Add reminder model

app/models/hydrant.rb

@@ -1,6 +1,7 @@
 class Hydrant < ActiveRecord::Base
   validates_presence_of :lat, :lng
   belongs_to :user
+  has_many :reminders
 
   def self.find_closest(lat, lng, limit=50)
     query = <<-SQL

app/models/reminder.rb

@@ -0,0 +1,6 @@
+class Reminder < ActiveRecord::Base
+  validates_presence_of :from_user, :to_user, :hydrant
+  belongs_to :from_user, :class_name => "User"
+  belongs_to :to_user, :class_name => "User"
+  belongs_to :hydrant
+end

app/models/user.rb

@@ -3,4 +3,6 @@ class User < ActiveRecord::Base
   attr_accessible :email, :name, :organization, :voice_number, :sms_number, :password, :password_confirmation, :remember_me
   validates_presence_of :name
   has_many :hydrants
+  has_many :reminders_to, :class_name => "Reminder", :foreign_key => "to_user_id"
+  has_many :reminders_from, :class_name => "Reminder", :foreign_key => "from_user_id"
 end

db/migrate/00000000000001_devise_create_users.rb

@@ -1,5 +1,5 @@
 class DeviseCreateUsers < ActiveRecord::Migration
-  def self.up
+  def change
     create_table :users do |t|
       t.timestamps
       t.string :name, :null => false
@@ -16,8 +16,4 @@ class DeviseCreateUsers < ActiveRecord::Migration
     add_index :users, :email, :unique => true
     add_index :users, :reset_password_token, :unique => true
   end
-
-  def self.down
-    drop_table :users
-  end
 end

db/migrate/00000000000002_create_hydrants.rb

@@ -1,5 +1,5 @@
 class CreateHydrants < ActiveRecord::Migration
-  def self.up
+  def change
     create_table :hydrants do |t|
       t.timestamps
       t.string :name
@@ -8,10 +8,7 @@ class CreateHydrants < ActiveRecord::Migration
       t.integer :city_id
       t.integer :user_id
     end
+
     add_index :hydrants, :city_id, :unique => true
   end
-
-  def self.down
-    drop_table :hydrants
-  end
 end

db/migrate/00000000000003_create_reminders.rb

@@ -0,0 +1,14 @@
+class CreateReminders < ActiveRecord::Migration
+  def change
+    create_table :reminders do |t|
+      t.timestamps
+      t.integer :from_user_id, :null => false
+      t.integer :to_user_id, :null => false
+      t.integer :hydrant_id, :null => false
+    end
+
+    add_index :reminders, :from_user_id
+    add_index :reminders, :to_user_id
+    add_index :reminders, :hydrant_id
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20110223180521) do
+ActiveRecord::Schema.define(:version => 3) do
 
   create_table "hydrants", :force => true do |t|
     t.datetime "created_at"
@@ -24,6 +24,18 @@ ActiveRecord::Schema.define(:version => 20110223180521) do
 
   add_index "hydrants", ["city_id"], :name => "index_hydrants_on_city_id", :unique => true
 
+  create_table "reminders", :force => true do |t|
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "from_user_id", :null => false
+    t.integer  "to_user_id",   :null => false
+    t.integer  "hydrant_id",   :null => false
+  end
+
+  add_index "reminders", ["from_user_id"], :name => "index_reminders_on_from_user_id"
+  add_index "reminders", ["hydrant_id"], :name => "index_reminders_on_hydrant_id"
+  add_index "reminders", ["to_user_id"], :name => "index_reminders_on_to_user_id"
+
   create_table "users", :force => true do |t|
     t.datetime "created_at"
     t.datetime "updated_at"

test/fixtures/reminders.yml

@@ -0,0 +1,5 @@
+---
+reminder_1:
+  from_user: erik
+  to_user: dan
+  hydrant: hydrant_1

test/fixtures/users.yml

@@ -6,3 +6,12 @@ erik:
   voice_number: 1234567890
   sms_number: 1234567890
   encrypted_password: "$2a$10$KF/JMZ494ZLhWLgHZeBTf.cSL4l0Wjij4gIZP7BzkueAC1p4nW0ma"
+
+dan:
+  name: Dan Melton
+  organization: Code for America
+  email: dan@example.com
+  voice_number: 1234567890
+  sms_number: 1234567890
+  encrypted_password: "$2a$10$KF/JMZ494ZLhWLgHZeBTf.cSL4l0Wjij4gIZP7BzkueAC1p4nW0ma"
+