declare value for strong parameters

Question

i have problem when i have to declare value for one of parameters in my permit and out of post form values . look at my code :

class QuoteController < ApplicationController
  autocomplete :author, :name, :full => true
  autocomplete :Category, :title, :full => true

  def new
    @quotes = Quote.new
  end

  def create
    @quotes = Quote.new(quotesParams)
      if @quotes.save
        redirect_to root_url
      else
        redirect_to root_url
      end
  end

    private
    def quotesParams
      params.require(:quote).permit(:text,:author_id, :category_id, 
                                   {:send_type => ["web"]}, 
                                   {:user_id => [current_user.id])
    end
end

but when i try to save in database send_type and user_id is null

score 1 · Answer 1 · answered Jan 31 '15 at 18:24

Strong parameters is more about the structure of the parameters than the actual parameter values. So things like:

{ :send_type => ["web"] }
{ :user_id => [current_user.id] }

don't assign default values, they're specifying the structure of nested values in params.

I think you should handle your defaults in two places:

send_type should default to 'web' inside the model.
user_id should be required by the model but the controller should set the default (because that's who knows about current_user.

Something like this in your controller:

def create
  @quotes = Quote.new(quotesParams) { |q| q.user_id = current_user.id }
  #...
end

def quotesParams
  params.require(:quote).permit(:text, :author_id, :category_id, :send_type)
end

and your model can default send_type to 'web' if the controller doesn't supply a value.

score 0 · Accepted Answer · answered Jan 31 '15 at 18:31

Try the following code for your controller:

class QuoteController < ApplicationController
  autocomplete :author, :name, :full => true
  autocomplete :Category, :title, :full => true

  def new
    @quotes = Quote.new
  end

  def create
    @quotes = Quote.new(quotesParams)
    @quotes.send_type = "web"
    @quotes.user_id = current_user.id

    if @quotes.save
      redirect_to root_url
    else
      redirect_to root_url
    end
  end

  private
  def quotesParams
    params.require(:quote).permit(:text, :author_id, :category_id)
  end
end

declare value for strong parameters

2 Answers2