Django实践：个人博客系统（第七章 Model的设计和使用）

class Publisher(models.Model):
    name = models.CharField(max_length=30)
    address = models.CharField(max_length=50, blank=True)
    city = models.CharField(max_length=60)
    state_province = models.CharField(max_length=30, blank=True)
    country = models.CharField(max_length=50)
    website = models.URLField(blank=True)

    class Meta:
        verbose_name = ‘出版者‘
        verbose_name_plural = verbose_name

    def __unicode__(self):
        return self.name


class Author(models.Model):
    first_name = models.CharField(max_length=30)
    last_name = models.CharField(max_length=40)
    email = models.EmailField()

    class Meta:
        verbose_name = ‘作者‘
        verbose_name_plural = verbose_name

    def __unicode__(self):
        return self.first_name


class Book(models.Model):
    title = models.CharField(max_length=100)
    authors = models.ManyToManyField(Author, blank=True)
    publisher = models.ForeignKey(Publisher, blank=True)
    publication_date = models.DateField(blank=True)

    #class Meta:
    #    verbose_name = ‘书名‘
    #    verbose_name_plural = verbose_name

    def __unicode__(self):
        return self.title

class Publisher(models.Model):
    name = models.CharField(max_length=30，verbose_name = ‘姓名‘)
    address = models.CharField(max_length=50, blank=True)