Brian Dunning's FileMaker Custom Functions

All ( relatedField ; rFieldCount ; soughtValue )

Permits evaluation of portal contents to determine if all related records contain the desired value

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Edwin M. Hopkins   Edwin M. Hopkins
Edwin M. and Christina A. Hopkins family

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  Sample input:
All ( PortalView :: Whatzit ; PoltalView :: Tally ; "main" )
where the portal displays under the Whatzit title the values "main" "main" "main" "former"
  Sample output:
0 (that is to say, false)

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

With an intuitive identity, this function evaluates a collection of related records (for instance through a portal) to determine if all of those records meet a specified criterion on the specified related record field and returns "true" for the whole collection of related records if every related record matches and "false" for the whole collection of related records if even one does not match.

 

Comments

comment   comment, VR
Jul 21, 2009
Try:

Let (
values = List ( Related::Field )
;
ValueCount ( FilterValues ( values ; soughtValue ) ) = ValueCount ( values )
)
 

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