This is the legacy 4D documentation web site. Documentations are progressively being moved to developer.4d.com
- 4D Language Reference
-
- ORDA - EntitySelection
-
-
entitySelection.{attributeName}
-
entitySelection.add( )
-
entitySelection.and( )
-
entitySelection.average( )
-
entitySelection.contains( )
-
entitySelection.copy( )
-
entitySelection.count( )
-
entitySelection.distinct( )
-
entitySelection.drop( )
-
entitySelection.extract( )
-
entitySelection.first( )
-
entitySelection.getDataClass( )
-
entitySelection.isAlterable( )
-
entitySelection.isOrdered( )
-
entitySelection.last( )
-
entitySelection.length
-
entitySelection.max( )
-
entitySelection.min( )
-
entitySelection.minus( )
-
entitySelection.or( )
-
entitySelection.orderBy( )
-
entitySelection.orderByFormula( )
-
entitySelection.query( )
-
entitySelection.queryPath
-
entitySelection.queryPlan
-
entitySelection.refresh( )
-
entitySelection.slice( )
-
entitySelection.sum( )
-
entitySelection.toCollection( )
-
entitySelection[index]
-
Create entity selection
-
USE ENTITY SELECTION
-
entitySelection.getDataClass( )
| entitySelection.getDataClass () -> Result | ||||||||
| Parameter | Type | Description | ||||||
| Result | DataClass |
|
Dataclass object to which the entity selection belongs | |||||
The entitySelection.getDataClass( ) method returns the dataclass of the entity selection. This method is mainly useful in the context of generic code.
The following generic code duplicates all entities of the entity selection:
//duplicate_entities method
//duplicate_entities($1)
//duplicate_entities(entity_selection)
C_OBJECT($dataClass;$1;$entitySelection;$entity;$duplicate;$status)
$entitySelection:=$1
$dataClass:=$entitySelection.getDataClass()
For each($entity;$entitySelection)
$duplicate:=$dataClass.new()
$duplicate.fromObject($entity.toObject())
$duplicate[$dataClass.getInfo().primaryKey]:=Null //reset the primary key
$status:=$duplicate.save()
End for each
4D Blog - ORDA member methods to get the structure information
dataClass.getDataStore( )
dataClass.getInfo( )
entity.getDataClass( )
Product: 4D
Theme: ORDA - EntitySelection
Created: 4D v17 R5
4D Language Reference ( 4D v19)
4D Language Reference ( 4D v19.1)
4D Language Reference ( 4D v19.4)
4D Language Reference ( 4D v19.5)
4D Language Reference ( 4D v19.6)
4D Language Reference ( 4D v19.7)
4D Language Reference ( 4D v19.8)
