Module: GraphQL::BaseType::HasPossibleTypes

Included in:

InterfaceType, UnionType

Defined in:

lib/graphql/base_type.rb

Constant Summary

DEFAULT_RESOLVE_TYPE =

The default implementation of #resolve_type gets object.class.name and finds a type with the same name

-> (object, ctx) {
  type_name = object.class.name
  ctx.schema.possible_types(self).find {|t| t.name == type_name}
}

Instance Method Summary

• #resolve_type(object, ctx) ⇒ GraphQL::ObjectType

  Return the implementing type for object.

• #resolve_type=(new_proc) ⇒ Object

Instance Method Details

#resolve_type(object, ctx) ⇒ GraphQL::ObjectType

Return the implementing type for object. The default implementation assumes that there’s a type with the same name as object.class.name. Maybe you’ll need to override this in your own interfaces!

Parameters:

• object (Object) —

  the object which needs a type to expose it

• ctx (GraphQL::Query::Context)

Returns:

• (GraphQL::ObjectType) —

  the type which should expose object

# File 'lib/graphql/base_type.rb', line 55

def resolve_type(object, ctx)
  ensure_defined
  instance_exec(object, ctx, &(@resolve_type_proc || DEFAULT_RESOLVE_TYPE))
end

#resolve_type=(new_proc) ⇒ Object

# File 'lib/graphql/base_type.rb', line 67

def resolve_type=(new_proc)
  @resolve_type_proc = new_proc || DEFAULT_RESOLVE_TYPE
end