Messages to completions conversion

app/models/completion.rb

@@ -29,7 +29,17 @@ class Completion < ApplicationRecord
   belongs_to :contestant
   belongs_to :puzzle
 
-  validates :time_seconds, presence: true
-  validates_numericality_of :time_seconds
+  before_save :add_time_seconds
+
+  validates :display_time_from_start, presence: true, format: { with: /\A((\d\d|\d):\d\d|\d\d|\d):\d\d\z/ }
   validates :puzzle_id, uniqueness: { scope: :contestant }
+
+  def add_time_seconds
+    arr = display_time_from_start.split(":")
+    if arr.size == 3
+      self.time_seconds = arr[0].to_i * 3600 + arr[1].to_i * 60 + arr[2].to_i
+    elsif arr.size == 2
+      self.time_seconds = arr[0].to_i * 60 + arr[1].to_i
+    end
+  end
 end

app/models/message.rb

@@ -3,6 +3,8 @@
 # Table name: messages
 #
 #  id           :integer          not null, primary key
+#  author       :string
+#  display_time :string
 #  text         :string           not null
 #  time_seconds :integer          not null
 #  created_at   :datetime         not null
@@ -20,5 +22,6 @@
 class Message < ApplicationRecord
   belongs_to :contest
 
+  validates :author, presence: true
   validates :text, presence: true
 end