add combined flag+appeal listing for posts #262

app/models/post_event.rb

@@ -0,0 +1,44 @@
+class PostEvent
+  class Instance
+    attr_reader :creator_id, :reason, :is_resolved, :created_at, :type
+
+    def initialize(row)
+      @creator_id = row["creator_id"].to_i
+      @reason = row["reason"]
+      @is_resolved = (row["is_resolved"] == "t")
+      @created_at = row["created_at"].to_time
+      @type = row["type"]
+    end
+
+    def creator
+      User.find(creator_id)
+    end
+
+    def type_name
+      if appeal?
+        "appeal"
+      else
+        "flag"
+      end
+    end
+
+    def appeal?
+      type == "a"
+    end
+
+    def flag?
+      type == "f"
+    end
+  end
+
+  QUERY = <<-EOS
+    (SELECT post_flags.creator_id, post_flags.reason, post_flags.is_resolved, post_flags.created_at, 'f' as type FROM post_flags WHERE post_flags.post_id = ?)
+    UNION
+    (SELECT post_appeals.creator_id, post_appeals.reason, 't' AS is_resolved, post_appeals.created_at, 'a' as type FROM post_appeals WHERE post_appeals.post_id = ?)
+    ORDER BY created_at
+  EOS
+
+  def self.find_for_post(post_id)
+    ActiveRecord::Base.select_all_sql(QUERY, post_id, post_id).map {|x| Instance.new(x)}
+  end
+end