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This commit is contained in:
28810
2020-08-16 15:38:00 +08:00
parent 46c187e446
commit d6853e93fe
3 changed files with 112 additions and 10 deletions
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5
FreeSql/Extensions/FreeSqlGlobalExtensions.cs
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@ -17,6 +17,7 @@ using System.Threading;
public static partial class FreeSqlGlobalExtensions
{
#region Type 对象扩展方法
static Lazy<Dictionary<Type, bool>> _dicIsNumberType = new Lazy<Dictionary<Type, bool>>(() => new Dictionary<Type, bool>
{
[typeof(sbyte)] = true,
@ -167,6 +168,7 @@ public static partial class FreeSqlGlobalExtensions
}
return dict;
});
#endregion
/// <summary>
/// 测量两个经纬度的距离，返回单位：米
@ -183,6 +185,7 @@ public static partial class FreeSqlGlobalExtensions
return 2 * Math.Asin(Math.Sqrt(Math.Pow(Math.Sin((radLat1 - radLat2) / 2), 2) + Math.Cos(radLat1) * Math.Cos(radLat2) * Math.Pow(Math.Sin((radLng1 - radLng2) / 2), 2))) * 6378137;
}
#region Enum 对象扩展方法
static ConcurrentDictionary<Type, FieldInfo[]> _dicGetFields = new ConcurrentDictionary<Type, FieldInfo[]>();
public static object GetEnum<T>(this IDataReader dr, int index)
{
@ -195,7 +198,6 @@ public static partial class FreeSqlGlobalExtensions
}
return null;
}
public static string ToDescriptionOrString(this Enum item)
{
string name = item.ToString();
@ -218,6 +220,7 @@ public static partial class FreeSqlGlobalExtensions
}
return ret;
}
#endregion
/// <summary>
/// 将 IEnumable&lt;T&gt; 转成 ISelect&lt;T&gt;，以便使用 FreeSql 的查询功能。此方法用于 Lambda 表达式中，快速进行集合导航的查询。