Attributes not showing on users#show page - ruby-on-rails

Question

users_controller.rb
class ProfilesController < ApplicationController
before_filter :authenticate_user!
def show
#user = User.find(params[:id]) || User.find(current_user.id)
#questions_for_about = #user.questions.for_about.order('id asc')
#questions_for_personality = #user.questions.for_personality.order('id asc')
end
end
user#show.html.erb
<div class="element">
Ethinicity:
<%= #user.ethnicity.present? ? #user.ethnicity.name : "" %>
</div>
<div class="element">
Education:
<span class="select_for_education">
<%= #user.education.present? ? #user.education.name : "" %>
</div>
The user.education.name is just showing the following - Education:
Without showing the users Education in which was chosen on his personal profile using the following select:
<div class="element">
Ethinicity:
<%= best_in_place current_user, :ethnicity_id, :type => :select, collection: Ethnicity.all.map{|e| [e.id, e.name]}, :inner_class => 'education-edit', nil: 'Select Ethnicity' %>
</div>
<div class="element">
Education:
<span class="select_for_education">
<%= best_in_place current_user, :education_id, :type => :select, collection: Education.all.map{|e| [e.id, e.name]}, :inner_class => 'education-edit', nil: 'Select Education' %>
</div>
What am I doing wrong? And how can I get the users education that DOES display on his/her own profile to display in the show page?
Thanks in advanced!
User.rb
class User < ActiveRecord::Base
include PgSearch
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable, :omniauthable,
:omniauth_providers => [:facebook, :twitter, :linkedin]
attr_accessible :email, :password, :password_confirmation, :zip, :gender, :remember_me, :first_name, :last_name,
:birthday, :current_password, :occupation, :address, :interests, :aboutme, :profile_image,
:photos_attributes, :age, :education_id, :ethnicity_id, :blurb
has_many :authorizations, :dependent => :destroy
has_many :comments
has_many :events
has_many :photos, as: :attachable
has_many :questions
has_many :sent_messages, class_name: 'Message', foreign_key: :sender_id
has_many :received_messages, class_name: 'Message', foreign_key: :receiver_id
has_one :ethnicity
has_one :education
end
ethnicity.rb
class Ethinicity < ActiveRecord::Base
attr_accessible :name
has_many :users
end
education.rb
class Education < ActiveRecord::Base
attr_accessible :name
has_many :users
end

Answer 1

You're missing belongs_to association for has_many and has_one relation. The belongs_to association definition needs to be defined in the model whose table has the foreign key.
Given your models, although the other way around is imaginable, here is what I think the associations should look like:
# User Model
class User < ActiveRecord::Base
...
belongs_to :ethnicity
belongs_to :education
end
# Ethnicity Model
class Ethinicity < ActiveRecord::Base
attr_accessible :name
has_many :users
end
# Education Model
class Education < ActiveRecord::Base
attr_accessible :name
has_many :users
end