我正在尝试修复一些方法，例如在我的公共图书馆系统中“还原备份”。但是我已经坚持了好几个星期。下面的代码，但很多。我希望阅读起来不那么复杂。
主要思想和目的是将代码保存和存储在JSON文件中。指令编写如下，一次运行一种方法。因此，我尝试制作一本新书，例如将其存储在JSON文件中。代码已编写，但我似乎无法使备份+恢复功能正常工作。
我尝试基本上为它编写新方法
"""TODO:
Done - filling the system with books from a file of books in JSON format (file with books). You may add a fake ISBN number to book items and generate the number of book items per book.
Done - filling the system with customers from a file of people ( file).
Done - adding a book item.
Done - adding a customer.
Done - searching a book.
Done - making a book loan.
Done - making a backup of the system in JSON format.
Not Done - restoring the system from a backup.
"""
import json
import csv
"""
Created class 'Book' for adding a new book,
Returning the new dict() back to the class 'bookItems'
where it will be added to the bookcollection
"""
class Book:
@staticmethod
def createBook(FileBookcollection):
#parameters is for the inputUser. So it shows the right text for the user
parameters = ["author","country","imageLink","language","link","pages","title","year"]
newBook = dict()
for item in parameters:
inputUser = input("Fill in the " + item + " of the book: ")
if inputUser == "":
newBook[item] = None
else:
#adding the parameters as key and inputUser as value to the dict newBook
newBook[item] = inputUser
#Adding ISBN to the Dict with a counter that counts the Len(Dict) + 1
newBook["ISBN"] = str(len(FileBookcollection) + 1)
return newBook
class bookItems:
def __init__(this,JSONFileBookCollection):
this.JSONFileBookCollection = JSONFileBookCollection
#Adding ISBN to the Dict with a counter that counts the Len(Dict) + 1
#every row has a unique ISBN in total list
numberCounter = 0
for book in JSONFileBookCollection:
numberCounter += 1
book["ISBN"] = str(numberCounter)
def createBook(this):
newBook = Book.createBook(this.JSONFileBookCollection)
this.JSONFileBookCollection.append(newBook)
"""Method that will be called from the class 'Catalog' to show all the books"""
def getAllBooks(this):
return this.JSONFileBookCollection
"""
def restoreBooksBackup(this):
with open(r".\bookCollectionBackup.json") as jsonFile:
bookList = json.load(jsonFile)
this.JSONFileBookCollection = bookList
"""
class Catalog:
def __init__(this, dumbJSON):
this.dumbJSON = dumbJSON
def getAllBooks(this):
return this.dumbJSON.getAllBooks()
def showAllBooks(this):
for book in this.dumbJSON.getAllBooks():
for itemsBooks in book:
print(itemsBooks," : ", book[itemsBooks])
print("\n--------------------------------------------------------------\n")
def getBookByLang(this):
booksByLang = []
userInput = input("What language is the book in?" )
for book in this.dumbJSON.getAllBooks():
if book["language"] == userInput:
booksByLang.append(book)
for results in booksByLang:
print(results)
def getBooksByAuthor(this):
booksByAuthor = []
userInput = input("What author is the book from?")
for book in this.dumbJSON.getAllBooks():
if book["author"] == userInput:
booksByAuthor.append(book)
for results in booksByAuthor:
print(results)
def getBooksByTitle(this):
booksByTitle = []
userInput = input("What's the title from the book?")
for book in this.dumbJSON.getAllBooks():
if book["title"] == userInput:
booksByTitle.append(book)
for results in booksByTitle:
print(results)
def getBooksByISBN(this):
booksByISBN = []
userInput = input("What's the ISBN number?")
for book in this.dumbJSON.getAllBooks():
if book["ISBN"] == userInput:
booksByISBN.append(book)
for results in booksByISBN:
print(results)
def restoreBooksBackup(this):
this.dumbJSON.restoreBooksBackup()
"""
"""
class Person:
def __init__(this, personsList):
this.personsList = personsList
def addPerson(this):
parameters = ["Number", "Gender", "NameSet", "GivenName", "Surname", "StreetAddress", "ZipCode", "City", "EmailAddress", "Username", "TelephoneNumber"]
newPerson = list()
newCustomer = dict()
for item in parameters:
inputUser = input("Fill in the " + item + " of the customer: ")
if inputUser == "":
newPerson.append(None)
else:
newPerson.append(inputUser)
this.personsList.append(newPerson)
def getAllPersons(this):
return this.personsList
def restorePersonsListBackup(this):
with open(r".\backupFakeNames.csv","r") as output:
new_csv = csv.reader(output)
totalPersonListBackup = []
for line in new_csv:
totalPersonListBackup.append(line)
this.personsList = totalPersonListBackup
class Customer:
def __init__(this, allPersonsInfo,userNames, CustomerList):
this.CustomerList = CustomerList
this.allPersonsInfo = allPersonsInfo
this.userNames = userNames
counter = 0
#Repeat itself 20 times but not sure how to debug that. It works for now but could be fixed later
for person in this.allPersonsInfo.getAllPersons():
this.CustomerList[userNames[counter]] = person
counter +=1
def getAllCustomers(this):
return this.CustomerList
def showAllPersonsInfo(this):
for username in this.userNames:
print(this.CustomerList[username])
print("\n")
def getAllPersonsInfo(this):
return this.allPersonsInfo.getAllPersons()
def getAllUserNames(this):
return this.userNames
def restorePersonsListBackup(this):
this.allPersonsInfo.restorePersonsListBackup()
class administration:
def __init__(this, bookCollection, AllCustomers, loanBookList):
this.AllCustomers = AllCustomers
this.bookCollection = bookCollection
this.loanBookList = loanBookList
this.allPersonsInfo = AllCustomers.getAllPersonsInfo()
for book in this.bookCollection.getAllBooks():
this.loanBookList[book["ISBN"]] = None
def setLoanBookPerson(this, isbnCode, customerUsername):
if customerUsername in this.AllCustomers.getAllUserNames():
if isbnCode in this.loanBookList.keys():
if this.loanBookList[isbnCode] != None:
print("This book is already used:")
else:
this.loanBookList[isbnCode] = customerUsername
for book in this.bookCollection.getAllBooks():
if book["ISBN"] == isbnCode:
print(customerUsername,"loan book by title:",book["title"])
else:
print("isbn code does not exist!")
else:
print("Username does not exist!")
def setLoanBookNobody(this, isbnCode):
if int(isbnCode) > len(this.loanBookList):
print("Wrong isbn code, type BookLoanedToPerson.showAllIsbnCodes() to check all the isbn codes ")
else:
this.loanBookList[isbnCode] = None
def showAllAvailableBooks(this):
for book in this.loanBookList:
if this.loanBookList[book] == None:
print("\nThis book is available for loan: ", book)
def showAllIsbnCodes(this):
for code in this.loanBookList.keys():
print("isbn code: " + code)
def makeBackup(this):
with open(r".\backupFakeNames.csv","w",newline="") as output:
new_csv = csv.writer(output)
new_csv.writerows(this.allPersonsInfo)
with open(r".\bookCollectionBackup.json","w") as jsonFile:
json.dump(this.bookCollection.getAllBooks(),jsonFile)
with open(r".\loanbookListBackup.json","w") as jsonFile:
json.dump(this.loanBookList,jsonFile)
def restoreBackUp(this):
pass
"""
with open(r".\bookCollectionBackup.json") as jsonFile:
bookList = json.load(jsonFile)
this.bookCollection.dumbJSON.JSONFileBookCollection = bookList
with open(r".\backupFakeNames.csv","r") as output:
new_csv = csv.reader(output)
totalPersonListBackup = []
for line in new_csv:
totalPersonListBackup.append(line)
this.AllCustomers.allPersonsInfo.personsList = totalPersonListBackup
#this.bookCollection.restoreBooksBackup()
with open(r".\loanbookListBackup.json") as jsonFile:
fileLoanBookBackup = json.load(jsonFile)
this.loanBookList = fileLoanBookBackup
"""
if __name__=="__main__":
reader = csv.reader(open('FakeNameSet20.csv', 'r'))
totalPersonList = []
userNameList = []
PreMadeCustomerDict = dict()
for line in reader:
userNameList.append(line[9])
totalPersonList.append(line)
"""PersonalInfoAllpeople exist of list with list of all info over books """
PersonalInfoAllpeople = Person(totalPersonList)
CustomerList = Customer(PersonalInfoAllpeople, userNameList,PreMadeCustomerDict)
with open('booksset1.json') as jsonFile:
bookList = json.load(jsonFile)
bookCollection = bookItems(bookList)
booksCatalog = Catalog(bookCollection)
emptyDict = dict()
BookLoanedToPerson = administration(booksCatalog,CustomerList,emptyDict)
"""-----------------------------------------------------------------------------------"""
#Examples of wrong input:
BookLoanedToPerson.setLoanBookPerson("200","kaas")
BookLoanedToPerson.setLoanBookPerson("200","Reech1950")
#Example of putting a ISBN code & username so that person will loan that book
BookLoanedToPerson.setLoanBookPerson("2","Reech1950")
#Example of person delivering book back. Where only the isbn code needs to be given
BookLoanedToPerson.setLoanBookNobody(2)
#Example of searching for a ISBN code. It will give a input where you need to fillin a correct isbn code
booksCatalog.getBooksByISBN()
"""
How to add a new book to library:
bookCollection.createBook()
How to show all the books that is in posession of the library:
booksCatalog.showAllBooks()
How to show all Persons:
CustomerList.showAllPersonsInfo()
How to add a new customer:
PersonalInfoAllpeople.addPerson()
How to search for available books in the library:
BookLoanedToPerson.showAllAvailableBooks()
How to set certain book on loan:
BookLoanedToPerson.setLoanBookPerson(isbn-code,Username)
BookLoanedToPerson.setLoanBookPerson("1","Ancion")
How to set a backup from all the data
BookLoanedToPerson.makeBackup()
How to show all the books that's by Language.
booksCatalog.getBookByLang()
How to show all the isbn codes:
BookLoanedToPerson.showAllIsbnCodes()
"""
没有显示错误消息