def test_cached_values_are_properly_updated(self):
setting_key = "key"
setting_old_value = "old value"
setting_new_value = "new value"
# First, let's create a ConfigurationSetting instance and save it in the database.
setting = ConfigurationSetting(key=setting_key, _value=setting_old_value)
self._db.add(setting)
self._db.commit()
# Let's save ConfigurationSetting's ID to find it later.
setting_id = setting.id
# Now let's fetch the configuration setting from the database and add it to the cache.
db_setting1 = (
self._db.query(ConfigurationSetting)
.filter(ConfigurationSetting.key == setting_key)
.one()
)
ConfigurationSetting.cache_warm(self._db, lambda: [db_setting1])
# After, let's fetch it again and change its value.
db_setting2 = (
self._db.query(ConfigurationSetting)
.filter(ConfigurationSetting.key == setting_key)
.one()
)
db_setting2.value = setting_new_value
# Now let's make sure that the cached value has also been updated.
assert (
ConfigurationSetting.by_id(self._db, setting_id)._value == setting_new_value
)
def test_cached_value_deleted(self):
# Get setting
setting = ConfigurationSetting.sitewide(self._db, "test")
setting.value = "testing"
# Delete setting
self._db.delete(setting)
# we should no longer be able to get setting from cache
cached = ConfigurationSetting.by_id(self._db, setting.id)
cache = ConfigurationSetting._cache_from_session(self._db)
assert cached is None
assert len(cache.id) == 0
assert len(cache.key) == 0