Remove on delete cascade.
Remove on delete cascade.

jcampanell-cablelabs/lora-app-server,brocaar/lora-app-server,jcampanell-cablelabs/lora-app-server,brocaar/lora-app-server,brocaar/lora-app-server,jcampanell-cablelabs/lora-app-server,brocaar/lora-app-server,jcampanell-cablelabs/lora-app-server