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namespace WPGraphQL\Type\PostObject\Mutation;
use GraphQL\Error\UserError;
use GraphQLRelay\Relay;
use WPGraphQL\Types;
/**
* Class PostObjectCreate
*
* @package WPGraphQL\Type\PostObject\Mutation
*/
class PostObjectCreate {
/**
* Holds the mutation field definition
*
* @var array $mutation
*/
private static $mutation = [];
/**
* Defines the create mutation for PostTypeObjects
*
* @param \WP_Post_Type $post_type_object
*
* @return array|mixed
*/
public static function mutate( \WP_Post_Type $post_type_object ) {
if ( ! empty( $post_type_object->graphql_single_name ) && empty( self::$mutation[ $post_type_object->graphql_single_name ] ) ) :
/**
* Set the name of the mutation being performed
*/
$mutation_name = 'Create' . ucwords( $post_type_object->graphql_single_name );
self::$mutation[ $post_type_object->graphql_single_name ] = Relay::mutationWithClientMutationId( [
'name' => esc_html( $mutation_name ),
// translators: The placeholder is the name of the object type
'description' => sprintf( __( 'Create %1$s objects', 'wp-graphql' ), $post_type_object->graphql_single_name ),
'inputFields' => PostObjectMutation::input_fields( $post_type_object ),
'outputFields' => [
$post_type_object->graphql_single_name => [
'type' => Types::post_object( $post_type_object->name ),
'resolve' => function( $payload ) {
return get_post( $payload['id'] );
},
],
],
'mutateAndGetPayload' => function( $input ) use ( $post_type_object, $mutation_name ) {
/**
* Throw an exception if there's no input
*/
if ( ( empty( $post_type_object->name ) ) || ( empty( $input ) || ! is_array( $input ) ) ) {
throw new UserError( __( 'Mutation not processed. There was no input for the mutation or the post_type_object was invalid', 'wp-graphql' ) );
}
/**
* Stop now if a user isn't allowed to create a post
*/
if ( ! current_user_can( $post_type_object->cap->create_posts ) ) {
// translators: the $post_type_object->graphql_plural_name placeholder is the name of the object being mutated
throw new UserError( sprintf( __( 'Sorry, you are not allowed to create %1$s', 'wp-graphql' ), $post_type_object->graphql_plural_name ) );
}
/**
* If the post being created is being assigned to another user that's not the current user, make sure
* the current user has permission to edit others posts for this post_type
*/
if ( ! empty( $input['authorId'] ) && get_current_user_id() !== $input['authorId'] && ! current_user_can( $post_type_object->cap->edit_others_posts ) ) {
// translators: the $post_type_object->graphql_plural_name placeholder is the name of the object being mutated
throw new UserError( sprintf( __( 'Sorry, you are not allowed to create %1$s as this user', 'wp-graphql' ), $post_type_object->graphql_plural_name ) );
}
/**
* @todo: When we support assigning terms and setting posts as "sticky" we need to check permissions
* @see:https://github.com/WordPress/WordPress/blob/e357195ce303017d517aff944644a7a1232926f7/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php#L504-L506
* @see: https://github.com/WordPress/WordPress/blob/e357195ce303017d517aff944644a7a1232926f7/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php#L496-L498
*/
/**
* insert the post object and get the ID
*/
$post_args = PostObjectMutation::prepare_post_object( $input, $post_type_object, $mutation_name );
/**
* Insert the post and retrieve the ID
*/
$post_id = wp_insert_post( wp_slash( (array) $post_args ), true );
/**
* Throw an exception if the post failed to create
*/
if ( is_wp_error( $post_id ) ) {
$error_message = $post_id->get_error_message();
if ( ! empty( $error_message ) ) {
throw new UserError( esc_html( $error_message ) );
} else {
throw new UserError( __( 'The object failed to create but no error was provided', 'wp-graphql' ) );
}
}
/**
* If the $post_id is empty, we should throw an exception
*/
if ( empty( $post_id ) ) {
throw new UserError( __( 'The object failed to create', 'wp-graphql' ) );
}
/**
* This updates additional data not part of the posts table (postmeta, terms, other relations, etc)
*
* The input for the postObjectMutation will be passed, along with the $new_post_id for the
* postObject that was created so that relations can be set, meta can be updated, etc.
*/
PostObjectMutation::update_additional_post_object_data( $post_id, $input, $post_type_object, $mutation_name );
/**
* Return the post object
*/
return [
'id' => $post_id,
];
},
] );
endif; // End if().
return ! empty( self::$mutation[ $post_type_object->graphql_single_name ] ) ? self::$mutation[ $post_type_object->graphql_single_name ] : null;
}
}