clean up first day user definition and object model

app/models/post.rb

@@ -88,7 +88,7 @@ class Post < ActiveRecord::Base
   end
 
   def limit_posts_per_day
-    if user.created_at > 1.day.ago && post_number > 1
+    if user.first_day_user? && post_number > 1
       RateLimiter.new(user, "first-day-replies-per-day", SiteSetting.max_replies_in_first_day, 1.day.to_i)
     end
   end

app/models/topic.rb

@@ -250,7 +250,7 @@ class Topic < ActiveRecord::Base
   # Additional rate limits on topics: per day and private messages per day
   def limit_topics_per_day
     apply_per_day_rate_limit_for("topics", :max_topics_per_day)
-    limit_first_day_topics_per_day if user.added_a_day_ago?
+    limit_first_day_topics_per_day if user.first_day_user?
   end
 
   def limit_private_messages_per_day

app/models/user.rb

@@ -311,6 +311,12 @@ class User < ActiveRecord::Base
     self.password_hash == hash_password(password, salt)
   end
 
+  def first_day_user?
+    !staff? &&
+    trust_level < TrustLevel[2] &&
+    created_at >= 24.hours.ago
+  end
+
   def new_user?
     (created_at >= 24.hours.ago || trust_level == TrustLevel[0]) &&
       trust_level < TrustLevel[2] &&
@@ -562,10 +568,6 @@ class User < ActiveRecord::Base
     uploaded_avatar.present?
   end
 
-  def added_a_day_ago?
-    created_at > 1.day.ago
-  end
-
   def generate_api_key(created_by)
     if api_key.present?
       api_key.regenerate!(created_by)

spec/models/user_spec.rb

@@ -722,21 +722,17 @@ describe User do
 
   end
 
-  describe "#added_a_day_ago?" do
-    context "when user is more than a day old" do
-      subject(:user) { Fabricate(:user, created_at: Date.today - 2.days) }
+  describe "#first_day_user?" do
 
-      it "returns false" do
-        expect(user).to_not be_added_a_day_ago
-      end
+    def test_user?(opts={})
+      Fabricate.build(:user, {created_at: Time.now}.merge(opts)).first_day_user?
     end
 
-    context "is less than a day old" do
-      subject(:user) { Fabricate(:user) }
-
-      it "returns true" do
-        expect(user).to be_added_a_day_ago
-      end
+    it "works" do
+      expect(test_user?).to eq(true)
+      expect(test_user?(moderator: true)).to eq(false)
+      expect(test_user?(trust_level: TrustLevel[2])).to eq(false)
+      expect(test_user?(created_at: 2.days.ago)).to eq(false)
     end
   end