Method flatten

django/db/models/query_utils.py:156–169

Recursively yield this Q object and all subexpressions, in depth-first order.

(self)

        return clone

    def flatten(self):
        """
        Recursively yield this Q object and all subexpressions, in depth-first
        order.
        """
        yield self
        for child in self.children:
            if isinstance(child, tuple):
                # Use the lookup.
                child = child[1]
            if hasattr(child, "flatten"):
                yield from child.flatten()
            else:
                yield child

    def check(self, against, using=DEFAULT_DB_ALIAS):
        """