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I want to generate different/unique id per request in django from models field. I did this but I keep getting the same id.
class Paid(models.Model): user=models.ForeignKey(User) eyw_transactionref=models.CharField(max_length=100, null=True, blank=True, unique=True, default=uuid.uuid4()) #want to generate new unique id from this field def __unicode__(self): return self.user 
982
randint() method is used to generate a random number between the start and stop.
The simplest way to generate identifiers is by a serial number. A steadily increasing number that is assigned to whatever you need to identify next. This is the approached used in most internal databases as well as some commonly encountered public identifiers.
The __str__() method is called whenever you call str() on an object. Django uses str(obj) in a number of places. Most notably, to display an object in the Django admin site and as the value inserted into a template when it displays an object.
By default, Django adds an id field to each model, which is used as the primary key for that model. You can create your own primary key field by adding the keyword arg primary_key=True to a field.
Since version 1.8 Django has UUIDField
import uuid from django.db import models class MyUUIDModel(models.Model): id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False) # other fields If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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