adding plannedsession write to fit

rowers/models.py

@@ -482,7 +482,7 @@ class TeamRequest(models.Model):
 from rowers.utils import (
     workflowleftpanel,workflowmiddlepanel,
     defaultleft,defaultmiddle,landingpages,
-    steps_read_fit
+    steps_read_fit, steps_write_fit
     )
 
 from rowers.utils import geo_distance
@@ -2378,6 +2378,10 @@ class PlannedSession(models.Model):
                 steps = steps_read_fit(settings.MEDIA_ROOT+'/'+self.fitfile.name)
                 self.steps_json = json.dumps(steps)
 
+        if self.steps_json and not self.fitfile:
+            fitfile = steps_write_fit(settings.MEDIA_ROOT+'/session_'+str(self.id)+'.fit',json.loads(self.steps_json))
+            self.fitfile = fitfile
+
 
         super(PlannedSession,self).save(*args, **kwargs)