
'modified',
),
'validate_callback' => 'rest_validate_request_arg',
);
if ( $this->hierarchical ) {
$params['parent'] = array(
'description' => __( 'Limit result set to those of particular parent IDs.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'sanitize_callback' => 'wp_parse_id_list',
'default' => array(),
);
$params['parent_exclude'] = array(
'description' => __( 'Limit result set to all items except those of a particular parent ID.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'sanitize_callback' => 'wp_parse_id_list',
'default' => array(),
);
}
/**
* Filter collection parameters for the posts controller.
*
* The dynamic part of the filter `$this->post_type` refers to the post
* type slug for the controller.
*
* This filter registers the collection parameter, but does not map the
* collection parameter to an internal WP_Query parameter. Use the
* `rest_{$this->post_type}_query` filter to set WP_Query parameters.
*
* @param array $query_params JSON Schema-formatted collection parameters.
* @param WP_Post_Type $post_type Post type object.
*/
return apply_filters( "rest_{$this->post_type}_collection_params", $params, $this->post_type );
}
}
