I have a MySQL table. Its light schema as follows
id int not null, auto-inc. unsigned
comment text, not null
comment_id, int, ##This is the parent_id
of the comment if it exist.
some other irrelevant fields
In the RoR Comment model I have
def Comment < ActiveRecord::Base
Java hibernate comparison (high level)
What I have to do in hibernate is change the hbm XML class for
Comments to let hibernate know that Comments could have many children
with a default attrib as Lazy (More on Lazy to come). Then I would
have to edit the Comment Class to include the Set (childrenSet) that I
just set up in the Comments hbm XML file. Now when I get a comment,
any comment I could check the set to see if I had any children. The
important part here is that as long as I had my DB session open, I
would have to “Request” the childrenSet by asking for the childrenSet
(ie getChildrenSet). If I never asked for the childrenSet hibernate
would never get nor instantiate those objects (this is the definition
of “lazy” mentioned above)
So what I would like to know is two things.
How would I get all children for a particular comment in RoR in the
Is there such a feature as lazy in RoR?
BTW, do you think the field named comment in my comments table could
get a little tricky with all the RoR rules?