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30 lines
766 B
30 lines
766 B
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using WeighBusiness.BO;
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using WeighBusiness.Utils;
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using WeighBusiness.Utils.SqlUtils;
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namespace WeighBusiness.BL
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{
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public static class EntityBL
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{
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public static T LoadMinDmo<T>(string tableName, long id)
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where T : Entity, new()
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{
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const string querySql = "select RowVersion from {0} where id={1}";
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var sql = querySql.FormatWith(tableName, id);
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var rowVersion = SqlHelperEx.DoQuery<int>(sql, obj => (int)obj);
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return new T() { ID = id, RowVersion = rowVersion };
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}
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public static bool EnsureStateSame<T>(T dmo)
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where T : Entity, new()
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{
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var minDmo = LoadMinDmo<T>(dmo.TableName, dmo.ID);
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return minDmo.RowVersion == dmo.RowVersion;
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}
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}
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}
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