Rails - Apr 2010 - undefined method `call' for nil:NilClass

why would I be getting this error after submitting my form?

NoMethodError in EchantillonsController#create
undefined method `call'' for nil:NilClass

This is my create method in the controller:

  def create

    @echantillon = Echantillon.new(params[:echantillon])
    @echantillon.set_eros_values

    respond_to do |format|
      if @echantillon.save
         if params[:echantillon][:vignette].blank?
            format.html { redirect_to(@echantillon) }
            format.xml  { render :xml => @echantillon, :status
=> :created, :location => @echantillon }
         else
            render :action => "location"
         end
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @echantillon.errors, :status
=> :unprocessable_entity }
      end
    end
  end

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I think only two lines could cause this
>     @echantillon.set_eros_values
>       if @echantillon.save
Which line does it say the error comes from in your output?

You could write some

Rails.logger.debug "Hi, this is the current status:
#{@echantillon.inspect}"

between every line and then watch your logs/development.log to see
where exactly it breaks.

I would guess on set_eros_values (whatever that function is supposed
to do :)

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Hi
> why would I be getting this error after submitting my form?
> 
> NoMethodError in EchantillonsController#create
> undefined method `call'' for nil:NilClass
> 
Can''t say from this what caused error. Please paste in which line error
happened and what is there on that line.

Just a guess only
>          if params[:echantillon][:vignette].blank?
   instead of this please try

   unless params[:echantillon][:vignette]


Sijo
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The cause of this error is on this line:
>          else
>             render :action => "location"
>          end
It should be:

else
  format.html {render :action => ''location''}
end


When using respond_to, the format of the response is required for any
render or redirect_to methods. :)

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