def validateRental(ghostBook, ghostClient):
inBookList = False
repoCaller = Repo()
listOfBooks = repoCaller.getListOfBooks()
listOfRentedBooks = repoCaller.getListOfRentals()
listOfClients = repoCaller.getListOfClients()
for iterator in listOfBooks:
if Book.getBookId(iterator) == Book.getBookId(ghostBook):
inBookList = True
break
if inBookList == False:
raise BookAlreadyRentedOrDoesntExistError
# bookIsRented=True
for books in listOfRentedBooks:
if Book.getBookId(ghostBook) == Rental.getBookId(
books) and Rental.getReturnDate(books) == "notRented":
for iterator in listOfRentedBooks:
if Book.getBookId(iterator) == Book.getBookId(ghostBook):
raise BookAlreadyRentedOrDoesntExistError
clientFound = False
for iterator in listOfClients:
if Client.getClientId(iterator) == Client.getClientId(ghostClient):
clientFound = True
if clientFound == False:
raise ClientAlreadyExistsError
def listRentedBooks(commandInPieces):
repoCaller = Repo()
listOfRentedBooks = repoCaller.getListOfRentals()
s = "Rented: \n"
for iterator in listOfRentedBooks:
s += Rental.printRental(iterator)
return s
def returnABook(commandInPieces):
repoCaller = Repo()
idBook = commandInPieces[1]
idClient = commandInPieces[2]
returnDateString = commandInPieces[3].split('/')
returnDate = datetime.datetime(int(returnDateString[0]),
int(returnDateString[1]),
int(returnDateString[2]))
listOfRentedBooks = repoCaller.getListOfRentals()
for iterator in listOfRentedBooks:
if Rental.getBookId(iterator) == idBook and Rental.getClientId(
iterator) == idClient:
Rental.setReturnDate(iterator, returnDate)
repoCaller.loadIntoFiles()
repoCaller.loadIntoPickle()
return False
def showStatistics(null):
repoCaller = Repo()
listOfRentedBooks = repoCaller.getListOfRentals()
mostRentedBooks = repoCaller.getListOfMostRentedBooks()
mostRentedAuthors = repoCaller.getListOfMostRentedAuthors()
mostActiveClients = repoCaller.getListOfMostActiveClients()
listOfBooks = repoCaller.getListOfBooks()
listOfClients = repoCaller.getListOfClients()
booksStatistics = "Books statistic:\n"
authorStatistics = "Author statistics:\n"
clientsStatistics = "Clients statistics:\n"
for rentedBooks in listOfRentedBooks:
try:
mostRentedAuthors[Rental.getBookId(rentedBooks)] += 1
except KeyError:
mostRentedAuthors[Rental.getBookId(rentedBooks)] = 1
for rentedBooks in listOfRentedBooks:
try:
mostRentedBooks[Rental.getBookId(rentedBooks)] += 1
except KeyError:
mostRentedBooks[Rental.getBookId(rentedBooks)] = 1
mostRentedAuthorsList = sorted(mostRentedAuthors.items(),
key=lambda x: x[1],
reverse=True)
mostRentedBooksList = sorted(mostRentedBooks.items(),
key=lambda x: x[1],
reverse=True)
for rentedBooks in mostRentedBooksList:
booksStatistics += "Id of book: " + str(
rentedBooks[0]) + " Rented: " + str(
rentedBooks[1]) + " times" + "\n"
for rentedBooks in mostRentedAuthorsList:
for books in listOfBooks:
if (Book.getBookId(books) == rentedBooks[0]):
authorStatistics += "Author: " + str(
Book.getBookAuthor(books)) + " Rented: " + str(
rentedBooks[1]) + " times" + "\n"
for client in listOfClients:
total = 0
for rent in listOfRentedBooks:
if Client.getClientId(client) == Rental.getClientId(
rent) and rent.getReturnDate() != "notReturned":
difference = Rental.getReturnDate(rent) - Rental.getRentDate(
rent)
total += difference.total_seconds() / 86400
try:
mostActiveClients[Client.getClientName(client)] += total
except KeyError:
repoCaller.addToMostActiveClients(client, total)
mostActiveClientsList = sorted(mostActiveClients.items(),
key=lambda x: x[1],
reverse=True)
for client in mostActiveClientsList:
clientsStatistics += "Name: " + str(
client[0]) + " Total rental days: " + str(client[1]) + "\n"
return [booksStatistics, authorStatistics, clientsStatistics]
