38 lines
1.3 KiB
C#
38 lines
1.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Web;
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using System.Web.Http;
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/// <summary>
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/// AncestralTabletStatisticsController 的摘要描述
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/// </summary>
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public class AncestralTabletStatisticsController:ApiController
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{
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private Model.ezEntities db = new Model.ezEntities();
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[HttpGet]
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[Route("api/ancestraltablet/statistics/positions/availablepositions")]
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public IHttpActionResult GetAvailablePositions()
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{
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var query =
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from a in db.AncestralTabletArea // 区域表
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join p in db.AncestralTabletPosition
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on a.AreaId equals p.AreaId into ap
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from p in ap.DefaultIfEmpty()
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join r in db.AncestralTabletRegistrant
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on p.PositionId equals r.PositionId into pr
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from r in pr.DefaultIfEmpty()
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group new { a, p, r } by new { a.AreaId, a.AreaName } into g
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select new
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{
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AreaId = g.Key.AreaId,
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AreaName = g.Key.AreaName,
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TotalPositions = g.Count(x => x.p != null), // 总位置数
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AvailableCount = g.Count(x => x.p != null && x.r == null) // 可用位置数（未登记）
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};
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var result = query.ToList();
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return Ok(result);
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}
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} |