Here is my models.py file from django.db import models from django.utils import timezone from django.contrib.auth.models import UserManager,AbstractBaseUser,PermissionsMixin # Create your models here. class CustomUserManager(UserManager): def _create_user (self, email,password, **extra_fields): if not email: raise ValueError('Please provide a valid email') email= self.normalize_email(email)…
i wanted to transform my data from sqlite database onto posgres database in django. first of all i write the command: python -Xutf8 .manage.py dumpdata --indent=4 --output=data.json to exporting data (in utf-8 encode) in a json file. everything was good…
I am trying to update a django form according to user clicks. The user is allowed to add more form tags on the DOM by clicking a button, add a value to it, and submit when the user is done.…
I want to use {% set … } but it has problem is django.template.exceptions.TemplateSyntaxError: Invalid block tag on line 126: ‘set’, expected ‘empty’ or ‘endfor’. Did you forget to register or load this tag? what should i do ? html…
I have a problem with email field in django model. I have set it null True and blank True but this couldn't prevent admin user forms or any other web forms where i include email, to not require email if…
I am trying to make layout in my html form page and I have 2 problem. 1- As you can see in screenshot number 1 below, I wanted to add a button next to the type field, but the button…
When a queryset is sorted by a field in a related model performance decreases drastically. I use mysql. For example, I have two models: class Event(models.Model): idEvent = models.BigAutoField(primary_key=True) created_at = models.DateTimeField(db_index=True, verbose_name=_('date')) processed_at = models.DateTimeField(auto_now_add=True, verbose_name=_('processed')) data = models.TextField()…
I have one database model, let's say ModelA: class ModelA(models.Model): field_1 = models.ManyToManyField( "core.ModelB", blank=True ) user = models.ForeignKey("core.User", on_delete=models.CASCADE) type = models.CharField(choices=ModelATypes.choices) The field_1 of ModelA is a many to many field that references ModelB. class ModelB(models.Model): uid =…
I use PostgreSQL in my project and have three related models: class Timer(models.Model): start = models.DateTimeField() end = models.DateTimeField() task = models.ForeignKey( Task, models.CASCADE, related_name="timers", ) class Task(models.Model): name = models.CharField(max_length=64) wanted_duration = models.DurationField() frequency = models.ForeignKey( Frequency, models.CASCADE, related_name="tasks",…
I added this line in my settings.py file in order to make a custom User model the auth_user database: AUTH_USER_MODEL = 'main.User' (main is the name of one my apps and it contains all of the models). But I later…