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sankalp committed
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from django.db import models
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from django.contrib.auth.models import User, Group
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from django.core.validators import RegexValidator
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from django.contrib.auth.hashers import make_password
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import random
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from decimal import Decimal
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from datetime import time, timedelta, datetime
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from django.core.validators import MinValueValidator, MaxValueValidator
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from django.utils import timezone
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# Abstract BaseUser Model
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class BaseUser(models.Model):
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active_status = models.BooleanField(default=True)
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first_name = models.CharField(max_length=255)
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middle_name = models.CharField(max_length=255, blank=True, null=True)
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last_name = models.CharField(max_length=255)
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email = models.EmailField(max_length=255, unique=True)
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phone = models.CharField(
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max_length=10, validators=[RegexValidator(r"^\+?1?\d{9,15}$")]
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)
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username = models.CharField(max_length=255, unique=True, blank=True, null=True)
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password = models.CharField(max_length=255)
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group = models.ManyToManyField(Group, blank=True)
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user = models.OneToOneField(User, on_delete=models.CASCADE, null=True, blank=True)
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class Meta:
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abstract = True
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def save(self, *args, **kwargs):
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if not self.username:
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self.username = f"{self.first_name.lower()}_{random.randint(1000, 9999)}"
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if self._state.adding or not self.password.startswith("pbkdf2_"):
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self.password = make_password(self.password)
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if not self.user:
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self.user = User.objects.create(
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username=self.username,
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email=self.email,
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first_name=self.first_name,
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last_name=self.last_name,
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is_staff=True,
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is_active=self.active_status,
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password=self.password,
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)
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else:
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self.user.username = self.username
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self.user.email = self.email
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self.user.first_name = self.first_name
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self.user.last_name = self.last_name
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self.user.is_active = self.active_status
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self.user.is_staff = True
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self.user.password = self.password
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super().save(*args, **kwargs)
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self.user.groups.set(self.group.all())
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self.user.save()
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def __str__(self):
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return f"{self.first_name} {self.last_name}"
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# Teacher model
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class Teacher(BaseUser):
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address = models.CharField(max_length=255)
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gender = models.CharField(max_length=1, choices=[("M", "Male"), ("F", "Female")])
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qualification_choice = (
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("BA", "BA"),
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("BBS", "BBS"),
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("BE", "BE"),
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("BEd", "BEd"),
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("BSc", "BSc"),
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("MA", "MA"),
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("MSc", "MSc"),
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("MBS", "MBS"),
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("ME", "ME"),
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("PhD", "PhD"),
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("Others", "Others"),
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)
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qualification = models.CharField(choices=qualification_choice, max_length=45)
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specialization = models.CharField(max_length=255)
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marital_status_choice = (
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("married", "Married"),
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("widowed", "Widowed"),
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("separated", "Separated"),
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("divorced", "Divorced"),
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("single", "Single"),
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)
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marital_status = models.CharField(choices=marital_status_choice, max_length=10)
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date_of_joining = models.DateField()
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class Meta:
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verbose_name = "Teacher"
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verbose_name_plural = "Teachers"
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# Student model
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class Student(BaseUser):
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date_of_birth = models.DateField(blank=False)
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gender = models.CharField(max_length=1, choices=[("M", "Male"), ("F", "Female")])
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address = models.CharField(max_length=255)
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course = models.ForeignKey("Course", on_delete=models.CASCADE)
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academic_year = models.ForeignKey("AcademicYear", on_delete=models.CASCADE)
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father_name = models.CharField(max_length=100)
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father_phone_no = models.CharField(
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max_length=10, validators=[RegexValidator(r"^\+?1?\d{9,15}$")]
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)
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father_email = models.EmailField(blank=True, null=True)
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father_occupation_choice = (
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("agriculture", "Agriculture"),
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("banker", "Banker"),
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("business", "Business"),
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("doctor", "Doctor"),
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("farmer", "Farmer"),
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("fisherman", "Fisherman"),
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("public service", "Public Service"),
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("private service", "Private Service"),
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("shopkeeper", "Shopkeeper"),
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("driver", "Driver"),
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("worker", "Worker"),
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("N/A", "N/A"),
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)
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father_occupation = models.CharField(
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choices=father_occupation_choice, max_length=45, default="N/A"
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)
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mother_name = models.CharField(max_length=100)
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mother_phone_no = models.CharField(
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max_length=10,
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validators=[RegexValidator(r"^\+?1?\d{9,15}$")],
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blank=True,
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null=True,
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)
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mother_email = models.EmailField(blank=True, null=True)
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mother_occupation_choice = (
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("agriculture", "Agriculture"),
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("banker", "Banker"),
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("business", "Business"),
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("doctor", "Doctor"),
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("farmer", "Farmer"),
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("fisherman", "Fisherman"),
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("public service", "Public Service"),
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("private service", "Private Service"),
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("shopkeeper", "Shopkeeper"),
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("driver", "Driver"),
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("houseWife", "HouseWife"),
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("worker", "Worker"),
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("N/A", "N/A"),
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)
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mother_occupation = models.CharField(
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choices=mother_occupation_choice, max_length=45, default="N/A"
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)
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guardian_name = models.CharField(max_length=100)
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guardian_phone_no = models.CharField(
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max_length=10, validators=[RegexValidator(r"^\+?1?\d{9,15}$")]
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)
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guardian_email = models.EmailField(blank=True, null=True)
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relationship_choice = (
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("father", "Father"),
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("mother", "Mother"),
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("brother", "Brother"),
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("sister", "Sister"),
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("uncle", "Uncle"),
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("aunt", "Aunt"),
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("grandfather", "Grandfather"),
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)
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relationship_with_student = models.CharField(
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choices=relationship_choice, max_length=45
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)
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class Meta:
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verbose_name = "Student"
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verbose_name_plural = "Students"
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# Staff model
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class Staff(BaseUser):
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gender = models.CharField(max_length=1, choices=[("M", "Male"), ("F", "Female")])
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position = models.CharField(
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max_length=255,
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choices=[
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("lab Assistant", "Lab Assistant"),
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("librarian", "Librarian"),
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("accountant", "Accountant"),
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("guard", "Guard"),
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("driver", "Driver"),
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("helper", "Helper"),
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("cleaner", "Cleaner"),
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],
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)
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address = models.CharField(max_length=255)
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marital_status_choice = (
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("married", "Married"),
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("widowed", "Widowed"),
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("separated", "Separated"),
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("divorced", "Divorced"),
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("single", "Single"),
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)
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marital_status = models.CharField(choices=marital_status_choice, max_length=10)
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date_of_joining = models.DateField()
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class Meta:
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verbose_name = "Staff"
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verbose_name_plural = "Staff"
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# Course model
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class Course(models.Model):
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name = models.CharField(max_length=100)
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level_choice = (
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("basic", "Basic"),
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("primary", "Primary"),
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("secondary", "Secondary"),
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("vocational traning", "Vocational Traning"),
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("higher secondary", "Higher Secondary"),
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("graduation", "Graduation"),
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("post graduation", "Post Graduation"),
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)
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level = models.CharField(choices=level_choice, max_length=45)
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course_type = models.CharField(
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max_length=10,
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choices=[("semester", "Semester-based"), ("yearly", "Yearly-based")],
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)
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duration = models.PositiveIntegerField()
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def __str__(self):
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return self.name
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class Meta:
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verbose_name = "Course"
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verbose_name_plural = "Courses"
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# AcademicYear model
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class AcademicYear(models.Model):
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year = models.CharField(max_length=255, unique=True)
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def __str__(self):
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return self.year
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class Meta:
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verbose_name = "Academic Year"
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verbose_name_plural = "Academic Years"
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# Subject model
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class Subject(models.Model):
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name = models.CharField(max_length=255)
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course = models.ForeignKey(
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"Course", on_delete=models.CASCADE, related_name="subjects"
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)
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semester_or_year_number = models.PositiveIntegerField()
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teacher = models.ForeignKey(
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"Teacher",
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on_delete=models.CASCADE,
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related_name="subjects",
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null=True,
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blank=True,
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)
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def __str__(self):
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return f"{self.name} (Sem/Year {self.semester_or_year_number})"
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class Meta:
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verbose_name = "Subject"
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verbose_name_plural = "Subjects"
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# NewsEvent model
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class NewsEvent(models.Model):
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class NewsEventType(models.TextChoices):
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NEWS = "news", "News"
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EVENT = "event", "Event"
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title = models.CharField(max_length=255)
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summary = models.TextField()
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type = models.CharField(max_length=5, choices=NewsEventType.choices)
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created_at = models.DateTimeField(auto_now_add=True)
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def __str__(self):
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return f"{self.title} ({self.type})"
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class Meta:
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verbose_name = "News/Event"
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verbose_name_plural = "News/Events"
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# Attendance model
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class Attendance(models.Model):
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id = models.AutoField(primary_key=True)
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student = models.ForeignKey("Student", on_delete=models.CASCADE)
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subject = models.ForeignKey("Subject", on_delete=models.CASCADE)
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date = models.DateField()
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status = models.CharField(
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max_length=10, choices=[("present", "Present"), ("absent", "Absent")]
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)
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class Meta:
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verbose_name = "Attendance"
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verbose_name_plural = "Attendance Records"
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# Result model
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class Result(models.Model):
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id = models.AutoField(primary_key=True)
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student = models.ForeignKey("Student", on_delete=models.CASCADE)
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subject = models.ForeignKey("Subject", on_delete=models.CASCADE)
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practical_marks = models.DecimalField(
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max_digits=5, decimal_places=2, default=Decimal("0.00")
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)
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exam_marks = models.DecimalField(
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max_digits=5, decimal_places=2, default=Decimal("0.00")
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)
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total_marks = models.DecimalField(
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max_digits=5, decimal_places=2, default=Decimal("0.00"), editable=False
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)
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def get_total(self):
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return Decimal(str(self.practical_marks or 0)) + Decimal(
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str(self.exam_marks or 0)
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)
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def save(self, *args, **kwargs):
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self.total_marks = self.get_total()
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super().save(*args, **kwargs)
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def __str__(self):
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return f"{self.student} - {self.subject} - Total: {self.total_marks}"
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class Meta:
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verbose_name = "Result"
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verbose_name_plural = "Results"
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class Library(models.Model):
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category = models.CharField(max_length=255)
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book_name = models.CharField(max_length=255)
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description = models.CharField(max_length=255)
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publication = models.CharField(max_length=255)
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publication_year = models.PositiveIntegerField()
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quantity = models.PositiveIntegerField()
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available = models.CharField(max_length=1, choices=[("Y", "Yes"), ("N", "NO")])
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date_added = models.DateField(auto_now_add=True)
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def __str__(self):
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return self.book_name
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class Meta:
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verbose_name = "Library"
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verbose_name_plural = "Library"
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# class Certificate(models.Model):
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# title = models.CharField(max_length=255)
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# student = models.ForeignKey("Student", on_delete=models.CASCADE, related_name="certificates")
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# course = models.ForeignKey("Course", on_delete=models.CASCADE, related_name="certificates")
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# issued_date = models.DateField(default=timezone.now)
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# is_verified = models.BooleanField(default=False)
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# certificate_file = models.FileField(upload_to="certificates/", blank=True, null=True)
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# description = models.TextField(blank=True, null=True)
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# def __str__(self):
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# return f"{self.title} - {self.student.first_name} {self.student.last_name}"
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# class Meta:
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# verbose_name = "Certificate"
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# verbose_name_plural = "Certificates"
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class Marksheet(models.Model):
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student = models.ForeignKey("Student", on_delete=models.CASCADE, related_name="marksheets")
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course = models.ForeignKey("Course", on_delete=models.CASCADE, related_name="marksheets")
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total_marks = models.PositiveIntegerField(validators=[MinValueValidator(0)], default=Decimal("0.00"), blank=True, null=True)
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obtained_marks = models.PositiveIntegerField(validators=[MinValueValidator(0)], default=Decimal("0.00"))
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grade = models.CharField(max_length=2, choices=[
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("A+", "A+"),
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("A", "A"),
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("B+", "B+"),
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("B", "B"),
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("C+", "C+"),
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("C", "C"),
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("D", "D"),
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("E", "E"),
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], blank=True, null=True)
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class Meta:
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verbose_name = "Marksheet"
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verbose_name_plural = "Marksheets"
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unique_together = ("student", "course")
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def calculate_totals(self):
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subject_marks = self.subject_marks.all()
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total_marks = sum(subject.total_practical_marks + subject.total_theory_marks for subject in subject_marks) or Decimal("0.00")
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obtained_marks = sum(subject.obtained_practical_marks + subject.obtained_theory_marks for subject in subject_marks) or Decimal("0.00")
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return total_marks, obtained_marks
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def save(self, *args, **kwargs):
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if not self.pk:
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super().save(*args, **kwargs)
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self.total_marks, self.obtained_marks = self.calculate_totals()
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if self.total_marks > 0:
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percentage = (self.obtained_marks / self.total_marks) * 100
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if percentage >= 90:
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self.grade = "A+"
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elif percentage >= 80:
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self.grade = "A"
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elif percentage >= 70:
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self.grade = "B+"
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elif percentage >= 60:
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self.grade = "B"
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elif percentage >= 50:
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self.grade = "C+"
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elif percentage >= 40:
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self.grade = "C"
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elif percentage >= 30:
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self.grade = "D"
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else:
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self.grade = "E"
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super().save(*args, **kwargs)
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def __str__(self):
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return f"Marksheet: {self.student.first_name} {self.student.last_name}"
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class SubjectMark(models.Model):
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marksheet = models.ForeignKey(Marksheet, on_delete=models.CASCADE, related_name="subject_marks")
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subject = models.ForeignKey("Subject", on_delete=models.CASCADE, related_name="subject_marks")
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obtained_practical_marks = models.DecimalField(max_digits=5, decimal_places=2, default=Decimal("0.00"))
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total_practical_marks = models.DecimalField(max_digits=5, decimal_places=2, default=Decimal("20.00"))
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obtained_theory_marks = models.DecimalField(max_digits=5, decimal_places=2, default=Decimal("0.00"))
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total_theory_marks = models.DecimalField(max_digits=5, decimal_places=2, default=Decimal("80.00"))
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total_marks = models.DecimalField(max_digits=5, decimal_places=2, default=Decimal("0.00"))
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def get_total(self):
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return Decimal(str(self.obtained_practical_marks or 0)) + Decimal(str(self.obtained_theory_marks or 0))
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def save(self, *args, **kwargs):
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self.total_marks = self.get_total()
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super().save(*args, **kwargs)
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self.marksheet.save() # Trigger the marksheet save to recalculate totals
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class Meta:
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unique_together = ("marksheet", "subject")
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def __str__(self):
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return f"{self.subject.name} - {self.marksheet.student.first_name}"
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Reference in new issue
Block a user