def editing_the_collection(collection, file_name):
read = input(
"Enter a number of order to be changed (enter 0 not ot change anything):"
)
if represents_int(read):
while collection.get_len() < int(read) or 0 > int(read):
read = input(
"Reenter a number of order to be changed(enter 0 not to change anything)"
)
if int(read) == 0:
pass
else:
to_change_id = int(read)
read = input("Enter an info to be changed\n"
"1 - id\n"
"2 - order status\n"
"3 - amount\n"
"4 - discount\n"
"5 - order date\n"
"6 - shipped date\n"
"7 - customer email\n")
while not Validators.sort_and_changer_validation(int(read)) \
or not represents_int(read):
read = input("Reenter an info to be changed")
to_change_field = choice_to_attr_dict[read]
read = input("Enter new data:")
collection.change2(to_change_id, to_change_field, read, file_name)
def str_to_order(self, line):
line = line.split(", ")
all_is_validated = True
error_list = []
line_iter = 0
for field in self.attr_dict:
validator_name = Validators.validators_of_order_fields[field]
if not getattr(Validators, validator_name)(line[line_iter]):
error_list.append(line_iter)
all_is_validated = False
if line_iter != len(line):
line_iter += 1
if dates_check(line[4], line[5]):
all_is_validated = Validators.two_dates_validation(
line[4], line[5])
if all_is_validated:
dictionary = self.attr_dict.copy()
i = 0
for name in self.attr_dict:
dictionary[name] = line[i].lower()
i += 1
res = Order(dictionary)
return res
else:
for error in error_list:
print(self.error_messages[error])
return 1
def append_to_file(self, file_name, cut):
if Validators.file_exists(file_name):
file = open(file_name, "a")
line = self.make_str_for_file()
if cut:
line = line[:-1]
file.write(line)
else:
print("Error occurred while trying to append to file. File does no exists")
def sort_user_choice():
read = input("Enter a parameter to be sorted by:\n"
"1 - id\n"
"2 - order status\n"
"3 - amount of product bought\n"
"4 - discount\n"
"5 - order date\n"
"6 - shipped date\n"
"7 - customer email\n")
while not Validators.sort_and_changer_validation(read):
read = input()
sort_choice = choice_to_attr_dict[read]
return sort_choice
def read_from_file(self, file_name):
if Validators.file_not_empty(file_name):
f = open(file_name)
lines = f.readlines()
line_number = 0
for i in range(len(lines)):
to_add = Order
line = lines[i]
if i != len(lines) - 1:
line = line[:-1]
# print("line is:", line)
if Order.str_to_order(to_add, line) != 1:
to_add = Order.str_to_order(to_add, line)
self.list_of_orders.append(to_add)
else:
print("Data error in line " + str(i + 1))
line_number += 1
def main():
menu_choice = 0
collection = Collection()
read = input("Enter file name (eg. Text.txt):")
while not Validators.validate_filename(read):
# валідувати змінні неможливо, тому я не знаю як це замінити декоратором
read = input("Reenter file name (eg. Text.txt):")
file_name = read
if Validators.file_not_empty(file_name):
collection.read_from_file(file_name)
collection.print()
while menu_choice != 6:
print(
"You are in main menu. Possible options:\n"
"1 - search some data through all info\n"
"2 - sort collection by some argument\n"
"3 - delete any order(by its number in list) and rewrite collection in file\n"
"4 - add an order and rewrite collection in file\n"
"5 - edit an order and rewrite collection in file\n"
"6 - exit program\n"
"Choose your option: ")
read = input()
while not Validators.menu_choice_and_sort_and_changer_validation(read):
read = input()
menu_choice = int(read)
if menu_choice == 1:
read = input("Enter data to be searched:")
collection.search(read)
elif menu_choice == 2:
sort_choice = sort_user_choice()
collection.sort(sort_choice)
collection.print()
elif menu_choice == 3:
read = input(
"Enter a number of order to be deleted(enter 0 not to delete anything)"
)
if represents_int(read):
while collection.get_len() < int(read) or 0 > int(read):
read = input(
"Reenter a number of order to be deleted(enter 0 not to delete anything)"
)
if int(read) == 0:
break
else:
collection.deleter(int(read), file_name)
collection.print()
elif menu_choice == 4:
print(
"Enter a LINE which is similar to (with a ', ' as a delimiter or enter 0 to skip)\n"
"ID, order_status (paid, refunded, not paid), amount, discount (percentage), "
"order_date, shipped_date, customer_email")
read = input()
if represents_int(read) and int(read) == 0:
pass
else:
to_add = Order
to_add = Order.str_to_order(to_add, read)
collection.add_order(to_add)
collection.rewriting_to_file(file_name)
collection.print()
elif menu_choice == 5:
editing_the_collection(collection, file_name)
collection.print()
elif menu_choice == 6:
print("Have a nice day! Goodbye!")