Python 测验模型中的图像

我正在试着定制

我希望它可以为每个问题和每个答案添加图像。但有些人也不会有任何图像。最好的方法是什么

这是实际模型：

class Question(models.Model):

    quiz = models.ManyToManyField(Quiz, blank=True, )

    category = models.ForeignKey(Category, blank=True, null=True, )

    content = models.CharField(max_length=1000, 
                               blank=False, 
                               help_text="Enter the question text that you want displayed",
                               verbose_name='Question',
                               )

    explanation = models.TextField(max_length=2000,
                                   blank=True,
                                   help_text="Explanation to be shown after the question has been answered.",
                                   verbose_name='Explanation',
                               )


    class Meta:
        verbose_name = "Question"
        verbose_name_plural = "Questions"
        ordering = ['category']


    def __unicode__(self):
        return self.content


class Answer(models.Model):
    question = models.ForeignKey(Question)

    content = models.CharField(max_length=1000, 
                               blank=False, 
                               help_text="Enter the answer text that you want displayed",
                               )

    correct = models.BooleanField(blank=False, 
                                  default=False,
                                  help_text="Is this a correct answer?"
                                  )

    def __unicode__(self):
        return self.content

使用创建新模型

• 形象,
• 键入-答案或问题
• 答案或问题

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然后，您可以在回答/问题中添加任意数量的图像。

这是一种非常流行的解决方案。