feat(spp_gis, spp_gis_report): GIS foundations and registrant GPS

- Add OGC API support and area boundary handling to spp_gis
- Refactor GIS report model for improved data layer management
- Add new spp_registrant_gis module with GPS coordinates for registrants

Author: jeremi

spp_gis/fields.py

@@ -142,7 +142,7 @@ def condition_to_sql(self, field_expr, operator, value, model, alias, query):
         # Check if this is a GIS operator
         if operator in self._gis_operators:
             try:
-                operator_obj = Operator(self)
+                operator_obj = Operator(self, table_alias=alias)
                 return operator_obj.domain_query(operator, value)
             except Exception as e:
                 _logger.error(f"Failed to generate GIS SQL for operator {operator}: {e}")

spp_gis/operators.py

@@ -95,8 +95,21 @@ class Operator:
         "Polygon": "polygon",
     }
 
-    def __init__(self, field):
+    def __init__(self, field, table_alias=None):
         self.field = field
+        self.table_alias = table_alias
+
+    @property
+    def qualified_field_name(self):
+        """Return the field name qualified with table alias for use in SQL.
+
+        When a table_alias is provided (from Odoo's condition_to_sql),
+        the field name is qualified to avoid ambiguous column references
+        in queries that involve JOINs (e.g., from model inheritance).
+        """
+        if self.table_alias:
+            return f'"{self.table_alias}"."{self.field.name}"'
+        return self.field.name
 
     def st_makepoint(self, longitude, latitude):
         """
@@ -367,16 +380,16 @@ def get_postgis_query(
 
         if distance:
             left = geom
-            right = self.field.name
+            right = self.qualified_field_name
 
             # Need to transform srid to 3857 for distance calculation
             if self.field.srid == 4326:
                 left = self.st_transform(geom, 3857)
-                right = self.st_transform(self.field.name, 3857)
+                right = self.st_transform(self.qualified_field_name, 3857)
 
             return f"{self.POSTGIS_SPATIAL_RELATION[operation]}(ST_Buffer({left}, {distance}), {right})"
         else:
-            return f"{self.POSTGIS_SPATIAL_RELATION[operation]}({geom}, {self.field.name})"
+            return f"{self.POSTGIS_SPATIAL_RELATION[operation]}({geom}, {self.qualified_field_name})"
 
     def validate_and_extract_value(self, value):
         """

spp_gis/tests/test_geo_fields.py

@@ -154,3 +154,95 @@ class MockRecord:
         invalid_geojson = json.dumps({"invalid": "data"})
         with self.assertRaises(ValidationError):
             field.convert_to_column(invalid_geojson, MockRecord(), validate=True)
+
+
+class TestOperatorTableAlias(TransactionCase):
+    """Test that the Operator generates table-qualified column names in SQL."""
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.env = cls.env(
+            context=dict(
+                cls.env.context,
+                test_queue_job_no_delay=True,
+            )
+        )
+
+    def _make_field(self, name="geo_polygon", srid=4326):
+        """Create a mock field for the Operator."""
+        from odoo.addons.spp_gis.fields import GeoPolygonField
+
+        field = GeoPolygonField()
+        field.name = name
+        field.srid = srid
+        return field
+
+    def test_operator_without_alias_uses_bare_field_name(self):
+        """Operator without table_alias uses bare field name (backward compat)."""
+        from odoo.addons.spp_gis.operators import Operator
+
+        field = self._make_field()
+        operator = Operator(field)
+        self.assertEqual(operator.qualified_field_name, "geo_polygon")
+
+    def test_operator_with_alias_qualifies_field_name(self):
+        """Operator with table_alias generates table-qualified column reference."""
+        from odoo.addons.spp_gis.operators import Operator
+
+        field = self._make_field()
+        operator = Operator(field, table_alias="spp_area")
+        self.assertEqual(operator.qualified_field_name, '"spp_area"."geo_polygon"')
+
+    def test_domain_query_with_alias_uses_qualified_name(self):
+        """domain_query generates SQL with table-qualified column names."""
+        from odoo.addons.spp_gis.operators import Operator
+
+        field = self._make_field()
+        operator = Operator(field, table_alias="spp_area")
+
+        geojson = {
+            "type": "Polygon",
+            "coordinates": [[[0, 0], [1, 0], [1, 1], [0, 1], [0, 0]]],
+        }
+
+        result = operator.domain_query("gis_intersects", geojson)
+        sql_string = str(result)
+
+        self.assertIn("ST_Intersects", sql_string)
+        self.assertIn('"spp_area"."geo_polygon"', sql_string)
+        self.assertNotRegex(sql_string, r'(?<!")\bgeo_polygon\b(?!")')
+
+    def test_domain_query_without_alias_uses_bare_name(self):
+        """domain_query without alias uses bare field name for backward compat."""
+        from odoo.addons.spp_gis.operators import Operator
+
+        field = self._make_field()
+        operator = Operator(field)
+
+        geojson = {
+            "type": "Polygon",
+            "coordinates": [[[0, 0], [1, 0], [1, 1], [0, 1], [0, 0]]],
+        }
+
+        result = operator.domain_query("gis_intersects", geojson)
+        sql_string = str(result)
+
+        self.assertIn("ST_Intersects", sql_string)
+        self.assertIn("geo_polygon", sql_string)
+
+    def test_get_postgis_query_with_alias_and_distance(self):
+        """get_postgis_query with distance also uses qualified field name."""
+        from odoo.addons.spp_gis.operators import Operator
+
+        field = self._make_field()
+        operator = Operator(field, table_alias="spp_area")
+
+        result = operator.get_postgis_query(
+            operation="intersects",
+            coordinates=[79.86, 6.93],
+            distance=1000,
+            layer_type="point",
+        )
+
+        self.assertIn('"spp_area"."geo_polygon"', result)

spp_gis_report/models/gis_report.py

@@ -467,8 +467,25 @@ def _compute_base_aggregation(self):
             _logger.info("No areas at level %s found", self.base_area_level)
             return {}
 
-        # Add area filter to domain
-        domain.append((area_field, "in", base_areas.ids))
+        # Build mapping from descendant areas to their base-level ancestor.
+        # Registrants may be assigned to areas more granular than base_area_level
+        # (e.g., barangays when base level is municipality). We include all
+        # descendant areas in the query and aggregate results back to the
+        # base-level parent.
+        child_to_base = {}
+        for base_area in base_areas:
+            child_to_base[base_area.id] = base_area.id
+            descendants = self.env["spp.area"].search(
+                [
+                    ("id", "child_of", base_area.id),
+                    ("id", "!=", base_area.id),
+                ]
+            )
+            for desc in descendants:
+                child_to_base[desc.id] = base_area.id
+
+        # Add area filter to domain (base areas + all descendants)
+        domain.append((area_field, "in", list(child_to_base.keys())))
 
         # Initialize results for all base areas with 0
         # This ensures areas with no matching records get 0 instead of being missing
@@ -484,12 +501,11 @@ def _compute_base_aggregation(self):
             for group in groups:
                 if group[area_field]:
                     area_id = group[area_field][0]
+                    base_id = child_to_base.get(area_id, area_id)
                     count = group[f"{area_field}_count"]
-                    results[area_id] = {
-                        "raw": count,
-                        "count": count,
-                        "weight": count,
-                    }
+                    results[base_id]["raw"] += count
+                    results[base_id]["count"] += count
+                    results[base_id]["weight"] += count
 
         elif self.aggregation_method in ("sum", "avg", "min", "max"):
             if not self.aggregation_field:
@@ -506,13 +522,19 @@ def _compute_base_aggregation(self):
             for group in groups:
                 if group[area_field]:
                     area_id = group[area_field][0]
+                    base_id = child_to_base.get(area_id, area_id)
                     value = group.get(self.aggregation_field) or 0
                     count = group[f"{area_field}_count"]
-                    results[area_id] = {
-                        "raw": value,
-                        "count": count,
-                        "weight": count,
-                    }
+                    # Accumulate weighted values for proper re-aggregation
+                    results[base_id]["raw"] += value * count
+                    results[base_id]["count"] += count
+                    results[base_id]["weight"] += count
+
+            # For avg: convert accumulated (value*count) back to weighted average
+            if agg_func == "avg":
+                for data in results.values():
+                    if data["count"] > 0:
+                        data["raw"] = data["raw"] / data["count"]
 
         # Fill in None for areas with no data (distinguishes "no data" from "zero count")
         for area in base_areas:
@@ -1478,14 +1500,17 @@ def _to_geojson(
 
             # Add geometry if requested
             if include_geometry and data.area_id.geo_polygon:
-                # TODO: Use PostGIS ST_AsGeoJSON for performance
-                # For now, use Odoo's geometry field (WKT format)
                 try:
-                    from shapely import wkt
+                    geo = data.area_id.geo_polygon
+                    # GeoPolygonField may return a Shapely geometry object
+                    # or a WKT/WKB string depending on the spp_gis version.
+                    if hasattr(geo, "__geo_interface__"):
+                        feature["geometry"] = geo.__geo_interface__
+                    else:
+                        from shapely import wkt
 
-                    shape = wkt.loads(data.area_id.geo_polygon)
-                    # __geo_interface__ returns a dict that's already JSON-serializable
-                    feature["geometry"] = shape.__geo_interface__
+                        shape = wkt.loads(geo)
+                        feature["geometry"] = shape.__geo_interface__
                 except ImportError:
                     _logger.warning(
                         "shapely not available, geometry export limited. Install shapely for full geometry support."

spp_registrant_gis/README.rst

@@ -0,0 +1,129 @@
+.. image:: https://odoo-community.org/readme-banner-image
+   :target: https://odoo-community.org/get-involved?utm_source=readme
+   :alt: Odoo Community Association
+
+======================
+OpenSPP Registrant GIS
+======================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:3f603a69c4731312b90dc10708243432cd74193750065d7fe86c2364732c1e9a
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Alpha-red.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Alpha
+.. |badge2| image:: https://img.shields.io/badge/license-LGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/lgpl-3.0-standalone.html
+    :alt: License: LGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OpenSPP%2Fopenspp--modules-lightgray.png?logo=github
+    :target: https://github.com/OpenSPP/openspp-modules/tree/19.0/spp_registrant_gis
+    :alt: OpenSPP/openspp-modules
+
+|badge1| |badge2| |badge3|
+
+Extends registrants with GPS coordinates for spatial queries and
+geographic analysis. Adds a PostGIS point field to both individuals and
+groups, enabling proximity-based targeting and mapping.
+
+Key Capabilities
+~~~~~~~~~~~~~~~~
+
+-  Store latitude/longitude coordinates on any registrant (individual or
+   group)
+-  Query registrants by geographic location using PostGIS spatial
+   operators
+-  Visualize registrant locations on maps via GIS widgets
+
+Key Models
+~~~~~~~~~~
+
+This module extends existing models, no new models added:
+
+=============== ==================================
+Model           Extension
+=============== ==================================
+``res.partner`` Adds ``coordinates`` GeoPointField
+=============== ==================================
+
+UI Location
+~~~~~~~~~~~
+
+-  **Individual Form**: Located in Profile tab under "Location" section
+   (after phone numbers)
+-  **Group Form**: Located in Profile tab under "Location" section
+   (after phone numbers)
+-  Field is read-only when registrant is disabled
+
+Security
+~~~~~~~~
+
+No new models or security groups. Uses existing ``res.partner``
+permissions from ``spp_registry``.
+
+Technical Details
+~~~~~~~~~~~~~~~~~
+
+-  Field type: ``fields.GeoPointField`` (from ``spp_gis``)
+-  Storage: PostGIS POINT geometry with SRID 4326 (WGS84)
+-  Supports spatial operators: ``gis_intersects``, ``gis_within``,
+   ``gis_contains``, ``gis_distance``, etc.
+-  Widget: ``geo_point`` for coordinate input/display
+
+Dependencies
+~~~~~~~~~~~~
+
+``spp_gis``, ``spp_registry``
+
+.. IMPORTANT::
+   This is an alpha version, the data model and design can change at any time without warning.
+   Only for development or testing purpose, do not use in production.
+   `More details on development status <https://odoo-community.org/page/development-status>`_
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OpenSPP/openspp-modules/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+`feedback <https://github.com/OpenSPP/openspp-modules/issues/new?body=module:%20spp_registrant_gis%0Aversion:%2019.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+-------
+
+* OpenSPP.org
+
+Maintainers
+-----------
+
+.. |maintainer-jeremi| image:: https://github.com/jeremi.png?size=40px
+    :target: https://github.com/jeremi
+    :alt: jeremi
+.. |maintainer-gonzalesedwin1123| image:: https://github.com/gonzalesedwin1123.png?size=40px
+    :target: https://github.com/gonzalesedwin1123
+    :alt: gonzalesedwin1123
+.. |maintainer-reichie020212| image:: https://github.com/reichie020212.png?size=40px
+    :target: https://github.com/reichie020212
+    :alt: reichie020212
+
+Current maintainers:
+
+|maintainer-jeremi| |maintainer-gonzalesedwin1123| |maintainer-reichie020212| 
+
+This module is part of the `OpenSPP/openspp-modules <https://github.com/OpenSPP/openspp-modules/tree/19.0/spp_registrant_gis>`_ project on GitHub.
+
+You are welcome to contribute.

spp_registrant_gis/__init__.py

@@ -0,0 +1,2 @@
+# Part of OpenSPP. See LICENSE file for full copyright and licensing details.
+from . import models