Team Shifts - condition based on NONE of the retrieved shifts matching displayName criteria

[christopherpm]

We use Teams Shifts for specifiying who will be on call at weekends, and the shift has a displayName of "On Call". 

I can already get a list of shifts between two given dates ok, but how can I check to see if there are NO shifts with a displayName of "On Call"? 

Basically I need a condition that says if NONE of the retrieved shifts between the given dates have a displayName of "On Call" then do x

[christopherpm]

OK, I've answered my own question. If there's a more elegant solution, please advise.

I've initialised a variable which I have called "OnCallCounter", and under my "List all Shifts (Preview)" step, I have inserted an "Apply To Each" using the Shifts Lists, and within this step I have a condition:-

If Shift Display Name is equal to On Call

Increment variable OnCallCounter by 1.

I then use the variable later on:-

If OnCallCounter is equal to 0