smarthut/backend
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delete cascade no more

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omenem 2020-03-23 17:53:22 +01:00
parent b9320ea078
commit c17b6df3b5
1 changed files with 8 additions and 0 deletions
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8
src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/Dimmer.java
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@ -6,6 +6,7 @@ import javax.persistence.Entity;
import javax.persistence.Inheritance; import javax.persistence.Inheritance;
import javax.persistence.InheritanceType; import javax.persistence.InheritanceType;
import javax.persistence.OneToMany; import javax.persistence.OneToMany;
import javax.persistence.PreRemove;
/** Represents a generic dimmer input device */ /** Represents a generic dimmer input device */
@Entity @Entity
@ -32,4 +33,11 @@ public abstract class Dimmer extends InputDevice {
public void addDimmableLight(DimmableLight dimmableLight) { public void addDimmableLight(DimmableLight dimmableLight) {
lights.add(dimmableLight); lights.add(dimmableLight);
} }
@PreRemove
private void removeLightsFromDimmer() {
for (DimmableLight dl : getOutputs()) {
dl.setDimmerId(null);
}
}
} }