Advertisements I don’t know how to describe this exactly in database jargon. I would like to output an object that is in a relationship with another like this. order__orderitem.product.title models.py class Order(models.Model): status_types = [ ("Ordered", "Ordered"), ("Sent", "Sent"), ("Delivered", "Delivered"), ("Extended", "Extended"), ("Returned", "Returned"), ] user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE) order_date = models.DateTimeField() return_date =… Read More How to write out an object from a relationship in django
Advertisements Lets say there is a structure like this: class Aaaaa(models.Model): b = models.ManyToManyField(‘Bbbbb’) class Bbbbb(models.Model): c = models.ForeignKey(‘Ccccc’) class Ccccc(models.Model): x = models.CharField(max_lenght="3") Now I’m in the DetailView of Aaaaa. I do prefetch_related(‘b’). But how can I let Django know to get all the "Ccccc" as well? >Solution : You can work with a… Read More How to apply select_related to the objects of a m2m relationship in Django?
Advertisements hey guys i work withe django framework i had the error OperationalError i have to class with same fields class Student(models.Model): user = models.OneToOneField(User, null=True, blank=True, on_delete=models.CASCADE) id = models.AutoField(primary_key=True) First_Name = models.CharField(‘First Name’, max_length=30, null=True, blank=True) Last_Name = models.CharField(‘Last Name’, max_length=30, null=True, blank=True) ID_Number = models.CharField(‘Id Number’, max_length=30, null=True, blank=True) Phone = PhoneNumberField(‘Phone’,null=True)… Read More i get this error OperationalError at /admin/accounts/student/
Advertisements I have a django model, PhoneNumberVerification. It has two columns: phone number, and code. I want to be able to get the code if I am given a phone number. Essentially, search the table for which row has the phone number as my phone number, and fetch the code for that given row. I… Read More Get data from django database model
Advertisements I have this code snippet in a view: time_from = datetime.strptime(req.POST[‘time_from’], "%Y-%m-%d %H:%M:%S.%f") with connections["mssql_database"].cursor() as cursor: sql_statement = "EXEC SaveActivity @TimeFrom=’%s’" % (time_from) print(sql_statement) cursor.execute(sql_statement) It prints this SQL statement: EXEC SaveActivity @TimeFrom=’2021-12-01 08:34:54′ Microseconds are missing. They are zeros, but I need them in a database. How can I correct this? >Solution… Read More Losing microseconds when inserting date to database
Advertisements I am calling BORROWER.objects.create(ssn=Ssn, bname=Name, address=Address, phone=Phone) from views.py to create an entry in my sqlite database. This is my models.py file with the relevant function. class BORROWER(models.Model): card_id = models.AutoField(primary_key=True, max_length=7) ssn = models.CharField(max_length=11) bname = models.CharField(max_length=71) address = models.CharField(max_length=79) phone = models.CharField(max_length=15) def __str__(self): return str(self.card_id) The database entry is successfully created.… Read More Django: I am unable to get Django to autocreate an autofield