Tenant usage is not updated as expected

[michael.mohr]

Hello,

we are currently implementing some metrics, but i can't get the tenant usage to work as i would expect it. 

Click the "refresh" button in the products/services tab on the clients details page. The tenantUsage function is called with the expected tenant (i use a custom field here). But when I populate a metric with a Usage using Metric->withUsage(), the Metric object holds a "NoUsage" Object afterwards.

I tried with different Metrics using different units and periods. I tried explicitly setting the from, to and collectedAt dates when instantiating the Usage. I tried passing different values into the Usage constructor - no success. The tbltenant_stats entry is updated with the new updated_at time, but the value remains 0.000. The table in the admins frontend also reads "-" where i would expect the updated usage values.

Here is some minimal example:

 public function metrics() 
    {
        return [
            new Metric(
                'mymetric',
                'My metric',
                MetricInterface::TYPE_PERIOD_MONTH,
                new KiloBytes()
            )
        ]
    }
    public function tenantUsage($tenant)
    {
        $metric = current($this->metrics());

        $usage = new Usage(123.4); //$usage holds the value as expected

        $populatedMetric = $metric->withUsage($usage); //$populatedMetric now holds an instance of NoUsage 

        $controlUsage = $usageMetric->usage(); //control usage is instanceof NoUsage

        return $usage;
    }