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一、项目地址
https://github.com/LinFeng-BingYi/DailyAccountBook
二、新增
1. 增加删除记录功能
1.1 功能详述
- 点击删除按钮后,获取对应行的数据组成字典,用字典的键值对匹配到对应日期的记录元素;
- 接着用该字典数据冲正存款账户余额(实现思路为新增记录时的反向操作),同时删除记录元素;
- 最后再更新表格。
1.2 代码实现
- def deleteTableRow(self, triggeredBtn, tableWidget):
- print("触发了删除按钮")
- # 获取触发信号的控件所在行号
- current_row = tableWidget.indexAt(triggeredBtn.parent().pos()).row()
- if tableWidget == self.tableWidget_expense:
- const_class = expenseConst
- action = 'expense'
- elif tableWidget == self.tableWidget_income:
- const_class = incomeConst
- action = 'income'
- elif tableWidget == self.tableWidget_movement:
- const_class = movementConst
- action = 'movement'
- else:
- print('未知控件触发新增按钮!')
- return
- # 获取待删除行的数据
- old_data_dict = self.getExistTableCell(tableWidget, current_row, const_class)
- if old_data_dict is None:
- print("获取待删除数据失败!!")
- return
- print("待删除记录内容为: \n", old_data_dict)
- if self.file_processor.deleteRecord(old_data_dict, self.dateEdit.text().replace('/', ''), action):
- print("删除成功!")
- # 把删除结果写入文件
- self.file_processor.writeXMLFile(self.lineEdit_file_path.text())
- # 更新self.file_parse_result以及记录表
- records_list = self.file_parse_result[action + 's']
- records_list.pop(current_row)
- self.updateRecordTable(tableWidget, records_list, const_class)
复制代码 其中处理xml文件的方法代码如下:- def deleteRecord(self, old_record_dict, date_str, action):
- e_date = self.getSpecificDateElement(date_str)
- if isinstance(e_date, int):
- print("未找到这一天的数据!")
- return False
- if action == 'expense':
- action_path = ".//expenses"
- record_path = """.//expense[@necessity='{}'][@associatedFund='{}'][value='{}'][category='{}'][detail='{}'][describe='{}'][from='{}']""".format(
- old_record_dict['necessity'],
- old_record_dict['associatedFund'],
- old_record_dict['value'],
- old_record_dict['category'],
- old_record_dict['detail'],
- old_record_dict['describe'],
- old_record_dict['from'])
- elif action == 'income':
- action_path = ".//incomes"
- record_path = """.//income[@associatedFund='{}'][value='{}'][category='{}'][detail='{}'][describe='{}'][to='{}']""".format(
- old_record_dict['associatedFund'],
- old_record_dict['value'],
- old_record_dict['category'],
- old_record_dict['detail'],
- old_record_dict['describe'],
- old_record_dict['to'])
- elif action == 'movement':
- action_path = ".//movements"
- record_path = """.//movement[value='{}'][detail='{}'][describe='{}'][from='{}'][to='{}']""".format(
- old_record_dict['value'],
- old_record_dict['detail'],
- old_record_dict['describe'],
- old_record_dict['from'],
- old_record_dict['to'])
- else:
- print("未知的动账操作!!")
- return False
- # print(record_path)
- e_action = e_date.find(action_path)
- e_record = e_action.find(record_path)
- if e_record is None:
- print("未找到待删除的记录")
- return False
- e_action.remove(e_record)
- if action == 'movement':
- self.modifyBalance(old_record_dict['from'], Decimal(old_record_dict['value']))
- self.modifyBalance(old_record_dict['to'], Decimal(old_record_dict['value']) * (-1))
- else:
- self.reversalVariation(old_record_dict, e_date)
- return True
- def reversalVariation(self, change_dict, e_date):
- """
- Describe: 删除某条记录时,需要冲正原来的记录,将回退对应的存款账户数值变化、以及余额
- Args:
- change_dict: dict
- 记录字典
- e_date: Element
- 指定日期的day元素
- """
- e_variation = e_date.find(".//variation")
- if e_variation is None:
- print("冲正记录时异常!!该记录不存在余额变化")
- return
- if 'from' in change_dict:
- e_fund_variety = e_variation.find(".//fund[category='{}']/out".format(change_dict['from']))
- if e_fund_variety is None:
- print("冲正记录时异常!!该记录不存在余额变化")
- return
- e_fund_variety.text = str((Decimal(e_fund_variety.text) - Decimal(change_dict['value'])).quantize(Decimal('0.00')))
- self.modifyBalance(change_dict['from'], Decimal(change_dict['value']))
- self.reversalAssociatedFund(e_variation, change_dict, 'from')
- if 'to' in change_dict:
- e_fund_variety = e_variation.find(".//fund[category='{}']/in".format(change_dict['to']))
- if e_fund_variety is None:
- print("冲正记录时异常!!该记录不存在余额变化")
- return
- e_fund_variety.text = str((Decimal(e_fund_variety.text) - Decimal(change_dict['value'])).quantize(Decimal('0.00')))
- self.modifyBalance(change_dict['to'], Decimal(change_dict['value'])*(-1))
- self.reversalAssociatedFund(e_variation, change_dict, 'to')
- def reversalAssociatedFund(self, e_variation, change_dict, from_or_to):
- """
- Describe: 冲正关联账户
- Args:
- e_variation: Element
- change_dict: dict
- from_or_to: ['from', 'to']
- """
- # print(change_dict['associatedFund'])
- if 'associatedFund' in change_dict and change_dict['associatedFund'] != 'None':
- print('执行了associatedFund冲正,操作为', from_or_to)
- if e_variation.find(".//fund[category='{}']".format(change_dict['associatedFund'])) is None:
- print("冲正记录时异常!!该记录不存在关联账户余额变化")
- return
- if from_or_to == 'from':
- e_fund_variety = e_variation.find(".//fund[category='{}']/out".format(change_dict['associatedFund']))
- flag = 1
- elif from_or_to == 'to':
- e_fund_variety = e_variation.find(".//fund[category='{}']/in".format(change_dict['associatedFund']))
- flag = -1
- else:
- print('未知的收支动作!')
- return
- e_fund_variety.text = str((Decimal(e_fund_variety.text) - Decimal(change_dict['value'])).quantize(Decimal('0.00')))
- self.modifyBalance(change_dict['associatedFund'], Decimal(change_dict['value'])*flag)
复制代码 2. 增加更新记录功能
2.1 功能详述
- 点击更新按钮后,获取对应行的数据组成新记录字典;
- 同时根据行号获取编辑账本界面的self.file_parse_result属性对应的旧记录字典(每次更新xml文件时,该属性都会同步);
- 接着用旧字典数据冲正存款账户余额(实现思路为新增记录时的反向操作),再用新字典数据更新账户余额,>- 最后再更新self.file_parse_result属性。
2.2 代码实现
- def updateTableRow(self, triggeredBtn, tableWidget):
- print("触发了新增按钮")
- # 获取触发信号的控件所在行号
- current_row = tableWidget.indexAt(triggeredBtn.parent().pos()).row()
- if tableWidget == self.tableWidget_expense:
- const_class = expenseConst
- action = 'expense'
- elif tableWidget == self.tableWidget_income:
- const_class = incomeConst
- action = 'income'
- elif tableWidget == self.tableWidget_movement:
- const_class = movementConst
- action = 'movement'
- else:
- print('未知控件触发新增按钮!')
- return
- # 获取被更新的旧数据(文件解析后,记录顺序与表格顺序相同)
- old_data_dict = self.file_parse_result[action+'s'][current_row]
- print("旧记录内容为: \n", old_data_dict)
- # 获取更新后的新数据
- new_data_dict = self.getExistTableCell(tableWidget, current_row, const_class)
- if new_data_dict is None:
- print("获取更新后的数据失败!!")
- return
- print("更新后的记录内容为: \n", new_data_dict)
- if self.file_processor.updateRecord(old_data_dict, new_data_dict, self.dateEdit.text().replace('/', ''), action):
- print("更新成功!")
- # 把删除结果写入文件
- self.file_processor.writeXMLFile(self.lineEdit_file_path.text())
- # 更新self.file_parse_result
- self.file_parse_result[action+'s'][current_row] = new_data_dict
- # print(self.file_parse_result)
复制代码 其中处理xml文件的方法代码如下:- def updateRecord(self, old_record_dict, new_record_dict, date_str, action):
- e_date = self.getSpecificDateElement(date_str)
- if isinstance(e_date, int):
- print("未找到这一天的数据!")
- return False
- if action == 'expense':
- action_path = ".//expenses"
- record_path = """.//expense[@necessity='{}'][@associatedFund='{}'][value='{}'][category='{}'][detail='{}'][describe='{}'][from='{}']""".format(
- old_record_dict['necessity'],
- old_record_dict['associatedFund'],
- old_record_dict['value'],
- old_record_dict['category'],
- old_record_dict['detail'],
- old_record_dict['describe'],
- old_record_dict['from'])
- elif action == 'income':
- action_path = ".//incomes"
- record_path = """.//income[@associatedFund='{}'][value='{}'][category='{}'][detail='{}'][describe='{}'][to='{}']""".format(
- old_record_dict['associatedFund'],
- old_record_dict['value'],
- old_record_dict['category'],
- old_record_dict['detail'],
- old_record_dict['describe'],
- old_record_dict['to'])
- elif action == 'movement':
- action_path = ".//movements"
- record_path = """.//movement[value='{}'][detail='{}'][describe='{}'][from='{}'][to='{}']""".format(
- old_record_dict['value'],
- old_record_dict['detail'],
- old_record_dict['describe'],
- old_record_dict['from'],
- old_record_dict['to'])
- else:
- print("未知的动账操作!!")
- return False
- # print(record_path)
- e_action = e_date.find(action_path)
- e_record = e_action.find(record_path)
- if e_record is None:
- print("未找到待删除的记录")
- return False
- # 修改了数值则需要冲正
- if old_record_dict['value'] != new_record_dict['value']:
- # 先冲正原记录数据
- # 在用新数据修改账户变化和余额
- if action == 'movement':
- self.modifyBalance(old_record_dict['from'], Decimal(old_record_dict['value']))
- self.modifyBalance(old_record_dict['to'], Decimal(old_record_dict['value']) * (-1))
- self.modifyBalance(new_record_dict['from'], Decimal(new_record_dict['value']) * (-1))
- self.modifyBalance(new_record_dict['to'], Decimal(new_record_dict['value']))
- else:
- self.reversalVariation(old_record_dict, e_date)
- self.organizeVariation(new_record_dict, e_date)
- # 修改记录数据
- for key in new_record_dict.keys():
- if key == 'necessity':
- e_record.attrib['necessity'] = new_record_dict['necessity']
- elif key == 'associatedFund':
- e_record.attrib['associatedFund'] = new_record_dict['associatedFund']
- else:
- e_record.find(".//"+key).text = str(new_record_dict[key])
- return True
复制代码 3. 优化界面控件(内置spinBox、增加按钮切换日期)
3.1 功能详述
将记录表格数值(value)列内置QSpinBox,以避免存于文件的数值小数点位不一致;增加按钮来控制日期的切换
3.2 效果展示
数值(value)列内置QSpinBox
增加按钮来控制日期的切换3.3 代码实现
- # 内置QDoubleSpinBox
- spinBox = QDoubleSpinBox(decimals=2)# 设置保留小数后2位
- # 设置范围,默认为[0.0, 100.0)。必须在调整数值前设置,否则大于等于100.0时会变成99.99
- spinBox.setRange(0.0, 100000000.0)
- spinBox.setSingleStep(0.1) # 设置步长
- spinBox.setValue(value) # 调整数值
- tableWidget.setCellWidget(current_row, keys_list.index(key), spinBox)
- # 日期切换
- # 利用QDate类的addDays(int)方法
- self.pushButton_prev_day.clicked.connect(lambda: self.dateEdit.setDate(self.dateEdit.date().addDays(-1)))
- self.pushButton_post_day.clicked.connect(lambda: self.dateEdit.setDate(self.dateEdit.date().addDays(1)))
复制代码 三、开发总结
1. 提高代码复用性
最近几篇都没有技术含量,就不总结了。唯一值得一提的就是提高代码复用性。
- 对于支出、收入、转移三种动账类型,字段大量重复,于是创建表格时,将所有列的初始化集中到一个函数中,根据列名执行对应初始化方式。
- 通过设置ExpenseConst、IncomeConst、MovementConst三个具有同名常量的类,更好地支持代码复用
- 第二章删除和新增记录时修改xml文件的方法deleteRecord(old_record_dict, date_str, action)和updateRecord(self, old_record_dict, new_record_dict, date_str, action)是通过action区分动账类型,避免同一个功能需要实现三个方法
来源:https://www.cnblogs.com/LinfengBingyi/p/17756104.html
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