bug fix hr preferences form

rowers/models.py

@@ -3548,7 +3548,7 @@ class RowerForm(ModelForm):
         return an
 
     def clean_max(self):
-        max = self.cleaned_data['max']
+        max = int(self.cleaned_data['max'])
 
         if max<10:
             raise forms.ValidationError("Max heart rate should be higher than 10 bpm")
@@ -3574,7 +3574,7 @@ class RowerForm(ModelForm):
             ut2 = self.cleaned_data['ut2']
         except:
             try:
-                ut2 = self.data['ut2']
+                ut2 = int(self.data['ut2'])
             except ValueError:
                 ut2 = 0
 
@@ -3582,7 +3582,7 @@ class RowerForm(ModelForm):
             ut1 = self.cleaned_data['ut1']
         except:
             try:
-                ut1 = self.data['ut1']
+                ut1 = int(self.data['ut1'])
             except ValueError:
                 ut1 = 0
 
@@ -3590,7 +3590,7 @@ class RowerForm(ModelForm):
             at = self.cleaned_data['at']
         except:
             try:
-                at = self.data['at']
+                at = int(self.data['at'])
             except ValueError:
                 at = 0
 
@@ -3598,7 +3598,7 @@ class RowerForm(ModelForm):
             an = self.cleaned_data['an']
         except:
             try:
-                an = self.data['an']
+                int(an = self.data['an'])
             except ValueError:
                 an = 0
 
@@ -3606,7 +3606,7 @@ class RowerForm(ModelForm):
             tr = self.cleaned_data['tr']
         except:
             try:
-                tr = self.data['tr']
+                tr = int(self.data['tr'])
             except ValueError:
                 tr = 0
 
@@ -3614,7 +3614,7 @@ class RowerForm(ModelForm):
             max = self.cleaned_data['max']
         except:
             try:
-                max = self.data['max']
+                max = int(self.data['max'])
             except ValueError:
                 max = 0