dataClass.getInfo( )

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4D v19

Description

The dataClass.getInfo( ) method returns an object providing information about the dataclass. This method is useful for setting up generic code.

Returned object

Property	Type	Description
name	string	Name of the dataclass
primaryKey	string	Name of the primary key of the dataclass
tableNumber	number	Internal 4D table number (not returned if the dataclass is from a remote datastore)

Example 1

 C_OBJECT($1;$e;$status)

 $e:=$1 //$1 is an entity

 

 computeEmployeeNumber($e) //do some actions on entity

 

 $status:=$e.save()

 if($status.success)

    ALERT("Record updated in table "+$e.getDataClass().getInfo().name)

 End if

Example 2

 C_OBJECT($es;$settings)

 

 $settings:=New object

 $settings.parameters:=New object("receivedIds";getIds())

 $settings.attributes:=New object("pk";ds.Clients.getInfo().primaryKey)

 $es:=ds.Clients.query(":pk in :receivedIds";$settings)

Example 3

 C_TEXT($pk)

 C_OBJECT($dataClassAttribute)

 

 $pk:=ds.Employee.getInfo().primaryKey

 $dataClassAttribute:=ds.Employee[$pk] // If needed the attribute matching the primary key is accessible