FIX: Use a logging table for daily likes given. Use it for badges.

app/models/given_daily_like.rb

@@ -0,0 +1,34 @@
+class GivenDailyLike < ActiveRecord::Base
+  belongs_to :user
+
+  def self.find_for(user_id, date)
+    where(user_id: user_id, given_date: date)
+  end
+
+  def self.increment_for(user_id)
+    return unless user_id
+    given_date = Date.today
+
+    # upsert would be nice here
+    rows = find_for(user_id, given_date).update_all('likes_given = likes_given + 1')
+
+    if rows == 0
+      create(user_id: user_id, given_date: given_date, likes_given: 1)
+    else
+      find_for(user_id, given_date)
+              .where('limit_reached = false AND likes_given >= :limit', limit: SiteSetting.max_likes_per_day)
+              .update_all(limit_reached: true)
+    end
+  end
+
+  def self.decrement_for(user_id)
+    return unless user_id
+
+    given_date = Date.today
+
+    find_for(user_id, given_date).update_all('likes_given = likes_given - 1')
+    find_for(user_id, given_date)
+            .where('limit_reached = true AND likes_given < :limit', limit: SiteSetting.max_likes_per_day)
+            .update_all(limit_reached: false)
+  end
+end