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nicolasnahimana
6,763 PointsI need help to figure out how to resolve this error.
1) Adding todo items is successful with valid content
Failure/Error: click_link "New Todo Item"
ActionView::Template::Error:
First argument in form cannot contain nil or be empty
# ./app/views/todo_items/new.html.erb:1:in _app_views_todo_items_new_html_erb__984293410__579391758'
# ./spec/features/todo_items/create_spec.rb:16:inblock (2 levels) in <top (required)>'
5 Answers
Kevin Lozandier
Courses Plus Student 53,747 PointsHi, Nicolas Nahimana
Review the code inside your controller to make sure you're defining and referring to the same variables inside your views.
Please provide your code wrapped around 3 grave characters before and after the code snippet to allow me and the rest of the Treehouse community be in a better position to help you more.
nicolasnahimana
6,763 PointsHi Kevin, thanks for the assistance. I am going to review the code and I will inform you of my progress.
Gameli Ladzekpo
5,324 PointsHey Kevin, I'm finding the same error
This is my controller
'''
class TodoItemsController < ApplicationController def index @todo_list = TodoList.find(params[:todo_list_id]) end
def new @todo_list = TodoList.find(params[:todo_list_id]) @todo_list = @todo_list.todo_items.new end
def create @todo_list = TodoList.find(params[:todo_list_id]) @todo_list = @todo_list.todo_items.new(todo_item_params) if @todo_item.save flash[:success] = "Added todo list item." redirect_to todo_list_todo_items_path else flash[:error] = "There was a problem adding that todo list item" render action: :new end
end
private def todo_item_params params[:todo_item].permit(:content) end
end (''')
This is my view
'''ruby <%= form_for [@todo_list, @todo_item] do |form| %> <%= form.label :content %> <%= form.text_field :content %>
<%= form.submit "Save" %>
<% end %>
'''
This is my spec
'''ruby require 'spec_helper'
describe "Adding todo items" do let!(:todo_list) {TodoList.create(title:"Grocery List", description:"Groceries")}
def visit_todo_list(list)
visit"/todo_lists"
within "#todo_list_#{list.id}" do
click_link "List Items"
end
end
it "is successful with valid content" do
visit_todo_list(todo_list)
click_link "New Todo Item"
fill_in "Content", with: "Milk"
click_button "Save"
expect(page).to have_content("Added todo list item.")
within("ul.todo_items") do
expect(page).to have_content("Milk")
end
end
end
'''
Would really appreciate a point in the right direction.
Gameli Ladzekpo
5,324 PointsOkay - solved it my issue, Kevin you were right. i didn't actually declare a variable called @todo_item, i declared @todo_list twice by accident.
Kevin Lozandier
Courses Plus Student 53,747 PointsGameli Ladzekpo: Okay, awesome; good luck with the rest of the course!