def valid_existent_clientID(self, clientID, clients):
exists = False
for it in range(0, len(clients)):
if clients[it].get_cid() == clientID:
exists = True
it = len(clients) + 1
if exists == False:
raise exceptions.validError("client id doesn't exist")
def valid_existent_rentalID(self, rentID, rentals):
exists = False
for it in range(0, len(rentals)):
if rentals[it].get_rid() == rentID:
exists = True
it = len(rentals) + 1
if exists == False:
raise exceptions.validError("rental id doesn't exist")
def valid_existent_BookID(self, bookID, books):
exists = False
for it in range(0, len(books)):
if books[it].get_bid() == bookID:
exists = True
it = len(books) + 1
if exists == False:
raise exceptions.validError("book id doesn't exist")
def validate_client(self, id, client, clients):
errors = ""
for client in clients:
if client.get_cid() == id:
errors += "Client id already exists!"
if client.get_nume() == "":
errors += "invalid name!"
if client.get_cid() < 0:
errors += "id should be >0!! "
if len(errors) > 0:
raise exceptions.validError(errors)
def validate_book(self, id, book, books):
errors = ""
for book in books:
if book.get_bid() == id:
errors += "Book id already exists!"
if book.get_titlu() == "":
errors += "invalid title!"
if book.get_bid() < 0:
errors += "id should be >0 !! "
if book.get_autor() == "":
errors += "invalid author!"
if len(errors) > 0:
raise exceptions.validError(errors)
def valid_rental_for_return(self, rid, bid, cid, rentals):
errors = ""
#for rental in rentals:
# print("return day", rental.get_returnDate())
# print("rent day",rental.get_rentedDate())
# if rental.get_returnDate() < rental.get_rentedDate() :
# errors += "The return day can't be < rent day !!"
for rental in rentals:
if rental.get_returnDate() < 1 and rental.get_returnDate() > 31:
errors += "Return day should be in [1,31]"
if rental.get_bid() != bid:
errors += "The book id should be the same as the rental's one!"
if rental.get_cid() != cid:
errors += "The client id should be the same as the rental's one!"
if len(errors) > 0:
raise exceptions.validError(errors)
def validate_rental(self, rid, bid, rental, rentals):
errors = ""
for rental in rentals:
if rental.get_rid() == rid:
errors += "Rental id already exists!"
for rental in rentals:
if rental.get_bid() == bid and rental.get_returnDate() == int(0):
errors += "Book id is already in a rental!"
if rental.get_rentedDate() < 1 and rental.get_rentedDate() > 31:
errors += "Rent day should be in [1,31]"
if rental.get_cid() < 0:
errors += "invalid client id!"
if rental.get_bid() < 0:
errors += "invalid book id!"
if rental.get_rid() < 0:
errors += "invalid rental id!"
if len(errors) > 0:
raise exceptions.validError(errors)