DataStore

DataStore class

The DataStore class implements simple persistent memory for applications. If used in an app, it creates a file in the res/ directory called app_name.ds, which contains JSON text. The class acts like a dict, with values being automatically saved as they are modified. Each app object has a dataStore attribute which lets it access its own DataStore. However, the actual file will not be created until data is written.

DataStore ( Application app )

Accessible via app.dataStore.

Object Variables

• Application application The application object that the DataStore is for.
• str dsPath The path to the file.
• dict data The data in the store. Note that this is only created if a value is read from the store, so always do a "get" operation before writing data.

Methods

• getStore () An internal method that initializes the file.
• saveStore () An internal method that saves the data to the file.
• get ( str key, default=None ) Read a value from the store, returning default if it does not exist.
• set ( str key, value ) Sets a value.

Note that the DataStore class also supports reading and writing via __getitem__ and __setitem__.