简单实现变量的历史记录功能
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@@ -163,4 +163,10 @@ public class DbVariableData
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/// </summary>
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[Navigate(typeof(DbVariableDataMqtt), "VariableDataId", "MqttId")]
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public List<DbMqtt>? Mqtts { get; set; }
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/// <summary>
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/// 关联的历史记录列表。
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/// </summary>
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[Navigate(NavigateType.OneToMany, nameof(DbVariableDataHistory.VariableDataId))]
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public List<DbVariableDataHistory>? HistoryRecords { get; set; }
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}
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49
Data/Entities/DbVariableDataHistory.cs
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49
Data/Entities/DbVariableDataHistory.cs
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@@ -0,0 +1,49 @@
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using System;
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using SqlSugar;
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namespace PMSWPF.Data.Entities;
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/// <summary>
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/// 表示数据库中的变量数据历史实体。
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/// </summary>
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[SugarTable("VarDataHistory")]
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public class DbVariableDataHistory
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{
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/// <summary>
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/// 历史记录唯一标识符。
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/// </summary>
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[SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
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public int Id { get; set; }
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/// <summary>
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/// 变量名称。
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/// </summary>
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public string Name { get; set; }
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/// <summary>
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/// 节点ID,用于标识变量在设备或系统中的唯一路径。
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/// </summary>
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[SugarColumn(IsNullable = true)]
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public string NodeId { get; set; } = String.Empty;
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/// <summary>
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/// 变量当前原始数据值。
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/// </summary>
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public string DataValue { get; set; } = String.Empty;
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/// <summary>
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/// 关联的DbVariableData的ID。
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/// </summary>
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public int VariableDataId { get; set; }
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/// <summary>
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/// 关联的DbVariableData实体。
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/// </summary>
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[Navigate(NavigateType.ManyToOne, nameof(VariableDataId))]
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public DbVariableData? VariableData { get; set; }
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/// <summary>
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/// 历史记录的时间戳。
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/// </summary>
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public DateTime Timestamp { get; set; } = DateTime.Now;
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}
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