Question

当我的目录模型中添加了一个字段时，我在Django中返回错误。该模型只需使用＆＃34; Article＆＃34;外键，但当＆＃34;年度＆＃34;添加了外键我在admin中收到以下错误：

no such column: subscriber_catalog.annual_items_id

导致此错误的原因是什么？

class Annual(models.Model):
    year_id = models.IntegerField(max_length=4)
    start_date = models.CharField(max_length=6)
    end_date = models.CharField(max_length=6)
    def __unicode__(self):
        return unicode(self.year_id)

class Annual_Issue(models.Model):
    annual_id = models.ForeignKey(Annual, related_name='annual_ids')
    issue_id = models.ForeignKey(Issue, related_name='issues')
    def __unicode__(self):
        return self.annual_id

class Article(models.Model):
    title = models.CharField(max_length=200)
    abstract = models.TextField(max_length=1000, blank=True)
    full_text = models.TextField(blank=True)
    proquest_link = models.CharField(max_length=200, blank=True, null=True)
    ebsco_link = models.CharField(max_length=200, blank=True, null=True)

    def __unicode__(self):
        return self.title


class Catalog(models.Model):
    issue_items = models.ForeignKey(Issue, related_name='catalogissue')
    annual_items = models.ForeignKey(Annual, related_name='catalogannual')

Answer 1

它正在寻找annual_items_id，但在您的模型中，以simmilar方式命名的唯一字段称为annual_id ...检查您的字段命名以及是否正确应用迁移

Django在admin中没有这样的列错误

1 个答案: