Numerous schema changes, bug fixes.

app/models/device.rb

@@ -4,8 +4,8 @@ class Device < ActiveRecord::Base
 
   has_many :users
   has_many :schedules, dependent: :destroy
-  has_many :sequences
-  has_many :regimens
+  has_many :sequences, dependent: :destroy
+  has_many :regimens, dependent: :destroy
   has_many :plants, dependent: :destroy
   has_one  :planting_area
 

app/models/regimen.rb

@@ -5,6 +5,5 @@ class Regimen < ActiveRecord::Base
   self.table_name = "regimens"
 
   has_many   :regimen_items
-  belongs_to :device, dependent: :destroy
-  # validates :email, uniqueness: true
+  belongs_to :device
 end

db/migrate/20160905172003_make_regimen_item_offset_bigger.rb

@@ -0,0 +1,5 @@
+class MakeRegimenItemOffsetBigger < ActiveRecord::Migration
+  def change
+    change_column :regimen_items, :time_offset, :integer, limit: 8
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160905151345) do
+ActiveRecord::Schema.define(version: 20160905172003) do
 
   create_table "devices", force: :cascade do |t|
     t.integer "planting_area_id"
@@ -38,7 +38,7 @@ ActiveRecord::Schema.define(version: 20160905151345) do
   end
 
   create_table "regimen_items", force: :cascade do |t|
-    t.integer "time_offset"
+    t.integer "time_offset", limit: 8
     t.integer "schedule_id"
     t.integer "regimen_id"
     t.integer "sequence_id"