here is my problem.
I have a Post model, a Tag model, and they are related to each other
by an has_and_belongs_to_many relationship.
Now I run ./script/console:
p.tags = [t]
The result is that a Post record is created and saved, and then also a
Tag record is created and saved, together with a record in the join
The question is: why are the tag and the record in the join table
saved? Shouldn't they wait for an explicit save?
To be more clear, why the last line ( p.tags=[t] ) triggers the
creation in the database of a record in the tags table and another in
the posts_tags table? Is there a way from stopping this until an
I hope someone can answer my question, I'm quite a rails newbie so I
need help. Thanks.