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 FileMaker Pro Custom Functions

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AS_File_exists ( myPath ; result_field )

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  Average rating: 4.0  (4 votes)
  Discuss this Custom Function

Thomas Siebert, seabird
http://www.t-seabird.de

verifies if a file or directory exists and return a value to a global field (macOS/OSX only)

Sample Input:
AS_File_exists ( Get ( DocumentsPath ) ; TableName::FieldName )

AS_File_exists ( "/Users/username/Downloads/test.zip" ; TableName::GlobalFieldName )
Sample Output:
1

if file exists 1 will be returned to a global field.
otherwise 0 will be returned.


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Description:

returns 1 if a file or directory exists
otherwise 0 will be returned


result_field should be a standard text field of the current table or any global field
at least one record is required in a table to return a value to a global field

there is no way writing a result of an AppleScript directly into a FileMaker variable if using the common FileMaker function "perform AppleScript"

U shall use a standard POSIX path or a common FileMaker paths like:
"filemac:" & Get ( DesktopPath ) & "file.csv"

The script removes prefixes like "filemac:" or the name of the start volume like "/Macintosh HD/" from the path automatically.


Use the ScriptStep "Perform AppleScript" using the option "Calculated AppleScript"
You also shall use "Perform AppleScript" directly from a button.

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

Discuss:

parameters changed:
a global field for returning the result will be referenced directly

Thomas Siebert, Hamburg
April 23, 2017 2:16am

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