def books_add():
form = BookCreateForm()
if form.validate_on_submit():
book = Book()
book.inv_number = form.inv_number.data
book.signature = form.signature.data
book.title = form.title.data
book.author = form.author.data
db.session.add(book)
db.session.flush()
EventWriter.write(
EventType.book_add, book.id,
_g('Following book is added') + ' (' + _g('Book id') + ': ' +
str(book.id) + '):' + book.log_data())
db.session.commit()
flash(_g('Book is successfully added') + '.', 'success')
return redirect(url_for('books.bookss'))
return render_template('books_cu.html', form=form, is_creating=True)
def book_rent(member_id):
member = Member.query.get_or_404(member_id)
if member.is_membership_expired or member.number_of_rented_books >= MAX_RENTED_BOOKS:
abort(405)
message = None
form = RentForm()
if form.search.data and form.validate():
book_inv = to_value = FieldValidator.convert_and_validate_number(
form.inv_number)
if book_inv:
book = Book.query.filter(Book.inv_number == book_inv).first()
form.inv_number.data = book_inv
if book:
form.signature.data = book.signature
form.title.data = book.title
form.author.data = book.author
if book.is_rented:
message = _g('Book with this inventory number') + ' ' + _g(
'is already rented'
) + '. ' + _g(
'Please check your inventory number and then continue'
) + '.'
else:
form.signature.data = None
form.title.data = None
form.author.data = None
message = _g('Book with this inventory number') + ' ' + _g(
'was not found')
elif form.submit.data and form.validate():
failed_1 = not FieldValidator.convert_and_validate_number(
form.inv_number)
failed_2 = not FieldValidator.validate_required_field(
form, form.signature, [signature_cust, length_cust_max_15])
failed_3 = not FieldValidator.validate_required_field(
form, form.title, [string_cust, length_cust_max])
failed_4 = not FieldValidator.validate_required_field(
form, form.author, [string_cust, length_cust_max])
date_value = FieldValidator.convert_and_validate_date(
form.date_rented, False,
(date.today() -
timedelta(RENTAL_DATE_LIMIT)).strftime(DATE_FORMAT))
if not (failed_1 or failed_2 or failed_3 or failed_4
or date_value == None):
book_id = None
rented_book = None
book_duplicate = Book.query.filter(
Book.inv_number == form.inv_number.data).first()
if book_duplicate and not book_duplicate.is_rented:
book_id = book_duplicate.id
book_duplicate.is_rented = True
rented_book = book_duplicate
flash(
_g('Book with this inventory number') + ' ' +
_g('already exists') + '.', 'info')
else:
new_book = Book()
new_book.inv_number = form.inv_number.data
new_book.signature = form.signature.data
new_book.title = form.title.data
new_book.author = form.author.data
new_book.is_rented = True
if book_duplicate and book_duplicate.is_rented:
book_duplicate.has_error = True
new_book.has_error = True
flash(
_g('Book with this inventory number') + ' ' +
_g('is already rented') + '! ' +
_g('An error flag is set to the books with same inventory number'
) + '.', 'warning')
db.session.add(new_book)
db.session.flush()
if new_book.has_error:
EventWriter.write(
EventType.book_error_add, new_book.id,
_g('An error is set to the following book') + ' (' +
_g('Book id') + ': ' + str(new_book.id) + '):' +
new_book.log_data())
EventWriter.write(
EventType.book_add, new_book.id,
_g('Following book is added') + ' (' + _g('Book id') +
': ' + str(new_book.id) + '):' + new_book.log_data())
db.session.commit()
book_id = new_book.id
rented_book = new_book
flash(_g('Book is successfully added') + '.', 'info')
rental = Rental()
rental.date_performed = date_value
rental.date_deadline = date_value + timedelta(BOOK_RENT_PERIOD)
rental.book_id = book_id
rental.member_id = member_id
db.session.add(rental)
member.number_of_rented_books = db.session.query(
func.count(Rental.id)).filter(
and_(Rental.member_id == member_id,
Rental.is_terminated == False)).scalar()
member.total_books_rented = db.session.query(func.count(
Rental.id)).filter(Rental.member_id == member_id).scalar()
EventWriter.write(
EventType.rent_rent, rented_book.id,
_g('Following book') + ' (' + _g('Book id') + ': ' +
str(rented_book.id) + '):' + rented_book.log_data() + '<br/>' +
_g('Is rented to following member') + ' (' + _g('Member id') +
' ' + str(member.id) + '):' + member.log_data())
db.session.commit()
flash(_g('Book is successfully rented') + '.', 'info')
return redirect(
url_for('members.members_details', member_id=member_id))
return render_template('renting.html', form=form, message=message)