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Return default value processing #24

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Return default value processing #24

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70 changes: 38 additions & 32 deletions src/Z.Data/System.Data.IDataReader/IDataReader.ToEntity.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
// Issues: https://github.com/zzzprojects/Z.ExtensionMethods/issues
// License (MIT): https://github.com/zzzprojects/Z.ExtensionMethods/blob/master/LICENSE
// More projects: https://zzzprojects.com/
// Copyright � ZZZ Projects Inc. All rights reserved.
// Copyright © ZZZ Projects Inc. All rights reserved.
using System;
using System.Collections.Generic;
using System.Data;
Expand All @@ -13,40 +13,46 @@
public static partial class Extensions
{
/// <summary>
/// An IDataReader extension method that converts the @this to an entity.
/// </summary>
/// <typeparam name="T">Generic type parameter.</typeparam>
/// <param name="this">The @this to act on.</param>
/// <returns>@this as a T.</returns>
public static T ToEntity<T>(this IDataReader @this) where T : new()
{
Type type = typeof (T);
PropertyInfo[] properties = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
FieldInfo[] fields = type.GetFields(BindingFlags.Public | BindingFlags.Instance);
/// An IDataReader extension method that converts the @this to an entity.
/// </summary>
/// <typeparam name="T">Generic type parameter.</typeparam>
/// <param name="this">The @this to act on.</param>
/// <returns>@this as a T.</returns>
public static T ToEntity<T>(this IDataReader @this) where T : new()
{
if (@this.Read())
{
Type type = typeof(T);
PropertyInfo[] properties = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
FieldInfo[] fields = type.GetFields(BindingFlags.Public | BindingFlags.Instance);

var entity = new T();
var entity = new T();

var hash = new HashSet<string>(Enumerable.Range(0, @this.FieldCount)
.Select(@this.GetName));
var hash = new HashSet<string>(Enumerable.Range(0, @this.FieldCount)
.Select(@this.GetName));

foreach (PropertyInfo property in properties)
{
if (hash.Contains(property.Name))
{
Type valueType = property.PropertyType;
property.SetValue(entity, @this[property.Name].To(valueType), null);
}
}
foreach (PropertyInfo property in properties)
{
if (hash.Contains(property.Name))
{
Type valueType = property.PropertyType;
property.SetValue(entity, @this[property.Name].To(valueType), null);
}
}

foreach (FieldInfo field in fields)
{
if (hash.Contains(field.Name))
{
Type valueType = field.FieldType;
field.SetValue(entity, @this[field.Name].To(valueType));
foreach (FieldInfo field in fields)
{
if (hash.Contains(field.Name))
{
Type valueType = field.FieldType;
field.SetValue(entity, @this[field.Name].To(valueType));
}
}

return entity;
}
else {
return default(T);
}
}

return entity;
}
}
}