[models] Added config_modified signal

django_netjsonconfig/base/config.py

@@ -6,6 +6,7 @@
 from sortedm2m.fields import SortedManyToManyField
 
 from .. import settings as app_settings
+from ..signals import config_modified
 from .base import BaseConfig
 
 
@@ -51,13 +52,33 @@ def clean(self):
                 self.set_status_modified(save=False)
                 break
 
+    def save(self, *args, **kwargs):
+        result = super(AbstractConfig, self).save(*args, **kwargs)
+        if not self._state.adding and getattr(self, '_send_config_modified_after_save', False):
+            self._send_config_modified_signal()
+        return result
+
+    def _send_config_modified_signal(self):
+        """
+        sends signal ``config_modified``
+        """
+        config_modified.send(sender=self.__class__,
+                             config=self,
+                             device=self.device)
+
     def _set_status(self, status, save=True):
         self.status = status
         if save:
             self.save()
 
     def set_status_modified(self, save=True):
         self._set_status('modified', save)
+        if save:
+            self._send_config_modified_signal()
+        else:
+            # set this attribute that will be
+            # checked in the save method
+            self._send_config_modified_after_save = True
 
     def set_status_running(self, save=True):
         self._set_status('running', save)
@@ -208,6 +229,8 @@ def templates_changed(cls, action, instance, **kwargs):
             return
         if instance.status != 'modified':
             instance.set_status_modified()
+        else:
+            instance._send_config_modified_signal()
 
     @classmethod
     def manage_vpn_clients(cls, action, instance, pk_set, **kwargs):

django_netjsonconfig/base/template.py

@@ -76,7 +76,12 @@ def save(self, *args, **kwargs):
         super(AbstractTemplate, self).save(*args, **kwargs)
         # update relations
         if update_related_config_status:
-            self.config_relations.update(status='modified')
+            self._update_related_config_status()
+
+    def _update_related_config_status(self):
+        self.config_relations.update(status='modified')
+        for config in self.config_relations.all():
+            config._send_config_modified_signal()
 
     def clean(self, *args, **kwargs):
         """

django_netjsonconfig/signals.py

@@ -0,0 +1,3 @@
+from django.dispatch import Signal
+
+config_modified = Signal(providing_args=['device', 'config'])