primary-key

Django model with uuid5 primary key Question: I have a problem to define Django model where the Primary Key is UUID5 that base on model fields. Here is what I have got already. class Place(models.Model): uuid = models.UUIDField(primary_key=True, default=uuid.uuid5(‘PLACE_UUID_NAMESPACE’, ‘{}{}{}’.format(self.city, self.zip, self.country))) city = models.CharField(max_length=24, blank=True, null=True) zip = models.CharField(max_length=6, blank=True, null=True) country = CountryField(default=’US’) …

Python Pandas to_sql, how to create a table with a primary key? Question: I would like to create a MySQL table with Pandas’ to_sql function which has a primary key (it is usually kind of good to have a primary key in a mysql table) as so: group_export.to_sql(con = db, name = config.table_group_export, if_exists = …

Django AutoField with primary_key vs default pk Question: I am curious about Django database model pk. Is there any difference this class Category(models.Model): category_id = models.AutoField(primary_key=True) category_name = models.CharField(max_length=50) between this? class Category(models.Model): category_name = models.CharField(max_length=50) Are the same things AutoField with primary_key and default pk? Asked By: fatiherdem || Source Answers: Yes, the difference …

How can I set two primary key fields for my models in Django? Question: I have a model like this: class Hop(models.Model): migration = models.ForeignKey(‘Migration’) host = models.ForeignKey(User, related_name=’host_set’) How can I have the primary key be the combination of migration and host? Asked By: Vahid Kharazi || Source Answers: Update Django 4.0 Django 4.0 …

Django BigInteger auto-increment field as primary key? Question: I’m currently building a project which involves a lot of collective intelligence. Every user visiting the web site gets created a unique profile and their data is later used to calculate best matches for themselves and other users. By default, Django creates an INT(11) id field to …