init project

app/models/attendance.rb

@@ -0,0 +1,16 @@
+class Attendance < ApplicationRecord
+  belongs_to :user
+
+  default_scope { order(created_at: :desc) }
+
+  def next_gold
+    # 超过1天即没有连续的签到则又从10个金币开始累加
+    return 50 if Util.days_between(Time.zone.now, created_at) > 1
+
+    [[score.to_i, 50].max + 10, 100].min
+  end
+
+  def today?
+    Util.days_between(Time.current, created_at).zero?
+  end
+end