bidang yang dihitung dalam model

def display_a_capacity_request(request, id):
    capacity_request = CapacityRequest.objects.get(id=id)
    diskspace_gb_vswap = capacity.diskspace_gb_vswap()
    context = {'capacity': capacity_request, 
               'vswap': diskspace_gb_vswap}
    return render(request, 'capacity_detail.html', context)
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