Event's create and edit action have been tested and are now working.
Also, the old problem of adding Samples has been addressed. When a new event is created as a SamplingEvent?, no new samples can be added directly. The reason for this is, that the event is not yet assigned to any Subject, and thus the non nullable subject field of a new sample (belonging to the new event) cannot be filled.
Similarly, when a SamplingEvent? event is edited, new samples can only be added, if the event already is assigned to belong to a subject. New samples are always added to the same subject as the first (random) sample belonging to the SamplingEvent?.
However, there are still open questions:
(1) Should the sample also be assigned to the samples of its subject's Study?
(2) Should a sample also be assigned, if there are no samples assigned yet, but there is a subject assigned to this event?
(3) Should the user be allowed to chose to assign a subject if the event is assigned to a Study that contains multiple subjects?
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