zoo_meta: reconstruit les index via les signaux (#19092)

Soit après un signal post_save sur un schéma soit après une migration.

zoo/zoo_meta/apps.py

@@ -15,9 +15,25 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from django.utils.translation import ugettext_lazy as _
+from django.db.models.signals import post_migrate, post_save
 from django.apps import AppConfig
 
 
 class ZooMetaAppConfig(AppConfig):
     name = 'zoo.zoo_meta'
     verbose_name = _('metadatas')
+
+    def post_migrate(self, **kwargs):
+        from .models import EntitySchema
+
+        for schema in EntitySchema.objects.all():
+            schema.rebuild_indexes()
+
+    def post_save(self, sender, instance, **kwargs):
+        instance.rebuild_indexes()
+
+    def ready(self):
+        from .models import EntitySchema
+
+        post_migrate.connect(self.post_migrate)
+        post_save.connect(self.post_save, sender=EntitySchema)

zoo/zoo_meta/models.py

@@ -116,10 +116,6 @@ class CommonSchema(models.Model):
 
     objects = GetBySlugManager()
 
-    def save(self, *args, **kwargs):
-        super(CommonSchema, self).save(*args, **kwargs)
-        self.rebuild_indexes()
-
     def make_caption(self, value):
         if self.caption_template:
             try: