def save_value(self, app_id, key, subkey, value):
'''
Saves a value in the database.
Creates the needed references of key and app if needed.
@param app_id: string The identification of the requesting app
@param key: string The key that will identify all given values
@param subkey: string The subkey that identifies this specific value
@param value: string Value to store
@raise TypeProviderError: Notifies that the given key matches with another ResourceType
'''
app = App.get_by(name=app_id)
if app == None:
app = App(name=app_id)
key_db = Key.get_by(name=key,app_name=app_id)
if key_db == None:
key_db = Key(name=key,app=app, type_name=self.providerType)
if key_db.type_name != self.providerType:
raise TypeProviderError(self.providerType, key_db.type_name)
value_db = Value()
value_db.key = key_db
value_db.subkey = subkey
value_db.value = value
session.commit()
def get_provider_name(app, key):
'''
Gets the Provider id from an app key
'''
key_stored = Key.get_by(app_name = app, name = key)
if key_stored == None:
raise NotExistingProviderError()
return key_stored.type_name
def get_key(self, app, key):
'''
Gets a model.Key object from the database.
@param app: string App id
@param key: string Key name
@return: model.Key
'''
return Key.get_by(app_name = app, name = key)
def remove_key(self, app_id, key):
'''
Removes a key and all their values stored in the database.
@param app_id: string The identification of the requesting app_id
@param key: string The key that is going to be erased
'''
key_db = Key.get_by(name = key, app_name = app_id)
for value in key_db.values:
value.delete()
key_db.delete()
session.commit()
