WCS_Pedestal/WCS.Service/DeviceExtentions.cs

using DbHelper;
using WCS.Entity;
using WCS.Entity.Protocol;
using WCS.Entity.Protocol.Station;

namespace WCS.Service
{
    public static class DeviceExtentions
    {
    }

    public static class TaskExtentions
    {
        public static string AddrCurrent(this WCS_TASK source, Db db)
        {
            var q1 = db.Default.Queryable<WCS_Station520>().Where(v => v.ISLAST && v.Tasknum == source.ID).Select(v => new TemporaryModel
            {
                TYPE = 1,
                CODE = v.DEVICE.CODE
            });
            var q2 = db.Default.Queryable<WCS_RGV521>().Where(v => v.ISLAST && (v.TaskID_1 == source.ID || v.TaskID_2 == source.ID)).Select(v => new TemporaryModel
            {
                TYPE = 2,
                CODE = v.DEVICE.CODE
            });
            var q = db.Default.UnionAll(q1, q2);

            var res = q.OrderBy(v => v.TYPE).First();
            return res == null ? "" : res.CODE;
        }
    }

    public class TemporaryModel
    {
        public int TYPE { get; set; }

        public string CODE { get; set; }
    }
}