How do I correct this model association? - ruby-on-rails-3

Question

I've created an album model and a photo model and added it to an existing rails application. I've made the photos model belong to the album model and the album model belong to an existing profile model that belongs to a user model. I don't know if I've associated them wrong and why I'm getting an error.
It's worth noting that when I go to URL/albums then everything works as it should but when I go to URL/profiles/1 (the code below is pasted in the show.html.erb file in the views/profile/ folder) then I get the error below.
This is a simple problem that I just can't solve. The four model files are below:
Album.rb:
class Album < ActiveRecord::Base
belongs_to :profile
has_many :photos, :dependent => :destroy
accepts_nested_attributes_for :photos, :allow_destroy => true
end
Profile.rb:
class Profile < ActiveRecord::Base
belongs_to :user
has_many :albums
def self.get_location(profile)
location = []
location << profile.city unless profile.city.blank?
location << profile.state unless profile.state.blank?
location << profile.country unless profile.country.blank?
location << profile.postal_code unless profile.postal_code.blank?
location
end
def self.missing_fields(profile)
missing = []
if profile.first_name.blank?
missing << "first name"
end
if profile.last_name.blank?
missing << "last name"
end
if profile.job_title.blank?
missing << "job title"
end
missing
end
end
Photo.rb:
require 'paperclip'
class Photo < ActiveRecord::Base
belongs_to :album
has_attached_file :upload,
:url => "/images/:id/:style/:basename.:extension",
:path => ":rails_root/public/images/:id/:style/:basename.:extension",
:styles => {
:thumb => "75x75>",
:small => "200x200>"
}
#add in any validations you may want
end
User.rb:
class User < ActiveRecord::Base
include Gravtastic
gravtastic :size => 120
# associations
has_many :albums
has_many :photos, :through => :albums
has_many :authorizations, :dependent => :destroy
has_one :profile, :dependent => :destroy
has_many :resumes, :dependent => :destroy, :order => 'created_at DESC'
has_many :thoughts, :dependent => :destroy, :order => 'created_at DESC'
has_many :user_threads, :dependent => :destroy, :order => 'created_at ASC'
accepts_nested_attributes_for :profile
# virtual attributes
attr_accessor :first_name, :last_name
# validations
validates_presence_of :first_name
validates_presence_of :last_name
validates_length_of :username, :minimum => 4, :message => " is too short"
validates :email, :email => {:message => " is not valid"}
validates_uniqueness_of :email, :case_sensitive => false
validates_uniqueness_of :username, :case_sensitive => false
validates_length_of :password, :minimum => 4, :message => " is too short"
# authlogic
acts_as_authentic do |config|
config.crypto_provider = Authlogic::CryptoProviders::MD5
config.maintain_sessions = false
config.validate_email_field = false
config.validate_login_field = false
config.validate_password_field = false
config.login_field = :email
config.validate_login_field = false
end
def self.create_from_hash!(hash)
user = User.new(:username => Time.now.to_i, :email => '', :auth_provider => hash['provider'])
user.save(:validate => false)
if hash['provider'].downcase == 'twitter'
user.profile = Profile.create(:first_name => Twitter::Client.new.user(hash['user_info'] ['nickname'].to_s).name)
else
user.profile = Profile.create(:first_name => hash['user_info']['first_name'], :last_name => hash['user_info']['last_name'])
end
user
end
def deliver_password_reset_instructions!
reset_perishable_token!
UserMailer.deliver_password_reset_instructions(self)
end
def activate!
self.active = true
save(false)
end
def deliver_activation_instructions!
reset_perishable_token!
UserMailer.deliver_activation_instructions(self)
end
end
The profile controller has this snippet:
def show
#user = User.find_by_username(params[:id])
#profile = #user.profile
#location = Profile.get_location(#profile)
#resumes = #user.resumes
#albums = #user.albums
#photos = #user.photos
#thoughts = #user.thoughts
#shouts = UserThread.find_profile_shouts(#profile)
#shouters = UserThread.find_shouters(#shouts)
#user_thread = UserThread.new
end
The view has this:
<div id="profile_right_col">
<h2>Albums</h2>
<p>
<b>Name:</b>
<%= #albums %><br />
<% #albums.photos.each do |photo| %>
<h3><%= photo.title %></h3>
<%= image_tag photos.upload.url(:small) %>
<% end %>
</p>
<%= link_to 'Edit', edit_album_path(#albums) %> |
<%= link_to 'Back', albums_path %>
</div>
The Action Controller exception shows:
ActiveRecord::StatementInvalid in Profiles#show
Showing /Users/pawel/Ruby/Apps/cvf/app/views/profiles/show.html.erb where line #137 raised:
SQLite3::SQLException: no such column: albums.user_id: SELECT "albums".* FROM "albums" WHERE ("albums".user_id = 4)
Extracted source (around line #137):
<h2>Albums</h2>
<p>
<b>Name:</b>
<%= #albums %><br />
<% #albums.photos.each do |photo| %>
<h3><%= photo.title %></h3>

Answer 1

You dont have #album variable defined in your show action (you have #albums and the in the views you need to go through #albums array). So its value is nil and it doesn`t have method photos.

Answer 2

It worked after I added Paperclip::Railtie.insert to my application.rb.