Issue with nested self-referencing schemas about apispec

[lafrech]

From a very quick look, I have the feeling you're comparing a schema class/instance and a name. Should it be something more like this?

if resolve_schema_cls(value.nested).__name__ == schema_name:

or perhaps even

if resolve_schema_cls(value.nested) == resolve_schema_cls(schema):

[mouadennasri]

@lafrech thank you for the quick feedback! but sadly that didn't solve the issue, the ApiSpec.refs is empty and it raises:

    ref_schema = self.spec.components.get_ref("schema", self.refs[schema_key])
KeyError: (<class 'api.insights.serializers.base.FilterSchema'>, None, frozenset(), frozenset(), frozenset(), False)

These are some debug outputs:

(Pdb) self.refs
{}
(Pdb) schema_key
(<class 'api.insights.serializers.base.FilterSchema'>, None, frozenset(), frozenset(), frozenset(), False)
(Pdb) self.spec.components.to_dict()
{
    "schemas": {
        "FilterSchema": {
            "type": "object",
            "properties": {
                "next_filter": {
                    "nullable": True,
                    "allOf": [{"$ref": "#/components/schemas/FilterSchema"}],
                },
                "filter_type": {
                    "type": "string",
                    "enum": [
                        "Filter",
                        "IsFinishedFilter",
                    ],
                },
                "params": {
                    "type": "array",
                    "nullable": True,
                    "items": {"nullable": True},
                },
                "operator_class": {
                    "type": "string",
                    "enum": [
                        "QueryOp",
                        "AndOperator",
                    ],
                },
                "legacy_filter": {"type": "object"},
                "auction_id": {
                    "type": "array",
                    "nullable": True,
                    "items": {"type": "string"},
                },
                "filter_join": {
                    "type": "string",
                    "enum": [
                        "QueryOp",
                        "AndOperator"
                    ],
                },
            },
            "required": ["filter_type", "operator_class"],
        }
    }
}
(Pdb) self.spec.components.get_ref("schema", "FilterSchema")
{'$ref': '#/components/schemas/FilterSchema'}