I use inheritance in my model. An event has different types:
Event < activity
Event < training
Event < game
I want to set session data to every event type like
game.user_id = session[:user_id]
training.user_id = session[:user_id]
activity.user_id = session[:user_id]
I want to avoid writing @game.user_id = session[:user_id] , ..., ... in every create method in the controller of activity, game and training
Someone knows how to approach this best.
Thanks
Perhaps you are looking for a before_filter that resides in your ApplicationController? Then in each controller, you can set the before_filter to run on create actions.
ApplicationController
def set_user_ids
game.user_id = session[:user_id]
training.user_id = session[:user_id]
activity.user_id = session[:user_id]
end
...
end
OneController < ApplicationController
before_filter :set_user_ids, :only => [:create]
...
end
TwoController < ApplicationController
before_filter :set_user_ids, :only => [:create]
...
end
Don't use game.user_id, instead you can do this:
game = current_user.games.build(params[:game])
if game.save
# do something
else
# do something else
end
Repeat for your other controllers too!
The associations guide may be helpful too.
Generally you'll want to use the built-in scoping that Rails provides. Just to flesh out what @Radar already posted:
class ApplicationController < ActionController::Base
before_filter :find_current_user
private
def find_current_user
@current_user = User.find( session[:user_id] )
end
end
class EventsController < ApplicationController
def create
@event = @current_user.events.build( params[:event] )
@event.save!
end
end
This assumes that you have setup the associations in your model:
class User
has_many :events
end
class Event
belongs_to :user
end
This is also a rather handy mechanism if you need to restrict what a user can see or edit:
class EventsController < ApplicationController
def index
@events = @current_user.events # only fetch current users events
end
def update
@event = @current_user.events.find( params[:id] ) # can't update other user's events
@event.update_attributes!( params[:event] )
end
end
