# Identifier Generator View refactoring

* refactors identifier generator view for interventions
* simplifies same view for ema

ema/views/ema.py

@@ -98,13 +98,10 @@ def new_view(request: HttpRequest):
 
 class EmaIdentifierGeneratorView(LoginRequiredMixin, BaseIdentifierGeneratorView):
     _MODEL_CLS = Ema
+    _REDIRECT_URL_NAME = "ema:index"
 
-    def dispatch(self, request, *args, **kwargs):
-        is_ets = request.user.is_ets_user()
-        if not is_ets:
-            messages.info(request, MISSING_GROUP_PERMISSION)
-            return redirect(reverse("ema:index"))
-        return super().dispatch(request, *args, **kwargs)
+    def _user_has_permission(self, user):
+        return user.is_ets_user()
 
 
 @login_required

intervention/urls.py

@@ -14,8 +14,8 @@ from intervention.views.deduction import NewInterventionDeductionView, EditInter
     RemoveInterventionDeductionView
 from intervention.views.document import NewInterventionDocumentView, GetInterventionDocumentView, \
     RemoveInterventionDocumentView, EditInterventionDocumentView
-from intervention.views.intervention import new_view, new_id_view, detail_view, edit_view, remove_view, \
-    InterventionIndexView
+from intervention.views.intervention import new_view, detail_view, edit_view, remove_view, \
+    InterventionIndexView, InterventionIdentifierGeneratorView
 from intervention.views.log import InterventionLogView
 from intervention.views.record import InterventionRecordView
 from intervention.views.report import report_view
@@ -28,7 +28,7 @@ app_name = "intervention"
 urlpatterns = [
     path("", InterventionIndexView.as_view(), name="index"),
     path('new/', new_view, name='new'),
-    path('new/id', new_id_view, name='new-id'),
+    path('new/id', InterventionIdentifierGeneratorView.as_view(), name='new-id'),
     path('<id>', detail_view, name='detail'),
     path('<id>/log', InterventionLogView.as_view(), name='log'),
     path('<id>/edit', edit_view, name='edit'),

intervention/views/intervention.py

@@ -26,7 +26,7 @@ from konova.sub_settings.context_settings import TAB_TITLE_IDENTIFIER
 from konova.utils.message_templates import DATA_CHECKED_PREVIOUSLY_TEMPLATE, RECORDED_BLOCKS_EDIT, \
     CHECK_STATE_RESET, FORM_INVALID, IDENTIFIER_REPLACED, DO_NOT_FORGET_TO_SHARE, GEOMETRY_SIMPLIFIED, \
     GEOMETRIES_IGNORED_TEMPLATE
-from konova.views.base import BaseIndexView
+from konova.views.base import BaseIndexView, BaseIdentifierGeneratorView
 
 
 class InterventionIndexView(LoginRequiredMixin, BaseIndexView):
@@ -100,23 +100,12 @@ def new_view(request: HttpRequest):
     return render(request, template, context)
 
 
-@login_required
-@default_group_required
-def new_id_view(request: HttpRequest):
-    """ JSON endpoint
+class InterventionIdentifierGeneratorView(LoginRequiredMixin, BaseIdentifierGeneratorView):
+    _MODEL_CLS = Intervention
+    _REDIRECT_URL_NAME = "intervention:index"
 
-    Provides fetching of free identifiers for e.g. AJAX calls
-
-    """
-    tmp_intervention = Intervention()
-    identifier = tmp_intervention.generate_new_identifier()
-    while Intervention.objects.filter(identifier=identifier).exists():
-        identifier = tmp_intervention.generate_new_identifier()
-    return JsonResponse(
-        data={
-            "gen_data": identifier
-        }
-    )
+    def _user_has_permission(self, user):
+        return user.is_default_user()
 
 
 @login_required

konova/views/base.py

@@ -5,13 +5,16 @@ Created on: 15.10.25
 """
 from abc import abstractmethod
 
+from django.contrib import messages
 from django.http import HttpRequest, JsonResponse
-from django.shortcuts import render
+from django.shortcuts import render, redirect
+from django.urls import reverse
 from django.views import View
 
 from konova.contexts import BaseContext
 from konova.sub_settings.context_settings import TAB_TITLE_IDENTIFIER
 from konova.utils.general import check_user_is_in_any_group
+from konova.utils.message_templates import MISSING_GROUP_PERMISSION
 
 
 class BaseIndexView(View):
@@ -49,12 +52,15 @@ class BaseIndexView(View):
 
 class BaseIdentifierGeneratorView(View):
     _MODEL_CLS = None
+    _REDIRECT_URL_NAME: str = "home"
 
     class Meta:
         abstract = True
 
     def dispatch(self, request, *args, **kwargs):
-        request = check_user_is_in_any_group(request)
+        if not self._user_has_permission(request.user):
+            messages.info(request, MISSING_GROUP_PERMISSION)
+            return redirect(reverse(self._REDIRECT_URL_NAME))
         return super().dispatch(request, *args, **kwargs)
 
     def get(self, request: HttpRequest):
@@ -66,4 +72,15 @@ class BaseIdentifierGeneratorView(View):
             data={
                 "gen_data": identifier
             }
-        )
+        )
+
+    def _user_has_permission(self, user):
+        """ Has to be implemented in inheriting classes!
+
+        Args:
+            user ():
+
+        Returns:
+
+        """
+        raise NotImplementedError