I generally don't use polymorphic, but I would set up something similar
to your first suggestion.
Loan
belongs_to :lender, :class_name => 'User'
belongs_to :borrower, :class_name => 'User'
User
has_many loans, :class_name => "Loan", :foreign_key => :lender_id
has_many borrows, :class_name => "Loan", :foreign_key => :borrower_id
cheers,
Bryan
tiekuhn wrote:
Hi,
I think the question I'm stuck with is actually not totally hobo
related but the fact I'm using hobo for my application might have an
effect on the answer, so I thought I better post my question here
anyway :-).
### Basic info ###
I'm on Rails 2.3.5 and hobo 0.9.103
### What I'm working on ###
I'm currently playing around with hobo and wanted to build a little
demo app where my friends and I are able to manage all the things we
borrowed each other. (I know there are apps like this on the internet,
I just wanted to built my own to get used to hobo :-)).
So wanted to build a form where I can enter:
- the name of the thing I'm borrowing to someone
- who I'm borrowing the thing to
--> I set up the Models
User
name ..... (default hobo user model)
Loan
name:string
reminder:date
### PROBLEM ###
Now I wanted to set up 2 relations between the model.....
- Who is giving away the loan
- Who borrows the loan
????--> What do you think would be the most clever way to set up these
relations for my "use case"?????
### Idea 1 ###
Loan
belongs_to :lender, :polymorphic => true
belongs_to :borrower, :polymorphic => true
User
has_many :loans, :as => :lender
has_many :loans, :as => :borrower
--> Does this work anyway???????? (User.loans would be ambiguous,
right?)
--> how could I create a hobo form to create a new Loan and select the
borrower from a select (the app would assign me as the lender in the
controller or by hidden field I guess)
### Idea 2 ###
Loan
has_many :loan_assignments, :dependent => :destroy
has_many :users, :through => :loan_assignments, :accessible =>
true
User
has_many :loan_assignments, :dependent => :destroy
has_many :loans, :through => :loan_assignments
--> How do I restrict the hobo form, so I can only select 1 borrower
in /loans/new ???
-------
I'd be sooo happy I any of you could help me out with this.....I'm
really lost :-(
P.S. Sorry for my English, it's not my native tongue :-)
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