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namespace WPGraphQL\Type;
use GraphQL\Type\Definition\ResolveInfo;
use GraphQLRelay\Relay;
use WPGraphQL\AppContext;
use WPGraphQL\Data\DataSource;
use WPGraphQL\Type\Comment\CommentQuery;
use WPGraphQL\Type\Comment\Connection\CommentConnectionDefinition;
use WPGraphQL\Type\Setting\SettingQuery;
use WPGraphQL\Type\Plugin\Connection\PluginConnectionDefinition;
use WPGraphQL\Type\Plugin\PluginQuery;
use WPGraphQL\Type\PostObject\PostObjectQuery;
use WPGraphQL\Type\PostObject\Connection\PostObjectConnectionDefinition;
use WPGraphQL\Type\TermObject\Connection\TermObjectConnectionDefinition;
use WPGraphQL\Type\TermObject\TermObjectQuery;
use WPGraphQL\Type\Theme\Connection\ThemeConnectionDefinition;
use WPGraphQL\Type\User\Connection\UserConnectionDefinition;
use WPGraphQL\Type\User\UserQuery;
use WPGraphQL\Types;
/**
* Class RootQueryType
* The RootQueryType is the primary entry for Queries in the GraphQL Schema.
* @package WPGraphQL\Type
* @since 0.0.4
*/
class RootQueryType extends WPObjectType {
/**
* RootQueryType constructor.
* @since 0.0.5
*/
public function __construct() {
/**
* Run an action when the RootQuery is being generated
* @since 0.0.5
*/
do_action( 'graphql_root_query' );
/**
* Configure the RootQuery
* @since 0.0.5
*/
$config = [
'name' => 'rootQuery',
'fields' => self::fields(),
];
/**
* Pass the config to the parent construct
* @since 0.0.5
*/
parent::__construct( $config );
}
public static function fields() {
/**
* Setup data
* @since 0.0.5
*/
$allowed_post_types = \WPGraphQL::$allowed_post_types;
$allowed_taxonomies = \WPGraphQL::$allowed_taxonomies;
$allowed_setting_types = DataSource::get_allowed_setting_types();
$node_definition = DataSource::get_node_definition();
/**
* Creates the node root query field which can be used
* to query any node from the system using the globally unique
* ID
* @since 0.0.5
*/
$fields['node'] = $node_definition['nodeField'];
/**
* Creates the comment root query field
* @since 0.0.5
*/
$fields['comment'] = CommentQuery::root_query();
$fields['comments'] = CommentConnectionDefinition::connection();
/**
* Creates the plugin root query field
* @since 0.0.5
*/
$fields['plugin'] = PluginQuery::root_query();
$fields['plugins'] = PluginConnectionDefinition::connection();
/**
* Create the root query fields for any setting type in
* the $allowed_setting_types array.
*/
if ( ! empty( $allowed_setting_types ) && is_array( $allowed_setting_types ) ) {
foreach ( $allowed_setting_types as $group => $setting_type ) {
$setting_type = str_replace('_', '', strtolower( $group ) );
$fields[ $setting_type . 'Settings' ] = SettingQuery::root_query( $group, $setting_type );
}
}
/**
* Creates the theme root query field
* @since 0.0.5
*/
$fields['theme'] = self::theme();
/**
* Creates the theme root query field to query a collection
* of themes
* @since 0.0.5
*/
$fields['themes'] = ThemeConnectionDefinition::connection();
/**
* Creates the user root query field
* @since 0.0.5
*/
$fields['user'] = UserQuery::root_query();
/**
* Creates the users root query field to query a collection
* of users
* @since 0.0.5
*/
$fields['users'] = UserConnectionDefinition::connection();
/**
* Creates the viewer root query field
* @since 0.0.5
*/
$fields['viewer'] = self::viewer();
/**
* Creates the root fields for post objects (of any post_type)
* This registers root fields (single and plural) for any post_type that has been registered as an
* allowed post_type.
* @see \WPGraphQL::$allowed_post_types
* @since 0.0.5
*/
if ( ! empty( $allowed_post_types ) && is_array( $allowed_post_types ) ) {
foreach ( $allowed_post_types as $post_type ) {
/**
* Get the post_type object to pass down to the schema
* @since 0.0.5
*/
$post_type_object = get_post_type_object( $post_type );
/**
* Root query for single posts (of the specified post_type)
* @since 0.0.5
*/
$fields[ $post_type_object->graphql_single_name ] = PostObjectQuery::root_query( $post_type_object );
$fields[ $post_type_object->graphql_single_name . 'By' ] = PostObjectQuery::post_object_by( $post_type_object );
/**
* Root query for collections of posts (of the specified post_type)
* @since 0.0.5
*/
$fields[ $post_type_object->graphql_plural_name ] = PostObjectConnectionDefinition::connection( $post_type_object );
}
}
/**
* Creates the root fields for terms of each taxonomy
* This registers root fields (single and plural) for terms of any taxonomy that has been registered as an
* allowed taxonomy.
* @see \WPGraphQL::$allowed_taxonomies
* @since 0.0.5
*/
if ( ! empty( $allowed_taxonomies ) && is_array( $allowed_taxonomies ) ) {
foreach ( $allowed_taxonomies as $taxonomy ) {
/**
* Get the taxonomy object
* @since 0.0.5
*/
$taxonomy_object = get_taxonomy( $taxonomy );
/**
* Root query for single terms (of the specified taxonomy)
* @since 0.0.5
*/
$fields[ $taxonomy_object->graphql_single_name ] = TermObjectQuery::root_query( $taxonomy_object );
/**
* Root query for collections of terms (of the specified taxonomy)
* @since 0.0.5
*/
$fields[ $taxonomy_object->graphql_plural_name ] = TermObjectConnectionDefinition::connection( $taxonomy_object );
}
}
/**
* Pass the root queries through a filter.
* This allows fields to be added or removed.
* NOTE: Use this filter with care. Before removing existing fields seriously consider deprecating the field, as
* that will allow the field to still be used and not break systems that rely on it, but just not be present
* in Schema documentation, etc.
* If the behavior of a field needs to be changed, depending on the change, it might be better to consider adding
* a new field with the new behavior instead of overriding an existing field. This will allow existing fields
* to behave as expected, but will allow introduction of new fields with different behavior at any point.
* @since 0.0.5
*/
$fields = apply_filters( 'graphql_root_queries', $fields );
/**
* Sort the fields alphabetically by keys
* (this makes the schema documentation much nicer to browse)
*/
ksort( $fields );
return $fields;
}
/**
* theme
* This sets up the theme entry point for the root query
* @return array
* @since 0.0.5
*/
public static function theme() {
return [
'type' => Types::theme(),
'description' => __( 'A Theme object', 'wp-graphql' ),
'args' => [
'id' => Types::non_null( Types::id() ),
],
'resolve' => function( $source, array $args, $context, ResolveInfo $info ) {
$id_components = Relay::fromGlobalId( $args['id'] );
return DataSource::resolve_theme( $id_components['id'] );
},
];
}
/**
* viewer
* This sets up the viewer entry point for the root query
* @return array
* @since 0.0.5
*/
public static function viewer() {
return [
'type' => Types::user(),
'description' => __( 'Returns the current user', 'wp-graphql' ),
'resolve' => function( $source, array $args, AppContext $context, ResolveInfo $info ) {
return ( false !== $context->viewer->ID ) ? DataSource::resolve_user( $context->viewer->ID ) : null;
},
];
}
}