Overriding Swim Lane Assignment

Question

Hey , 
 I have a scenario where i multiple User Input task , one after the other and they are assigned to a particular group. I have mapped the assignment using a swim lane. 
 The requirement is such that the member of the group who performed the 1st User Task should not be able to pick up the next User Input task i.e. each member of the group can only perform the task only once and he can't pick up the next task's in the flow . 
 The method am using is that initially i have mapped the asisgnment to the group in the swim lane , and for the each user input task i am storing the task performer's name in a process variable and in each node i am overriding the assignment to the same group and by adding the function except(pv_taskPerformer) the variable which is holding the name of the task owner. 
 Is this an appropriate way ? or can we do this in some other possible way also ? 
 
 Thanks, 
 Rohit Ouhal

Sidhant Behura · Answer

Hi @rohitr303, 
 
What i would prefer is store the user who have accepted the assignment and do a difference of that user from the Group assigned in the swimlane. 
Below is the code snippet : 
difference( 
 getgroupmemberuserspaging( 
 cons!APP_GROUP_ADMINISTRATORS, 
 1, 
 - 1 
), 
{touser("username")} 
) 
 
Note - getgroupmemberuserspaging is a shared component which need to be deployed. 
 
Please let me know if it helps.