app port from old version

app/controllers/application_controller.rb

@@ -2,4 +2,6 @@ class ApplicationController < ActionController::Base
   # Prevent CSRF attacks by raising an exception.
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
+
+  respond_to :html, :json
 end

app/controllers/children_controller.rb

@@ -1,2 +1,6 @@
 class ChildrenController < ApplicationController
+  def index
+    @children = Child.all.order(:last_name, :first_name)
+    respond_with @children
+  end
 end

app/controllers/staff_controller.rb

@@ -1,2 +1,6 @@
 class StaffController < ApplicationController
+  def index
+    @staff = Person.staff
+    respond_with @staff
+  end
 end

app/controllers/users_controller.rb

@@ -1,2 +1,6 @@
 class UsersController < ApplicationController
+  def index
+    @users = Person.admins
+    respond_with @users
+  end
 end

app/models/child.rb

@@ -0,0 +1,11 @@
+class Child < ActiveRecord::Base
+  has_many :parenthoods
+  has_many :parents, through: :parenthoods, source: :person
+
+  validates :first_name, presence: true
+  validates :last_name, presence: true
+
+  def name
+    "#{first_name} #{last_name}"
+  end
+end

app/models/parenthood.rb

@@ -0,0 +1,4 @@
+class Parenthood < ActiveRecord::Base
+  belongs_to :person
+  belongs_to :child
+end

app/models/person.rb

@@ -0,0 +1,25 @@
+class Person < ActiveRecord::Base
+  has_many :parenthoods
+  has_many :children, through: :parenthoods
+
+  validates :first_name, presence: true
+  validates :last_name, presence: true
+
+  scope :with_name, lambda { |name|
+    where("concat(first_name, ' ', last_name) RLIKE ?", name)
+  }
+
+  scope :just_parents, lambda {
+    joins(:children)
+      .order(:first_name)
+      .uniq
+  }
+
+  scope :staff, -> { where(staff: true) }
+
+  scope :admins, -> { where(admin: true) }
+
+  def name
+    "#{first_name} #{last_name}"
+  end
+end

app/views/children/index.haml

@@ -0,0 +1,8 @@
+%h1 Children
+
+- @children.each do |child|
+  %ul
+    %li= child.name
+    %ul
+      - child.parents.each do |parent|
+        %li #{parent.name}: #{number_to_phone parent.phone}

app/views/parents/index.haml

@@ -0,0 +1,11 @@
+%h1 Parents
+
+- @parents.each do |parent|
+  %ul
+    %li= parent.name
+    %li= number_to_phone parent.phone
+    %li= mail_to parent.email
+    %li Children:
+    %ul
+      - parent.children.each do |child|
+        %li= child.name

app/views/staff/index.haml

@@ -0,0 +1,4 @@
+%h1 Staff
+%ul
+  - @staff.each do |staff|
+    %li= staff.name

app/views/users/index.haml

@@ -0,0 +1,5 @@
+%h1 Users
+
+%ul
+  - @users.each do |user|
+    %li= user.name