Method add

django/core/cache/backends/base.py:127–137

Set a value in the cache if the key does not already exist. If timeout is given, use that timeout for the key; otherwise use the default cache timeout. Return True if the value was stored, False otherwise.

(self, key, value, timeout=DEFAULT_TIMEOUT, version=None)

        return key

    def add(self, key, value, timeout=DEFAULT_TIMEOUT, version=None):
        """
        Set a value in the cache if the key does not already exist. If
        timeout is given, use that timeout for the key; otherwise use the
        default cache timeout.

        Return True if the value was stored, False otherwise.
        """
        raise NotImplementedError(
            "subclasses of BaseCache must provide an add() method"
        )

    async def aadd(self, key, value, timeout=DEFAULT_TIMEOUT, version=None):
        return await sync_to_async(self.add, thread_sensitive=True)(