cyf
283 lines
12 KiB
C#
283 lines
12 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data;
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using Lskj.Business;
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using Lskj.Business.Impl;
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using Lskj.Core;
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using Lskj.Data;
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namespace Lskj.Control.Model
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{
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/// <summary>
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/// 审核改动日志处理类。
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/// 用来比较单据主表原始数据和当前表头控件值，并把发生变化的字段写入 P_SystemAuditChangeLog。
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/// </summary>
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public class AuditChangeLog
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{
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private const string TableName = "P_SystemAuditChangeLog";
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private const int MaxOrderNumberLength = 50;
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private const int MaxTextLength = 500;
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/// <summary>
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/// 比较表头字段是否发生变化，并保存审核改动日志。
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/// 返回 false 时，errorMessage 会一次性返回所有未记录成功的字段。
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/// </summary>
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/// <param name="drBillInfoMsg">改动前数据（单表数据或者单据主表数据）</param>
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/// <param name="controlObj">控件 mycontrol</param>
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/// <param name="orderNumber">单号</param>
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/// <param name="stepCode">步骤号</param>
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/// <param name="operatorId">登录人id</param>
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/// <returns></returns>
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public static bool SaveHeaderChangeLog(DataRow drBillInfoMsg, MyControl controlObj, string orderNumber, string stepCode, string operatorId)
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{
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if (SystemInfo.Instance.AuditChangeRecord)
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{
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CreateModificationRecordTable();
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string errorMessage = string.Empty;
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// 原始主表数据或控件对象为空时，没有可比较的数据，直接返回成功。
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if (drBillInfoMsg == null || controlObj == null || controlObj.ControlModels == null)
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return true;
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List<string> errorFields = new List<string>();
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// 遍历当前界面的表头控件模型，逐个比较可保存字段。
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foreach (ControlModel model in controlObj.ControlModels)
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{
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string currentFieldName = model == null ? string.Empty : model.FieldName;
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try
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{
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// 只比较可保存、界面真实存在、原始主表行中也存在的普通字段。
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if (!CanCompare(model, drBillInfoMsg, controlObj))
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continue;
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// 旧值来自打开审核界面时加载出来的主表原始行。
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string oldValue = GetRowValue(drBillInfoMsg, model.FieldName);
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// 新值来自当前界面控件值，也就是用户修改后的值。
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string newValue = controlObj.GetControlValue(model);
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if (newValue == "****")
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continue;
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// 日期、数字、空值先做统一处理，避免显示格式不同造成误判。
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if (IsSameValue(oldValue, newValue))
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continue;
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// 字段确实发生变化后写入日志；相同单号、步骤、字段已存在时执行更新。
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SaveChangeLog(orderNumber, model.FieldName, oldValue, newValue, stepCode, operatorId);
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}
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catch (Exception ex)
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{
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// 单个字段记录失败时先收集错误，继续处理后续字段，最后一次性提示。
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errorFields.Add(GetErrorFieldName(model, currentFieldName) + "（" + ex.Message + "）");
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}
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}
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if (errorFields.Count > 0)
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{
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errorMessage = "以下字段审核改动日志未记录：" + Environment.NewLine + string.Join(Environment.NewLine, errorFields.ToArray());
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MessageUtil.Show(errorMessage);
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return false;
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}
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}
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return true;
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}
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/// <summary>
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/// 判断控件字段是否需要参与改动比较。
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/// </summary>
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private static bool CanCompare(ControlModel model, DataRow drBillInfoMsg, MyControl controlObj)
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{
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if (model == null)
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return false;
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// 不保存的字段和图片控件不参与本次表头改动日志记录。
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if (!model.IsSave ||
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model.FieldType == ControlType.LabPic ||
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model.FieldType == ControlType.LabPicEx)
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return false;
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if (string.IsNullOrWhiteSpace(model.FieldName))
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return false;
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// 当前界面上没有真实控件的字段不参与比较。
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if (controlObj.FindControl(model) == null)
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return false;
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// 原始主表行里必须存在同名数据库字段。
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return drBillInfoMsg.Table != null && drBillInfoMsg.Table.Columns.Contains(model.FieldName);
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}
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/// <summary>
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/// 保存单个字段的改动记录。
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/// 如果相同单号、相同步骤、相同字段已存在记录，则更新；否则新增。
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/// </summary>
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private static void SaveChangeLog(string orderNumber, string fieldName, string oldValue, string newValue, string stepCode, string operatorId)
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{
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//orderNumber = orderNumber == null ? string.Empty : orderNumber;
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//fieldName = fieldName == null ? string.Empty : fieldName;
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//oldValue = oldValue == null ? string.Empty : oldValue;
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//newValue = newValue == null ? string.Empty : newValue;
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//orderNumber = orderNumber.Length > MaxOrderNumberLength ? orderNumber.Substring(0, MaxOrderNumberLength) : orderNumber;
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//fieldName = fieldName.Length > MaxTextLength ? fieldName.Substring(0, MaxTextLength) : fieldName;
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//oldValue = oldValue.Length > MaxTextLength ? oldValue.Substring(0, MaxTextLength) : oldValue;
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//newValue = newValue.Length > MaxTextLength ? newValue.Substring(0, MaxTextLength) : newValue;
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//orderNumber = orderNumber.Replace("'", "''");
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//fieldName = fieldName.Replace("'", "''");
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//oldValue = oldValue.Replace("'", "''");
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//newValue = newValue.Replace("'", "''");
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string sql = string.Format(@"if exists (select 1 from {0} where orderNumber = '{1}' and stepCode = {2} and fieldName = N'{3}')
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begin
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update {0}
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set oldValue = N'{4}',
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newValue = N'{5}',
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operatorId = N'{6}'
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where orderNumber =N'{1}'
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and stepCode = N'{2}'
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and fieldName = N'{3}'
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end
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else
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begin
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insert into {0} (orderNumber, fieldName, oldValue, newValue, stepCode, operatorId)
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values (N'{1}', N'{3}', N'{4}', N'{5}', N'{2}', N'{6}')
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end",
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TableName,
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orderNumber,
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stepCode,
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fieldName,
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oldValue,
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newValue,
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operatorId);
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SqlHelper.ExecuteNonQuery(sql);
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}
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/// <summary>
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/// 从原始主表行中读取字段旧值，数据库 NULL 统一按空字符串处理。
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/// </summary>
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private static string GetRowValue(DataRow row, string fieldName)
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{
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if (row[fieldName] == DBNull.Value || row[fieldName] == null)
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return string.Empty;
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return row[fieldName] + "";
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}
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/// <summary>
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/// 获取错误提示中展示的字段名称，优先显示控件标题，没有标题时显示字段名。
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/// </summary>
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private static string GetErrorFieldName(ControlModel model, string fieldName)
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{
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if (model != null && !string.IsNullOrWhiteSpace(model.LabelText))
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return model.LabelText + "[" + model.FieldName + "]";
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return string.IsNullOrWhiteSpace(fieldName) ? "未知字段" : fieldName;
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}
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/// <summary>
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/// 判断两个值是否相同。
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/// 优先按日期、数字进行值比较，最后再按普通字符串比较。
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/// </summary>
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/// <param name="oldValue">原始值</param>
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/// <param name="newValue">当前值</param>
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/// <returns>两个值在统一格式后是否相同</returns>
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public static bool IsSameValue(string oldValue, string newValue)
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{
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oldValue = NormalizeValue(oldValue);
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newValue = NormalizeValue(newValue);
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if (oldValue == string.Empty && newValue == string.Empty)
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return true;
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DateTime oldDate;
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DateTime newDate;
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if (DateTime.TryParse(oldValue, out oldDate) && DateTime.TryParse(newValue, out newDate))
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return oldDate == newDate;
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decimal oldDecimal;
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decimal newDecimal;
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if (decimal.TryParse(oldValue, out oldDecimal) && decimal.TryParse(newValue, out newDecimal))
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return oldDecimal == newDecimal;
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return oldValue == newValue;
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}
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/// <summary>
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/// 比较前统一处理 NULL 和首尾空格。
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/// </summary>
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private static string NormalizeValue(string value)
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{
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return value == null ? string.Empty : value.Trim();
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}
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/// <summary>
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/// 根据单号获取所有审核改动字段名。
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/// </summary>
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/// <param name="orderNumber">单号</param>
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/// <returns>当前单号对应的审核改动字段名集合</returns>
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public static List<string> GetChangeLogFields(string orderNumber)
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{
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List<string> fields = new List<string>();
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if (SystemInfo.Instance.AuditChangeRecord)
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{
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CreateModificationRecordTable();
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orderNumber = orderNumber == null ? string.Empty : orderNumber.Replace("'", "''");
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string sqlValue = string.Format(@"
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select distinct fieldName
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from {0}
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where orderNumber = N'{1}'
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order by fieldName", TableName, orderNumber);
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DataTable dataTable = SqlHelper.ExecuteDataTable(sqlValue);
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if (dataTable == null)
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return fields;
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foreach (DataRow row in dataTable.Rows)
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{
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string fieldName = row["fieldName"] + "";
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if (!string.IsNullOrWhiteSpace(fieldName))
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fields.Add(fieldName);
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}
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}
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return fields;
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}
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/// <summary>
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/// 创建修改记录表
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/// </summary>
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public static void CreateModificationRecordTable()
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{
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if (!Lskj.Business.Impl.BaseImpl.HasExistsTable("P_SystemAuditChangeLog"))
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{
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string sqlValue = string.Format(@"CREATE TABLE P_SystemAuditChangeLog (
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id BIGINT IDENTITY(1,1) NOT NULL PRIMARY KEY,
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orderNumber VARCHAR(50) NOT NULL, -- 单号
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fieldName NVARCHAR(500) NOT NULL, -- 字段名称
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oldValue NVARCHAR(500) NULL, -- 旧值（改动前）
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newValue NVARCHAR(500) NULL, -- 新值（改动后）
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stepCode INT NOT NULL, -- 步骤号
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operatorId int NOT NULL -- 人员id（改动人）
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);");
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BaseImpl.ExecSqlValue(sqlValue);
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}
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}
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}
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}
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