halo.DataStore module

Handles the data storage and retrieval.

class halo.DataStore.DataStore(db_location='/home/cijo/.halo/database.sqlite')

Bases: object

sqlite3 database class that store user data and app settings.

add_city(params)

Adds the city to db if it doesn’t exists.

Parameters:params – a tuple of city and country code

static get_api_key()

Retrieves the api key

Returns:API key

static get_bg_file()

Retrieves the background image path.

Returns:image file path

get_cities()

Get a list of all the cities

Returns:list of city name and country codes.

static get_height()

Retrieves the screen height.

static get_width()

Retrieves the screen width.

refresh_preference()

Loads latest preference values from db

screen(width, height)

Save the screen width and height to the db.

Parameters:

• width – Width of screen.
• height – Height of screen.

set_api_key(key)

Writes the new API key if it’s valid.

Parameters:key – API key

set_bg_file(file_name)

Writes the new background image path if it exists.

Parameters:file_name – file path

halo.DataStore.query(fn)

A decorator which ensures if a database lock ever happen, then sqlite query is retired seamlessly.