Undefined method only when not signed in - ruby-on-rails

Question

I'm building a blog that includes tiered admin permissions. When I'm signed in using our seeded admin account I can see the index just fine. When I go to the page not signed in, something that should be filtered by the before_action I get an error saying undefined method `admin=' for nil:NilClass in my index view.
When I'm not signed in, current_user should be nil and the if statement in the view should resolve then as false. Code snippets for reference are below.
Here's the view:
<div id="blog">
<%= render 'blogs/blog_header' %>
<div class="messages">
<%= render 'layouts/flash_messages' %>
</div>
<%= will_paginate #bloggers %>
<% #bloggers.each do |blogger| %>
<div class="post_wrapper">
<h2 class="title"><%= blogger.name %></h2>
<p class="date_and_author" style="display:inline"><%= blogger.email %></p>
<% if current_blogger.admin = 1 %>
<p class="date_and_author" style="display:inline">||</p>
<button class="button" style="display:inline"><%= link_to "delete", blogger, method: :delete,
data: { confirm: "You sure?" } %></button>
<% end %>
</div>
<% end %>
<%= will_paginate %>
The controller:
class BloggersController < ApplicationController
before_action :signed_in_blogger, only: [:show, :edit, :update, :destroy]
# GET /bloggers
# GET /bloggers.json
def index
#bloggers = Blogger.paginate(page: params[:page], per_page: 20)
end
# GET /bloggers/1
# GET /bloggers/1.json
def show
#blogger = Blogger.find(params[:id])
end
# GET /bloggers/new
def new
#blogger = Blogger.new
end
# GET /bloggers/1/edit
def edit
end
# POST /bloggers
# POST /bloggers.json
def create
#blogger = Blogger.new(blogger_params)
if #blogger.save
blog_sign_in #Blogger
flash.now[:success] = "New account successfully created."
redirect_to "/blogs"
else
render 'new'
end
end
# PATCH/PUT /bloggers/1
# PATCH/PUT /bloggers/1.json
def update
respond_to do |format|
if #blogger.update(blogger_params)
format.html { redirect_to #blogger, notice: 'User was successfully updated.' }
format.json { render :show, status: :ok, location: #blogger }
else
format.html { render :edit }
format.json { render json: #blogger.errors, status: :unprocessable_entity }
end
end
end
# DELETE /bloggers/1
# DELETE /bloggers/1.json
def destroy
Blogger.find(params[:id]).destroy
respond_to do |format|
format.html { redirect_to bloggers_url, notice: 'User was successfully destroyed.' }
format.json { head :no_content }
end
end
private
def blogger_params
params.require(:blogger).permit(:name, :email, :password, :admin, :password_confirmation)
end
# Confirms a signed-in user
def signed_in_blogger
unless blog_signed_in?
flash[:error] = "Please sign in."
redirect_to blog_signin_path
end
end
end
And the helper:
# Logs in the given blogger
def blog_sign_in(blogger)
session[:blogger_id] = blogger.id
end
# Returns the current logged-in blogger (if any)
def current_blogger
#current_blogger ||= Blogger.find_by(id: session[:blogger_id])
end
# Returns true if the blogger is logged in, false otherwise.
def blog_signed_in?
!current_blogger.nil?
end
def blog_sign_out
session[:blogger_id] = nil
#current_blogger = nil
end
Could this be somewhat related to a separate error in which when trying to create a new blogger, after hitting create, I get "undefined method id for nil:Class?" Any help would be greatly appreciated.
Pasting blogger model per request:
class Blogger < ActiveRecord::Base
attr_accessible :name, :email, :password, :password_confirmation, :admin, :remember_token
has_secure_password
before_save { self.email = email.downcase }
before_create :create_remember_token
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+#[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: true
validates :password, length: { minimum: 5 }
validates :password_confirmation, presence: true
def Blogger.new_remember_token
SecureRandom.urlsafe_base64
end
def Blogger.digest(token)
Digest::SHA1.hexdigest(token.to_s)
end
private
def create_remember_token
self.remember_token = Blogger.digest(Blogger.new_remember_token)
end
end

Answer 1

If you're not signed in and current_blogger is nil as you say, admin won't be an available method. To avoid this error, change your if statement in the view to something like this.
<% if current_blogger && current_blogger.admin == 1 %>
You could also use the try method, which will also work
<% if current_blogger.try(:admin) == 1 %>