FieldSortValue.calc

Let([
	_sort_field = sortFieldName ;
	_sort_field_descending = sortFieldDescending ;
	_sort_descending = sortDescending ;
	_field_type = MiddleWords ( FieldType ( Get ( FileName ) ; _sort_field ) ; 2 ; 1 )
	];
	Case (
		//-- Sort settings don't match, Show nothing
		GetAsBoolean ( _sort_field_descending ) ≠ GetAsBoolean ( _sort_descending ) ; "" ;

		//-- Text field, Show text
		_field_type = "text" ; GetField ( _sort_field ) ;

		//-- Else, format for date or number
		Let([
			nF = GetField ( _sort_field ) ;
			nT = Int (nF) ;
			nM = Mod ( nF ; 1) ;
			nX = If (nM ; nM ; ".0" )
			];
			Right ( "0000000000000000" & nT ; 16 ) & nX
		)
	)
)

/* __________________________________________________

NAME:	FieldSortValue ( sortFieldName ; sortFieldDescending ; sortDescending )
PURPOSE:	Returns value from current record if sort sort direction matches direction for this calc.  Results are formatted to preserve sort order of non-text values while sorting by text field.
EXAMPLES:

HISTORY:
	Based on demo by Ray Cologon at nightwing.com.au
	Created:	2010-07-19 15:41 PT - Donovan Chandler
	Modified:	2013-02-19 13:43 PT - Donovan Chandler : renamed; formatting.
*/