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FileMaker Pro Custom Functions

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GetNthRecordFiltered ( primary_fieldname ; controlvalue_fieldname, recordNumStart; recordNumEnd; filterValue )

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Kenneth Durrum, Released Solutions
http://www.releasedsolutions.net

This function enables you to select a set of related records of a single field based on a value of a second field that is filtered by a keyword.

Sample Input:

GetNthRecordFiltered (locationName, FoodServed,1,100,"Pizza")

Sample Output:

Pizza Hut
Johnny's Pizza
Pizza World
Sal's Pizza
Sabarro

Let ( [ // ------ BEGIN VARIABLE DECLARATIONS BELOW ----- startParam = recordNumStart ; start = Case ( startParam < 1 ; 1 ; startparam ) ; end = recordNumEnd ; thevalue = filterValue; thisVal = Case ( // this limits "?" result on empty related records PatternCount ( GetNthRecord ( controlvalue_fieldname ; start ) ; thevalue ) > 0 ; GetNthRecord ( primary_fieldname ; start ) ) ; // END CASE nextStart = start + 1 ] ; // ----------- FUNCTION RESULTS BELOW ----------- thisVal & Case ( // TEST : Either no end Value given or next value is within the end value ( ( end = "" or end = 0 ) or nextStart <= end ) ; // RESULT: Return Character & Recurse again If(Length(thisVal) > 1; "¶" ; "") & GetNthRecordFiltered(primary_fieldname;controlvalue_fieldname;nextStart;end;thevalue); ) // END CASE ) // END LET
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:

Use this function to obtain a list of values based from a field based on the filtering of another field. In the example listed in the sample input we have a field called locationName which holds a list of eatery locations. In the FoodServed field in the same table as the locationName field we have store the values of the food items served at the location.

The function loops through the return values of the related field and only returns the locationNames of the records that contain the filterValue in the FoodServed field.

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

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