Method _fixture

test/orm/test_cascade.py:3655–3715

(
        self,
        legacy_is_orphan,
        persistent,
        r1_present,
        r2_present,
        detach_event=True,
    )

        )

    def _fixture(
        self,
        legacy_is_orphan,
        persistent,
        r1_present,
        r2_present,
        detach_event=True,
    ):
        class Core:
            pass

        class RelatedOne:
            def __init__(self, cores):
                self.cores = cores

        class RelatedTwo:
            def __init__(self, cores):
                self.cores = cores

        self.mapper_registry.map_imperatively(
            Core, self.tables.core, legacy_is_orphan=legacy_is_orphan
        )
        self.mapper_registry.map_imperatively(
            RelatedOne,
            self.tables.related_one,
            properties={
                "cores": relationship(
                    Core, cascade="all, delete-orphan", backref="r1"
                )
            },
        )
        self.mapper_registry.map_imperatively(
            RelatedTwo,
            self.tables.related_two,
            properties={
                "cores": relationship(
                    Core, cascade="all, delete-orphan", backref="r2"
                )
            },
        )
        c1 = Core()
        if detach_event:
            RelatedOne(cores=[c1])
            RelatedTwo(cores=[c1])
        else:
            if r1_present:
                RelatedOne(cores=[c1])
            if r2_present:
                RelatedTwo(cores=[c1])

        if persistent:
            s = fixture_session()
            s.add(c1)
            s.flush()

        if detach_event:
            if not r1_present:
                c1.r1 = None