VRFS-1247 include Listen link in session emails

ruby/lib/jam_ruby/app/mailers/user_mailer.rb

@@ -154,11 +154,11 @@
         end
       end
 
-      def musician_session_join(email, msg)
+      def musician_session_join(email, msg, session_id)
         subject = "Someone you know is in a session on JamKazam"
         unique_args = {:type => "musician_session_join"}
-        
         @body = msg
+        @session_url = "#{APP_CONFIG.external_root_url}/sessions/#{session_id}"
         sendgrid_category "Notification"
         sendgrid_unique_args :type => unique_args[:type]
         mail(:bcc => email, :subject => subject) do |format|
@@ -167,11 +167,12 @@
         end
       end
 
-      def band_session_join(email, msg)
+      def band_session_join(email, msg, session_id)
         subject = "A band that you follow has joined a session"
         unique_args = {:type => "band_session_join"}
         
         @body = msg
+        @session_url = "#{APP_CONFIG.external_root_url}/sessions/#{session_id}"
         sendgrid_category "Notification"
         sendgrid_unique_args :type => unique_args[:type]
         mail(:bcc => email, :subject => subject) do |format|

ruby/lib/jam_ruby/app/views/jam_ruby/user_mailer/band_session_join.html.erb

@@ -1,3 +1,3 @@
 <% provide(:title, 'New Band Session') %>
 
-<p><%= @body %></p>
+<p><%= @body %>&nbsp;<a href="<%= @session_url %>">Listen in.</a></p>

ruby/lib/jam_ruby/app/views/jam_ruby/user_mailer/band_session_join.text.erb

@@ -1 +1 @@
-<%= @body %>
+<%= @body %> Listen at <%= @session_url %>.

ruby/lib/jam_ruby/app/views/jam_ruby/user_mailer/musician_session_join.html.erb

@@ -1,3 +1,3 @@
 <% provide(:title, 'Musician in Session') %>
 
-<p><%= @body %></p>
+<p><%= @body %>&nbsp;<a href="<%= @session_url %>">Listen in.</a></p>

ruby/lib/jam_ruby/app/views/jam_ruby/user_mailer/musician_session_join.text.erb

@@ -1 +1 @@
-<%= @body %>
+<%= @body %> Listen at <%= @session_url %>.

ruby/lib/jam_ruby/models/notification.rb

@@ -507,7 +507,7 @@ module JamRuby
           # send email notifications
           unless offline_ff.empty?
             begin
-              UserMailer.musician_session_join(offline_ff.map! {|f| f.email}, notification_msg).deliver if APP_CONFIG.send_join_session_email_notifications
+              UserMailer.musician_session_join(offline_ff.map! {|f| f.email}, notification_msg, music_session.id).deliver if APP_CONFIG.send_join_session_email_notifications
             rescue => e
               @@log.error("unable to send email to offline participants #{e}")
             end
@@ -552,7 +552,7 @@ module JamRuby
 
           # send email notifications
           unless offline_followers.empty?
-            UserMailer.band_session_join(offline_followers.map! {|f| f.email}, notification_msg).deliver
+            UserMailer.band_session_join(offline_followers.map! {|f| f.email}, notification_msg, music_session.id).deliver if APP_CONFIG.send_join_session_email_notifications
           end
         end
       end