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updated to support DbGeography type #94

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updated to support DbGeography type #94

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61 changes: 17 additions & 44 deletions EntityFramework.Utilities/EntityFramework.Utilities/EFDataReader.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
using System;
using Microsoft.SqlServer.Types;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
Expand All @@ -11,53 +12,16 @@ public class EFDataReader<T> : DbDataReader
{
public IEnumerable<T> Items { get; set; }
public IEnumerator<T> Enumerator { get; set; }
public IList<string> Properties { get; set; }
public List<Func<T, object>> Accessors { get; set; }

public EFDataReader(IEnumerable<T> items, IEnumerable<ColumnMapping> properties)
public IList<string> PropertyNames { get; set; }
public IList<PropertyInfo> Properties { get; set; }
public EFDataReader(IEnumerable<T> items)
{
Properties = properties.Select(p => p.NameOnObject).ToList();
Accessors = properties.Select(p =>
{
if (p.StaticValue != null)
{
Func<T,object> func = x => p.StaticValue;
return func;
}

var parts = p.NameOnObject.Split('.');

PropertyInfo info = typeof(T).GetProperty(parts[0]);
var method = typeof(EFDataReader<T>).GetMethod("MakeDelegate");
var generic = method.MakeGenericMethod(info.PropertyType);

var getter = (Func<T, object>)generic.Invoke(this, new object[] { info.GetGetMethod(true) });

var temp = info;
foreach (var part in parts.Skip(1))
{
var i = temp.PropertyType.GetProperty(part);
var g = i.GetGetMethod();

var old = getter;
getter = x => g.Invoke(old(x), null);

temp = i;
}


return getter;
}).ToList();
Properties = typeof(T).GetProperties().ToList();
PropertyNames = Properties.Select(p => p.Name).ToList();
Items = items;
Enumerator = items.GetEnumerator();
}

public static Func<T, object> MakeDelegate<U>(MethodInfo @get)
{
var f = (Func<T, U>)Delegate.CreateDelegate(typeof(Func<T, U>), @get);
return t => f(t);
}

public override void Close()
{
this.Enumerator = null;
Expand Down Expand Up @@ -95,7 +59,16 @@ public override int RecordsAffected

public override object GetValue(int ordinal)
{
return this.Accessors[ordinal](this.Enumerator.Current);
if (Properties[ordinal].PropertyType == typeof(DbGeography))
{
var data = Properties[ordinal].GetValue(this.Enumerator.Current, null) as DbGeography;
if (data != null)
{
return SqlGeography.Point(data.Latitude.Value, data.Longitude.Value, 4326);
}
return null;
}
return Properties[ordinal].GetValue(this.Enumerator.Current, null);
}

public override int GetOrdinal(string name)
Expand Down