Another smaller map optimization

README.md

@@ -1,3 +1,16 @@
+TODO:
+- to continue:
+  - new table in DB for the not seen, and populated. so we can now:
+    - adjust all the seen/not seen code to make sure it uses the new model
+    - add the user preference to choose which observations should be marked as seen automatically (delay)
+    - add code to mark as seen all the observations that are older than the delay (run each day after the data import?)
+    - test if data migration performance is enough for prod purposes !!
+    - (at the end): drop the old observationView table
+    - (clone the existing site/db to test everything before real deployment)?
+- confirm with Damiano that all observations are considered as seen whe a user create an account
+- New NL translations?
+
+
 # GBIF Alert
 
 <!-- badges: start -->
@@ -27,4 +40,5 @@ See [INSTALL.md](INSTALL.md) for more information.
 ## GBIF Alert instances in the wild
 
 - LIFE RIPARIAS Early Alert: [production](https://alert.riparias.be) / [development](https://dev-alert.riparias.be) (Targets riparian invasive species in Belgium)
-- [GBIF Alert demo instance](https://gbif-alert-demo.thebinaryforest.net/) (Always in sync with the `devel` branch of this repository)
+- [GBIF Alert demo instance](https://gbif-alert-demo.thebinaryforest.net/) (Always in sync with the `devel` branch of this repository)
+- The Belgian Biodiversity Platform uses GBIF alert under the hood as an API for the ManaIAS project. 

dashboard/views/maps.py

@@ -60,6 +60,9 @@
                 SELECT ov1.id FROM $observationview_table_name ov1 WHERE ov1.user_id = {{ user_id }}
             )
         {% endif %}
+        {% if limit_to_tile %}
+            AND ST_Within(obs.location,  ST_TileEnvelope({{ zoom }}, {{ x }}, {{ y }}))
+        {% endif %}
 """
     ).substitute(
         observationview_table_name=OBSERVATIONVIEWS_TABLE_NAME,
@@ -140,6 +143,7 @@ def mvt_tiles_observations(
 
     sql_params = {
         # Map technicalities
+        "limit_to_tile": False,
         "zoom": zoom,
         "x": x,
         "y": y,