Town: generate geo field on save

1 files changed, 27 insertions, 2 deletions

diff --git a/ishtar_common/models.py b/ishtar_common/models.py
index 36da56cad..5dd9ddee1 100644
--- a/ishtar_common/models.py
+++ b/ishtar_common/models.py
@@ -85,6 +85,8 @@ def post_save_user(sender, **kwargs):
         except DatabaseError:  # manage when db is not synced
             pass
     IshtarUser.set_superuser(user)
+
+
 post_save.connect(post_save_user, sender=User)
 
 
@@ -2636,6 +2638,7 @@ class Source(OwnPerms, ImageModel, models.Model):
                   if getattr(self, attr)]
         return slugify(u"-".join(values))
 
+
 if settings.COUNTRY == 'fr':
     class Arrondissement(models.Model):
         name = models.CharField(u"Nom", max_length=30)
@@ -2689,6 +2692,10 @@ class Town(Imported, models.Model):
         return self.cached_label
 
     def generate_geo(self):
+        self.generate_limit()
+        self.generate_center()
+
+    def generate_limit(self):
         if self.limit:
             return
         parents = None
@@ -2704,8 +2711,20 @@ class Town(Imported, models.Model):
         # if union is a simple polygon make it a multi
         if 'MULTI' not in parents.wkt:
             parents = parents.wkt.replace('POLYGON', 'MULTIPOLYGON(') + ")"
+        if not parents:
+            return
         self.limit = parents
-        return self.limit
+        self.save()
+        return True
+
+    def generate_center(self):
+        if self.center or not self.limit:
+            return
+        self.center = self.limit.centroid
+        if not self.center:
+            return False
+        self.save()
+        return True
 
     def _generate_cached_label(self):
         cached_label = self.name
@@ -2716,7 +2735,13 @@ class Town(Imported, models.Model):
         return cached_label
 
 
-post_save.connect(cached_label_changed, sender=Town)
+def post_save_town(sender, **kwargs):
+    cached_label_changed(sender, **kwargs)
+    town = kwargs['instance']
+    town.generate_geo()
+
+
+post_save.connect(post_save_town, sender=Town)
 
 
 class OperationType(GeneralType):