update

app/models.py

@@ -0,0 +1,92 @@
+from django.db import models
+from django.contrib.auth.models import Group
+from django.core.validators import RegexValidator
+from django.contrib.auth.hashers import make_password
+import random
+
+
+class BaseUser(models.Model):
+    first_name = models.CharField(max_length=255)
+    last_name = models.CharField(max_length=255)
+    email = models.EmailField(max_length=255, unique=True)
+    phone = models.CharField(
+        max_length=15, validators=[RegexValidator(r"^\+?1?\d{9,15}$")]
+    )
+    username = models.CharField(max_length=255, unique=True, blank=True, null=True)
+    password = models.CharField(max_length=255)
+    active_status = models.BooleanField(default=True)
+    group = models.ForeignKey(Group, on_delete=models.SET_NULL, null=True, blank=True)
+
+    class Meta:
+        abstract = True
+
+    def save(self, *args, **kwargs):
+        if not self.username:
+            self.username = f"{self.first_name.lower()}_{random.randint(1000, 9999)}"
+        if self._state.adding or not self.password.startswith("pbkdf2_"):
+            self.password = make_password(self.password)
+        super().save(*args, **kwargs)
+
+    def __str__(self):
+        return f"{self.first_name} {self.last_name}"
+
+
+class Teacher(BaseUser):
+    address = models.CharField(max_length=255)
+    gender = models.CharField(max_length=1, choices=[("M", "Male"), ("F", "Female")])
+
+
+class Student(BaseUser):
+    gender = models.CharField(max_length=1, choices=[("M", "Male"), ("F", "Female")])
+    course = models.ForeignKey("Course", on_delete=models.CASCADE)
+    academic_year = models.ForeignKey("AcademicYear", on_delete=models.CASCADE)
+
+
+class Staff(BaseUser):
+    position = models.CharField(
+        max_length=255,
+        choices=[("clerk", "Clerk"), ("assistant", "Assistant"), ("guard", "Guard")],
+    )
+    address = models.CharField(max_length=255)
+
+
+class Course(models.Model):
+    name = models.CharField(max_length=100)
+    course_type = models.CharField(
+        max_length=10,
+        choices=[("semester", "Semester-based"), ("yearly", "Yearly-based")],
+    )
+    duration = models.PositiveIntegerField()
+
+    def __str__(self):
+        return self.name
+
+
+class AcademicYear(models.Model):
+    batch = models.CharField(max_length=255, unique=True)
+
+    def __str__(self):
+        return f"Batch {self.batch}"
+
+
+class Subject(models.Model):
+    name = models.CharField(max_length=255)
+    course = models.ForeignKey(
+        "Course", on_delete=models.CASCADE, related_name="subjects"
+    )
+    semester_or_year_number = models.PositiveIntegerField()
+
+    def __str__(self):
+        return f"{self.name} (Sem/Year {self.semester_or_year_number})"
+
+
+class NewsEvent(models.Model):
+    title = models.CharField(max_length=255)
+    summary = models.TextField()
+    type = models.CharField(
+        max_length=5, choices=[("news", "News"), ("event", "Event")]
+    )
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    def __str__(self):
+        return f"{self.title} ({self.get_type_display()})"