Django auto_now and auto_now_add
For Django 1.1.
django-models
Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?
I have a Person model that has a foreign key relationship to Book, which has a number of fields, but I’m most concerned about author (a standard CharField).
Programmatically saving image to Django ImageField
Ok, I’ve tried about near everything and I cannot get this to work.
Django FileField with upload_to determined at runtime
I’m trying to set up my uploads so that if user joe uploads a file it goes to MEDIA_ROOT/joe as opposed to having everyone’s files go to MEDIA_ROOT. The problem is I don’t know how to define this in the model. Here is how it currently looks:
How to pull a random record using Django’s ORM?
I have a model that represents paintings I present on my site. On the main webpage I’d like to show some of them: newest, one that was not visited for most time, most popular one and a random one.
Django – No such table: main.auth_user__old
I was following the first app tutorial from the official Django docs and got this error when trying to save some changes made through the admin page. I did some research on it, but the possible solutions I was able to find, such as migrating the db, simply won’t work. Just let me know if you want to see some specific part of my code.
Django – how to create a file and save it to a model’s FileField?
Here’s my model. What I want to do is generate a new file and overwrite the existing one whenever a model instance is saved:
How do I clone a Django model instance object and save it to the database?
Foo.objects.get(pk="foo") <Foo: test> In the database, I want to add another object which is a copy of the object above. Suppose my table has one row. I want to insert the first row object into another row with a different primary key. How can I do that? Answers: Thank you for visiting the Q&A section … Read more
Django Aggregation: Summation of Multiplication of two fields
I have a model something like this: