WP Get data context

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4D v20 R7

WP Get data context


WP Get data context ( wpDoc ) -> Function result

Parameter	Type	Description
wpDoc	Object	4D Write Pro document
Function result	Object	Data context object

Description

The WP Get data context command returns the data context of the wpDoc document. Data contexts are defined using the WP SET DATA CONTEXT command.

In wpDoc, pass the 4D Write Pro document whose data context you want to get.

Example

You can get a data context from a document and reuse it in another method within the same process.

The following method sets a data context:

  // method1

 var $person: Object

 var $wpArea : Object

 

 $wpArea:=WP New()

 

  // Create person object

 $person:=New object()

 $person.firstName:="John"

 $person.lastName:="Doe"

 

  // Set context using the person object

 WP SET DATA CONTEXT($wpArea;$person)

 

 method2($wpArea) //call the other method

method2 might look something like:

  //method2

 #DECLARE($document Object)

 var $context : Object

 

 $context:=WP Get data context($document)

 ALERT(JSON Stringify($context)) // Displays {"firstName":"John","lastName":"Doe"}