i have a comment Model. it has already “belongs_to :poem” entry.
is there any way to use this model to another controller (eg:-
belongs_to :post) . if it is possible then how do i do the migration
and other stuffs please explain a bit.
nirosh
I don’t think controllers have anything to do with your question. A
controller is a program that receives requests from the browser and
processes them, most likely involving models, and then sends a
response back to the browser.
What you are talking about, I think, is about activerecord
associations. You can make as many associations between models
(tables) as you wish. A comment can belong to a poem and also to a
post:
class Comment < ActiveRecord::Base
belongs_to :poem
belongs_to :post
end
class Poem < ActiveRecord::Base
has_many :comments
end
class Post < ActiveRecord::Base
has_many :comments
end
Hi nirosh,
belongs_to associations represent other models/tables not controllers.
You can have as many different Controllers as you like, created
through migrations or manually - they are simply the way of ‘getting
in’ to your application. All the heavy lifting should be done in the
models.
You can set your models up as so:
comment
has_many: poems
has_many: posts
poem
belongs_to: comment
post
belongs_to: comment
Your poem and post tables would then each have a column/attribute:
comment_id
Each poem and each post could then ‘attach’ themselves to the same
comment_id so that each single comment could be associated with both a
poem and a post.
You create your post migration the same way you created your poem
migration, apart from any additional attributes specifically related
to post.
HTH
Paul