<filename>demo-application/relecloud/admin.py
from django.contrib import admin
from . import models

# Register your models here.
admin.site.register(models.Cruise)
admin.site.register(models.Destination)
admin.site.register(models.InfoRequest)

<filename>demo-application/relecloud/admin.py
from django.contrib import admin
from . import models

# Register your models here.
admin.site.register(models.Cruise)
admin.site.register(models.Destination)
admin.site.register(models.InfoRequest)

# Register your models here.