submodel, subclass or subcontroller ruby on rails references -

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i busy making ruby on rails app.

i want make model contains text model, picture model , link model. every model can have comments, don't want make different comment models text, picture , link model. possible make media model witch has subclass(or how called) aka: picture model, text model , link model. or there other clean way this. thanks

you can create comment model has polymorphic association:

# comment model belongs_to :commentable, :polymorphic => true  # other model should has comments has_many :comments, :as => :commentable

you can add above line every model needs comments. in order have polymorphic association need have columns in comments table in db:

commentable_id   - int commentable_type - string

you can use plugin comments, on example this.


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