Active Record Associations

rubyonrails-talk
#1

If I understand correctly what you need, a computer may belong to many
users and one user can have many computer, right? same for phones, I
assume.

In this case, the relationship is :has_and_belongs_to_many, but you do
not need the classes OwnComputer and the other one. you just need two
tables (without id) which will contain, for each record, a couple of
id identifying one coupling (user-computer for one table, user-phone
for the other).
have a look at:
http://wiki.rubyonrails.org/rails/pages/has_and_belongs_to_many
for naming conventions.

Regards,

Rey9999

#2

Rey9999 wrote:

If I understand correctly what you need, a computer may belong to many
users and one user can have many computer, right? same for phones, I
assume.

Yes

In this case, the relationship is :has_and_belongs_to_many, but you do

How can I find all users whose name is "James%" and their computers (not
mobiles)?

User.find(:all, ???)

#3

How can I find all users whose name is "James%" and their computers (not
mobiles)?

User.find(:all, ???)

Help ???

#4

Or use has_many :through instead.

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#5

Oh by the way if you do that you'll end up with an array of arrays.
Might not be what you want.

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#6

Why is a good question here. In other words, what are you going to do
with the computers and users once
You get them.

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