# Path: utils/database.py
# class Database:
#     """
#     This class handles :
#     - Provides a link and a cursor to the database as class attributes
#     Usage :
#     - Database.on()
#     - Database.CURSOR.execute(query, params)
#     - ... etc
#     - Database.off()
#     Available class attributes :
#     - LINK
#     - CURSOR
#     - FILE (path to the database file)
#     """
#     DATABASE_PRODUCTION = 'database.db'
#     """ Normal database filename """
#     DATABASE_TEST = 'database_test.db'
#     """ Test database filename : this database is temporary """
#     TEST_MODE = False
#     """ Does it need to use the test database ? """
# 
#     @classmethod
#     def on(cls):
#         """
#         Connect to the database
#         :rtype: bool
#         """
#         # Don't reconnect if already connected
#         if cls.is_ready():
#             return False
# 
#         # Filename
#         cls.FILE = cls.DATABASE_PRODUCTION
# 
#         if cls.TEST_MODE:
#             cls.FILE = cls.DATABASE_TEST
# 
#         # Connect
#         cls.LINK = sqlite3.connect(cls.FILE)
#         cls.LINK.row_factory = sqlite3.Row
#         cls.CURSOR = cls.LINK.cursor()
# 
#         return True
# 
#     @classmethod
#     def off(cls):
#         """
#         Ends connection with the database.
#         :rtype: bool
#         """
#         if cls.LINK:
#             cls.LINK.close()
#         cls.LINK = None
#         cls.CURSOR = None
#         return True
# 
#     @classmethod
#     def is_ready(cls):
#         """
#         Is the connection open ?
#         :rtype: bool
#         """
#         return hasattr(cls, 'LINK') and cls.LINK != None


from utils import Database
A Raspberry Pi robot that helps people make their grocery list.
Matteo Cargnelutti - github.com/matteocargnelutti

models/params.py
"""
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
# Params Table class
#-----------------------------------------------------------------------------
class Params:
    """
    This class handles :
    - Manages and interacts with the Params table, which stores config paramaters
    - Loads config parameters as attributes
    Usage :
    - params = Params()
    - params.param_name
    .. OR
    - Params().param_name 
    """
    def __init__(self, autoload=True):
        """
        Constructor
        :param autoload: Automaticaly load parameters as attributes ?
        :rtype: ParamsTable
        """
        # Is the database connexion initialized ?

# Path: utils/database.py
# class Database:
#     """
#     This class handles :
#     - Provides a link and a cursor to the database as class attributes
#     Usage :
#     - Database.on()
#     - Database.CURSOR.execute(query, params)
#     - ... etc
#     - Database.off()
#     Available class attributes :
#     - LINK
#     - CURSOR
#     - FILE (path to the database file)
#     """
#     DATABASE_PRODUCTION = 'database.db'
#     """ Normal database filename """
#     DATABASE_TEST = 'database_test.db'
#     """ Test database filename : this database is temporary """
#     TEST_MODE = False
#     """ Does it need to use the test database ? """
# 
#     @classmethod
#     def on(cls):
#         """
#         Connect to the database
#         :rtype: bool
#         """
#         # Don't reconnect if already connected
#         if cls.is_ready():
#             return False
# 
#         # Filename
#         cls.FILE = cls.DATABASE_PRODUCTION
# 
#         if cls.TEST_MODE:
#             cls.FILE = cls.DATABASE_TEST
# 
#         # Connect
#         cls.LINK = sqlite3.connect(cls.FILE)
#         cls.LINK.row_factory = sqlite3.Row
#         cls.CURSOR = cls.LINK.cursor()
# 
#         return True
# 
#     @classmethod
#     def off(cls):
#         """
#         Ends connection with the database.
#         :rtype: bool
#         """
#         if cls.LINK:
#             cls.LINK.close()
#         cls.LINK = None
#         cls.CURSOR = None
#         return True
# 
#     @classmethod
#     def is_ready(cls):
#         """
#         Is the connection open ?
#         :rtype: bool
#         """
#         return hasattr(cls, 'LINK') and cls.LINK != None


# Path: models/params.py
from utils import Database

A Raspberry Pi robot that helps people make their grocery list.
Matteo Cargnelutti - github.com/matteocargnelutti

models/params.py
"""
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
# Params Table class
#-----------------------------------------------------------------------------
class Params:
    """
    This class handles :
    - Manages and interacts with the Params table, which stores config paramaters
    - Loads config parameters as attributes
    Usage :
    - params = Params()
    - params.param_name
    .. OR
    - Params().param_name 
    """
    def __init__(self, autoload=True):
        """
        Constructor
        :param autoload: Automaticaly load parameters as attributes ?
        :rtype: ParamsTable
        """
        # Is the database connexion initialized ?

        if not Database.is_ready():