How to add links to pages dynamically in Rails - ruby-on-rails

Question

My pages controller has this code:
class PagesController < ApplicationController
def index
#pages = Page.all
end
def new
#page = Page.new
end
def edit
#page = Page.find(params[:id])
end
def create
#page = Page.new(page_params)
#page.save
redirect_to #page
end
def update
#page = Page.find(params[:id])
#page.update(page_params)
redirect_to #page
end
def show
#page = Page.find(params[:id])
end
def destroy
#page = Page.find(params[:id])
#page.destroy
redirect_to pages_path
end
private
def page_params
params.require(:page).permit(:title,:description)
end
end
And in my navbar I have this code:
<% #pages.each do |page| %>
<li?<%= link_to 'page.title', page_path(page)%></li>
<% end %>
The code should generate the titles of each page created, however I get the following error when I run the page:
undefined method `each' for nil:NilClass
I thought I had eliminated this issue by entering the code inside the new function in PagesController. This pages controller is just for additional pages. The navbar also contains links to static pages, so there should always be some value in the navbar.
Has anybody any advice?

Answer 1

Try this:
Add this in your application_controller.rb
#pages = Page.all
and in your navbar
<% #pages.each do |page| %>
<li><%= link_to "#{page.title}", page_path(page)%></li>
<% end %>

Answer 2

It sounds like you don't have any pages in your Page table. Ensure you have populated this table with some pages.
You can also wrap the code in an unless clause to check if #pages is nil.
For example:
<% unless #pages.nil? %>
<% #pages.each do |page| %>
<li?<%= link_to 'page.title', page_path(page)%></li>
<% end %>
<% end %>