57 lines
1.8 KiB
C#
57 lines
1.8 KiB
C#
using System;
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using System.Linq;
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namespace BLL
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{
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/// <summary>
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/// 图纸标注信息服务。
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/// </summary>
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public static class DrawingInfoService
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{
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/// <summary>
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/// 根据附件文件标识获取图纸 JSON。
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/// </summary>
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public static string GetDrawingJson(string attachFileId)
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{
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if (string.IsNullOrWhiteSpace(attachFileId))
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{
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return null;
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}
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return Funs.DB.HJGL_DrawingInfo
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.Where(x => x.AttachFileId == attachFileId)
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.Select(x => x.DrawingJson)
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.FirstOrDefault();
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}
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/// <summary>
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/// 新增或更新图纸标注信息，同一 AttachFileId 只保留一条记录。
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/// </summary>
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public static void SaveDrawingInfo(string attachFileId, string drawingName, string drawingJson)
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{
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if (string.IsNullOrWhiteSpace(attachFileId))
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{
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throw new ArgumentException("附件文件标识不能为空。", "attachFileId");
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}
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Model.SGGLDB db = Funs.DB;
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Model.HJGL_DrawingInfo drawingInfo = db.HJGL_DrawingInfo
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.FirstOrDefault(x => x.AttachFileId == attachFileId);
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if (drawingInfo == null)
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{
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drawingInfo = new Model.HJGL_DrawingInfo
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{
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DrawingInfoId = SQLHelper.GetNewID(),
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AttachFileId = attachFileId
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};
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db.HJGL_DrawingInfo.InsertOnSubmit(drawingInfo);
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}
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drawingInfo.DrawingName = string.IsNullOrWhiteSpace(drawingName) ? null : drawingName;
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drawingInfo.DrawingJson = string.IsNullOrWhiteSpace(drawingJson) ? "{}" : drawingJson;
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db.SubmitChanges();
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}
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}
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}
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