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FileMaker Pro Custom Functions

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AntiFilterValues( ListA; ListB )

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Average rating: 3.8 (9 votes)
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Bruce Robertson, Concise Design
http://concise-design.com

Return values only contained in ListA

Sample Input:

AntiFilterValues( "1¶2¶3¶4¶1¶"; "1¶3")

Assuming you have archived a list of record ID values for a table:
AntiFilter(OldRecIDlist; newRecIDList)

Sample Output:

2
4

List of deleted records

/* AntiFilterValues( ListA; ListB) Finds values that are only contained in ListA Example: AntiFilterValues( "1¶2¶3¶4¶1¶"; "1¶3") // "2¶4¶" AntiFilter( ProductIDListFor_This_MonthOrders; ProductIDListFor_Last_MonthOrders) // products ordered for first time Bruce Robertson/Concise Design Updated 10/13/2008 - now correctly fully matches list item Updated 5/3/2009 - correct results if listB is empty (returns ListA) */ Case( IsEmpty( ListA); "" ; IsEmpty( ListB & $top ); ListA; ValueCount( ListB); Let( [ VCA = ValueCount( ListA); VCB = ValueCount( ListB); $Top = "##END##¶" ; ListA = LeftValues( ListB; VCB) & $Top & LeftValues( ListA; VCA) ]; AntiFilterValues( ListA; "" ) ); Let([ VCA = ValueCount( ListA); P = Position( ListA; $top; 0 ; 1 ); P = PatternCount( Left( ListA; P); "¶"); L0 = MiddleValues( ListA; 1; 1); L1 = ¶ & MiddleValues( ListA; 1; 1); L2 = ¶ & MiddleValues( ListA; 2; 1); L3 = ¶ & MiddleValues( ListA; 3; 1); L4 = ¶ & MiddleValues( ListA; 4; 1); L5 = ¶ & MiddleValues( ListA; 5; 1); L6 = ¶ & MiddleValues( ListA; 6; 1); L7 = ¶ & MiddleValues( ListA; 7; 1); L8 = ¶ & MiddleValues( ListA; 8; 1); L9 = ¶ & MiddleValues( ListA; 9; 1); L10=¶ & MiddleValues( ListA; 10; 1); L11 = ¶ & MiddleValues( ListA; 11; 1); L12 = ¶ & MiddleValues( ListA; 12; 1); L13 = ¶ & MiddleValues( ListA; 13; 1); L14 = ¶ & MiddleValues( ListA; 14; 1); L15 = ¶ & MiddleValues( ListA; 15; 1); L16 = ¶ & MiddleValues( ListA; 16; 1); L17 = ¶ & MiddleValues( ListA; 17; 1); L18 = ¶ & MiddleValues( ListA; 18; 1); L19 = ¶ & MiddleValues( ListA; 19; 1); L20 = ¶ & MiddleValues( ListA; 20; 1) ]; Case( (L0 <> $Top) and (P > 20); Let( R = Substitute( ¶ & ListA; // [¶ ; "¶¶"]; [L1; ¶ ]; [L2; ¶ ]; [L3; ¶ ]; [L4; ¶ ]; [L5; ¶ ]; [L6; ¶ ]; [L7; ¶ ]; [L8; ¶ ]; [L9; ¶ ]; [L10; ¶ ]; [L11; ¶ ]; [L12; ¶ ]; [L13; ¶ ]; [L14; ¶ ]; [L15; ¶ ]; [L16; ¶ ]; [L17; ¶]; [L18; ¶ ]; [L19; ¶ ]; [L20; ¶ ];["¶¶"; ¶] ); AntiFilterValues( MiddleValues( R; 2; ValueCount( R)-1) ; "") ) ; L0 <> $Top ; Let( R = Substitute( ¶ & ListA; [¶; "¶¶"]; [ L1; ¶ ]; ["¶¶"; ¶] ); AntiFilterValues( MiddleValues( R; 2; ValueCount(R) -1); "") ) ; MiddleValues( Substitute( ListA; ["¶¶"; ¶] ) ; 2; VCA-1 ) & Let ($top = ""; "") ) ) )
Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

Updated 5/3/2009 - correct results if listB is empty (returns ListA)
Updated 10/13/2008 - now correctly fully matches list item

Another custom function that does the opposite of the built-in FilterValues function. It returns the list of items that are only contained in ListA.

This one has high performance across tens of thousands of records and in my testing, beat performance of some of the compile and calculate list methods.

Deals with recursion limit by using a hardwired multiline calculation, and by dwindling the list.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

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