def __init__(self):
print '\n'
print '**Entering __init__ CD method**'
StockItem.__init__(self)
'''This loop will continuously re-prompt the user to enter the title if it is larger
than 100 characters or has no characters at all. A message will also be displayed on
screen describing the errors.'''
self.title = raw_input('Please enter the title of the CD: ')
while True:
if ExceptionCatcher.nameCheck(self.title) == True:
break
else:
self.title = raw_input('Please enter the title of the CD: ')
'''The user will only be allowed to enter a date in the correct integer format,
otherwise they are caught in a loop forever being re-prompted to enter the date
in the correct format'''
self.dateReleased = raw_input('Please enter the date of release in the following format DDMMYYYY: ')
while True:
if ExceptionCatcher.dateCheck(self.dateReleased) == True:
break
else:
self.dateReleased = raw_input('Please enter the date of release in the following format DDMMYYYY: ')
'''The user is asked to enter one of three genres. They must enter the genre option properly
before they are allowed to proceed.'''
while True:
self.genre = raw_input('Please enter the genre. "rock", "metal", "blues" are the only allowed options: ')
if self.genre == 'rock' or self.genre == 'metal' or self.genre == 'blues':
break
else:
continue
self.artist = raw_input('Please enter the name of the artist: ')
while True:
if ExceptionCatcher.nameCheck(self.artist) == True:
break
else:
self.artist = raw_input('Please enter the name of the artist: ')
def __init__(self, titleStr, dateStr, genreStr, authorStr, clientNameStr, warehouseNumberInt, pricePerUnitFloat):
# print 'Creating a book'
# Initialise the StockItem class.
StockItem.__init__(self, clientNameStr, warehouseNumberInt, pricePerUnitFloat)
# Sets the title, test to make sure its a string and is less than 100 characters.
if isinstance(titleStr, str) == True:
if len(titleStr) <= 100:
self.title = titleStr
else:
self.title = titleStr[:100]
raise StockException('Book', '__init__', 'Title must be less than 100 characters.')
else:
raise StockException('Book', '__init__', 'Title must be a string.')
# Sets the dateReleased, tests to make sure date is in a valid format.
try:
self.dateReleased = datetime.strptime(dateStr, "%d/%m/%Y")
except ValueError:
raise StockException('Book', '__init__', 'Date must be in the format DD/MM/YYYY.')
# Sets the genre, tests to make sure its a string and a valid genre.
if isinstance(genreStr, str) == True:
if genreStr in ['Rock', 'Metal', 'Blues']:
self.genre = genreStr
else:
self.genreStr = 'Rock'
raise StockException('Book', '__init__', 'Genre must be either Rock, Metal or Blues.')
else:
self.genreStr = 'Rock'
raise StockException('Book', '__init__', 'Genre must be a string.')
# Sets the artist, tests to make sure its a string.
if isinstance(authorStr, str) == True:
self.author = authorStr
else:
raise StockException('Book', '__init__', 'Author must be a string.')
