Fix a crash in case of invalid geometry

app/models/champs/carte_champ.rb

@@ -58,8 +58,8 @@ class Champs::CarteChamp < Champ
     bounding_box = RGeo::Cartesian::BoundingBox.new(factory)
 
     if geo_areas.present?
-      geo_areas.each do |area|
+      geo_areas.map(&:rgeo_geometry).compact.each do |geometry|
-        bounding_box.add(area.rgeo_geometry)
+        bounding_box.add(geometry)
       end
     elsif dossier.present?
       point = dossier.geo_position

app/models/dossier.rb

@@ -723,8 +723,8 @@ class Dossier < ApplicationRecord
     factory = RGeo::Geographic.simple_mercator_factory
     bounding_box = RGeo::Cartesian::BoundingBox.new(factory)
 
-    geo_areas.each do |area|
+    geo_areas.map(&:rgeo_geometry).compact.each do |geometry|
-      bounding_box.add(area.rgeo_geometry)
+      bounding_box.add(geometry)
     end
 
     [bounding_box.max_point, bounding_box.min_point].compact.flat_map(&:coordinates)

app/models/geo_area.rb

@@ -49,6 +49,8 @@ class GeoArea < ApplicationRecord
 
   def rgeo_geometry
     RGeo::GeoJSON.decode(geometry.to_json, geo_factory: RGeo::Geographic.simple_mercator_factory)
+  rescue RGeo::Error::InvalidGeometry
+    nil
   end
 
   def self.from_feature_collection(feature_collection)

spec/factories/geo_area.rb

@@ -35,5 +35,28 @@ FactoryBot.define do
         }
       end
     end
+
+    trait :line_string do
+      geometry do
+        {
+          "type": "LineString",
+          "coordinates": [
+            [2.4282521009445195, 46.53841410755813],
+            [2.42824137210846, 46.53847314771794],
+            [2.428284287452698, 46.53847314771794],
+            [2.4284291267395024, 46.538491597754714]
+          ]
+        }
+      end
+    end
+
+    trait :point do
+      geometry do
+        {
+          "type": "Point",
+          "coordinates": [2.428439855575562, 46.538476837725796]
+        }
+      end
+    end
   end
 end

spec/models/geo_area_spec.rb

@@ -1,50 +1,70 @@
 RSpec.describe GeoArea, type: :model do
   describe '#area' do
-    let(:geo_area) do
+    let(:geo_area) { create(:geo_area, :polygon) }
-      create(:geo_area, geometry: {
-        "type": "Polygon",
-        "coordinates": [
-          [
-            [2.428439855575562, 46.538476837725796],
-            [2.4284291267395024, 46.53842148758162],
-            [2.4282521009445195, 46.53841410755813],
-            [2.42824137210846, 46.53847314771794],
-            [2.428284287452698, 46.53847314771794],
-            [2.428364753723145, 46.538487907747864],
-            [2.4284291267395024, 46.538491597754714],
-            [2.428439855575562, 46.538476837725796]
-          ]
-        ]
-      })
-    end
 
     it { expect(geo_area.area).to eq(219.0) }
   end
 
   describe '#length' do
-    let(:geo_area) do
+    let(:geo_area) { create(:geo_area, :line_string) }
-      create(:geo_area, geometry: {
-        "type": "LineString",
-        "coordinates": [
-          [2.4282521009445195, 46.53841410755813],
-          [2.42824137210846, 46.53847314771794],
-          [2.428284287452698, 46.53847314771794],
-          [2.4284291267395024, 46.538491597754714]
-        ]
-      })
-    end
 
     it { expect(geo_area.length).to eq(30.8) }
   end
 
   describe '#location' do
-    let(:geo_area) do
+    let(:geo_area) { create(:geo_area, :point) }
-      create(:geo_area, geometry: {
-        "type": "Point",
-        "coordinates": [2.428439855575562, 46.538476837725796]
-      })
-    end
 
     it { expect(geo_area.location).to eq("2°25'42\"N 46°32'19\"E") }
   end
+
+  describe '#rgeo_geometry' do
+    let(:geo_area) { create(:geo_area, geometry: geometry) }
+
+    context 'invalid' do
+      let(:geometry) do
+        {
+          "type" => "MultiPolygon",
+          "coordinates" => [
+            [
+              [
+                [5.894422531127931, 48.22810341752755],
+                [5.893049240112306, 48.22427237832278],
+                [5.892534255981446, 48.22593062452037],
+                [5.892791748046875, 48.2260449843468],
+                [5.894422531127931, 48.229933066408215],
+                [5.894422531127931, 48.22810341752755]
+              ]
+            ],
+            [
+              [
+                [5.8950233459472665, 48.229933066408215],
+                [5.893478393554688, 48.228961073585126],
+                [5.892791748046875, 48.228903896961775],
+                [5.892705917358398, 48.230390468407535],
+                [5.8950233459472665, 48.229933066408215]
+              ]
+            ],
+            [
+              [
+                [5.893220901489259, 48.229246955743626],
+                [5.893392562866212, 48.22884672027457],
+                [5.892705917358398, 48.22878954352343],
+                [5.892019271850587, 48.22856083588024],
+                [5.892019271850587, 48.2277031731152],
+                [5.890989303588868, 48.22787470681807],
+                [5.889959335327149, 48.22787470681807],
+                [5.890560150146485, 48.22838930447709],
+                [5.890645980834962, 48.22878954352343],
+                [5.890989303588868, 48.229018250144584],
+                [5.892362594604493, 48.22930413198368],
+                [5.893220901489259, 48.229246955743626]
+              ]
+            ]
+          ]
+        }
+      end
+
+      it { expect(geo_area.rgeo_geometry).to be_nil }
+    end
+  end
 end