LinkDTO

[derpixler]

API Reference: Ticket Links

readonly class LinkDTO implements DTOInterface. Represents a link between two objects (typically tickets) in Zammad. Links have a type (normal, parent, child) and connect a source object to a target object.

Properties:

Field	Type	Required	Notes
id	?int	—
link_type	string	yes	normal, parent, child
link_object_source	string	yes	source object type, e.g. 'Ticket'
link_object_source_value	?int	—	source object ID
link_object_target	string	yes	target object type
link_object_target_value	?int	—	target object ID

Does NOT use HasTimestamps — links have no date fields. fromArray() uses Cast::string() for the string fields.

Acceptance Criteria

• Testing: LinkDTOTest — roundtrip for all three link types (normal, parent, child), null omission on optional fields
• Documentation in README: README — $client->link()->list('Ticket', 1) example

Depends on

• DTO Foundation #91

Produces

• LinkDTO

Testing

• LinkDTOTest — roundtrip fromArray → toArray for all three link types (normal, parent, child), null omission on optional fields

Documentation in README

• Ticket Linking example in "Quick Start" — show $client->link()->list('Ticket', 1) and add() / remove() usage