[Rails] Re: what's the advantage of using build and << ??

2008-12-24 Thread Zhenning Guan
MaD wrote: > << adds records to a association-collection (no matter what kind of > association). it returns itself (the collection) so method calls may > be chained. > > btw: in this example @article doesn't have to be saved when a new > comment is added (comment has article_id as foreign key). ;

[Rails] Re: what's the advantage of using build and << ??

2008-12-24 Thread MaD
just saw that this could be misunderstood: article has to be saved to be able to make a association, but it doesn't have to be saved after adding a new comment. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Ruby on

[Rails] Re: what's the advantage of using build and << ??

2008-12-24 Thread MaD
<< adds records to a association-collection (no matter what kind of association). it returns itself (the collection) so method calls may be chained. btw: in this example @article doesn't have to be saved when a new comment is added (comment has article_id as foreign key). ;-) --~--~-~--~

[Rails] Re: what's the advantage of using build and << ??

2008-12-23 Thread Ryan Bigg
<< should save @article when you add a new comment. - Ryan Bigg Freelancer http://frozenplague.net On 24/12/2008, at 3:02 PM, Zhenning Guan wrote: > > Rails give us two ways to create a asociation object: > @article = Article.new(params[:article]) > @article.comments << Comment.new(par