Question

This a dumb question but even after some research i can’t fix this problem.
I have a form in one of my view that allow me to get a value from a visitor.
I’m trying to get that value submitted in the form in my controller. And I don’t understand
why but it seems that the only value that I get with this code is 0..
I think I don’t use the correct synthax.
Here is my code from the view :

.mybox
            %p Tentative de vote.
            = @useful_tool.nbofrate
            = @useful_tool.nbtotal
            = @useful_tool.newrate
            = form_for(@useful_tool) do |f|
              = f.select :newrate, [['1 étoile', 1],['2 étoiles', 2],['3 étoiles', 3],['4 étoiles', 4],['5 étoiles', 5]]
              = f.submit

Here is my code from my controller :

  def update
    @useful_tool = UsefulTool.find_by_slug!(params[:id])
    @useful_tool.nbofrate = @useful_tool.nbofrate + 1
    value = params[:newrate]
    @useful_tool.nbtotal += value.to_i
    @useful_tool.rating = @useful_tool.nbtotal / @useful_tool.nbofrate
    update! { url_for(action: "index") }
  end

Because apparantly value must be nil I don’t understand why.
Any help would be very apreciate. Thanks a lot.

Answer 1

try to use to_s.to_d with nbtotal and value.

or you can explicitly check for nil