竞赛

app/models/competition_mode_setting.rb

@@ -0,0 +1,3 @@
+class CompetitionModeSetting < ApplicationRecord
+  belongs_to :course
+end

db/migrate/20191015013924_add_new_column_to_competitions.rb

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+class AddNewColumnToCompetitions < ActiveRecord::Migration[5.2]
+  def change
+    add_column :competitions, :bonus, :integer, default: 0
+    add_column :competitions, :mode, :integer, default: 0
+  end
+end

db/migrate/20191015015723_create_competition_mode_settings.rb

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+class CreateCompetitionModeSettings < ActiveRecord::Migration[5.2]
+  def change
+    create_table :competition_mode_settings do |t|
+      t.references :course
+      t.datetime :start_time
+      t.datetime :end_time
+
+      t.timestamps
+    end
+  end
+end

spec/models/competition_mode_setting_spec.rb

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+require 'rails_helper'
+
+RSpec.describe CompetitionModeSetting, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end