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<?php
namespace WPGraphQL\Type\PostObject;
use GraphQL\Error\UserError;
use GraphQL\Type\Definition\ResolveInfo;
use GraphQLRelay\Relay;
use WPGraphQL\AppContext;
use WPGraphQL\Data\DataSource;
use WPGraphQL\Type\WPInputObjectType;
use WPGraphQL\Types;
class PostObjectQuery {
private static $root_query;
private static $post_object_by;
private static $post_object_by_args;
public static function root_query( $post_type_object ) {
if ( null === self::$root_query ) {
self::$root_query = [];
}
if ( ! empty( $post_type_object->name ) && empty( self::$root_query[ $post_type_object->name ] ) ) :
self::$root_query[ $post_type_object->name ] = [
'type' => Types::post_object( $post_type_object->name ),
'description' => sprintf( __( 'A % object', 'wp-graphql' ), $post_type_object->graphql_single_name ),
'args' => [
'id' => Types::non_null( Types::id() ),
],
'resolve' => function( $source, array $args, AppContext $context, ResolveInfo $info ) use ( $post_type_object ) {
$id_components = Relay::fromGlobalId( $args['id'] );
return DataSource::resolve_post_object( $id_components['id'], $post_type_object->name );
},
];
endif;
return ! empty( self::$root_query[ $post_type_object->name ] ) ? self::$root_query[ $post_type_object->name ] : null;
}
public static function post_object_by( \WP_Post_Type $post_type_object ) {
if ( null === self::$post_object_by ) {
self::$post_object_by = [];
}
if ( ! empty( $post_type_object->name ) && empty( self::$post_object_by[ $post_type_object->name ] ) ) :
self::$post_object_by[ $post_type_object->name ] = [
'type' => Types::post_object( $post_type_object->name ),
'description' => sprintf( __( 'A %s object', 'wp-graphql' ), $post_type_object->graphql_single_name ),
'args' => self::post_object_by_args( $post_type_object ),
'resolve' => function( $source, array $args, AppContext $context, ResolveInfo $info ) use ( $post_type_object ) {
$post_object = null;
if ( ! empty( $args['id'] ) ) {
$id_components = Relay::fromGlobalId( $args['id'] );
if ( empty( $id_components['id'] ) || empty( $id_components[ 'type' ] ) ) {
throw new UserError( __( 'The "id" is invalid', 'wp-graphql' ) );
}
$post_object = DataSource::resolve_post_object( absint( $id_components['id'] ), $post_type_object->name );
} elseif ( ! empty( $args[ $post_type_object->graphql_single_name . 'Id' ] ) ) {
$id = $args[ $post_type_object->graphql_single_name . 'Id' ];
$post_object = DataSource::resolve_post_object( $id, $post_type_object->name );
} elseif ( ! empty( $args['uri'] ) ) {
$uri = esc_html( $args['uri'] );
$post_object = DataSource::get_post_object_by_uri( $uri, 'OBJECT', $post_type_object->name );
} elseif ( ! empty( $args['slug'] ) ) {
$slug = esc_html( $args['slug'] );
$post_object = DataSource::get_post_object_by_uri( $slug, 'OBJECT', $post_type_object->name );
}
if ( empty( $post_object ) || is_wp_error( $post_object ) ) {
throw new UserError( __( 'No resource could by found', 'wp-graphql' ) );
}
if ( ! $post_object instanceof \WP_Post ) {
throw new UserError( __( 'The queried resource is not valid', 'wp-graphql' ) );
}
if ( $post_type_object->name !== $post_object->post_type ) {
throw new UserError( __( 'The queried resource is not the correct type', 'wp-graphql' ) );
}
return $post_object;
},
];
endif;
return ! empty( self::$post_object_by[ $post_type_object->name ] ) ? self::$post_object_by[ $post_type_object->name ] : null;
}
public static function post_object_by_args( \WP_Post_Type $post_type_object ) {
if ( null === self::$post_object_by_args ) {
self::$post_object_by_args = [];
}
if ( empty( self::$post_object_by_args[ ucfirst( $post_type_object->name ) . 'ByArgs' ] ) ) {
$args = [
'id' => [
'type' => Types::string(),
'description' => sprintf( __( 'Get the object by it\'s global ID', 'wp-graphql' ), $post_type_object->graphql_single_name ),
],
$post_type_object->graphql_single_name . 'Id' => [
'type' => Types::int(),
'description' => sprintf( __( 'Get the %s by it\'s database ID', 'wp-graphql' ), $post_type_object->graphql_single_name ),
],
'uri' => [
'type' => Types::string(),
'description' => sprintf( __( 'Get the %s by it\'s uri', 'wp-graphql' ), $post_type_object->graphql_single_name ),
]
];
if ( false === $post_type_object->hierarchical ) {
$args['slug'] = [
'type' => Types::string(),
'description' => sprintf( __( 'Get the %s by it\'s slug (only available for non-hierarchical types)', 'wp-graphql' ), $post_type_object->graphql_single_name ),
];
}
self::$post_object_by_args[ $post_type_object->name . 'ByArgs' ] = WPInputObjectType::prepare_fields( $args, ucfirst( $post_type_object->name . 'ByArgs' ) );
}
return self::$post_object_by_args[ $post_type_object->name . 'ByArgs' ];
}
}