# 349 LANIS link improvements

* replaces 'dumb' link template with LANIS mapinterface support
* adds fallback default LANIS link

intervention/models/intervention.py

@@ -14,7 +14,9 @@ from django.urls import reverse
 from django.utils import timezone
 
 from analysis.settings import LKOMPVZVO_PUBLISH_DATE
-from intervention.settings import INTERVENTION_IDENTIFIER_LENGTH, INTERVENTION_IDENTIFIER_TEMPLATE
+from intervention.settings import INTERVENTION_IDENTIFIER_LENGTH, INTERVENTION_IDENTIFIER_TEMPLATE, \
+    INTERVENTION_LANIS_LAYER_NAME_RECORDED, INTERVENTION_LANIS_LAYER_NAME_UNRECORDED_OLD_ENTRY, \
+    INTERVENTION_LANIS_LAYER_NAME_UNRECORDED
 from intervention.tasks import celery_export_to_egon
 from user.models import User
 from django.db import models, transaction
@@ -383,6 +385,27 @@ class Intervention(BaseObject,
             self.mark_as_edited(user, request=form.request, edit_comment=PAYMENT_REMOVED)
         self.send_data_to_egon()
 
+    def get_lanis_layer_name(self):
+        """ Getter for specific LANIS/WFS object layer
+
+        Returns:
+
+        """
+        retval = None
+        if self.is_recorded:
+            retval = INTERVENTION_LANIS_LAYER_NAME_RECORDED
+        else:
+            try:
+                is_old_entry = self.legal.binding_date < LKOMPVZVO_PUBLISH_DATE
+            except TypeError:
+                is_old_entry = True
+            if is_old_entry:
+                retval = INTERVENTION_LANIS_LAYER_NAME_UNRECORDED_OLD_ENTRY
+            else:
+                retval = INTERVENTION_LANIS_LAYER_NAME_UNRECORDED
+
+        return retval
+
 
 class InterventionDocument(AbstractDocument):
     """