join working but needs improvement (form with title)

rowers/dataprep.py

@@ -158,6 +158,69 @@ def filter_df(datadf, fieldname, value, largerthan=True):
 
     return datadf
 
+# joins workouts
+def join_workouts(r,ids,title='Joined Workout',
+                  parent=None,
+                  setprivate=False,
+                  forceunit='lbs'):
+
+    message = None
+
+    summary = ''
+    if parent:
+        oarlength = parent.oarlength
+        inboard = parent.inboard
+        workouttype = parent.workouttype
+        notes = parent.notes
+        summary = parent.summary
+        if parent.privacy == 'hidden':
+            makeprivate = True
+        else:
+            makeprivate = False
+
+        startdatetime = parent.startdatetime 
+    else:
+        oarlength = 2.89
+        inboard = 0.88
+        workouttype = 'rower'
+        notes = ''
+        summary = ''
+        makeprivate = False
+        startdatetime = timezone.now()
+
+    if setprivate:
+        makeprivate = True
+
+    # reorder in chronological order
+    ws = Workout.objects.filter(id__in=ids).order_by("date", "starttime")
+    files = [w.csvfilename for w in ws]
+
+    row = rdata(files[0])
+
+    files = files[1:]
+
+    while len(files):
+        row2 = rdata(files[0])
+        if row2 != 0:
+            row = row+row2
+        files = files[1:]
+
+    timestr = strftime("%Y%m%d-%H%M%S")
+    csvfilename = 'media/df_' + timestr + '.csv'
+
+    row.write_csv(csvfilename,gzip=True)
+    id, message = save_workout_database(csvfilename, r,
+                                        workouttype=workouttype,
+                                        title=title,
+                                        notes=notes,
+                                        oarlength=oarlength,
+                                        inboard=inboard,
+                                        makeprivate=makeprivate,
+                                        dosmooth=False,
+                                        consistencychecks=False)
+
+    return (id, message)
+
 
 def df_resample(datadf):
     # time stamps must be in seconds