compensation/views/compensation/compensation.py

@@ -26,7 +26,7 @@ from konova.settings import DEFAULT_GROUP, ZB_GROUP, ETS_GROUP
 from konova.sub_settings.context_settings import TAB_TITLE_IDENTIFIER
 from konova.utils.message_templates import COMPENSATION_REMOVED_TEMPLATE, DATA_CHECKED_PREVIOUSLY_TEMPLATE, \
     RECORDED_BLOCKS_EDIT, CHECKED_RECORDED_RESET, FORM_INVALID, PARAMS_INVALID, IDENTIFIER_REPLACED, \
-    COMPENSATION_ADDED_TEMPLATE, DO_NOT_FORGET_TO_SHARE
+    COMPENSATION_ADDED_TEMPLATE, DO_NOT_FORGET_TO_SHARE, GEOMETRY_SIMPLIFIED
 from konova.utils.user_checks import in_group
 
 
@@ -103,6 +103,11 @@ def new_view(request: HttpRequest, intervention_id: str = None):
                     )
                 )
             messages.success(request, COMPENSATION_ADDED_TEMPLATE.format(comp.identifier))
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
             return redirect("compensation:detail", id=comp.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)
@@ -175,6 +180,11 @@ def edit_view(request: HttpRequest, id: str):
             if intervention_recorded or intervention_checked:
                 messages.info(request, CHECKED_RECORDED_RESET)
             messages.success(request, _("Compensation {} edited").format(comp.identifier))
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
             return redirect("compensation:detail", id=comp.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)
@@ -218,6 +228,8 @@ def detail_view(request: HttpRequest, id: str):
     _user = request.user
     is_data_shared = comp.intervention.is_shared_with(_user)
 
+
+
     # Order states according to surface
     before_states = comp.before_states.all().prefetch_related("biotope_type").order_by("-surface")
     after_states = comp.after_states.all().prefetch_related("biotope_type").order_by("-surface")

compensation/views/eco_account/eco_account.py

@@ -22,7 +22,7 @@ from konova.forms import SimpleGeomForm
 from konova.settings import ETS_GROUP, DEFAULT_GROUP, ZB_GROUP
 from konova.sub_settings.context_settings import TAB_TITLE_IDENTIFIER
 from konova.utils.message_templates import CANCEL_ACC_RECORDED_OR_DEDUCTED, RECORDED_BLOCKS_EDIT, FORM_INVALID, \
-    IDENTIFIER_REPLACED, DO_NOT_FORGET_TO_SHARE
+    IDENTIFIER_REPLACED, DO_NOT_FORGET_TO_SHARE, GEOMETRY_SIMPLIFIED
 from konova.utils.user_checks import in_group
 
 
@@ -84,6 +84,11 @@ def new_view(request: HttpRequest):
                     )
                 )
             messages.success(request, _("Eco-Account {} added").format(acc.identifier))
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
             return redirect("compensation:acc:detail", id=acc.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)
@@ -149,6 +154,11 @@ def edit_view(request: HttpRequest, id: str):
             # The data form takes the geom form for processing, as well as the performing user
             acc = data_form.save(request.user, geom_form)
             messages.success(request, _("Eco-Account {} edited").format(acc.identifier))
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
             return redirect("compensation:acc:detail", id=acc.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)

ema/views/ema.py

@@ -23,7 +23,7 @@ from konova.forms.modals import RemoveModalForm
 from konova.settings import DEFAULT_GROUP, ZB_GROUP, ETS_GROUP
 from konova.sub_settings.context_settings import TAB_TITLE_IDENTIFIER
 from konova.utils.message_templates import RECORDED_BLOCKS_EDIT, IDENTIFIER_REPLACED, FORM_INVALID, \
-    DO_NOT_FORGET_TO_SHARE
+    DO_NOT_FORGET_TO_SHARE, GEOMETRY_SIMPLIFIED
 from konova.utils.user_checks import in_group
 
 
@@ -84,6 +84,12 @@ def new_view(request: HttpRequest):
                     )
                 )
             messages.success(request, _("EMA {} added").format(ema.identifier))
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
+
             return redirect("ema:detail", id=ema.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)
@@ -208,6 +214,11 @@ def edit_view(request: HttpRequest, id: str):
             # The data form takes the geom form for processing, as well as the performing user
             ema = data_form.save(request.user, geom_form)
             messages.success(request, _("EMA {} edited").format(ema.identifier))
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
             return redirect("ema:detail", id=ema.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)

intervention/views/intervention.py

@@ -22,7 +22,7 @@ from konova.forms.modals import RemoveModalForm
 from konova.settings import DEFAULT_GROUP, ZB_GROUP, ETS_GROUP
 from konova.sub_settings.context_settings import TAB_TITLE_IDENTIFIER
 from konova.utils.message_templates import DATA_CHECKED_PREVIOUSLY_TEMPLATE, RECORDED_BLOCKS_EDIT, \
-    CHECKED_RECORDED_RESET, FORM_INVALID, IDENTIFIER_REPLACED, DO_NOT_FORGET_TO_SHARE
+    CHECKED_RECORDED_RESET, FORM_INVALID, IDENTIFIER_REPLACED, DO_NOT_FORGET_TO_SHARE, GEOMETRY_SIMPLIFIED
 from konova.utils.user_checks import in_group
 
 
@@ -88,6 +88,11 @@ def new_view(request: HttpRequest):
                     )
                 )
             messages.success(request, _("Intervention {} added").format(intervention.identifier))
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
             return redirect("intervention:detail", id=intervention.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)
@@ -231,6 +236,11 @@ def edit_view(request: HttpRequest, id: str):
             messages.success(request, _("Intervention {} edited").format(intervention.identifier))
             if i_check or i_rec:
                 messages.info(request, CHECKED_RECORDED_RESET)
+            if geom_form.geometry_simplified:
+                messages.info(
+                    request,
+                    GEOMETRY_SIMPLIFIED
+                )
             return redirect("intervention:detail", id=intervention.id)
         else:
             messages.error(request, FORM_INVALID, extra_tags="danger",)

konova/forms/geometry_form.py

@@ -15,6 +15,7 @@ from django.utils.translation import gettext_lazy as _
 
 from konova.forms.base_form import BaseForm
 from konova.models import Geometry
+from konova.settings import GEOM_MAX_VERTICES
 from konova.tasks import celery_update_parcels, celery_check_for_geometry_conflicts
 from konova.sub_settings.lanis_settings import DEFAULT_SRID_RLP
 from user.models import UserActionLogEntry
@@ -25,6 +26,7 @@ class SimpleGeomForm(BaseForm):
 
     """
     read_only = True
+    geometry_simplified = False
     geom = MultiPolygonField(
         srid=DEFAULT_SRID_RLP,
         label=_("Geometry"),
@@ -124,6 +126,38 @@ class SimpleGeomForm(BaseForm):
 
         return is_valid
 
+    def __is_vertices_num_valid(self):
+        """ Checks whether the number of vertices in the geometry is not too high
+
+        Returns:
+
+        """
+        geom = self.cleaned_data.get("geom")
+        g = gdal.OGRGeometry(geom, srs=DEFAULT_SRID_RLP)
+        num_vertices = g.num_coords
+
+        return num_vertices <= GEOM_MAX_VERTICES
+
+    def __simplify_geometry(self, geom, max_vert: int):
+        """ Simplifies a geometry
+
+        Geometry will be simplified until a threshold of max vertices has been reached.
+
+        Args:
+            geom (MultiPolygon): The geometry
+            max_vert (int): Threshold of maximum vertices in geometry
+
+        Returns:
+            geom (MultiPolygon): The simplified geometry
+        """
+        tolerance = 0.1
+        n = geom.num_coords
+        while(n > max_vert):
+            geom = geom.simplify(tolerance)
+            n = geom.num_coords
+            tolerance += 0.1
+        return geom
+
     def save(self, action: UserActionLogEntry):
         """ Saves the form's geometry
 
@@ -149,6 +183,13 @@ class SimpleGeomForm(BaseForm):
                 geom=self.cleaned_data.get("geom", MultiPolygon(srid=DEFAULT_SRID_RLP)),
                 created=action,
             )
+
+        is_vertices_num_valid = self.__is_vertices_num_valid()
+        if not is_vertices_num_valid:
+            geometry.geom = self.__simplify_geometry(geometry.geom, max_vert=GEOM_MAX_VERTICES)
+            geometry.save()
+            self.geometry_simplified = True
+
         # Start parcel update and geometry conflict checking procedure in a background process
         celery_update_parcels.delay(geometry.id)
         celery_check_for_geometry_conflicts.delay(geometry.id)

konova/settings.py

@@ -44,3 +44,5 @@ STRF_DATE_TIME = "%d.%m.%Y %H:%M:%S"
 DEFAULT_GROUP = "Default"
 ZB_GROUP = "Registration office"
 ETS_GROUP = "Conservation office"
+
+GEOM_MAX_VERTICES = 10000

konova/utils/message_templates.py

@@ -7,6 +7,8 @@ Created on: 02.08.21
 """
 from django.utils.translation import gettext_lazy as _
 
+from konova.settings import GEOM_MAX_VERTICES
+
 NO_DETAILS = _("no further details")
 UNKNOWN = _("Unknown")
 UNGROUPED = _("Ungrouped")
@@ -79,8 +81,9 @@ DOCUMENT_EDITED = _("Document edited")
 EDITED_GENERAL_DATA = _("Edited general data")
 ADDED_DEADLINE = _("Added deadline")
 
-# Geometry conflicts
+# Geometry
 GEOMETRY_CONFLICT_WITH_TEMPLATE = _("Geometry conflict detected with {}")
+GEOMETRY_SIMPLIFIED = _("The geometry contained more than {} vertices. It had to be simplified to match the allowed limit of {} vertices.").format(GEOM_MAX_VERTICES, GEOM_MAX_VERTICES)
 
 # INTERVENTION
 INTERVENTION_HAS_REVOCATIONS_TEMPLATE = _("This intervention has {} revocations")

konova/views/map_proxy.py

@@ -6,6 +6,7 @@ Created on: 19.08.22
 
 """
 import json
+from json import JSONDecodeError
 
 import requests
 from django.contrib.auth.decorators import login_required
@@ -13,6 +14,8 @@ from django.http import JsonResponse, HttpRequest
 from django.utils.decorators import method_decorator
 from django.utils.http import urlencode
 from django.views import View
+from django.utils.translation import gettext_lazy as _
+
 from requests.auth import HTTPDigestAuth
 
 from konova.sub_settings.proxy_settings import PROXIES, CLIENT_PROXY_AUTH_USER, CLIENT_PROXY_AUTH_PASSWORD
@@ -57,7 +60,18 @@ class ClientProxyParcelSearch(BaseClientProxyView):
     def get(self, request: HttpRequest):
         url = request.META.get("QUERY_STRING")
         content, response_code = self.perform_url_call(url)
-        body = json.loads(content)
+        try:
+            body = json.loads(content)
+        except JSONDecodeError as e:
+            body = {
+                "totalResultsCount": -1,
+                "geonames": [
+                    {
+                        "title": _("The external service is currently unavailable.<br>Please try again in a few moments...")
+                    }
+                ]
+            }
+
         if response_code != 200:
             return JsonResponse({
                 "status_code": response_code,