From 7bdca213fa9c158400e75d14dc2ba3caf3d22d38 Mon Sep 17 00:00:00 2001
From: Jonathan Kolyer <jonathan@jamkazam.com>
Date: Tue, 23 Jul 2013 15:20:39 -0500
Subject: [PATCH] vrfs-310:  added removed_music_session method, and
 after_destroy callback

---
 lib/jam_ruby/models/music_session.rb         |  4 ++++
 lib/jam_ruby/models/music_session_history.rb | 12 +++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/jam_ruby/models/music_session.rb b/lib/jam_ruby/models/music_session.rb
index 31dbe5a53..828564905 100644
--- a/lib/jam_ruby/models/music_session.rb
+++ b/lib/jam_ruby/models/music_session.rb
@@ -23,6 +23,10 @@ module JamRuby
 
     after_save :require_at_least_one_genre, :limit_max_genres
 
+    after_destroy do |obj|
+      JamRuby::MusicSessionHistory.removed_music_session(obj.user_id, obj.id)
+    end
+
     validates :description, :presence => true
     validates :fan_chat, :inclusion => {:in => [true, false]}
     validates :fan_access, :inclusion => {:in => [true, false]}
diff --git a/lib/jam_ruby/models/music_session_history.rb b/lib/jam_ruby/models/music_session_history.rb
index 7c83e9e4f..65e319984 100644
--- a/lib/jam_ruby/models/music_session_history.rb
+++ b/lib/jam_ruby/models/music_session_history.rb
@@ -56,5 +56,15 @@ module JamRuby
       session_history.genres = music_session.genres.map { |g| g.id }.join '|'
       session_history.save!
     end
+
+    def self.removed_music_session(user_id, session_id)
+      hist = self
+        .where(:user_id => user_id)
+        .where(:music_session_id => session_id)
+        .limit(1)
+        .first
+      hist.update_attribute(:session_removed_at, Time.now) if hist
+    end
+    
   end
-end
\ No newline at end of file
+end