Exemple #1
0
 /// <summary>
 /// 导入时:把中文列头翻译成英文列头(同时处理列头结构)。
 /// 并返回字典:key:列头,value:格式化名
 /// </summary>
 public static Dictionary <string, string> FormatterTitle(MDataTable dt, MDataRow info, string objName)
 {
     if (info == null)
     {
         return(GridConfig.SetHeaderField(dt, objName));
     }
     else
     {
         Dictionary <string, string> formatDic = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
         MDataTable infoConfig = GetExcelInfo(info.Get <string>(0));
         if (infoConfig != null)
         {
             //附加自定义列。
             foreach (var configRow in infoConfig.Rows)
             {
                 string formatter = configRow.Get <string>(Config_ExcelInfo.Formatter);
                 if (!string.IsNullOrEmpty(formatter) && formatter[0] != '#')//增加默认值的列。
                 {
                     string excelName = configRow.Get <string>(Config_ExcelInfo.ExcelName);
                     if (!dt.Columns.Contains(excelName))
                     {
                         MCellStruct ms = new MCellStruct(excelName, System.Data.SqlDbType.NVarChar);
                         ms.TableName = configRow.Get <string>(Config_ExcelInfo.TableName);
                         dt.Columns.Insert(dt.Columns.Count - 1, ms);
                     }
                 }
             }
             MDataRow infoRow;
             foreach (MCellStruct item in dt.Columns)
             {
                 infoRow = infoConfig.FindRow(Config_ExcelInfo.ExcelName + "='" + item.ColumnName + "'");
                 if (infoRow == null && item.ColumnName.IndexOf('_') > 0) // 兼容只找一级的映射列。
                 {
                     string columnName = item.ColumnName.Split('_')[0];
                     infoRow = infoConfig.FindRow(Config_ExcelInfo.ExcelName + "='" + columnName + "'");
                 }
                 if (infoRow != null)
                 {
                     string field = infoRow.Get <string>(Config_ExcelInfo.Field);
                     if (string.IsNullOrEmpty(field))
                     {
                         continue;
                     }
                     item.Description = item.ColumnName;//把中文列名放到描述里。
                     item.TableName   = infoRow.Get <string>(Config_ExcelInfo.TableName);
                     if (string.Compare(item.ColumnName, field, StringComparison.OrdinalIgnoreCase) != 0)
                     {
                         int index = dt.Columns.GetIndex(field);
                         if (index < 0)
                         {
                             item.ColumnName = field;//
                         }
                         else // 字段同名
                         {
                             item.ColumnName = item.TableName + "." + field;
                             //修改上一个,也增加表名。
                             dt.Columns[index].ColumnName = dt.Columns[index].TableName + "." + dt.Columns[index].ColumnName;
                         }
                     }
                     string formatter = infoRow.Get <string>(Config_ExcelInfo.Formatter);
                     if (!string.IsNullOrEmpty(formatter)) // 需要格式化的项
                     {
                         if (formatter.Length > 2 && formatter[0] == '#')
                         {
                             //item.SqlType = System.Data.SqlDbType.NVarChar;//重置数据类型(int数据将格式成文本)
                             formatDic.Add(item.ColumnName, formatter.Substring(1).Split(new string[] { "=>" }, StringSplitOptions.None)[0]);
                         }
                         else
                         {
                             item.DefaultValue = SqlCode.FormatPara(formatter);//如果不是#开头的,设置为默认值(同时处理@参数)。
                         }
                     }
                 }
             }
         }
         return(formatDic);
     }
 }
Exemple #2
0
        /// <summary>
        /// 批量更新或插入。
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="excelRow"></param>
        /// <returns></returns>
        public static bool AcceptChanges(MDataTable dt, MDataRow excelRow, string objName = null)
        {
            if (excelRow == null)
            {
                MDataTable dtImportUnique = GridConfig.GetList(objName, GridConfig.SelectType.ImportUnique);
                string[]   names          = null;
                if (dtImportUnique != null && dtImportUnique.Rows.Count > 0)
                {
                    names = new String[dtImportUnique.Rows.Count];
                    for (int i = 0; i < dtImportUnique.Rows.Count; i++)
                    {
                        names[i] = dtImportUnique.Rows[i].Get <string>(Config_Grid.Field);
                    }
                }
                return(dt.AcceptChanges(AcceptOp.Auto, CrossDb.GetConn(dt.TableName), names));
            }
            bool result = true;

            //获取相关配置
            string[]   tables      = excelRow.Get <string>(Config_Excel.TableNames).Split(',');
            MDataTable configTable = GetExcelInfo(excelRow.Get <string>(Config_Excel.ExcelID));

            Dictionary <string, string> rowPrimaryValue   = new Dictionary <string, string>(); //存档每个表每行的主键值。
            Dictionary <string, string> wherePrimaryValue = new Dictionary <string, string>(); //存档where条件对应的主键值。
            int acceptType = excelRow.Get <int>(Config_Excel.AcceptType);

            using (MAction action = new MAction(CrossDb.GetEnum(tables[0])))
            {
                action.SetAopState(AopOp.CloseAll);
                action.BeginTransation();
                AppConfig.Debug.OpenDebugInfo = false;
                IExcelConfig excelConfigExtend = ExcelConfigFactory.GetExcelConfigExtend();
                foreach (var table in tables)
                {
                    GC.Collect();//后面的Fill查询代码循环上万次会增长太多内存,提前调用,能降低内存。
                    action.ResetTable(table);
                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        action.Data.Clear();
                        var row = dt.Rows[i];
                        foreach (var cell in row)                                                                    //遍历所有数据行
                        {
                            if (cell.Struct.TableName != null && cell.Struct.TableName.ToLower() == table.ToLower()) //过滤出属于本表的字段。
                            {
                                string[] items      = cell.ColumnName.Split('.');
                                string   columnName = items[items.Length - 1];
                                action.Set(columnName, cell.Value);
                            }
                        }


                        #region 检测是否需要插入外键。
                        MDataTable foreignTable = configTable.FindAll("TableName='" + table + "' and IsForeignkey=1");
                        if (foreignTable != null)
                        {
                            foreach (var foreignRow in foreignTable.Rows)
                            {
                                string formatter  = foreignRow.Get <string>("Formatter", "").Trim('.');
                                string fTableName = foreignRow.Get <string>("ForeignTable");
                                if (string.IsNullOrEmpty(formatter))
                                {
                                    //获取主键外值键
                                    string key = fTableName + i;
                                    if (rowPrimaryValue.ContainsKey(key))
                                    {
                                        string value = rowPrimaryValue[key];
                                        action.Set(foreignRow.Get <string>("Field"), value);
                                    }
                                }
                                else // 从其它自定义列取值。
                                {
                                    MDataCell cell = row[formatter];
                                    cell = cell ?? row[fTableName + "." + formatter];
                                    if (cell != null)
                                    {
                                        action.Set(foreignRow.Get <string>("Field"), cell.Value);
                                    }
                                }
                            }
                            foreignTable = null;
                        }
                        #endregion


                        #region //获取唯一联合主键,检测是否重复

                        string where = string.Empty;
                        MDataRowCollection rowList = configTable.FindAll("TableName='" + table + "' and IsUnique=1");
                        if (rowList != null && rowList.Count > 0)
                        {
                            bool             isUniqueOr = excelRow.Get <bool>(Config_Excel.WhereType);
                            List <MDataCell> cells      = new List <MDataCell>();
                            StringBuilder    errText    = new StringBuilder();
                            int errorCount = 0;
                            foreach (var item in rowList)
                            {
                                var cell = action.Data[item.Get <string>(Config_ExcelInfo.Field)];
                                if (cell != null)
                                {
                                    if (cell.IsNullOrEmpty) // 唯一主键是必填写字段
                                    {
                                        errorCount++;
                                        errText.Append("[" + LangConst.The + "" + (i + 1) + LangConst.Row + "]:" + cell.Struct.ColumnName + "[" + cell.Struct.Description + "]" + LangConst.CantBeEmpty + "!\r\n");
                                    }
                                    else
                                    {
                                        cells.Add(cell);
                                    }
                                }
                            }
                            if (errorCount > 0)
                            {
                                if (!isUniqueOr || errorCount == rowList.Count)
                                {
                                    result         = false;
                                    dt.DynamicData = new Exception(errText.ToString());
                                    goto err;
                                }
                            }

                            MDataCell[] item2s = cells.ToArray();
                            where   = action.GetWhere(!isUniqueOr, item2s);
                            item2s  = null;
                            rowList = null;
                        }
                        if (!string.IsNullOrEmpty(where))
                        {
                            MDataRow data = action.Data.Clone();
                            action.SetSelectColumns(action.Data.PrimaryCell.ColumnName);
                            if (action.Fill(where))//根据条件查出主键ID (数据被清空)
                            {
                                string key = table + where;
                                if (wherePrimaryValue.ContainsKey(key))
                                {
                                    rowPrimaryValue.Add(table + i, wherePrimaryValue[key]);//记录上一个主键值。
                                }
                                else
                                {
                                    rowPrimaryValue.Add(table + i, action.Get <string>(action.Data.PrimaryCell.ColumnName)); //记录上一个主键值。
                                }
                                action.Data.LoadFrom(data, RowOp.IgnoreNull, false);                                         //还原数据。
                                if (action.Data.GetState() == 2 && acceptType != 1)                                          //排除掉仅插入选项
                                {
                                    ExcelResult eResult = excelConfigExtend.BeforeUpdate(action.Data, row);
                                    if (eResult == ExcelResult.Ignore || (eResult == ExcelResult.Default && action.Update(where)))
                                    {
                                        continue;//已经存在了,更新,准备下一条。
                                    }
                                    else
                                    {
                                        result         = false;
                                        dt.DynamicData = new Exception("[" + LangConst.The + (i + 1) + LangConst.Row + "]:" + action.DebugInfo);
                                        goto err;
                                    }
                                }
                                else
                                {
                                    continue;//已经存在了,同时没有可更新字段
                                }
                            }
                            else if (action.RecordsAffected == -2)//产生错误信息,发生异常
                            {
                                result         = false;
                                dt.DynamicData = new Exception("[" + LangConst.The + (i + 1) + LangConst.Row + "]:" + action.DebugInfo);
                                goto err;
                            }
                        }
                        #endregion

                        if (action.Data.GetState() == 0 || acceptType == 2) //仅更新则跳过插入
                        {
                            continue;                                       //没有可映射插入的列。
                        }

                        //插入前,调用函数(插入特殊主键等值)
                        string      errMsg;
                        ExcelResult excelResult = excelConfigExtend.BeforeInsert(action.Data, row, out errMsg);
                        if (excelResult == ExcelResult.Ignore)
                        {
                            continue;
                        }

                        if (excelResult == ExcelResult.Error || !action.Insert(InsertOp.ID))
                        {
                            result = false;
                            action.RollBack();
                            if (string.IsNullOrEmpty(errMsg))
                            {
                                errMsg = "[" + LangConst.The + (i + 1) + LangConst.Row + "]:" + action.DebugInfo;
                            }
                            dt.DynamicData = new Exception(errMsg);
                            excelConfigExtend.OnInsertError(errMsg, dt);
                            goto err;
                        }
                        //插入后事件(可以触发其它事件)
                        excelConfigExtend.AfterInsert(action.Data, row, i == dt.Rows.Count - 1);
                        string primaryKey = action.Get <string>(action.Data.PrimaryCell.ColumnName);
                        rowPrimaryValue.Add(table + i, primaryKey);//记录上一个主键值。
                        if (!wherePrimaryValue.ContainsKey(table + where))
                        {
                            wherePrimaryValue.Add(table + where, primaryKey);
                        }
                    }
                }
err:
                action.EndTransation();
                excelConfigExtend.Dispose();
            }
            return(result);
        }