Forms: prevent bad initialization of areas (refs #411, refs #414)

1 files changed, 11 insertions, 0 deletions

diff --git a/chimere/forms.py b/chimere/forms.py
index 5761e2b..1d37b56 100644
--- a/chimere/forms.py
+++ b/chimere/forms.py
@@ -444,6 +444,17 @@ class AreaAdminForm(forms.ModelForm):
         """
         Custom initialization method in order to manage area
         """
+        if args:
+            vals = args[0]
+            for k in ('upper_left_lat', 'upper_left_lon',
+                      'lower_right_lat', 'lower_right_lon'):
+                v = vals.get(k)
+                try:
+                    v = float(v)
+                except ValueError:
+                    v = None
+                if not v:
+                    args[0][k] = None
         if 'instance' in keys and keys['instance']:
             instance = keys['instance']
             dct = {'area':(instance.upper_left_corner,