Fixed an issue with the maps API

CHANGELOG.md

@@ -1,3 +1,7 @@
+# Current (unreleased)
+
+- Fixed a bg with the maps API (see https://github.com/riparias/gbif-alert/issues/283)
+
 # v1.7.6 (2024-07-26)
 
 - Another map performance improvement (missing index)

dashboard/tests/views/test_maps.py

@@ -118,6 +118,21 @@ def setUpTestData(cls):
 class MinMaxPerHexagonTests(MapsTestDataMixin, TestCase):
     """Tests covering the min_max_in_hexagon endpoint"""
 
+    def test_min_max_status_area_combinations(self):
+        """Regression test for https://github.com/riparias/gbif-alert/issues/283"""
+        self.client.login(username="frusciante", password="12345")
+
+        response = self.client.get(
+            reverse("dashboard:internal-api:maps:mvt-min-max-per-hexagon"),
+            data={
+                "zoom": 8,
+                "status": "seen",
+                "areaIds[]": self.public_area_andenne.pk,
+            },
+        )
+
+        self.assertEqual(response.status_code, 200)
+
     def test_min_max_per_hexagon(self):
         # At zoom level 8, with the initial data: we should have two polygons, both at 1. So min=1 and max=1
         response = self.client.get(

dashboard/views/maps.py

@@ -251,7 +251,11 @@ def observation_min_max_in_hex_grid_json(request: HttpRequest):
                         LEFT JOIN dashboard_species as species ON obs.species_id = species.id
                         
                         {% if area_ids %}
-                        ,(SELECT mpoly FROM $areas_table_name WHERE $areas_table_name.id IN {{ area_ids | inclause }}) AS areas
+                        LEFT JOIN (
+                            SELECT mpoly
+                            FROM $areas_table_name
+                            WHERE $areas_table_name.id IN {{ area_ids | inclause }}
+                        ) AS areas ON ST_Within(obs.location, areas.mpoly)
                         {% endif %}
                         {% if status == 'seen' %}
                             INNER JOIN $observationview_table_name