def __getReadersByBook(self):
searchMenu = CUI('Readers of the book')
self.currentMenu = searchMenu
try:
book_id = int(input('Enter book id: '))
if not (isinstance(book_id, int) and book_id > 0):
raise Exception('Invalid input')
startTime = time.time()
allRecords = self.searchController.getReadersByBook(book_id)
endTime = time.time()
searchMenu.setError('\nElapsed time: ' +
str(endTime - startTime)[:9] + 's'
'\nRows num: ' + str(len(allRecords)))
searchMenu.addField('<Book id> | Reader name | Reader surname')
for record in allRecords:
searchMenu.addField(f"<{record[0]}> {record[1]} {record[2]}")
except Exception as err:
searchMenu.setError(str(err))
searchMenu.run('Return to prev menu')
def __getSomeExemplars(self):
searchMenu = CUI('Exemplars which id less than input value')
self.currentMenu = searchMenu
try:
exemplar_id = int(input('Input value of id: '))
if not (isinstance(exemplar_id, int) and exemplar_id > 0):
raise Exception('Invalid input')
startTime = time.time()
allRecords = self.searchController.getSomeExemplars(exemplar_id)
endTime = time.time()
searchMenu.setError('\nElapsed time: ' +
str(endTime - startTime)[:9] + 's'
'\nRows num: ' + str(len(allRecords)))
searchMenu.addField('<Exemplar id> | Book id | Reader id ')
for record in allRecords:
searchMenu.addField(f"<{record[0]}> {record[1]} {record[2]} ")
except Exception as err:
searchMenu.setError(str(err))
searchMenu.run('Return to prev menu')
def __getBooksByReader(self):
searchMenu = CUI('Books which read by reader')
self.currentMenu = searchMenu
try:
reader_id = int(input('Enter book id: '))
if not (isinstance(reader_id, int) and reader_id > 0):
raise Exception('Invalid input')
startTime = time.time()
allRecords = self.searchController.getBooksByReader(reader_id)
endTime = time.time()
searchMenu.setError('\nElapsed time: ' +
str(endTime - startTime)[:9] + 's'
'\nRows num: ' + str(len(allRecords)))
if self.page < math.ceil(len(allRecords) / self.per_page):
searchMenu.addField(
'NEXT', lambda: self.__changePageParams(
self.page + 1, self.per_page))
if self.page > 1:
searchMenu.addField(
'PREV', lambda: self.__changePageParams(
self.page - 1, self.per_page))
searchMenu.addField('<ID> | Book name | Publishing | Year')
for record in allRecords:
searchMenu.addField(
f"<{record[0]}> {record[1]} {record[2]} {record[3]}")
except Exception as err:
searchMenu.setError(str(err))
searchMenu.addField('Return to prev menu', lambda: self.__exitMenu())
searchMenu.run(False)
def __getReaders(self):
readersMenu = CUI('Readers')
self.currentMenu[0] = readersMenu
try:
if self.page < math.ceil(self.readerController.getCount() / self.per_page):
readersMenu.addField('NEXT', lambda: self.__changePageParams(self.page + 1, self.per_page))
if self.page > 1:
readersMenu.addField('PREV', lambda: self.__changePageParams(self.page - 1, self.per_page))
readers = self.readerController.getAll(self.page, self.per_page)
for reader in readers:
readersMenu.addField(f"<{reader.reader_id}>{reader.name}", lambda reader_id=reader.reader_id: self.__getReader(reader_id))
except Exception as err:
readersMenu.setError(str(err))
readersMenu.run('Return to main menu')
def __getReader(self, id: int):
readerMenu = CUI('Reader menu')
self.currentMenu[1] = readerMenu
try:
reader: Reader = self.readerController.getById(id)
values = reader.getValues().split(',')
keys = reader.getKeys().split(',')
for i in range(len(keys)):
if i == 0:
continue
readerMenu.addField(keys[i] + ' : ' + values[i])
readerMenu.addField('DELETE', lambda: self.__deleteReader(reader.reader_id))
readerMenu.addField('UPDATE', lambda: self.__updateReader(reader.reader_id))
readerMenu.addField('Return to prev menu', lambda: self.__supportCUIFunc())
except Exception as err:
readerMenu.setError(str(err))
readerMenu.run(False)
def __getBook(self, id: int):
bookMenu = CUI('Book menu')
self.currentMenu[1] = bookMenu
try:
book: Book = self.bookController.getById(id)
values = book.getValues().split(',')
keys = book.getKeys().split(',')
for i in range(len(keys)):
bookMenu.addField(keys[i] + ' : ' + values[i])
bookMenu.addField('DELETE',
lambda: self.__deleteBook(book.book_id))
bookMenu.addField('UPDATE',
lambda: self.__updateBook(book.book_id))
bookMenu.addField('Return to prev menu',
lambda: self.__supportCUIFunc())
except Exception as err:
bookMenu.setError(str(err))
bookMenu.run(False)
def __getExemplar(self, id: int):
exemplarMenu = CUI('Exemplar menu')
self.currentMenu[1] = exemplarMenu
try:
exemplar: Exemplar = self.exemplarController.getById(id)
values = exemplar.getValues().split(',')
keys = exemplar.getKeys().split(',')
for i in range(len(keys)):
exemplarMenu.addField(keys[i] + ' : ' + values[i])
exemplarMenu.addField(
'DELETE', lambda: self.__deleteExemplar(exemplar.exemplar_id))
exemplarMenu.addField(
'UPDATE', lambda: self.__updateExemplar(exemplar.exemplar_id))
exemplarMenu.addField('Return to prev menu',
lambda: self.__supportCUIFunc())
except Exception as err:
exemplarMenu.setError(str(err))
exemplarMenu.run(False)
def __getBooks(self):
booksMenu = CUI('Books')
self.currentMenu[0] = booksMenu
try:
if self.page < math.ceil(
self.bookController.getCount() / self.per_page):
booksMenu.addField(
'NEXT', lambda: self.__changePageParams(
self.page + 1, self.per_page))
if self.page > 1:
booksMenu.addField(
'PREV', lambda: self.__changePageParams(
self.page - 1, self.per_page))
books = self.bookController.getAll(self.page, self.per_page)
for book in books:
booksMenu.addField(
f"<{book.book_id}>{book.name}",
lambda book_id=book.book_id: self.__getBook(book_id))
except Exception as err:
booksMenu.setError(str(err))
booksMenu.run('Return to main menu')
def __getExemplars(self):
exemplarsMenu = CUI('Exemplar')
self.currentMenu[0] = exemplarsMenu
try:
if self.page < math.ceil(
self.exemplarController.getCount() / self.per_page):
exemplarsMenu.addField(
'NEXT', lambda: self.__changePageParams(
self.page + 1, self.per_page))
if self.page > 1:
exemplarsMenu.addField(
'PREV', lambda: self.__changePageParams(
self.page - 1, self.per_page))
exemplars = self.exemplarController.getAll(self.page,
self.per_page)
for exemplar in exemplars:
exemplarsMenu.addField(f"<{exemplar.exemplar_id}>",
lambda exemplar_id=exemplar.exemplar_id:
self.__getExemplar(exemplar_id))
except Exception as err:
exemplarsMenu.setError(str(err))
exemplarsMenu.run('Return to main menu')
class ReaderView:
def __init__(self):
self.currentMenu = [None, None]
self.page = 1
self.per_page = 10
self.CUI = CUI("Reader model menu")
self.readerController = ReaderController()
self.CUI.addField('Add Reader', lambda: self.__addReaders())
self.CUI.addField('Generate rows', lambda: self.__generateRows())
self.CUI.addField('Readers', lambda: self.__getReaders())
def run(self):
self.CUI.run()
def __generateRows(self):
try:
rowsNum = int(input('Enter rows num: '))
if not (isinstance(rowsNum, int) and rowsNum > 0):
raise Exception('Invalid input')
self.CUI.setError(' Please wait! Rows are generating... ')
time = self.readerController.generateRows(rowsNum)
self.CUI.setError(' Rows generated! Elapsed time: ' + time)
except Exception as error:
self.CUI.setError(str(error))
def __addReaders(self):
try:
result = self.readerController.add()
if isinstance(result, bool) and not result: raise Exception('Inccorect values')
else: self.CUI.setError('New Reader id: ' + str(result))
except Exception as err:
self.CUI.setError(str(err))
def __changePageParams(self, page: int, per_page: int):
self.page = page
self.per_page = per_page
self.currentMenu[0].stop()
self.__getReaders()
def __getReaders(self):
readersMenu = CUI('Readers')
self.currentMenu[0] = readersMenu
try:
if self.page < math.ceil(self.readerController.getCount() / self.per_page):
readersMenu.addField('NEXT', lambda: self.__changePageParams(self.page + 1, self.per_page))
if self.page > 1:
readersMenu.addField('PREV', lambda: self.__changePageParams(self.page - 1, self.per_page))
readers = self.readerController.getAll(self.page, self.per_page)
for reader in readers:
readersMenu.addField(f"<{reader.reader_id}>{reader.name}", lambda reader_id=reader.reader_id: self.__getReader(reader_id))
except Exception as err:
readersMenu.setError(str(err))
readersMenu.run('Return to main menu')
def __updateReader(self, id: int):
if self.readerController.update(id):
self.currentMenu[1].stop()
self.__getReader(id)
else:
self.currentMenu[1].setError('Incorrect update values')
def __deleteReader(self, id: int):
self.readerController.delete(id)
self.currentMenu[1].stop()
self.__supportCUIFunc()
def __supportCUIFunc(self):
self.currentMenu[1].stop()
self.__changePageParams(self.page, self.per_page)
def __getReader(self, id: int):
readerMenu = CUI('Reader menu')
self.currentMenu[1] = readerMenu
try:
reader: Reader = self.readerController.getById(id)
values = reader.getValues().split(',')
keys = reader.getKeys().split(',')
for i in range(len(keys)):
if i == 0:
continue
readerMenu.addField(keys[i] + ' : ' + values[i])
readerMenu.addField('DELETE', lambda: self.__deleteReader(reader.reader_id))
readerMenu.addField('UPDATE', lambda: self.__updateReader(reader.reader_id))
readerMenu.addField('Return to prev menu', lambda: self.__supportCUIFunc())
except Exception as err:
readerMenu.setError(str(err))
readerMenu.run(False)
