[rules-users] Equal shift assignment based on employment form

[ns]

I managed to create a rule to distribute the shiftassignments equally, using
your fairness example.

I am now however stuck on the part time, full time problem. A person that
works part time (50%) should get assigned only half the shifts that a full
time gets assigned. How do I do that?

I have tried the following:

rule "arbeidsbreuk"
    when
    	$employee : Employee($arbeidsbreuk : arbeidsbreuk)
    	//count aantal shifts
        $assignmentTotal : Number() from accumulate(
            $assignment : ShiftAssignment(),
            count($assignment)
        )
        
        //count aantal shifts per medewerker
        $assignmentTotalEmployee : Number() from accumulate(
            $assignment : ShiftAssignment(employee == $employee),
            count($assignment)
        )
        
        //count arbeidsbreuken
        $arbeidsbreukTotal : Number() from accumulate(
            Employee($breuk : arbeidsbreuk),
            count($breuk)
        )
        
        $over : ($assignmentTotal.intValue() /
$arbeidsbreukTotal.intValue()) - ($arbeidsbreuk.intValue() *
$assignmentTotalEmployee.intValue())
    then
        scoreHolder.addSoftConstraintMatch(kcontext, -$over.intValue() *
$over.intValue());
end

But I get the error: 

Message [id=1, level=ERROR,
path=optaplanner-kie-namespace//be/ocmwturnhout/permanenties/solver/permanentiesScoreRules.drl,
line=117, column=0
   text=[ERR 102] Line 117:45 mismatched input '/' in rule "arbeidsbreuk"]
Message [id=2, level=ERROR,
path=optaplanner-kie-namespace//be/ocmwturnhout/permanenties/solver/permanentiesScoreRules.drl,
line=0, column=0
   text=Parser returned a null Package]

I have also tried another rule in which I had a double in the
scoreHolder.addSoftConstraintMatch function and I tried to convert it to an
integer using intValue() . This however also gave an error. Is there a way
to convert doubles to integers?



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