post approvals: add index page + search options (fix #3579).

app/models/post_approval.rb

@@ -5,10 +5,6 @@ class PostApproval < ApplicationRecord
   validate :validate_approval
   after_create :approve_post
 
-  def self.prune!
-    where("created_at < ?", 1.month.ago).delete_all
-  end
-
   def validate_approval
     if post.is_status_locked?
       errors.add(:post, "is locked and cannot be approved")
@@ -33,4 +29,26 @@ class PostApproval < ApplicationRecord
     post.flags.each(&:resolve!)
     post.update(approver: user, is_flagged: false, is_pending: false, is_deleted: false)
   end
+
+  concerning :SearchMethods do
+    class_methods do
+      def post_tags_match(query)
+        PostQueryBuilder.new(query).build(self.joins(:post))
+      end
+
+      def search(params)
+        q = super
+        params[:user_id] = User.name_to_id(params[:user_name]) if params[:user_name]
+
+        if params[:post_tags_match].present?
+          q = q.post_tags_match(params[:post_tags_match])
+        end
+
+        q = q.attribute_matches(:user_id, params[:user_id])
+        q = q.attribute_matches(:post_id, params[:post_id])
+
+        q.apply_default_order(params)
+      end
+    end
+  end
 end