How to use has_many and belongs_to?

Rails
1

Hello there,
im kind of a newbie with ruby on rails and i have a question about
has_many and belongs_to because i saw tutorials where they use it but
i don’t see how it works ? What if you don’t use it ?
In fact i don’t see if it is actually usefull…

Please give me some light =)

2

has_many / belongs_to is how you tell Rails that models are related…

Start reading here:

http://api.rubyonrails.org/

Look at the ActiveRecord::Base entry to begin your instruction
Grasshopper…

3

On 18 Nov 2008, at 12:51, BoBKilla wrote:

Hello there,
im kind of a newbie with ruby on rails and i have a question about
has_many and belongs_to because i saw tutorials where they use it but
i don’t see how it works ? What if you don’t use it ?
In fact i don’t see if it is actually usefull…

Well associations are pretty fundamental to Active Record. You don’t
have to use them but you’d just be creating a lot of work for yourself
and missing out on a lot of the handy bits in rails.
rails.info is probably not a bad
place to start.

Fred

4

thanks, now i see why it is usefull to use it !