Hi,
I have tried to sent this e-mail before, but I guess it didn't make its way
to the groups so I am trying to resent it, if this is a double post, I am
sorry. I am having trouble understanding m2m relation to self with a
intermediary table. Here is my table setup stripped:
class Post(models.Model):
relevancy =
models.ManyToManyField("self",
through="Traffic",symmetrical=False,related_name="relevant",blank=True)
class Traffic(models.Model):
tfrom = models.ForeignKey(Post,related_name="tfrom")
tto = models.ForeignKey(Post,related_name="tto")
count = models.PositiveIntegerField(default=0)
This is to be a simple visitor tendency tool, which I keep records of
which link clicked on which post. I am confused about, getting related
items. For example, given a post, how to get set of posts which have
traffic from the post (post.tfrom_set ? ), or how to get post with a
max "count" which is trafficked to the post
( post.tto_set.max("count") ? ) etc.
And also, what is the recommended way of getting, for example, given a post,
which is the post with max "count" value from this post. Like, get a list of
traffics where tfrom is given post, and get a Traffic object with max
"count" and get tto post of that traffic.
PS: English is not my main language. Sorry if I wasn't clear
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