修改bug

penley277 · Nov 20, 2019 · 6f03df0 · 6f03df0
1 parent 3c2adf8
commit 6f03df0
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Showing 3 changed files with 14 additions and 3 deletions.
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
diff --git a/list/BorrowInformList.py b/list/BorrowInformList.py
@@ -28,11 +28,13 @@ def addInform(self, other):
 
         if book.getBookCnt() == 0:  # 如果书籍已经借空
             return False
-        self.db.update_values('book', {'bookCnt': book.getBookCnt() - 1, 'borrowCnt': book.getBorrowCnt() + 1},
-                              '%s%s%s' % ('where bookNum=\'', other.getBookNo(), '\''))
+
         self.history.append(other.getBookNo())
         self.db.insert_values('borrowInfo', [other.getNo(), other.getStuNo(), other.getBookNo(), other.getBorrowTime(),
                                              other.getFinishTime()])
+
+        self.db.update_values('book', {'bookCnt': book.getBookCnt() - 1, 'borrowCnt': book.getBorrowCnt() + 1},
+                              '%s%s%s' % ('where bookNum=\'', other.getBookNo(), '\''))
         return True
 
     def deleteInform(self, no):
@@ -44,9 +46,9 @@ def deleteInform(self, no):
         select = self.db.select_items('borrowInfo', '*', '%s%s%s' % ('where infoId=\'', no, '\''))
         book = self.bookList.getBookByNo(select[0][2])
 
+        self.db.delete_values('borrowInfo', '%s%s' % ('where infoId=', no))
         self.db.update_values('book', {'bookCnt': book.getBookCnt() + 1, 'borrowCnt': book.getBorrowCnt() - 1},
                               '%s%s%s' % ('where bookNum=\'', book.getBookNo(), '\''))
-        self.db.delete_values('borrowInfo', '%s%s' % ('where infoId=', no))
 
     def getInformByStudNo(self, no):
         select = self.db.select_items('borrowInfo', '*', '%s%s%s' % ('where studNo=\'', no, '\''))

diff --git a/list/StudentList.py b/list/StudentList.py
@@ -21,6 +21,14 @@ def addStu(self, stu):
                                           stu.getMajor(), stu.getClassNum(),
                                           stu.getPhoneNum(), stu.getPassWd()])
 
+    def removeBook(self, num):
+        """
+        从数据库中删除学生
+        :param num: 删除学生的学号
+        :return:
+        """
+        self.db.delete_values('student', '%s%s%s' % ('where studNum=\'', num, '\''))
+
     def getStuByNo(self, no):
         """
         使用学生的学号获取学生的信息