1 需求分析
针对图书馆的图书管理系统数据库设计,分别对图书馆的读者、一般工作人员和部门负责人进行详细地分析,总结出如下的需求信息:
(1)图书馆中的图书具有书号、书名、作者、馆藏册数、在馆册数、价格、出版社及摘要等必要信息。其中每种书具有唯一的书号,即一个书号对应一种书而不是一本书。书名可以重复,但如果只是两本书重名,则这两本书具有不同的书号。馆藏册数和在馆册数可以用于让读者判断是否可以借,另外,馆藏册数必须要大于等于在馆册数。
(2)图书馆中的读者具有卡号、姓名、性别、单位、类型、级别和在借册数这些必要信息。卡号用于唯一地标识读者身份,每个读者对应一个卡号,同样每个卡号也不能对应多个读者。类型这个属性可以用于区分教员、学员,区分他们的意义在于不同类型的读者可同时借阅的书籍数大不相同。
(3)从读者的角度,可以查阅图书馆相应的图书资料(也可以按要求查找,如输入一些关键字)以及每本书的在馆册数;同时可以提交借书和还书的申请;能判断自己是否因超期而欠款,若超期则自动显示出所需的罚款金额。
(4)图书馆中的工作人员可以分为图书管理员和系统管理员。
(5)图书管理员是图书馆中最普通的工作人员,图书管理员可以实现读者的借书和还书操作;也可以实现在读者交罚款之后取消罚款记录。另外,图书管理员在执行借书或还书操作时,应根据不同读者类型的借书限制册和还书日期等约束条件来实现。
(6)系统管理员主要管理各类人员信息,包括读者信息和图书馆管理员信息这两项。
(7)图书馆中应当有书架,书架具有书架号和类型两个属性,不同的书架号对应的图书类型也应该不同;另外还需要在图书中增加存放位置这个属性。
2 系统设计
2.1 概念结构设计
图书这个实体型由书号、书名、作者、价格、出版社、摘要、馆藏册数、在馆册数、存放位置和被借次数这些属性组成,其中书号这个属性为主属性。
读者这个实体型由学号、姓名、性别、单位、类型、可借册数、在借册数、登陆密码和欠款这些属性组成,其中学号这个属性为主属性。
书架这个实体型由书架号和类型这两个属性组成,其中书架号这个属性为主属性,类型为本书架中存放书籍的类型,与之前读者中的表示读者身份的类型完全不同。
图书管理员和系统管理员这两个实体型由工作号,姓名和登录密码这些属性组成,其中工作号为主属性。
借还申请这个实体型由学号、书号、提交时间和借还类型这些属性组成,这些属性均为主属性。
项目代码:https://github.com/usutdzxych/python_mysql
"""
"""
import time
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QTableWidgetItem, QMessageBox
from connect import *
cursor, conn = connect() # 连接数据库
# 读者界面设计
class Ui_Reader(object):
# 创建UI
def setupUi(self, Reader):
self.loginID = self.getreaderid()
Reader.setObjectName("Reader")
Reader.resize(719, 742)
# readertab
self.readertab = QtWidgets.QTabWidget(Reader)
self.readertab.setGeometry(QtCore.QRect(11, 11, 701, 721))
self.readertab.setObjectName("readertab")
self.borrowbook = QtWidgets.QWidget()
self.borrowbook.setObjectName("borrowbook") # 窗口换名字
self.layoutWidget = QtWidgets.QWidget(self.borrowbook)
self.layoutWidget.setGeometry(QtCore.QRect(12, 10, 671, 671))
self.layoutWidget.setObjectName("layoutWidget")
self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.layoutWidget)
self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.label = QtWidgets.QLabel(self.layoutWidget)
self.label.setObjectName("label")
#水平方向加窗口
self.horizontalLayout.addWidget(self.label)
self.borrowbookid = QtWidgets.QLineEdit(self.layoutWidget)
self.borrowbookid.setObjectName("borrowbookid")
self.horizontalLayout.addWidget(self.borrowbookid)
self.borrowcheckbt = QtWidgets.QPushButton(self.layoutWidget)
self.borrowcheckbt.setObjectName("borrowcheckbt")
self.horizontalLayout.addWidget(self.borrowcheckbt)
self.verticalLayout_2.addLayout(self.horizontalLayout)
self.borrowtable = QtWidgets.QTableWidget(self.layoutWidget)
self.borrowtable.setMouseTracking(False)
self.borrowtable.setEditTriggers(QtWidgets.QAbstractItemView.EditKeyPressed)
self.borrowtable.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.borrowtable.setObjectName("borrowtable")
self.borrowtable.setColumnCount(5)
self.borrowtable.setRowCount(1)
item = QtWidgets.QTableWidgetItem()
self.borrowtable.setVerticalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.borrowtable.setHorizontalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.borrowtable.setHorizontalHeaderItem(1, item)
item = QtWidgets.QTableWidgetItem()
self.borrowtable.setHorizontalHeaderItem(2, item)
item = QtWidgets.QTableWidgetItem()
self.borrowtable.setHorizontalHeaderItem(3, item)
item = QtWidgets.QTableWidgetItem()
self.borrowtable.setHorizontalHeaderItem(4, item)
self.verticalLayout_2.addWidget(self.borrowtable)
self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.borrowokbt = QtWidgets.QPushButton(self.layoutWidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.borrowokbt.sizePolicy().hasHeightForWidth())
self.borrowokbt.setSizePolicy(sizePolicy)
self.borrowokbt.setObjectName("borrowokbt")
self.horizontalLayout_2.addWidget(self.borrowokbt)
self.verticalLayout_2.addLayout(self.horizontalLayout_2)
self.readertab.addTab(self.borrowbook, "")
self.returnbook = QtWidgets.QWidget()
self.returnbook.setObjectName("returnbook")
self.layoutWidget1 = QtWidgets.QWidget(self.returnbook)
self.layoutWidget1.setGeometry(QtCore.QRect(9, 9, 311, 111))
self.layoutWidget1.setObjectName("layoutWidget1")
self.horizontalLayout_3 = QtWidgets.QHBoxLayout(self.layoutWidget1)
self.horizontalLayout_3.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_3.setObjectName("horizontalLayout_3")
self.returnbo = QtWidgets.QLabel(self.layoutWidget1)
self.returnbo.setObjectName("returnbo")
self.horizontalLayout_3.addWidget(self.returnbo)
self.returnbookid = QtWidgets.QLineEdit(self.layoutWidget1)
self.returnbookid.setObjectName("returnbookid")
self.horizontalLayout_3.addWidget(self.returnbookid)
self.returnbookbt = QtWidgets.QPushButton(self.layoutWidget1)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.returnbookbt.sizePolicy().hasHeightForWidth())
self.returnbookbt.setSizePolicy(sizePolicy)
self.returnbookbt.setObjectName("returnbookbt")
self.horizontalLayout_3.addWidget(self.returnbookbt)
self.readertab.addTab(self.returnbook, "")
self.checkbook = QtWidgets.QWidget()
self.checkbook.setObjectName("checkbook")
self.tableWidget = QtWidgets.QTableWidget(self.checkbook)
self.tableWidget.setGeometry(QtCore.QRect(10, 200, 651, 471))
self.tableWidget.setObjectName("tableWidget")
self.tableWidget.setEditTriggers(QtWidgets.QAbstractItemView.EditKeyPressed)
self.tableWidget.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.tableWidget.setColumnCount(9)
self.tableWidget.setRowCount(0)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(1, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(2, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(3, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(4, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(5, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(6, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(7, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(8, item)
self.widget = QtWidgets.QWidget(self.checkbook)
self.widget.setGeometry(QtCore.QRect(13, 13, 641, 162))
self.widget.setObjectName("widget")
self.horizontalLayout_9 = QtWidgets.QHBoxLayout(self.widget)
self.horizontalLayout_9.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_9.setObjectName("horizontalLayout_9")
self.verticalLayout_4 = QtWidgets.QVBoxLayout()
self.verticalLayout_4.setObjectName("verticalLayout_4")
self.horizontalLayout_4 = QtWidgets.QHBoxLayout()
self.horizontalLayout_4.setObjectName("horizontalLayout_4")
self.label_3 = QtWidgets.QLabel(self.widget)
self.label_3.setObjectName("label_3")
self.horizontalLayout_4.addWidget(self.label_3)
self.bookid = QtWidgets.QLineEdit(self.widget)
self.bookid.setObjectName("bookid")
self.horizontalLayout_4.addWidget(self.bookid)
self.verticalLayout_4.addLayout(self.horizontalLayout_4)
self.horizontalLayout_5 = QtWidgets.QHBoxLayout()
self.horizontalLayout_5.setObjectName("horizontalLayout_5")
self.label_4 = QtWidgets.QLabel(self.widget)
self.label_4.setObjectName("label_4")
self.horizontalLayout_5.addWidget(self.label_4)
self.bookname = QtWidgets.QLineEdit(self.widget)
self.bookname.setObjectName("bookname")
self.horizontalLayout_5.addWidget(self.bookname)
self.verticalLayout_4.addLayout(self.horizontalLayout_5)
self.horizontalLayout_6 = QtWidgets.QHBoxLayout()
self.horizontalLayout_6.setObjectName("horizontalLayout_6")
self.label_5 = QtWidgets.QLabel(self.widget)
self.label_5.setObjectName("label_5")
self.horizontalLayout_6.addWidget(self.label_5)
self.author = QtWidgets.QLineEdit(self.widget)
self.author.setObjectName("author")
self.horizontalLayout_6.addWidget(self.author)
self.verticalLayout_4.addLayout(self.horizontalLayout_6)
self.horizontalLayout_7 = QtWidgets.QHBoxLayout()
self.horizontalLayout_7.setObjectName("horizontalLayout_7")
self.label_6 = QtWidgets.QLabel(self.widget)
self.label_6.setObjectName("label_6")
self.horizontalLayout_7.addWidget(self.label_6)
self.type = QtWidgets.QLineEdit(self.widget)
self.type.setObjectName("type")
self.horizontalLayout_7.addWidget(self.type)
self.verticalLayout_4.addLayout(self.horizontalLayout_7)
self.horizontalLayout_8 = QtWidgets.QHBoxLayout()
self.horizontalLayout_8.setObjectName("horizontalLayout_8")
self.label_7 = QtWidgets.QLabel(self.widget)
self.label_7.setObjectName("label_7")
self.horizontalLayout_8.addWidget(self.label_7)
self.press = QtWidgets.QLineEdit(self.widget)
self.press.setObjectName("press")
self.horizontalLayout_8.addWidget(self.press)
self.verticalLayout_4.addLayout(self.horizontalLayout_8)
self.horizontalLayout_9.addLayout(self.verticalLayout_4)
self.verticalLayout = QtWidgets.QVBoxLayout()
self.verticalLayout.setObjectName("verticalLayout")
self.pushButton = QtWidgets.QPushButton(self.widget)
self.pushButton.setObjectName("pushButton")
self.verticalLayout.addWidget(self.pushButton)
self.checkbt = QtWidgets.QPushButton(self.widget)
self.checkbt.setObjectName("checkbt")
self.verticalLayout.addWidget(self.checkbt)
self.horizontalLayout_9.addLayout(self.verticalLayout)
self.readertab.addTab(self.checkbook, "")
self.userinfo = QtWidgets.QWidget()
self.userinfo.setObjectName("userinfo")
self.verticalLayout_9 = QtWidgets.QVBoxLayout(self.userinfo)
self.verticalLayout_9.setObjectName("verticalLayout_9")
self.verticalLayout_8 = QtWidgets.QVBoxLayout()
self.verticalLayout_8.setObjectName("verticalLayout_8")
self.horizontalLayout_14 = QtWidgets.QHBoxLayout()
self.horizontalLayout_14.setObjectName("horizontalLayout_14")
self.verticalLayout_7 = QtWidgets.QVBoxLayout()
self.verticalLayout_7.setObjectName("verticalLayout_7")
self.horizontalLayout_10 = QtWidgets.QHBoxLayout()
self.horizontalLayout_10.setObjectName("horizontalLayout_10")
self.label_8 = QtWidgets.QLabel(self.userinfo)
self.label_8.setObjectName("label_8")
self.horizontalLayout_10.addWidget(self.label_8)
self.lineEdit_8 = QtWidgets.QLineEdit(self.userinfo)
self.lineEdit_8.setObjectName("lineEdit_8")
self.horizontalLayout_10.addWidget(self.lineEdit_8)
self.verticalLayout_7.addLayout(self.horizontalLayout_10)
self.horizontalLayout_11 = QtWidgets.QHBoxLayout()
self.horizontalLayout_11.setObjectName("horizontalLayout_11")
self.label_9 = QtWidgets.QLabel(self.userinfo)
self.label_9.setObjectName("label_9")
self.horizontalLayout_11.addWidget(self.label_9)
self.lineEdit_9 = QtWidgets.QLineEdit(self.userinfo)
self.lineEdit_9.setObjectName("lineEdit_9")
self.horizontalLayout_11.addWidget(self.lineEdit_9)
self.verticalLayout_7.addLayout(self.horizontalLayout_11)
self.horizontalLayout_12 = QtWidgets.QHBoxLayout()
self.horizontalLayout_12.setObjectName("horizontalLayout_12")
self.verticalLayout_7.addLayout(self.horizontalLayout_12)
self.horizontalLayout_13 = QtWidgets.QHBoxLayout()
self.horizontalLayout_13.setObjectName("horizontalLayout_13")
self.label_11 = QtWidgets.QLabel(self.userinfo)
self.label_11.setObjectName("label_11")
self.horizontalLayout_13.addWidget(self.label_11)
self.lineEdit_11 = QtWidgets.QLineEdit(self.userinfo)
self.lineEdit_11.setObjectName("lineEdit_11")
self.horizontalLayout_13.addWidget(self.lineEdit_11)
self.verticalLayout_7.addLayout(self.horizontalLayout_13)
self.horizontalLayout_14.addLayout(self.verticalLayout_7)
self.pushButton_5 = QtWidgets.QPushButton(self.userinfo)
self.pushButton_5.setObjectName("pushButton_5")
self.horizontalLayout_14.addWidget(self.pushButton_5)
self.verticalLayout_8.addLayout(self.horizontalLayout_14)
self.textBrowser_2 = QtWidgets.QTextBrowser(self.userinfo)
self.textBrowser_2.setObjectName("textBrowser_2")
self.verticalLayout_8.addWidget(self.textBrowser_2)
self.verticalLayout_9.addLayout(self.verticalLayout_8)
self.readertab.addTab(self.userinfo, "")
self.pay_2 = QtWidgets.QWidget()
self.pay_2.setObjectName("pay_2")
self.gridLayout = QtWidgets.QGridLayout(self.pay_2)
self.gridLayout.setObjectName("gridLayout")
self.money = QtWidgets.QLabel(self.pay_2)
self.money.setText("")
self.money.setObjectName("money")
self.gridLayout.addWidget(self.money, 0, 1, 1, 1)
self.label_12 = QtWidgets.QLabel(self.pay_2)
self.label_12.setObjectName("label_12")
self.gridLayout.addWidget(self.label_12, 0, 0, 1, 1)
self.alipay = QtWidgets.QPushButton(self.pay_2)
self.alipay.setObjectName("alipay")
self.gridLayout.addWidget(self.alipay, 1, 2, 1, 1)
self.wepay = QtWidgets.QPushButton(self.pay_2)
self.wepay.setObjectName("wepay")
self.gridLayout.addWidget(self.wepay, 1, 1, 1, 1)
self.readertab.addTab(self.pay_2, "")
self.retranslateUi(Reader)
self.getreaderinfo()
# self.textBrowser_2.setText(self.readerlogin
self.readertab.setCurrentIndex(0)
QtCore.QMetaObject.connectSlotsByName(Reader)
self.borrowcheckbt.clicked.connect(self.borrowidcheck)
self.borrowokbt.clicked.connect(self.submit)
# 还书
self.returnbookbt.clicked.connect(self.ReturnBook)
# 查询所有书
self.pushButton.clicked.connect(self.selectallbook)
self.checkbt.clicked.connect(self.selectbook)
# 信息修改 pushButton_5
self.pushButton_5.clicked.connect(self.alterinfo)
self.wepay.clicked.connect(self.paymoney)
self.alipay.clicked.connect(self.paymoney)
def retranslateUi(self, Reader):
_translate = QtCore.QCoreApplication.translate
Reader.setWindowTitle(_translate("Reader", "读者系统"))
# 借书
self.label.setText(_translate("Reader", "书号/书名"))
self.borrowcheckbt.setText(_translate("Reader", "查询"))
item = self.borrowtable.verticalHeaderItem(0)
item.setText(_translate("Reader", "1"))
item = self.borrowtable.horizontalHeaderItem(0)
item.setText(_translate("Reader", "书号"))
item = self.borrowtable.horizontalHeaderItem(1)
item.setText(_translate("Reader", "书名"))
item = self.borrowtable.horizontalHeaderItem(2)
item.setText(_translate("Reader", "作者"))
item = self.borrowtable.horizontalHeaderItem(3)
item.setText(_translate("Reader", "出版社"))
item = self.borrowtable.horizontalHeaderItem(4)
item.setText(_translate("Reader", "在馆册数"))
self.borrowokbt.setText(_translate("Reader", "确认借书"))
# 页面表格
self.readertab.setTabText(self.readertab.indexOf(self.borrowbook), _translate("Reader", "借书"))
# 还书
self.returnbo.setText(_translate("Reader", "书号"))
self.returnbookbt.setText(_translate("Reader", "还书"))
self.readertab.setTabText(self.readertab.indexOf(self.returnbook), _translate("Reader", "还书"))
# 查询图书信息
item = self.tableWidget.horizontalHeaderItem(0)
item.setText(_translate("Reader", "书号"))
item = self.tableWidget.horizontalHeaderItem(1)
item.setText(_translate("Reader", "书名"))
item = self.tableWidget.horizontalHeaderItem(2)
item.setText(_translate("Reader", "作者"))
item = self.tableWidget.horizontalHeaderItem(3)
item.setText(_translate("Reader", "类别"))
item = self.tableWidget.horizontalHeaderItem(4)
item.setText(_translate("Reader", "出版社"))
item = self.tableWidget.horizontalHeaderItem(5)
item.setText(_translate("Reader", "馆藏册数"))
item = self.tableWidget.horizontalHeaderItem(6)
item.setText(_translate("Reader", "在馆册数"))
item = self.tableWidget.horizontalHeaderItem(7)
item.setText(_translate("Reader", "书架号"))
item = self.tableWidget.horizontalHeaderItem(8)
item.setText(_translate("Reader", "被借次数"))
self.label_3.setText(_translate("Reader", "书名"))
self.label_4.setText(_translate("Reader", "书号"))
self.label_5.setText(_translate("Reader", "作者"))
self.label_6.setText(_translate("Reader", "类别"))
self.label_7.setText(_translate("Reader", "出版社"))
self.pushButton.setText(_translate("Reader", "查询所有"))
self.checkbt.setText(_translate("Reader", "查询"))
self.readertab.setTabText(self.readertab.indexOf(self.checkbook), _translate("Reader", "查询图书信息"))
# 用户信息
self.label_8.setText(_translate("Reader", "姓名"))
self.label_9.setText(_translate("Reader", "性别"))
self.label_11.setText(_translate("Reader", "密码"))
self.pushButton_5.setText(_translate("Reader", "修改"))
self.readertab.setTabText(self.readertab.indexOf(self.userinfo), _translate("Reader", "用户信息修改"))
self.label_12.setText(_translate("Reader", "需支付罚款"))
self.alipay.setText(_translate("Reader", "支付宝支付"))
self.wepay.setText(_translate("Reader", "微信支付"))
self.readertab.setTabText(self.readertab.indexOf(self.pay_2), _translate("Reader", "逾期罚款")) #####
# 01 借书信息查询
def borrowidcheck(self):
bookin = self.borrowbookid.text()
sql = 'select * from books where 书号="%s" or 书名="%s"' % (bookin, bookin)
res = cursor.execute(sql)
bookinfo = cursor.fetchall()
n = len(bookinfo)
self.borrowtable.setRowCount(n)
for i in range(n):
book = bookinfo[i]
bookid = QTableWidgetItem(book[0])
bookname = QTableWidgetItem(book[1])
bookauthor = QTableWidgetItem(book[2])
bookpress = QTableWidgetItem(book[5])
booknumber = QTableWidgetItem(str(book[8]))
self.borrowtable.setItem(i, 0, bookid)
self.borrowtable.setItem(i, 1, bookname)
self.borrowtable.setItem(i, 2, bookauthor)
self.borrowtable.setItem(i, 3, bookpress)
self.borrowtable.setItem(i, 4, booknumber)
# 02 获取当前读者ID
def getreaderid(self):
nowtime = time.strftime("%Y-%m-%d", time.localtime())
sql = 'SELECT * FROM loginrecord where time = "%s" order by number' % nowtime
cursor.execute(sql)
todaylogin = cursor.fetchall()
readerlogin = todaylogin[-1]
ID = readerlogin[0]
print(ID)
return ID
# 03 获取读者信息
def getreaderinfo(self):
sql = 'SELECT * FROM readers where ID="%s"' % (self.loginID)
cursor.execute(sql)
readerlogined = cursor.fetchall()
readerlogined = readerlogined[0]
text = '读者ID:%s\n姓名:%s\n性别:%s\n单位:%s\n读者类型:%s\n可借册数:%d\n在借册数:%d\n密码:%s\n欠款:%.2f' % readerlogined
self.textBrowser_2.setText(text)
money = str(readerlogined[-1]) + '元'
self.money.setText(money)
# 04 提交借书申请
def submit(self):
s = self.borrowtable.currentRow()
if s == -1:
QMessageBox.warning(self, "警告", "请点击想借阅的书!", QMessageBox.Yes)
else:
remain = int(self.borrowtable.item(s, 4).text())
if remain == 0:
QMessageBox.warning(self, "警告", "这本书已经借光啦!", QMessageBox.Yes)
else:
t = self.borrowtable.item(s, 0).text()
sql = 'SELECT * FROM item where ID="%s" and bookid="%s" and type="borrow"' % (self.loginID, t)
res = cursor.execute(sql)
if res:
QMessageBox.warning(self, "警告", "请勿重复提交!", QMessageBox.Yes)
else:
nowtime = time.strftime("%Y-%m-%d", time.localtime())
sql = 'INSERT INTO item(bookid,ID,time,type) VALUES ("%s","%s","%s","borrow")' % (t, self.loginID, nowtime)
cursor.execute(sql)
conn.commit()
QMessageBox.warning(self, "提示", "提交成功!", QMessageBox.Yes)
# 05 提交还书申请
def ReturnBook(self):
bookid = self.returnbookid.text()
sql = 'SELECT * FROM books where 书号="%s"' % (bookid)
res = cursor.execute(sql)
if res:
sql = 'SELECT * from borrow where 书号="%s" and ID="%s"' % (bookid, self.loginID)
res = cursor.execute(sql)
borrowinfo = cursor.fetchall()
if res:
nowtime = time.strftime("%Y-%m-%d", time.localtime())
sql = 'SELECT * FROM item where ID="%s" and time="%s" and type= "return" and bookid="%s"' % (
self.loginID, nowtime, bookid)
res = cursor.execute(sql)
if res:
QMessageBox.warning(self, "警告", "请勿重复提交!", QMessageBox.Yes)
else:
sql = 'INSERT INTO item(bookid,ID,time,type) VALUES ("%s","%s","%s","return")' % (
bookid, self.loginID, nowtime)
cursor.execute(sql)
conn.commit()
QMessageBox.warning(self, "提示", "提交成功!", QMessageBox.Yes)
else:
QMessageBox.warning(self, "警告", "您未借过这本书!", QMessageBox.Yes)
else:
QMessageBox.warning(self, "警告", "书号输入错误!请重新输入!", QMessageBox.Yes)
# 05 查询所有书籍
def selectallbook(self):
sql = 'SELECT * FROM books'
cursor.execute(sql)
books = cursor.fetchall()
booknumber = len(books)
self.tableWidget.setRowCount(booknumber)
for i in range(booknumber):
book = books[i]
self.tableWidget.setItem(i, 0, QTableWidgetItem(book[0]))
self.tableWidget.setItem(i, 1, QTableWidgetItem(book[1]))
self.tableWidget.setItem(i, 2, QTableWidgetItem(book[2]))
self.tableWidget.setItem(i, 3, QTableWidgetItem(book[3]))
self.tableWidget.setItem(i, 4, QTableWidgetItem(book[5]))
self.tableWidget.setItem(i, 5, QTableWidgetItem(str(book[7])))
self.tableWidget.setItem(i, 6, QTableWidgetItem(str(book[8])))
self.tableWidget.setItem(i, 7, QTableWidgetItem(book[9]))
self.tableWidget.setItem(i, 8, QTableWidgetItem(str(book[10])))
# 06 条件查询书籍
def selectbook(self):
bookname = self.bookid.text()
bookid = self.bookname.text()
bookauthor = self.author.text()
booktype = self.type.text()
bookpress = self.press.text()
an = 0
if bookname:
bookname = ' 书名="%s"' % (bookname)
an = 1
if bookid:
if an == 1:
bookid = ' and 书号="%s"' % (bookid)
else:
bookid = ' 书号="%s"' % (bookid)
an = 1
if bookauthor:
if an == 1:
bookauthor = 'and 作者="%s"' % (bookauthor)
else:
bookauthor = '作者="%s"' % (bookauthor)
an = 1
if booktype:
if an == 1:
booktype = ' and 类型="%s"' % (booktype)
else:
booktype = ' 类型="%s"' % (booktype)
an = 1
if bookpress:
if an == 1:
bookpress = ' and 出版社="%s"' % (bookpress)
else:
bookpress = ' 出版社="%s"' % (bookpress)
sql1 = 'SELECT * FROM books where'
sql = sql1 + bookname + bookid + bookauthor + booktype + bookpress
res = cursor.execute(sql)
books = cursor.fetchall()
if res:
booknumber = len(books)
self.tableWidget.setRowCount(booknumber)
for i in range(booknumber):
book = books[i]
self.tableWidget.setItem(i, 0, QTableWidgetItem(book[0]))
self.tableWidget.setItem(i, 1, QTableWidgetItem(book[1]))
self.tableWidget.setItem(i, 2, QTableWidgetItem(book[2]))
self.tableWidget.setItem(i, 3, QTableWidgetItem(book[3]))
self.tableWidget.setItem(i, 4, QTableWidgetItem(book[5]))
self.tableWidget.setItem(i, 5, QTableWidgetItem(str(book[7])))
self.tableWidget.setItem(i, 6, QTableWidgetItem(str(book[8])))
self.tableWidget.setItem(i, 7, QTableWidgetItem(book[9]))
self.tableWidget.setItem(i, 8, QTableWidgetItem(str(book[10])))
else:
QMessageBox.warning(self, "警告", "没有符合条件的书!", QMessageBox.Yes)
# 07 读者修改自己的信息
def alterinfo(self):
name = self.lineEdit_8.text()
sex = self.lineEdit_9.text()
password = self.lineEdit_11.text()
if name:
sql = 'UPDATE readers SET 姓名="%s" WHERE ID="%s"' % (name, self.loginID)
print(sql)
cursor.execute(sql)
conn.commit()
if sex == '男' or sex == '女':
sql = 'UPDATE readers SET 性别="%s" WHERE ID="%s"' % (sex, self.loginID)
print(sql)
cursor.execute(sql)
conn.commit()
elif sex != '':
QMessageBox.warning(self, "警告", "性别输入错误,请输入男/女!", QMessageBox.Yes)
if password:
sql = 'UPDATE readers SET password="%s" WHERE ID="%s"' % (password, self.loginID)
print(sql)
cursor.execute(sql)
conn.commit()
self.getreaderinfo()
# 08 支付欠款(链接支付接口)
def paymoney(self):
money = 0.00
sql = 'UPDATE readers SET 欠款="%f" WHERE ID="%s"' % (money, self.loginID)
cursor.execute(sql)
conn.commit()
self.getreaderinfo()