#36 Quality checks

* adds unchecking/unrecording of interventions in case of post-check|post-record editing

intervention/models.py

@@ -17,7 +17,7 @@ from codelist.settings import CODELIST_REGISTRATION_OFFICE_ID, CODELIST_CONSERVA
 from intervention.managers import InterventionManager
 from intervention.utils.quality import InterventionQualityChecker
 from konova.models import BaseObject, Geometry, UuidModel, BaseResource, AbstractDocument, \
-    generate_document_file_upload_path, RecordableMixin
+    generate_document_file_upload_path, RecordableMixin, CheckableMixin
 from konova.settings import DEFAULT_SRID_RLP, LANIS_LINK_TEMPLATE, LANIS_ZOOM_LUT
 from konova.utils import generators
 from user.models import UserActionLogEntry
@@ -171,7 +171,7 @@ class LegalData(UuidModel):
     revocation = models.OneToOneField(Revocation, null=True, blank=True, help_text="Refers to 'Widerspruch am'", on_delete=models.SET_NULL)
 
 
-class Intervention(BaseObject, RecordableMixin):
+class Intervention(BaseObject, RecordableMixin, CheckableMixin):
     """
     Interventions are e.g. construction sites where nature used to be.
     """
@@ -273,11 +273,11 @@ class Intervention(BaseObject, RecordableMixin):
 
         """
         if self.identifier is None or len(self.identifier) == 0:
-            # No identifier given
+            # No identifier given by the user
             self.identifier = self.generate_new_identifier()
 
-        # Before saving, make sure the set identifier is not used, yet
-        while Intervention.objects.filter(identifier=self.identifier).exists():
+        # Before saving, make sure the given identifier is not used in the meanwhile
+        while Intervention.objects.filter(identifier=self.identifier).exclude(id=self.id).exists():
             self.identifier = self.generate_new_identifier()
         super().save(*args, **kwargs)