I have a tough time figuring out when associations are saved. I can of course refer to the associations guide, or test from the console each time (which is what I do), but is there a general underlying thumb rule that I can use?
For example: class Blog < ActiveRecord::Base has_many :posts end class Post < ActiveRecord::Base belongs_to :blog end blog = Blog.create(name:'My Travel Blog') post = Post.create(name: 'My first post') blog.posts << post # is post's blog_id field already updated in the database? or do I need to call post.save? Will blog.save work as well? Perhaps there is an underlying principle, such as (*this is only an example, it is not generally true*) - associations are never saved without explicit call to save on the model that has a foreign key field. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/50433fa8-cb96-45f7-98bc-4c21baec6c5d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
