better links for date range on oterankings

rowers/.#views.py

@@ -0,0 +1 @@
+e408191@CZ27LT9RCGN72.29296:1520959583

rowers/views.py

@@ -4459,6 +4459,13 @@ def oterankings_view(request,theuser=0,
         except ParseError:
             pass
 
+    if 'startdate' in request.session:
+        startdate = iso8601.parse_date(request.session['startdate'])
+
+
+    if 'enddate' in request.session:
+        enddate = iso8601.parse_date(request.session['enddate'])
+
     if enddate < startdate:
 	s = enddate
 	enddate = startdate
@@ -4507,6 +4514,7 @@ def oterankings_view(request,theuser=0,
                 deltaform = DeltaDaysForm()
 
     else:
+        print 'aap',startdate
 	dateform = DateRangeForm(initial={
 	    'startdate': startdate,
 	    'enddate': enddate,
@@ -4757,6 +4765,13 @@ def oterankings_view(request,theuser=0,
 
         #    del form.fields["pieceunit"]
 
+    startdatestring = startdate.strftime('%Y-%m-%d')
+    enddatestring = enddate.strftime('%Y-%m-%d')
+    request.session['startdate'] = startdatestring
+    request.session['enddate'] = enddatestring
+
+
+
     messages.error(request,message)
     return render(request, 'oterankings.html',
 		  {'rankingworkouts':theworkouts,