feat: 🎸 Tweet モデルに投票期間内かどうかを判別するメソッドとスコープを追加した (#97)

app/models/tweet.rb

@@ -47,13 +47,20 @@ def self.not_by_gensosenkyo_sub
     where.not(user_id: target_user_ids)
   end
 
-  def self.valid_votes
+  def self.valid_term_votes
     begin_datetime = Time.zone.parse('2021-06-11 21:00:00')
     end_datetime = Time.zone.parse('2021-06-13 11:59:59')
 
     where(tweeted_at: begin_datetime..end_datetime)
   end
 
+  def valid_term_vote?
+    begin_datetime = Time.zone.parse('2021-06-11 21:00:00')
+    end_datetime = Time.zone.parse('2021-06-13 11:59:59')
+
+    tweeted_at >= begin_datetime && tweeted_at <= end_datetime
+  end
+
   def has_this_hashtag?(hashtag)
     hashtags.any? { |h| h.text == hashtag }
   end