adding user setting for CP duration range - default is 42 days

rowers/models.py

@@ -756,6 +756,13 @@ class Rower(models.Model):
         ('y','y'),
     )
 
+    cppresets = (
+        (42,'6 weeks'),
+        (91,'13 weeks'),
+        (183,'26 weeks'),
+        (365,'a year')
+    )
+
     user = models.OneToOneField(User,on_delete=models.CASCADE)
 
     #billing details
@@ -837,7 +844,8 @@ class Rower(models.Model):
     ep3 = models.FloatField(default=1.0,verbose_name="erg CP p4")
     ecpratio = models.FloatField(default=1.0,verbose_name="erg CP fit ratio")
 
-
+    cprange = models.IntegerField(default=42,verbose_name="Range for calculation breakthrough workouts and fitness (CP)",
+                                  choices=cppresets)
 
     otwslack = models.IntegerField(default=0,verbose_name="OTW Power slack")
 
@@ -3538,6 +3546,11 @@ class RowerPowerForm(ModelForm):
         model = Rower
         fields = ['hrftp','ftp','otwslack']
 
+class RowerCPForm(ModelForm):
+    class Meta:
+        model = Rower
+        fields = ['cprange']
+
 # Form to set rower's Power zones, including test routines
 # to enable consistency
 class RowerPowerZonesForm(ModelForm):