Add belongs_to :through
Reported by Dan Kubb (dkubb) | June 27th, 2008 @ 09:46 PM
I'd like to see a belongs_to :through option added, where you could do stuff like this:
belongs_to :order
belongs_to :customer, :through => :order
The brute force approach could be to simply go: self.order.customer under the hood, which will perform two queries when self.customer is called.
A more elegant approach would be when self.customer is called to make a query that links the Order and Customer models (since self already knows the order_id) and retrieves the Customer in a single query.
It should also be possible to layer :through statements on top of each other any number of levels deep (the same as has :through is supposed to work), eg:
belongs_to :order
belongs_to :customer, :through => :order
belongs_to :affiliate, :through => :customer
Comments and changes to this ticket
-
Jonathan Stott (namelessjon) November 30th, 2008 @ 09:59 AM
- Assigned user cleared.
- State changed from “new” to “open”
-
Dan Kubb (dkubb) November 30th, 2008 @ 12:13 PM
- Assigned user set to “Dan Kubb (dkubb)”
Please note this is something we'll be working on in the dkubb/dm-core branch. I will accept responsibility for this now.
-
Dan Kubb (dkubb) December 4th, 2008 @ 03:40 AM
- State changed from “open” to “not-applicable”
I am going to close this ticket, since i submitted it. Should not use LH as a TODO list. Marking as not-applicable, although it will make it into dkubb/dm-core branch at some point in the next month or two.
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Dan Kubb (dkubb)