SET ALLOWED METHODS

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4D v16.3

SET ALLOWED METHODS


SET ALLOWED METHODS ( methodsArray )

Parameter	Type	Description
methodsArray	String array	Array of method names

Description

The SET ALLOWED METHODS command designates the project methods that can be called directly from the application.

4D includes a security mechanism that filters callable project methods from the following contexts:

The formulas editor - allowed methods appear at the end of the list of default commands and can be used in formulas (see section Description of formula editor).
4D Write Pro documents - allowed methods can be used in dynamic expressions inserted in documents (see section Filter expressions contained in a 4D Write Pro document).
The 64-bit label editor - the allowed methods are listed in the Apply menu if they are also shared with the component (see section Description of label editor).

By default, if you do not use the SET ALLOWED METHODS command, no method is callable (using an unauthorized method in an expression causes a syntax error).

In the methodsArray parameter, pass the name of an array containing the list of methods to offer in the Formula editor. The array must have been set previously.

You can use the wildcard character (@) in method names to define one or more authorized method groups.

If you would like the user to be able to call 4D commands that are unauthorized by default or plug-in commands, you must use specific methods that handle these commands.

Note: The mechanism for filtering access to commands and methods in the Formula editor can be disabled for all users or for the Designer and Administrator via an option on the "Security" page of the Database Settings. If the "Disabled for all" option is checked, the SET ALLOWED METHODS command will have no effect.

Example

This example authorizes all methods starting with “formula” and the “Total_general” method in the Formula editor:

 ARRAY STRING(methodsArray;2)

 methodsArray{1}:="formula@"

 methodsArray{2}:="Total_general"

 SET ALLOWED METHODS(methodsArray)