Offline CP calculations for OTW

A new table in the database with precalculated CP values. The data
are updated through RQ/Celery asynchronous functions

rowers/views.py

@@ -98,7 +98,8 @@ from rowers.rows import handle_uploaded_file
 from rowers.tasks import handle_makeplot,handle_otwsetpower,handle_sendemailtcx,handle_sendemailcsv
 from rowers.tasks import (
     handle_sendemail_unrecognized,handle_sendemailnewcomment,
-    handle_sendemailnewresponse, handle_updatedps
+    handle_sendemailnewresponse, handle_updatedps,
+    handle_updatecp
     )
 
 from scipy.signal import savgol_filter
@@ -2977,6 +2978,10 @@ def workout_update_cp_view(request,id=0):
     row.rankingpiece = True
     row.save()
 
+    r = getrower(request.user)
+
+    dataprep.runcpupdate(r)
+    
     url = reverse(otwrankings_view)
 
     return HttpResponseRedirect(url)
@@ -3089,39 +3094,12 @@ def otwrankings_view(request,theuser=0,
 					  startdatetime__lte=enddate)
 
 
-    # get all power data from database (plus workoutid)
-    theids = [int(w.id) for w in theworkouts]
-    columns = ['power','workoutid','time']
-    df = dataprep.getsmallrowdata_db(columns,ids=theids)
-
-    thesecs = []
-    
-    for w in theworkouts:
-        timesecs = 3600*w.duration.hour
-	timesecs += 60*w.duration.minute
-	timesecs += w.duration.second
-	timesecs += 1.e-5*w.duration.microsecond
-	
-	thesecs.append(timesecs)
-
-
-    if len(thesecs) != 0:
-        maxt = 1.05*pd.Series(thesecs).max()
-    else:
-        maxt = 1000.
-
-        
-    logarr = datautils.getlogarr(maxt)
-
-    dfgrouped = df.groupby(['workoutid'])
-    delta,cpvalue,avgpower = datautils.getcp(dfgrouped,logarr)
+    delta,cpvalue,avgpower = dataprep.fetchcp(r,theworkouts)
     
     powerdf = pd.DataFrame({
         'Delta':delta,
         'CP':cpvalue,
         })
-
-
     
     powerdf = powerdf[powerdf['CP']>0]
     powerdf.dropna(axis=0,inplace=True)
@@ -3203,7 +3181,7 @@ def otwrankings_view(request,theuser=0,
 
 
     del form.fields["pieceunit"]
-            
+
     messages.error(request,message)
     return render(request, 'otwrankings.html',
 		  {'rankingworkouts':theworkouts,
@@ -6655,6 +6633,10 @@ def workout_edit_view(request,id=0,message="",successmessage=""):
                 r.write_csv(row.csvfilename,gzip=True)
                 dataprep.update_strokedata(id,r.df)
                 successmessage = "Changes saved"
+
+                if rankingpiece:
+                    dataprep.runcpupdate(row.user)
+                
                 messages.info(request,successmessage)
                 url = reverse(workout_edit_view,
                               kwargs = {