initial commit

App_Code/SQLExtensions.cs

@@ -0,0 +1,154 @@
+using Microsoft.Data.SqlClient;
+using System.Data.SqlTypes;
+
+namespace Library;
+
+public static class SQLExtensions
+{
+	public static string? String( this SqlDataReader reader , string column_id )
+	{
+		int column_index = reader.FindColumn( column_id );
+		if ( column_index < 0 )
+			return null;
+
+		return reader.String( column_index );
+	}
+
+	public static string? String( this SqlDataReader reader , int column_index )
+	{
+		if ( reader.IsDBNull( column_index ) )
+			return null;
+
+		string? o = reader[ column_index ].ToString( );
+		if ( o == null )
+			return null;
+
+		return o!;
+	}
+
+	public static string StringSafe( this SqlDataReader reader , string column_id )
+	{
+		int column_index = reader.FindColumn( column_id );
+		if ( column_index < 0 )
+			return "";
+
+		return reader.StringSafe( column_index );
+	}
+
+	public static string StringSafe( this SqlDataReader reader , int column_index )
+	{
+		if ( reader.IsDBNull( column_index ) )
+			return "";
+
+		string? o = reader[ column_index ].ToString( );
+		if ( o == null ) return "";
+
+		return o!;
+	}
+
+	public static DateTime DateTime( this SqlDataReader reader , string column_id )
+	{
+		int column_index = reader.FindColumn( column_id );
+		if ( column_index < 0 )
+			return System.DateTime.MinValue;
+
+		return reader.DateTime( column_index );
+	}
+
+	public static DateTime DateTime( this SqlDataReader reader , int column_index )
+	{
+		object data_value = reader[ column_index ];
+		if ( data_value is DateTime date_time_result )
+			return date_time_result;
+		
+		return System.DateTime.MinValue;
+	}
+
+	public static int Int( this SqlDataReader reader , string column_id , int fallback = 0 )
+	{
+		int column_index = reader.FindColumn( column_id );
+		if ( column_index < 0 )
+			return fallback;
+
+		return reader.Int( column_index , fallback );
+	}
+
+	public static int Int( this SqlDataReader reader , int column_index , int fallback = 0 )
+	{
+		object data = reader[ column_index ];
+		if ( data == null )
+			return fallback;
+
+		try
+		{
+			return Convert.ToInt32( data );
+		}
+		catch
+		{
+		}
+
+		if ( int.TryParse( data.ToString( ) , out int result ) )
+			return result;
+
+		return fallback;
+	}
+
+	public static long Int64( this SqlDataReader reader , string column_id , long fallback )
+	{
+		int column_index = reader.FindColumn( column_id );
+		if ( column_index < 0 )
+			return fallback;
+
+		return reader.Int64( column_index , fallback );
+	}
+
+	public static long Int64( this SqlDataReader reader , int column_index , long fallback )
+	{
+		object data = reader[ column_index ];
+		if ( data == null )
+			return fallback;
+
+		try
+		{
+			return Convert.ToInt64( data );
+		}
+		catch
+		{
+		}
+
+		if ( long.TryParse( data.ToString( ) , out long result ) )
+			return result;
+
+		return fallback;
+	}
+
+	public static decimal Numeric( this SqlDataReader reader , string column_id , decimal fallback )
+	{
+		int column_index = reader.FindColumn( column_id );
+		if ( column_index < 0 )
+			return fallback;
+
+		return reader.Numeric( column_index , fallback );
+	}
+
+	public static decimal Numeric( this SqlDataReader reader , int column_index , decimal fallback )
+	{
+		SqlDecimal data = reader.GetSqlDecimal( column_index );
+		if ( data.IsNull )
+			return 0;
+		return data.Value;
+	}
+
+
+	public static int FindColumn( this SqlDataReader reader , string column_id )
+	{
+		try
+		{
+			return reader.GetOrdinal( column_id );
+		}
+		catch ( Exception )
+		{
+			return -1;
+		}
+	}
+}