add year to YAML data

event.py

@@ -90,6 +90,10 @@ class Event( Index ):
     def set_slug( self, slug ):
         self.fields[ '$slug' ] = slug
 
+    def set_year( self, year ):
+        if not self.fields.get( 'year' ):
+            self.fields[ 'year' ] = year
+
     def set_published( self, published ):
         if not self.fields.get( '$date' ):
             self.fields[ '$date' ] = {}

fih.py

@@ -85,6 +85,7 @@ def mattermost_incident_command( command, args, channel_id, raw_incident_number,
         ev.set_title( channel[ 'purpose' ] )
         ev.set_slug( raw_incident_number )
         ev.set_published( datetime.datetime.utcnow().strftime( "%Y-%m-%d %H:%M" ) )
+        ev.set_year( datetime.datetime.utcnow().strftime( "%Y" ) )
         written = ev.write()
 
         app.mm.posts.create_post( options = { 'channel_id': private_channel_id,