from django.db import models
from django.utils.text import slugify
from organization.models import BaseTenantModel

class Semester(BaseTenantModel):
    semester_id = models.AutoField(primary_key=True)
    title = models.CharField(max_length=100)
    code = models.CharField(max_length=20, unique=True)
    slug = models.SlugField(max_length=100, unique=True, blank=True)

    def save(self, *args, **kwargs):
        if not self.slug:
            self.slug = slugify(f"{self.code}-{self.title}")
        super(Semester, self).save(*args, **kwargs)

    def __str__(self):
        return self.title