Graphene: Defining cross-references between objects

[romaia]

This is more of a question than a issue.

Suppose the following example:

class Sale(ObjectType):
   pass

class SaleItem(ObjectType):
    sale = Field(Sale)

How can I proceed to add a new field on Sale that references SaleItem, like:

class Sale(ObjectType):
    items = List(SaleItem)

[jkimbo]

@romaia you can lazily reference other types by using a lambda function like this:

class Sale(ObjectType):
    items = List(lambda: SaleItem)

class SaleItem(ObjectType):
    sale = Field(Sale)

You can also specify a full import path as a string (like Django):

# This file is api/definitions/sale.py
class Sale(ObjectType):
    items = List('api.definitions.sale.SaleItem')

class SaleItem(ObjectType):
    sale = Field(Sale)

[mikebobadilla]

@jkimbo Thanks so much. I came from JavaScript and completely forgot that arrow functions are just lambda functions 😛

[jkimbo]

You're welcome @mikebobadilla . Glad I could help!