RSDCohortTrackingRule

open class RSDCohortTrackingRule : RSDTrackingRule, Codable

A cohort rule can be used to mutate a list of cohorts of which the participant is a member. A cohort is a data group that participants are added to based on the results of survey questions.

initialCohorts
The initial cohorts before the task starts.
Declaration
Swift

public let initialCohorts: Set<String>


                    
                    
                    currentCohorts

The current set of cohorts.

Declaration

Swift

open private(set) var currentCohorts: Set<String> {
  get
  }

skipToStepIdentifier(before:with:isPeeking:)
MARK: RSDConditionalRule Check if the step implements RSDCohortNavigationStep and apply the before rules for the step to the current cohorts.
Declaration
Swift

public func skipToStepIdentifier(before step: RSDStep, with result: RSDTaskResult?, isPeeking: Bool) -> String?
nextStepIdentifier(after:with:isPeeking:)
This method is used to test whether or not to mutate the current cohorts. This will look to see if the step implements the RSDCohortAssignmentStep and if so, apply the new cohorts.

Then it will check if the step implements RSDCohortNavigationStep and apply the after rules for the step to the current cohorts.
Declaration
Swift

open func nextStepIdentifier(after step: RSDStep?, with result: RSDTaskResult?, isPeeking: Bool) -> String?