هذا المقال متوفر حسب اللغات التالية : Usually you do not need to specify this kind of constraint, since most cases are solved by the fact that the teachers have to use the same room or they teach the same group of students. However if you really have two independent teachers, and you do not want them to teach at the same time, you can define advanced cardrelationship that says max 1 card on each position:
تمت مشاهدة هذا المقال 99109 مرة75267 / 99109
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