I believe this has resolved the dependent destruction and we can close issue #18

app/controllers/admin_controller.rb

@@ -34,7 +34,9 @@ class AdminController < ApplicationController
   def delete_user
     user = User.find_by_user_id(params[:admin_id])
     if user && !(current_user.user_id == user.user_id)
-      user.delete
+      # Call destroy here so that all association records w/ user_id are destroyed as well
+      # Example user.retirement records would be destroyed
+      user.destroy
       message = true
     end
     respond_to do |format|

app/models/paid_time_off.rb

@@ -1,7 +1,7 @@
 class PaidTimeOff < ActiveRecord::Base
   attr_accessible :pto_earned, :pto_taken, :sick_days_earned, :sick_days_taken
   belongs_to :user
-  has_many :schedule, :foreign_key => :user_id, :primary_key => :user_id
+  has_many :schedule, :foreign_key => :user_id, :primary_key => :user_id, :dependent => :destroy
 
   def sick_days_remaining
     self.sick_days_earned - self.sick_days_taken

app/models/user.rb

@@ -10,10 +10,10 @@ class User < ActiveRecord::Base
   validates_format_of :email, :with => /.+@.+\..+/i
   attr_accessor :skip_user_id_assign
   before_save :assign_user_id, :on => :create
-  has_one :retirement, :foreign_key => :user_id, :primary_key => :user_id
-  has_one :paid_time_off, :foreign_key => :user_id, :primary_key => :user_id
-  has_one :work_info, :foreign_key => :user_id, :primary_key => :user_id
-  has_many :performance, :foreign_key => :user_id, :primary_key => :user_id
+  has_one :retirement, :foreign_key => :user_id, :primary_key => :user_id, :dependent => :destroy
+  has_one :paid_time_off, :foreign_key => :user_id, :primary_key => :user_id, :dependent => :destroy
+  has_one :work_info, :foreign_key => :user_id, :primary_key => :user_id, :dependent => :destroy
+  has_many :performance, :foreign_key => :user_id, :primary_key => :user_id, :dependent => :destroy
   
   
   def full_name