models.py

# Uncomment the following imports before adding the Model code
from django.db import models
from django.utils.timezone import now
from django.core.validators import MaxValueValidator, MinValueValidator


# Create your models here.

class CarMake(models.Model):
    name = models.CharField(max_length=100, unique=True)
    description = models.TextField(blank=True)
    country_of_origin = models.CharField(max_length=50, blank=True)
    established_year = models.PositiveIntegerField(null=True, blank=True)
    
    def __str__(self):
        return self.name


class CarModel(models.Model):
    car_make = models.ForeignKey(CarMake, on_delete=models.CASCADE)  # Many-to-One relationship
    name = models.CharField(max_length=100)
    CAR_TYPES = [
        ('Sedan', 'Sedan'),
        ('SUV', 'SUV'),
        ('Wagon', 'Wagon'),
    ]
    type = models.CharField(max_length=10, choices=CAR_TYPES, default='SUV')
    year = models.IntegerField(default=2023,
     validators=[
            MaxValueValidator(2023),
            MinValueValidator(2015)
        ])
   
    # Additional optional field: engine size (for example)
    engine_size = models.CharField(max_length=50, blank=True, help_text="Engine size description")
    
    def __str__(self):
          return self.name  # Return the name as the string representation