Struct SchemaExtensions 

pub struct SchemaExtensions {
    pub relations: Vec<Relation>,
    pub mutations: Vec<(String, MutationKind)>,
    pub subscriptions: Vec<String>,
}

Schema 扩展配置

将关联关系、分页类型、变更、订阅等扩展信息附加到既有 schema

Fields

relations: Vec<Relation>

关联关系列表

mutations: Vec<(String, MutationKind)>

变更定义列表（类型名 + 操作类型）

subscriptions: Vec<String>

订阅主题列表

Implementations

impl SchemaExtensions

pub fn new() -> Self

pub fn with_relation(self, relation: Relation) -> Self

添加关联关系

pub fn with_mutation( self, type_name: impl Into<String>, kind: MutationKind, ) -> Self

添加变更定义

pub fn with_subscription(self, topic: impl Into<String>) -> Self

添加订阅主题

pub fn to_sdl(&self) -> String

将扩展信息渲染为 SDL 片段

Trait Implementations

impl Default for SchemaExtensions

fn default() -> Self

Returns the “default value” for a type.