date_rejected = models.DateTimeField(blank=True, null=True, help_text="calculated field, based on editor decisions")
class Author(models.Model):
"authors attached to an article"
article = models.ForeignKey(Article)
primary_contact = models.BooleanField(default=False)
seq = models.PositiveSmallIntegerField()
first_name = models.CharField(max_length=150)
middle_name = models.CharField(max_length=150, null=True, blank=True)
last_name = models.CharField(max_length=150)
country_code = models.CharField(max_length=255, null=True, blank=True)
email = models.CharField(max_length=320, null=True, blank=True)
url = models.CharField(max_length=320, null=True, blank=True)
affiliation = models.TextField(null=True, blank=True)