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如何使用这些模型来类似下面的执行联接和统计查询:如何执行计数并加入django?
select count(*),site_url from connection_ss
join site_ss on to_id_id = site_id
where site_ss.source_id = 1 group by site_url order by count desc
这里是我的模型:
class site(models.Model):
site_id = models.AutoField(primary_key=True)
site_url = models.URLField(unique=True)
human_verified = models.BooleanField(default=False)
last_entry2 = models.DateTimeField(default='2009-01-01')
source_id = models.ForeignKey(source)
author_alias = models.TextField()
class connection(models.Model):
from_id = models.ForeignKey(site,related_name="from_get")
to_id = models.ForeignKey(site,related_name = "to_get")
class Meta:
db_table = "connection_ss"
unique_together = (("from_id","to_id"),)
认为我明白了。谢谢! – goh 2010-10-15 07:35:51