VariableGlobalize ( LocalVariableName )

Changes the scope of a Local variable to a Global variable of the same name, with the same contents.

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Jonathan Mickelson - Show more from this author

Sample input:

If $testVar = 56:
VariableGlobalize ( "$testVar" )

Sample output:

$$testVar = 56 and
$testVar = null

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

/*---------------------------------------------------------------
Function Name - VariableGlobalize

Syntax
~~~~~~~~~~~~~~~
VariableGlobalize ( LocalVariableName )

Description
~~~~~~~~~~~~~~~
This function Transfers the contents of a Local variable to a Global variable of the same name and clears the original variable.

Parameters
~~~~~~~~~~~~~~~
LocalVariableName - The quoted name of a validly named local variable to be made global.
                                  Example: "$variable01"

Special Notes
~~~~~~~~~~~~~~~
This function requires FileMaker 8 or greater.

Last Modified: 9/3/05
Author - Jonathan Mickelson

---------------------------------------------------------------*/
// --------------- PRE-PROCESSING -----------------------
Case ( 
PatternCount ( LocalVariableName ; "$" ) = 0 ; "Error: Not a valid local variable name" ;
// ELSE CONTINUE
Let ( 
[ 
// --------------- PROCESSING ------------------------- 
nameFull = LocalVariableName ; 
val = Evaluate ( nameFull ) ; 
name = Substitute ( Left ( nameFull ; 2 ) ; "$" ; "" ) & 
             Middle ( nameFull ; 3 ; 99 ) ; 
localize = Evaluate ( "Let ( " & "$$" & name & " = " & Quote ( val ) & " ; \"\" )" ) ; 
killOld = Evaluate ( "Let ( " & "$" & name & " = \"\" ; \"\" )" ) 
] ; 
// --------------- RESULT ----------------
""
 ) // END LET
 ) // END CASE

Requires FileMaker 8 or higher.

This function Transfers the contents of a Local variable to a Global variable of the same name and clears the original variable.

This is valuable for instances where a local variable has been used throughout a script and it's then determined that the scope of the variable should persist beyond the current script.

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

VariableGlobalize ( LocalVariableName )

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