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Create Relation

Creates a relation between 2 objects

Description​

Creates a specified relation between 2 given objects. It is not necessary to check whether the two objects are already related. In case they are, the brick returns successfully without changing anything (in other words: two objects can only be linked once).

Let's take the following data model with two data types, and one relation between them:

Data type: Person

  • Attribute 1: name (string)
  • Relation 1: owns (Car)

Data type: Car

  • Attribute 1: brand (string)

Adding an owns relation between Person p and Car c can be done by setting the following inputs:

  • origin: p
  • relation: Person -> owns
  • destination: c

Inputs​

  • destination (Object): The related object
  • relation (Relation): The relation linking the origin and destination
  • origin (Object): The object from which the relation starts (as per the data model definition)
  • Control Flow (Control Flow)

Outputs​

  • origin (Object): The origin object
  • Control Flow (Control Flow)
  • Error Flow (Error Flow): If the provided object doesn't have the specified relation
  • destination (Object): The destination object