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<?php
namespace WPGraphQL\Type\PostObject\Mutation;
use GraphQL\Error\UserError;
use GraphQLRelay\Relay;
use WPGraphQL\Types;
class PostObjectDelete {
private static $mutation = [];
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 ] ) ) :
$mutation_name = 'Delete' . ucwords( $post_type_object->graphql_single_name );
self::$mutation[ $post_type_object->graphql_single_name ] = Relay::mutationWithClientMutationId( [
'name' => esc_html( $mutation_name ),
'description' => sprintf( __( 'Delete %1$s objects. By default %1$s objects will be moved to the trash unless the forceDelete is used', 'wp-graphql' ), $post_type_object->graphql_single_name ),
'inputFields' => [
'id' => [
'type' => Types::non_null( Types::id() ),
'description' => sprintf( __( 'The ID of the %1$s to delete', 'wp-graphql' ), $post_type_object->graphql_single_name ),
],
'forceDelete' => [
'type' => Types::boolean(),
'description' => __( 'Whether the object should be force deleted instead of being moved to the trash', 'wp-graphql' ),
],
],
'outputFields' => [
'deletedId' => [
'type' => Types::id(),
'description' => __( 'The ID of the deleted object', 'wp-graphql' ),
'resolve' => function( $payload ) use ( $post_type_object ) {
$deleted = (object) $payload['postObject'];
return ! empty( $deleted->ID ) ? Relay::toGlobalId( $post_type_object->name, absint( $deleted->ID ) ) : null;
},
],
$post_type_object->graphql_single_name => [
'type' => Types::post_object( $post_type_object->name ),
'description' => __( 'The object before it was deleted', 'wp-graphql' ),
'resolve' => function( $payload ) {
$deleted = (object) $payload['postObject'];
return ! empty( $deleted ) ? $deleted : null;
},
],
],
'mutateAndGetPayload' => function( $input ) use ( $post_type_object, $mutation_name ) {
$id_parts = Relay::fromGlobalId( $input['id'] );
if ( ! current_user_can( $post_type_object->cap->delete_post, absint( $id_parts['id'] ) ) ) {
throw new UserError( sprintf( __( 'Sorry, you are not allowed to delete %1$s', 'wp-graphql' ), $post_type_object->graphql_plural_name ) );
}
$force_delete = ( ! empty( $input['forceDelete'] ) && true === $input['forceDelete'] ) ? true : false;
$post_before_delete = get_post( absint( $id_parts['id'] ) );
if ( 'trash' === $post_before_delete->post_status ) {
if ( true !== $force_delete ) {
throw new UserError( sprintf( __( 'The %1$s with id %2$s is already in the trash. To remove from the trash, use the forceDelete input', 'wp-graphql' ), $post_type_object->graphql_single_name, $input['id'] ) );
}
}
$deleted = wp_delete_post( $id_parts['id'], $force_delete );
$post_before_delete->post_status = ( false !== $deleted && true !== $force_delete ) ? 'trash' : $post_before_delete->post_status;
return [
'postObject' => $post_before_delete,
];
},
] );
endif;
return ! empty( self::$mutation[ $post_type_object->graphql_single_name ] ) ? self::$mutation[ $post_type_object->graphql_single_name ] : null;
}
}