Cleanup mvt-postgres provider

Author: webb-ben

docs/source/data-publishing/ogcapi-tiles.rst

@@ -140,9 +140,6 @@ MVT-postgresql
 .. note::
    Must have PostGIS installed with protobuf-c support 
 
-.. note::
-   Geometry must be using EPSG:4326
-
 This provider gives support to serving tiles generated using `PostgreSQL <https://www.postgresql.org/>`_ with `PostGIS <https://postgis.net/>`_.
 The tiles are rendered on-the-fly using `ST_AsMVT <https://postgis.net/docs/ST_AsMVT.html>`_ and related methods.
 

pygeoapi/provider/mvt_postgresql.py

@@ -48,9 +48,6 @@
 
 LOGGER = logging.getLogger(__name__)
 
-WEBMERCATORQUAD = TileMatrixSetEnum.WEBMERCATORQUAD.value
-WORLDCRS84QUAD = TileMatrixSetEnum.WORLDCRS84QUAD.value
-
 
 class MVTPostgreSQLProvider(PostgreSQLProvider, BaseMVTProvider):
     """
@@ -87,14 +84,17 @@ def get_fields(self):
 
     def get_layer(self):
         """
-        Extracts layer name from url
+        Use table name as layer name
 
-        :returns: layer name
+        :returns: `str` of layer name
         """
         return self.table
 
     def get_tiling_schemes(self):
-        return [WEBMERCATORQUAD, WORLDCRS84QUAD]
+        return [
+            TileMatrixSetEnum.WEBMERCATORQUAD.value,
+            TileMatrixSetEnum.WORLDCRS84QUAD.value
+        ]
 
     def get_tiles_service(self, baseurl=None, servicepath=None,
                           dirpath=None, tile_type=None):
@@ -154,18 +154,18 @@ def get_tiles(self, layer='default', tileset=None,
             *self.get_fields(),
             func.ST_AsMVTGeom(geom_column, tile_envelope)
         ]
-        tile_query = select(
+        mvt_query = select(
             func.ST_AsMVT(
                 select(*mvt_columns)
                 .select_from(self.table_model)
-                .cte('tile')
+                .cte('mvt')
                 .table_valued(),
                 layer
             )
         )
 
         with Session(self._engine) as session:
-            result = session.execute(tile_query).scalar()
+            result = session.execute(mvt_query).scalar()
 
         return bytes(result) or None