public int ComparedWithRecent(HydrologicEntityItem item, DateTime fromDate, DateTime toDate)
{
Models.HydroModel db = new Models.HydroModel();
var datas = db.hydrologicaldata;
var stations = db.hydrologicalstation;
var query = from d in datas
where (d.Time < toDate) && (d.Time > fromDate)
where d.StationId.Equals(item.Stationid)
orderby d.Time descending
select new
{
RecordId = d.RecordId,
StationId = d.StationId,
L = d.L,
Q = d.Q,
WL1 = d.WL1,
WL2 = d.WL2,
Time = d.Time,
IsSign = d.IsSign,
};
try
{
var first = query.First();
var second = query.Skip(1).Take(1).Single();
if (first == null || second == null)
{
return(0);
}
else
{
if ((first.L - second.L) > 0.001)
{
return(1);
}
else if ((first.L - second.L) < -0.001)
{
return(-1);
}
else
{
return(0);
}
}
}
catch (Exception)
{
return(0);
}
}
public int GetLastWarningData(DateTime fromDate, DateTime toDate, string Uid, out HydrologicEntityItem item, out bool IsBeyond, out double OverWarningLevel)
{
//public string Stationid { get; set; } //站点号
//public string Name { get; set; } //站名
//public string Basin { get; set; } //流域
//public string Province { get; set; } //省区
//public string River { get; set; } //河流名
//public DateTime Time { get; set; } //时间
//public double Level { get; set; } //水位（河道站）
//public double WarningLevel { get; set; } //警戒水位（河道站）
//public double OverWarningLevel { get; set; } //超警戒水位
//public bool IsBeyond { get; set; } //是否已经超过警戒水位
//public Trend ComparedBefore { get; set; } //水位与之前比较的趋势
Models.HydroModel db = new Models.HydroModel();
item = new HydrologicEntityItem();
var datas = db.hydrologicaldata;
var stations = db.hydrologicalstation;
var query = (from d in datas
where (d.Time < toDate) && (d.Time > fromDate)
where d.StationId.Equals(Uid)
orderby d.Time descending
select new
{
L = d.L,
WL1 = d.WL1,
Time = d.Time,
}).Take(2);
var queryStation = from s in stations
where s.UID.Equals(Uid)
select new
{
Name = s.Name,
Basin = s.Basin,
AdministrativeRegion = s.AdministrativeRegion,
River = s.River
};
item.Name = queryStation.FirstOrDefault().Name;
item.Basin = queryStation.FirstOrDefault().Basin;
item.Administrativeregion = queryStation.FirstOrDefault().AdministrativeRegion;
item.River = queryStation.FirstOrDefault().River;
try
{
var first = query.First();
var second = query.Skip(1).Take(1).Single();
if (first == null || second == null)
{
IsBeyond = false;
OverWarningLevel = 0;
return(0);
}
else
{
item.L = (double)first.L;
item.Wl1 = (double)first.WL1;
item.Time = (DateTime)first.Time;
if (first.L > first.WL1)
{
IsBeyond = true;
}
else
{
IsBeyond = false;
}
OverWarningLevel = (double)first.L - (double)first.WL1;
if ((first.L - second.L) > 0.001)
{
return(1);
}
else if ((first.L - second.L) < -0.001)
{
return(-1);
}
else
{
return(0);
}
}
}
catch (Exception)
{
IsBeyond = false;
OverWarningLevel = 0;
return(0);
}
}
public HydrologicEntity RetrieveHighestEntity(DateTime fromDate, DateTime toDate, string type)
{
var entity = new HydrologicEntity();
entity.Items = new List <HydrologicEntityItem>();
var listRepeat = new List <HydrologicEntityItem>();
Models.HydroModel db = new Models.HydroModel();
var datas = db.hydrologicaldata;
var stations = db.hydrologicalstation;
var query = from d in datas
join s in stations
on d.StationId equals s.UID
where (d.Time < toDate) && (d.Time > fromDate)
where s.Type.Equals(type)
select new
{
RecordId = d.RecordId,
StationId = d.StationId,
L = d.L,
Q = d.Q,
WL1 = d.WL1,
WL2 = d.WL2,
Time = d.Time,
IsSign = d.IsSign,
Name = s.Name,
Longitude = s.Longitude,
Latitude = s.Latitude,
River = s.River,
Hydrographicnet = s.HydrographicNet,
Basin = s.Basin,
Administrativeregion = s.AdministrativeRegion,
Address = s.Address,
Type = s.Type
};
foreach (var data in query)
{
HydrologicEntityItem item = new HydrologicEntityItem();
item.Recordid = data.RecordId;
item.Stationid = data.StationId;
try
{
item.L = (double)data.L;
}
catch (InvalidOperationException)
{
item.L = double.NaN;
}
try
{
item.Q = (double)data.Q;
}
catch (InvalidOperationException)
{
item.Q = double.NaN;
}
try
{
item.Wl1 = (double)data.WL1;
}
catch (InvalidOperationException)
{
item.Wl1 = double.NaN;
}
try
{
item.Wl2 = (double)data.WL2;
}
catch (InvalidOperationException)
{
item.Wl2 = double.NaN;
}
item.Time = (DateTime)data.Time;
try
{
item.Issign = (bool)data.IsSign;
}
catch (InvalidOperationException)
{
item.Issign = false;
}
item.Name = data.Name;
try
{
item.Longitude = (double)data.Longitude;
}
catch (InvalidOperationException)
{
item.Longitude = double.NaN;
}
try
{
item.Latitude = (double)data.Latitude;
}
catch (InvalidOperationException)
{
item.Latitude = double.NaN;
}
item.River = data.River;
item.Hydrographicnet = data.Hydrographicnet;
item.Basin = data.Basin;
item.Administrativeregion = data.Administrativeregion;
item.Address = data.Address;
item.Type = data.Type;
listRepeat.Add(item);
}
var queryNotRepeat = from t in listRepeat
group t by t.Stationid into g
select new
{
RecordId = g.FirstOrDefault().Recordid,
StationId = g.FirstOrDefault().Stationid,
L = g.Max(tg => tg.L),
Q = g.Max(tf => tf.Q),
WL1 = g.FirstOrDefault().Wl1,
WL2 = g.FirstOrDefault().Wl2,
Time = g.FirstOrDefault().Time,
IsSign = g.FirstOrDefault().Issign,
Name = g.FirstOrDefault().Name,
Longitude = g.FirstOrDefault().Longitude,
Latitude = g.FirstOrDefault().Latitude,
River = g.FirstOrDefault().River,
Hydrographicnet = g.FirstOrDefault().Hydrographicnet,
Basin = g.FirstOrDefault().Basin,
Administrativeregion = g.FirstOrDefault().Administrativeregion,
Address = g.FirstOrDefault().Address,
Type = g.FirstOrDefault().Type
};
foreach (var data in queryNotRepeat)
{
HydrologicEntityItem item = new HydrologicEntityItem();
item.Recordid = data.RecordId;
item.Stationid = data.StationId;
item.L = data.L;
item.Q = data.Q;
item.Wl1 = data.WL1;
item.Wl2 = data.WL2;
item.Time = (DateTime)data.Time;
item.Issign = data.IsSign;
item.Name = data.Name;
item.Longitude = data.Longitude;
item.Latitude = data.Latitude;
item.River = data.River;
item.Hydrographicnet = data.Hydrographicnet;
item.Basin = data.Basin;
item.Administrativeregion = data.Administrativeregion;
item.Address = data.Address;
item.Type = data.Type;
entity.Items.Add(item);
}
return(entity);
}