refactored search

app/models/post_appeal.rb

@@ -8,8 +8,29 @@ class PostAppeal < ActiveRecord::Base
   validate :validate_creator_is_not_limited
   before_validation :initialize_creator, :on => :create
   validates_uniqueness_of :creator_id, :scope => :post_id, :message => "have already appealed this post"
-  scope :for_user, lambda {|user_id| where(["creator_id = ?", user_id])}
-  scope :recent, lambda {where(["created_at >= ?", 1.day.ago])}
+  
+  module SearchMethods
+    def for_user(user_id)
+      where("creator_id = ?", user_id)
+    end
+    
+    def recent
+      where("created_at >= ?", 1.day.ago)
+    end
+    
+    def search(params)
+      q = scoped
+      return q if params.blank?
+      
+      if params[:post_id]
+        q = q.where("post_id = ?", params[:post_id].to_i)
+      end
+      
+      q
+    end
+  end
+  
+  extend SearchMethods
   
   def validate_creator_is_not_limited
     if appeal_count_for_creator >= Danbooru.config.max_appeals_per_day