How to add foreign key value on controller create

Question

I have a simple database where users can create a task. I would like the index page to show which users created which task The relationship between task and user is 1 user to many tasks. The task has a user_id foreign key. Users can only create a task when they are logged in via Devise.

My create controller is as follows but I don't know how to record the foreign key for that task i.e. the user that created it.

def create
    @challenge = Challenge.new(challenge_params)

    respond_to do |format|
      if @challenge.save
        format.html { redirect_to users_path, notice: 'Challenge was successfully created.' }
        format.json { render :show, status: :created, location: @challenge }
      else
        format.html { render :new }
        format.json { render json: @challenge.errors, status: :unprocessable_entity }
      end
    end
  end

I think thats the problem. This was created by rails scaffold but I don't have this method- presumably this is the way to pass in the user_id but I don't know how to create a method to do this — Sebastian Zeki
– Sebastian Zeki, Commented Jul 17, 2015 at 16:57

Nermin · Accepted Answer · 2015-07-17 17:05:23Z

2

Then you should this:

@challenge = Challenge.new(challenge_params.merge({user_id: current_user.id}))

answered Jul 17, 2015 at 17:05

Nermin

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1 Comment

Sebastian Zeki Over a year ago

OK. it worked. Thanks. I suppose the learning point is that the params that are passed are also part of the INSERT TO statement. Cheers

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