Passing variable to the url in rails

Question

I am passing variable like that:

new_sub_request_path(request_id:@request.id)

so i get this url:

http://localhost:3000/sub_requests/new?request_id=1

In my controller i want to assign that request_id like that:

@sub_request = SubRequest.new(sub_request_params)
@sub_request.request_id = params[:request_id]

and my strong parameters are defined:

def sub_request_params
   params.require(:sub_request).permit(:description, :diagnos, :price, :payment, :request_id)
end

But after save i have empty request_id attribute, so it seems that it is not assigned. What am I doing wrong?

EDIT: Inspecting parameters in the console showed that i only have those attributes that are in my form.

EDIT2:

 def create
    @sub_request = SubRequest.new(sub_request_params)
    @sub_request.request_id = params[:sub_request][:request_id]
    respond_to do |format|
      if @sub_request.save
        format.html { redirect_to @sub_request, notice: 'Sub request was successfully created.' }
        format.json { render :show, status: :created, location: @sub_request }
      else
        format.html { render :new }
        format.json { render json: @sub_request.errors, status: :unprocessable_entity }
      end
    end
  end

Try @sub_request.request_id = params[:sub_request][:request_id] — Pavan
– Pavan, Commented Jul 14, 2015 at 8:10
@Pavan yes, request has_many sub_requests, and sub_request belongs_to request — yerassyl
– yerassyl, Commented Jul 14, 2015 at 8:50

Pavan · Accepted Answer · 2015-07-14 08:57:13Z

1

You have to define something like below for the request_id to save in sub_requests table.

In your create method add this line

@request = Request.find(params[:request_id]) and do

@sub_request.request_id = @request.id

or

You can just add a hidden_field in your form like below

<%= f.hidden_field :request_id, :value => @request.id %>

And make sure you are permitting :request_id in your sub_request_params

answered Jul 14, 2015 at 8:57

Pavan

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