Override attribution save() + stuff

equipment/models.py

@@ -1,7 +1,7 @@
 from django.db import models
+from django.core.exceptions import ValidationError
 from django.utils.translation import ugettext_lazy as _
-from event.models import Activity
-from shared.models import EventSpecificMixin
+from event.models import Activity, EventSpecificMixin
 
 
 class Equipment(EventSpecificMixin, models.Model):
@@ -18,8 +18,8 @@ class Equipment(EventSpecificMixin, models.Model):
             )
 
     class Meta:
-        verbose_name = _("matériel permanent")
-        verbose_name_plural = _("matériels permanents")
+        verbose_name = _("matériel")
+        verbose_name_plural = _("matériels")
 
     def __str__(self):
         return self.name
@@ -40,6 +40,12 @@ class EquipmentAttribution(models.Model):
                                   self.amout,
                                   self.activity.get_herited('title'))
 
+    def save(self, *args, **kwargs):
+        if self.equipment.event and self.equipment.event != self.activity.event:
+            raise ValidationError
+
+        super(EquipmentAttribution, self).save(*args, **kwargs)
+
 
 class EquipmentRemark(models.Model):
     remark = models.TextField(_("remarque sur le matériel"))