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borrowBookDialog.py
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# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'borrowBookDialog.ui'
#
# Created by: PyQt5 UI code generator 5.12.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import qdarkstyle
import time
import db
class borrowBookDialog(QDialog):
borrow_book_success_signal = pyqtSignal()
def __init__(self, StudentId, parent=None):
super(borrowBookDialog, self).__init__(parent)
self.studentId = StudentId
self.setupUi()
def setupUi(self):
# self.setObjectName("borrowBookDialog")
self.resize(300, 400)
self.formLayout = QtWidgets.QFormLayout(self)
self.formLayout.setObjectName("formLayout")
self.titlelabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(20)
self.titlelabel.setFont(font)
self.titlelabel.setLayoutDirection(QtCore.Qt.LeftToRight)
self.titlelabel.setLineWidth(1)
self.titlelabel.setAlignment(QtCore.Qt.AlignCenter)
self.titlelabel.setObjectName("titlelabel")
self.formLayout.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.titlelabel)
self.borrowStudentLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.borrowStudentLabel.setFont(font)
self.borrowStudentLabel.setObjectName("borrowStudentLabel")
self.formLayout.setWidget(1, QtWidgets.QFormLayout.LabelRole, self.borrowStudentLabel)
self.bookNameLabel = QtWidgets.QLabel(self)
self.borrowStudentIdLabel = QtWidgets.QLabel(self)
self.borrowStudentIdLabel.setFont(font)
self.borrowStudentIdLabel.setObjectName("borrowStudentIdLabel")
self.formLayout.setWidget(1, QtWidgets.QFormLayout.FieldRole, self.borrowStudentIdLabel)
self.bookNameLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.bookNameLabel.setFont(font)
self.bookNameLabel.setObjectName("bookNameLabel")
self.formLayout.setWidget(2, QtWidgets.QFormLayout.LabelRole, self.bookNameLabel)
self.bookNameEdit = QtWidgets.QLineEdit(self)
self.bookNameEdit.setEnabled(False)
font = QtGui.QFont()
font.setPointSize(14)
self.bookNameEdit.setFont(font)
self.bookNameEdit.setMaxLength(10)
self.bookNameEdit.setObjectName("bookNameEdit")
self.formLayout.setWidget(2, QtWidgets.QFormLayout.FieldRole, self.bookNameEdit)
self.bookIdLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.bookIdLabel.setFont(font)
self.bookIdLabel.setObjectName("bookIdLabel")
self.formLayout.setWidget(3, QtWidgets.QFormLayout.LabelRole, self.bookIdLabel)
self.bookIdEdit = QtWidgets.QLineEdit(self)
font = QtGui.QFont()
font.setPointSize(14)
self.bookIdEdit.setFont(font)
self.bookIdEdit.setMaxLength(6)
self.bookIdEdit.setObjectName("bookIdEdit")
self.formLayout.setWidget(3, QtWidgets.QFormLayout.FieldRole, self.bookIdEdit)
self.authNameLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.authNameLabel.setFont(font)
self.authNameLabel.setObjectName("authNameLabel")
self.formLayout.setWidget(4, QtWidgets.QFormLayout.LabelRole, self.authNameLabel)
self.authNameEdit = QtWidgets.QLineEdit(self)
self.authNameEdit.setEnabled(False)
font = QtGui.QFont()
font.setPointSize(14)
self.authNameEdit.setFont(font)
self.authNameEdit.setMaxLength(10)
self.authNameEdit.setObjectName("authNameEdit")
self.formLayout.setWidget(4, QtWidgets.QFormLayout.FieldRole, self.authNameEdit)
self.categoryLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.categoryLabel.setFont(font)
self.categoryLabel.setObjectName("categoryLabel")
self.formLayout.setWidget(5, QtWidgets.QFormLayout.LabelRole, self.categoryLabel)
self.categoryComboBox = QtWidgets.QComboBox(self)
self.categoryComboBox.setEnabled(False)
font = QtGui.QFont()
font.setPointSize(14)
self.categoryComboBox.setFont(font)
self.categoryComboBox.setObjectName("categoryComboBox")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.categoryComboBox.addItem("")
self.formLayout.setWidget(5, QtWidgets.QFormLayout.FieldRole, self.categoryComboBox)
self.publisherLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.publisherLabel.setFont(font)
self.publisherLabel.setObjectName("publisherLabel")
self.formLayout.setWidget(6, QtWidgets.QFormLayout.LabelRole, self.publisherLabel)
self.publisherEdit = QtWidgets.QLineEdit(self)
self.publisherEdit.setEnabled(False)
font = QtGui.QFont()
font.setPointSize(14)
self.publisherEdit.setFont(font)
self.publisherEdit.setMaxLength(10)
self.publisherEdit.setObjectName("publisherEdit")
self.formLayout.setWidget(6, QtWidgets.QFormLayout.FieldRole, self.publisherEdit)
self.publishDateLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.publishDateLabel.setFont(font)
self.publishDateLabel.setObjectName("publishDateLabel")
self.formLayout.setWidget(7, QtWidgets.QFormLayout.LabelRole, self.publishDateLabel)
self.publishTime = QtWidgets.QDateEdit(self)
self.publishTime.setEnabled(False)
font = QtGui.QFont()
font.setPointSize(14)
self.publishTime.setFont(font)
self.publishTime.setObjectName("publishTime")
self.formLayout.setWidget(7, QtWidgets.QFormLayout.FieldRole, self.publishTime)
self.borrowBookButton = QtWidgets.QPushButton(self)
self.borrowBookButton.setMaximumSize(QtCore.QSize(140, 32))
font = QtGui.QFont()
font.setPointSize(16)
self.borrowBookButton.setFont(font)
self.borrowBookButton.setObjectName("borrowBookButton")
self.formLayout.setWidget(8, QtWidgets.QFormLayout.FieldRole, self.borrowBookButton)
self.retranslateUi()
QtCore.QMetaObject.connectSlotsByName(self)
self.borrowBookButton.clicked.connect(self.borrowButtonClicked)
self.bookIdEdit.textChanged.connect(self.bookIdEditChanged)
self.bookIdEdit.returnPressed.connect(self.borrowButtonClicked)
def retranslateUi(self, ):
_translate = QtCore.QCoreApplication.translate
self.setWindowTitle(_translate("borrowBookDialog", "借阅书籍"))
self.titlelabel.setText(_translate("borrowBookDialog", "借阅书籍"))
self.borrowStudentLabel.setText(_translate("borrowBookDialog", "借 阅 人:"))
self.borrowStudentIdLabel.setText(_translate("borrowBookDialog", self.studentId))
self.bookNameLabel.setText(_translate("borrowBookDialog", "书 名:"))
self.bookIdLabel.setText(_translate("borrowBookDialog", "书 号:"))
self.authNameLabel.setText(_translate("borrowBookDialog", "作 者:"))
self.categoryLabel.setText(_translate("borrowBookDialog", "分 类:"))
self.categoryComboBox.setItemText(0, _translate("borrowBookDialog", "哲学"))
self.categoryComboBox.setItemText(1, _translate("borrowBookDialog", "社会科学"))
self.categoryComboBox.setItemText(2, _translate("borrowBookDialog", "政治"))
self.categoryComboBox.setItemText(3, _translate("borrowBookDialog", "法律"))
self.categoryComboBox.setItemText(4, _translate("borrowBookDialog", "军事"))
self.categoryComboBox.setItemText(5, _translate("borrowBookDialog", "经济"))
self.categoryComboBox.setItemText(6, _translate("borrowBookDialog", "文化"))
self.categoryComboBox.setItemText(7, _translate("borrowBookDialog", "教育"))
self.categoryComboBox.setItemText(8, _translate("borrowBookDialog", "体育"))
self.categoryComboBox.setItemText(9, _translate("borrowBookDialog", "语言文字"))
self.categoryComboBox.setItemText(10, _translate("borrowBookDialog", "艺术"))
self.categoryComboBox.setItemText(11, _translate("borrowBookDialog", "历史"))
self.categoryComboBox.setItemText(12, _translate("borrowBookDialog", "地理"))
self.categoryComboBox.setItemText(13, _translate("borrowBookDialog", "天文学"))
self.categoryComboBox.setItemText(14, _translate("borrowBookDialog", "生物学"))
self.categoryComboBox.setItemText(15, _translate("borrowBookDialog", "医学卫生"))
self.categoryComboBox.setItemText(16, _translate("borrowBookDialog", "农业"))
self.publisherLabel.setText(_translate("borrowBookDialog", "出 版 社:"))
self.publishDateLabel.setText(_translate("borrowBookDialog", "出版日期:"))
self.borrowBookButton.setText(_translate("borrowBookDialog", "确认借阅"))
def borrowButtonClicked(self):
# 获取书号，书号为空或不存在库中，则弹出错误
# 向Book_User表插入记录，更新User表以及Book表
BookId = self.bookIdEdit.text()
# BookId为空的处理
if (BookId == ""):
print(QMessageBox.warning(self, "警告", "你所要借的书不存在，请查看输入", QMessageBox.Yes, QMessageBox.Yes))
return
# 如果BookId不存在
sql = "SELECT * FROM Book WHERE BookId='%s'" % BookId
query = db.query(sql)
if (query == ()):
print(QMessageBox.warning(self, "警告", "你所要借的书不存在，请查看输入", QMessageBox.Yes, QMessageBox.Yes))
return
# 借书上限5本
sql = "SELECT COUNT(StudentId) FROM User_Book WHERE StudentId='%s' AND BorrowState=1" % (
self.studentId)
query = db.query(sql)
if (query != ()):
borrowNum = query[0][0]
if (borrowNum == 5):
QMessageBox.warning(self, "警告", "您借阅的书达到上限（5本）,借书失败！", QMessageBox.Yes, QMessageBox.Yes)
return
# 不允许重复借书
sql = "SELECT COUNT(StudentId) FROM User_Book WHERE StudentId='%s' AND BookId='%s' AND BorrowState=1" % (
self.studentId, BookId)
query = db.query(sql)
if (query != 0 and query[0][0]):
QMessageBox.warning(self, "警告", "您已经借阅了本书并尚未归还，借阅失败！", QMessageBox.Yes, QMessageBox.Yes)
return
# 更新User表
sql = "UPDATE User SET TimesBorrowed=TimesBorrowed+1,NumBorrowed=NumBorrowed+1 WHERE StudentId='%s'" % self.studentId
db.exec_(sql)
# 更新Book表
sql = "UPDATE Book SET NumCanBorrow=NumCanBorrow-1,NumBorrowed=NumBorrowed+1 WHERE BookId='%s'" % BookId
db.exec_(sql)
# 插入User_Book表
timenow = time.strftime('%Y-%m-%d', time.localtime(time.time()))
sql = "INSERT INTO User_Book VALUES ('%s','%s','%s',NULL,1)" % (self.studentId, BookId, timenow)
db.exec_(sql)
print(QMessageBox.information(self, "提示", "借阅成功!", QMessageBox.Yes, QMessageBox.Yes))
self.borrow_book_success_signal.emit()
self.close()
return
def bookIdEditChanged(self):
bookId = self.bookIdEdit.text()
if (bookId == ""):
self.bookNameEdit.clear()
self.publisherEdit.clear()
self.authNameEdit.clear()
self.publishTime.clear()
sql = "SELECT * FROM Book WHERE BookId='%s'" % (bookId)
query = db.query(sql)
# 查询对应书号，如果存在就更新form
if (query != ()):
query = query[0]
self.bookNameEdit.setText(query[0])
self.authNameEdit.setText(query[2])
self.categoryComboBox.setCurrentText(query[3])
self.publisherEdit.setText(query[4])
self.publishTime.setDate(query[5])
return
if __name__ == "__main__":
app = QApplication(sys.argv)
app.setWindowIcon(QIcon("./images/MainWindow_1.ico"))
# app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
mainMindow = borrowBookDialog("PB15000135")
mainMindow.show()
sys.exit(app.exec_())