/post_{flags,appeals}: allow searching by tags.

app/models/post_appeal.rb

@@ -16,6 +16,10 @@ class PostAppeal < ActiveRecord::Base
       where("reason ILIKE ? ESCAPE E'\\\\'", query.to_escaped_for_sql_like)
     end
 
+    def post_tags_match(query)
+      PostQueryBuilder.new(query).build(self.joins(:post))
+    end
+
     def resolved
       joins(:post).where("posts.is_deleted = false and posts.is_flagged = false")
     end
@@ -56,6 +60,10 @@ class PostAppeal < ActiveRecord::Base
         q = q.where("post_id = ?", params[:post_id].to_i)
       end
 
+      if params[:post_tags_match].present?
+        q = q.post_tags_match(params[:post_tags_match])
+      end
+
       if params[:is_resolved] == "true"
         q = q.resolved
       elsif params[:is_resolved] == "false"

app/models/post_flag.rb

@@ -24,6 +24,10 @@ class PostFlag < ActiveRecord::Base
       where("reason ILIKE ? ESCAPE E'\\\\'", query.to_escaped_for_sql_like)
     end
 
+    def post_tags_match(query)
+      PostQueryBuilder.new(query).build(self.joins(:post))
+    end
+
     def resolved
       where("is_resolved = ?", true)
     end
@@ -64,6 +68,10 @@ class PostFlag < ActiveRecord::Base
         q = q.where("post_id = ?", params[:post_id].to_i)
       end
 
+      if params[:post_tags_match].present?
+        q = q.post_tags_match(params[:post_tags_match])
+      end
+
       if params[:is_resolved] == "true"
         q = q.resolved
       elsif params[:is_resolved] == "false"