def borrowISBN(self, isbn):
"""
A function created to borrow a book based on its ISBN
Args:
isbn: string of the isbn of the book looking to be borrowed
"""
if self.validator.validateISBN(isbn):
if self.validator.isbnExists(isbn):
if self.validator.onLoan(self.username, isbn):
print("You can not borrow this book again.\n")
else:
currentdate = datetime.now()
dueDate = currentdate.date() + timedelta(days=7)
eventID = self.calendar.createCalendarEvent(
isbn, self.username)
with DatabaseUtils() as db:
if (db.insertBorrow(isbn, self.username, eventID)):
print("Book ISBN {} sucessfully borrowed by {}.".
format(isbn, self.username))
print("Due date is: " +
dueDate.strftime(DATE_FORMAT))
print("A event has been set in our GoogleCalendar")
else:
self.calendar.removeCalendarEvent(
isbn, self.username)
print("Book unsucessfully borrowed due")
def returnBook(self, isbn):
"""A function created to return a book based on its ISBN
Args:
isbn: string of the isbn of the book looking to be borrowed
"""
if self.validator.validateISBN(isbn):
if self.validator.isbnExists(isbn):
if self.validator.onLoan(self.username, isbn):
eventID = None
with DatabaseUtils() as db:
eventID = db.updateReturnDate(isbn, self.username)
if eventID is not None:
print(
"Book ISBN {} sucessfully returned by {}.".format(
isbn, self.username))
self.calendar.removeCalendarEvent(isbn, self.username)
print("EventID {} successfully remove".format(eventID))
else:
print(
"Book unsucessfully returned by {} due to db error"
.format(self.username))
else:
print("You did not borrow Book ISBN {}".format(isbn))
print("Please return another book")
def __init__(self, username, config):
self.username = username
self.validator = Validator()
self.calendar = CalendarUtils(config['gc']['credentials_path'])
self.voice = VoiceSearchUtils()
self.QR = QR()
with DatabaseUtils() as db:
db.createBookTable()
db.createBorrowTable()
db.insertSampleBook()
def searchBookByAuthor(self):
"""A function created to search for a book by Author
Returns:
True or False based on printList function
"""
self.printSection("SEARCH BY AUTHOR")
author = self.getSearchInput("Author: ")
if self.validator.validateAuthor(author):
with DatabaseUtils() as db:
return self.printList("search results",
"all search results", BOOK_HEADERS,
db.getBooksByAuthor(author))
def searchBookByTitle(self):
"""A function created to search for a book by Title
Returns:
True or False based on printList function
"""
self.printSection("SEARCH BY TITLE")
title = self.getSearchInput("Title: ")
if self.validator.validateTitle(title):
with DatabaseUtils() as db:
return self.printList("search results", "all search results",
BOOK_HEADERS, db.getBooksByTitle(title))
def searchBookByISBN(self):
"""
A function created to search for a book by ISBN
Returns:
True or False based on printList function
"""
self.printSection("SEARCH BY ISBN")
isbn = self.getSearchInput("ISBN: ")
if self.validator.validateISBN(isbn):
with DatabaseUtils() as db:
return self.printList("search results", "all search results",
BOOK_HEADERS, db.getBookByISBN(isbn))
def isbnExists(self, isbn):
"""
A function to check that the isbn exists in the library
Args:
isbn: string to be checked
Returns:
True is the isbn exists
False if it doesnt exist
"""
# check if isbn exits in the database
with DatabaseUtils() as db:
if not db.getBookByISBN(isbn):
print("Book ISBN {} does not exist".format(isbn))
print("Please try again")
return False
else:
return True
def onLoan(self, username, isbn):
"""
A function to check if the user has the isbn book on loan
Args:
username: string to check records against
isbn: string to check records against
Returns:
True is the book is on loan to this user
False if it isnt
"""
# check if the user has not returned the book
with DatabaseUtils() as db:
currentLoan = db.stillOnLoan(username, isbn)
if currentLoan is not None:
print("You are currently borrowing book ISBN {}".format(isbn))
print("Book ISBN {} was borrowed on {}".format(
isbn, currentLoan[0]))
print("It will be due on {}".format(currentLoan[1]))
return True
else:
return False
def listBorrowsByUser(self):
"""A function to list the books borrowed by the user"""
with DatabaseUtils() as db:
self.printList("user borrow records", "your borrow records",
BORROW_HEADERS,
db.getBorrowsByUsername(self.username))
def listBooks(self):
"""A function to list the books"""
with DatabaseUtils() as db:
self.printList("books", "all books", BOOK_HEADERS, db.getBooks())