from django.db import models
from .question_model import Question


class Option(models.Model):
    question = models.ForeignKey(Question, on_delete=models.CASCADE, related_name='options')
    letter = models.CharField(max_length=1)
    text = models.TextField()

    class Meta:
        unique_together = ['question', 'letter']

    def __str__(self):
        return f"{self.letter}. {self.text[:30]}"