On Wednesday, 20 August 2014 03:45:44 UTC-4, Ruby-Forum.com User wrote: > > I am using Ruby 1.9.3 and Rails 3.2.16. I follow "Agile web development > with rails" book. > > I am trying to make **Expense Management** application. > > I am providing Heroku links as follow: > " https://expense-management-app.herokuapp.com/manageexpense " > > In above link, When I click on "Add to count" button then I can able to > redirect to > > "https://expense-management-app.herokuapp.com/expensescounters/6"; > > this link. It is working. > > Now i create association between user and expensescounter to see the > expenses for authorize user. > > >>After creating association, when I click on "Add to count" button, I got > error > like: > > ActionController::ActionControllerError (Cannot redirect to nil!): > > app/controllers/line_items_controller.rb:54:in `block (2 levels) in > create' > > app/controllers/line_items_controller.rb:51:in `create' > > >> Code of line_items_controller.rb : > > def create > @expensescounter = current_expensescounter > quantity = Quantity.find(params[:quantity_id]) > @line_item = @expensescounter.add_quantity(quantity.id) > @line_item.quantity = quantity > > respond_to do |format| #line no. : 51 > if @line_item.save > format.html { redirect_to @line_item.expensescounter } #line no. : > 54 > . > . > . > . > . > end > > How can I solve this problem? > > Any help would be appreciated. > > You're going to need to figure out why @line_item.expensescounter is nil. Post the code here if you need help finding the problem.
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