Question

Is there any way on manually doing the “create” function?
I have an scaffold, (model/controller/view), so what I want to do is to change a little bit the parameters that the user gave me.

 def create

  @meme = Meme.new(params[:meme])

  respond_to do |format|
    if @meme.save
      format.html { redirect_to @meme, notice: 'Meme was successfully created.' }
      format.json { render json: @meme, status: :created, location: @meme }
    else
      format.html { render action: "new" }
      format.json { render json: @meme.errors, status: :unprocessable_entity }
    end
  end
end

Is there any way of doing something like:

def create

  @meme = Meme.new
  @meme.name = params([:name])
  @meme.id = params([:id])
  @meme.url = @[e-mail] 




  respond_to do |format|
    if @meme.save
      format.html { redirect_to @meme, notice: 'Meme was successfully created.' }
      format.json { render json: @meme, status: :created, location: @meme }
    else
      format.html { render action: "new" }
      format.json { render json: @meme.errors, status: :unprocessable_entity }
    end
  end
end

So as you can see in the last example I want to save a URL concatenating the name and the id,
is there any way of achieving this from the controller.

Thanks in advance.

Answer 1

The code you are looking for is kind of a combination of both of your samples:

def create

  @meme = Meme.new(params[:meme])
  @meme.url = "#{@meme.name}-#{@meme.id}" 

  respond_to do |format|
    if @meme.save
      format.html { redirect_to @meme, notice: 'Meme was successfully created.' }
      format.json { render json: @meme, status: :created, location: @meme }
    else
      format.html { render action: "new" }
      format.json { render json: @meme.errors, status: :unprocessable_entity }
    end
  end
end

I threw in a dash between the name and the id just for kicks.

You might also want to think about doing this in a before_save hook inside the Meme model, that would be a cleaner solution than having it in the controller. Good luck!