admin 自定义字段颜色 并加以简单判断

在model中
class Books(models.Model):
    nid = models.AutoField(primary_key=True, )
    title = models.CharField(max_length=32, verbose_name="书名")
    date = models.DateField(verbose_name="出版日期")
    price = models.DecimalField(max_digits=6, decimal_places=2, verbose_name="价格")
    publish = models.ForeignKey(to=Publishes, on_delete=models.CASCADE, verbose_name="出版社")
    author = models.ManyToManyField(to="Authors")

    def 价格(self):
        if self.price > 500:
            return mark_safe(('<span style="color: red;">{}</span>').format(self.price))
        return mark_safe(('<span style="color: green;">{}</span>').format(self.price))

    def __str__(self):
        return self.title

    class Meta:
        verbose_name_plural = "书籍"

admin中

list_display = ["nid", "title", "price", "publish", "date", "作者", "价格"]

不过不能编辑