"Wolas!" wrote:
> it would be a good idea to post the controller method update and the
> class Model.

But how can I fix that error message? Database information is updating 
properly but page is redirecting to HTTP 500 Internal server error page 
and I am unable to fix this error. Please help me how can i fix it. I am 
using code below to be updating model entry... and same code works 
properly for other modules.

  # PUT /models/1
  # PUT /models/1.xml
  def update
    @model = Model.find(params[:id], :include=>:user)

    respond_to do |format|
      if @model.update_attributes(params[:model])
        @model.user.roles.clear
  @model.user.roles << Role.find_or_create_by_name("model")
        #flash[:notice] = "Model was successfully updated."
        #format.html { redirect_to([:admin, @model]) }
        #format.xml  { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @model.errors, :status => 
:unprocessable_entity }
      end
    end
  end



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