Struct warpgrapher::engine::objects::Rel

pub struct Rel<GlobalCtx, RequestCtx> where
    GlobalCtx: GlobalContext,
    RequestCtx: RequestContext,  { /* fields omitted */ }

Represents a relationship in the graph data structure for auto-generated CRUD operations and custom resolvers.

Examples

fn custom_resolve(facade: ResolverFacade<(), ()>) -> ExecutionResult {
    // do work
    let node_id = Value::String("12345678-1234-1234-1234-1234567890ab".to_string());

    let mut hm1 = HashMap::new();
    hm1.insert("role".to_string(), Value::String("member".to_string()));

    // return rel
    facade.resolve_rel(&facade.create_rel(
        Value::String("655c4e13-5075-45ea-97de-b43f800e5854".to_string()),
        Some(hm1), node_id, "DstNodeLabel")?)
}

Trait Implementations

impl<GlobalCtx: Clone, RequestCtx: Clone> Clone for Rel<GlobalCtx, RequestCtx> where
    GlobalCtx: GlobalContext,
    RequestCtx: RequestContext, 

fn clone(&self) -> Rel<GlobalCtx, RequestCtx>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<GlobalCtx: Debug, RequestCtx: Debug> Debug for Rel<GlobalCtx, RequestCtx> where
    GlobalCtx: GlobalContext,
    RequestCtx: RequestContext, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<GlobalCtx, RequestCtx> GraphQLType<DefaultScalarValue> for Rel<GlobalCtx, RequestCtx> where
    GlobalCtx: GlobalContext,
    RequestCtx: RequestContext, 

type Context = GraphQLContext<GlobalCtx, RequestCtx>

The expected context type for this GraphQL type

type TypeInfo = Info

Type that may carry additional schema information

fn name(info: &Self::TypeInfo) -> Option<&str>

The name of the GraphQL type to expose.

fn concrete_type_name(
    &self,
    _context: &Self::Context,
    info: &Self::TypeInfo
) -> String

Return the concrete type name for this instance/union.

fn meta<'r>(info: &Self::TypeInfo, registry: &mut Registry<'r>) -> MetaType<'r> where
    DefaultScalarValue: 'r, 

The meta type representing this GraphQL type.

fn resolve_field(
    &self,
    info: &Self::TypeInfo,
    field_name: &str,
    args: &Arguments<'_>,
    executor: &Executor<'_, Self::Context>
) -> ExecutionResult

Resolve the value of a single field on this type.

fn resolve_into_type(
    &self,
    info: &Self::TypeInfo,
    type_name: &str,
    selection_set: Option<&[Selection<'_, S>]>,
    executor: &Executor<'_, Self::Context, S>
) -> Result<Value<S>, FieldError<S>>

Resolve this interface or union into a concrete type

fn resolve(
    &self,
    info: &Self::TypeInfo,
    selection_set: Option<&[Selection<'_, S>]>,
    executor: &Executor<'_, Self::Context, S>
) -> Value<S>

Resolve the provided selection set against the current object.