From: Logan Capaldo <logancapaldo@...>
Date: 2006-08-16T13:10:12+09:00
Subject: Re: Dr Nic’s Magic Models


On Aug 15, 2006, at 11:09 AM, Dr Nic wrote:

> Logan Capaldo wrote:
>> You don't always want a has_many :through though. Sometimes the only
>> thing that exists is the many-to-many relationship. (A person has and
>> belongs to  many clubs for instance.)
>
> Just so I understand, let's play with some tables:
>
> people =>* group_people *<= groups
>
> The following sequence of commands should work:
>
>> person = Person.find_first
>> groups = person.groups
>
> Is that how a HABTM would work too?
>
> If so, then to emulate a HABTM, you just need to ignore the join table
> in your app, and never call peron.group_people, etc.
>
> My doubt comes from not having used HABTM since the start of the year;
> but I think from the object's point of view, the HABTM and the  
> has_many
> :through behave the same to the Person object if you send it the  
> groups
> method.
>
> Nic
>
> -- 
> Posted via http://www.ruby-forum.com/.
>

Yeah they behave the same, but sometimes you don't want the overhead  
of creating a model just so AR is satisfied ;)