Thank you Daniel,

I found another way.

Best,
Michael

On 14 August 2015 at 23:17, Daniel H <[email protected]> wrote:

> Hi Michael.
>
> First of all, setting the pk to the pk of a different model will do
> nothing.
>
> You can do this however, using Foreign Keys
> <https://docs.djangoproject.com/en/1.8/ref/models/fields/#django.db.models.ForeignKey>
>
> restaurant = models.ForeignKey('Restautant')
>
> Then declare a new hotel object like this:
>
> restaurant = Restaurant.objects.get(name='Will soon be a hotel')
> Hotel.objects.create(restaurant=restaurant.pk)
>
> What does the "Place" table represent?
>
>
> On Friday, August 14, 2015 at 7:35:26 AM UTC-7, [email protected] wrote:
>>
>> Hi all,
>>
>> suppose I have the following model structure
>>
>>     from django.db import models
>>
>>     class Place(models.Model):
>>         name = models.CharField(max_length=50)
>>
>>     class Restaurant(Place):
>>         ...
>>
>>     class Hotel(Place):
>>         ...
>>
>> I already have a Restaurant in my database. This Restaurant is now also
>> becoming a Hotel. I would like to declare this in the database as follows:
>>
>>     restaurant = Restaurant.objects.get(name='Will soon be a hotel')
>>     Hotel.objects.create(pk=restaurant.pk)
>>
>> Is this a safe thing to do?
>>
>> Thanks,
>> Michael
>>
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Michael Herrmann, MSc
Alser Straße 18/26
1090 Wien
Tel.: +43 699 11 65 16 40
Email: [email protected]

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