Implement projected time

app/models/contestant.rb

@@ -2,14 +2,15 @@
 #
 # Table name: contestants
 #
-#  id           :integer          not null, primary key
-#  display_time :string
-#  email        :string
-#  name         :string
-#  time_seconds :integer
-#  created_at   :datetime         not null
-#  updated_at   :datetime         not null
-#  contest_id   :integer          not null
+#  id             :integer          not null, primary key
+#  display_time   :string
+#  email          :string
+#  name           :string
+#  projected_time :string
+#  time_seconds   :integer
+#  created_at     :datetime         not null
+#  updated_at     :datetime         not null
+#  contest_id     :integer          not null
 #
 # Indexes
 #
@@ -22,7 +23,7 @@
 class Contestant < ApplicationRecord
   belongs_to :contest
   has_many :completions, dependent: :destroy
-  has_one :offline
+  has_one :offline, dependent: :destroy
   has_and_belongs_to_many :categories
 
   before_validation :initialize_time_seconds_if_empty