Objects and collections

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4D v20.6

Constant	Type	Value	Comment
ck ascending	Longint	0	Elements are ordered in ascending order (default)
ck descending	Longint	1	Elements are ordered in descending order
ck diacritical	Longint	8	Execute a diacritical evaluation
ck disable wildchar	Longint	16
ck ignore null or empty	Longint	1	Ignore null values and empty strings in the result
ck keep empty strings	Longint	2
ck keep null	Longint	1	Keep null or undefined properties in the result
ck resolve pointers	Longint	1	Resolve pointers in the copied collection
dk ascending	Longint	0	Ascending sort order (default)
dk auto merge	Longint	32	Enables the automatic merge mode option for the entity.save( ) method
dk descending	Longint	1	Descending sort order
dk diacritical	Longint	8	Execute a diacritical evaluation
dk distinct values	Longint	1	Consider only entity attributes with non-repetead values (option for the entitySelection.count( ) method)
dk force drop if stamp changed	Longint	2	Forces the drop even if the stamp has changed (option for the entity.drop( ) method)
dk keep ordered	Longint	1	Option for maintaining order of the original collection in the new one
dk key as string	Longint	1	The entity.getKey( ) method returns the primary key value as string
dk non ordered	Longint	0	Option for creating an unordered new collection
dk reload if stamp changed	Longint	1	If the stamp of the entity has changed, reload it before performing the lock process (option for the entity.lock( ) method)
dk status automerge failed	Longint	6	(Only if the dk auto merge option is used) The automatic merge option failed when saving the entity. Associated statusText: "Auto merge failed"
dk status entity does not exist anymore	Longint	5	The entity no longer exists in the data. This error can occur in the following cases: the entity has been dropped (the stamp has changed and the memory space is now free) the entity has been dropped and replaced by another one with another primary key (the stamp has changed and a new entity now uses the memory space). When using entity.drop( ), this error can be returned when dk force drop if stamp changed option is used. When using entity.lock( ), this error can be returned when dk reload if stamp changed option is used Associated statusText: "Entity does not exist anymore"
dk status locked	Longint	3	The entity is locked by a pessimistic lock. Associated statusText: "Already locked"
dk status serious error	Longint	4	A serious error is a low-level database error (e.g. duplicated key), a hardware error, etc. Associated statusText: "Other error"
dk status stamp has changed	Longint	2	The internal stamp value of the entity does not match the one of the entity stored in the data (optimistic lock). with entity.save( ): error only if the dk auto merge option is not used with entity.drop( ): error only if the dk force drop if stamp changed option is not used with entity.lock( ): error only if the dk reload if stamp changed option is not used Associated statusText: "Stamp has changed"
dk stop dropping on first error	Longint	8	The drop action stops on the first not droppable entity (option for the entitySelection.drop( ) method)
dk with primary key	Longint	1	Add the primary key in the extracted collection or object (option for entitySelection.toCollection( ) and entity.toObject( ) methods)
dk with stamp	Longint	2	Add the stamp in the extracted collection or object (option for entitySelection.toCollection( ) and entity.toObject( ) methods)