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Code Issues 32 Releases Wiki Activity

Documented GeoQuerySet replacement by functions

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Claude Paroz
2015-01-30 20:23:23 +01:00
parent ea27e26b09
commit 1b1b58bc7b
7 changed files with 635 additions and 57 deletions
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103
docs/ref/contrib/gis/db-api.txt
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@@ -115,13 +115,6 @@ GeoJSON , WKT, or HEXEWKB).
A complete reference can be found in the :ref:`spatial lookup reference
<spatial-lookups>`.
.. note::
GeoDjango constructs spatial SQL with the :class:`GeoQuerySet`, a
subclass of :class:`~django.db.models.query.QuerySet`. The
:class:`GeoManager` instance attached to your model is what
enables use of :class:`GeoQuerySet`.
.. _distance-queries:
Distance Queries
@@ -152,7 +145,7 @@ The following distance lookups are available:
.. note::
For *measuring*, rather than querying on distances, use the
:meth:`GeoQuerySet.distance` method.
:class:`~django.contrib.gis.db.models.functions.Distance` function.
Distance lookups take a tuple parameter comprising:
@@ -255,43 +248,47 @@ Lookup Type PostGIS Oracle MySQL [#]_ SpatiaLite
:lookup:`strictly_below` X
================================= ========= ======== ============ ==========
.. _geoqueryset-method-compatibility:
.. _database-functions-compatibility:
``GeoQuerySet`` Methods
-----------------------
The following table provides a summary of what :class:`GeoQuerySet` methods
are available on each spatial backend. Please note that MySQL does not
support any of these methods, and is thus excluded from the table.
Database functions
------------------
==================================== ======= ====== ==========
Method PostGIS Oracle SpatiaLite
==================================== ======= ====== ==========
:meth:`GeoQuerySet.area` X X X
:meth:`GeoQuerySet.centroid` X X X
:meth:`GeoQuerySet.difference` X X X
:meth:`GeoQuerySet.distance` X X X
:meth:`GeoQuerySet.envelope` X X
:meth:`GeoQuerySet.force_rhr` X
:meth:`GeoQuerySet.geohash` X
:meth:`GeoQuerySet.geojson` X X
:meth:`GeoQuerySet.gml` X X X
:meth:`GeoQuerySet.intersection` X X X
:meth:`GeoQuerySet.kml` X X
:meth:`GeoQuerySet.length` X X X
:meth:`GeoQuerySet.mem_size` X
:meth:`GeoQuerySet.num_geom` X X X
:meth:`GeoQuerySet.num_points` X X X
:meth:`GeoQuerySet.perimeter` X X
:meth:`GeoQuerySet.point_on_surface` X X X
:meth:`GeoQuerySet.reverse_geom` X X
:meth:`GeoQuerySet.scale` X X
:meth:`GeoQuerySet.snap_to_grid` X
:meth:`GeoQuerySet.svg` X X
:meth:`GeoQuerySet.sym_difference` X X X
:meth:`GeoQuerySet.transform` X X X
:meth:`GeoQuerySet.translate` X X
:meth:`GeoQuerySet.union` X X X
==================================== ======= ====== ==========
.. module:: django.contrib.gis.db.models.functions
:synopsis: GeoDjango's database functions.
The following table provides a summary of what geography-specific database
functions are available on each spatial backend.
==================================== ======= ====== ===== ==========
Method PostGIS Oracle MySQL SpatiaLite
==================================== ======= ====== ===== ==========
:class:`Area` X X X X
:class:`AsGeoJSON` X X
:class:`AsGML` X X X
:class:`AsKML` X X
:class:`AsSVG` X X
:class:`BoundingCircle` X
:class:`Centroid` X X X
:class:`Difference` X X X
:class:`Distance` X X X X
:class:`Envelope` X X
:class:`ForceRHR` X
:class:`GeoHash` X
:class:`Intersection` X X X
:class:`Length` X X X X
:class:`MemSize` X
:class:`NumGeometries` X X X
:class:`NumPoints` X X X
:class:`Perimeter` X X X
:class:`PointOnSurface` X X X
:class:`Reverse` X X X (≥ 4.0)
:class:`Scale` X X
:class:`SnapToGrid` X X
:class:`SymDifference` X X X
:class:`Transform` X X X
:class:`Translate` X X
:class:`Union` X X X
==================================== ======= ====== ===== ==========
Aggregate Functions
-------------------
@@ -300,15 +297,17 @@ The following table provides a summary of what GIS-specific aggregate functions
are available on each spatial backend. Please note that MySQL does not
support any of these aggregates, and is thus excluded from the table.
==================================== ======= ====== ==========
Aggregate PostGIS Oracle SpatiaLite
==================================== ======= ====== ==========
:class:`Collect` X (from v3.0)
:class:`Extent` X X (from v3.0)
:class:`Extent3D` X
:class:`MakeLine` X
:class:`Union` X X X
==================================== ======= ====== ==========
.. currentmodule:: django.contrib.gis.db.models
======================= ======= ====== ==========
Aggregate PostGIS Oracle SpatiaLite
======================= ======= ====== ==========
:class:`Collect` X (from v3.0)
:class:`Extent` X X (from v3.0)
:class:`Extent3D` X
:class:`MakeLine` X
:class:`Union` X X X
======================= ======= ====== ==========
.. rubric:: Footnotes
.. [#fnwkt] *See* Open Geospatial Consortium, Inc., `OpenGIS Simple Feature Specification For SQL <http://www.opengis.org/docs/99-049.pdf>`_, Document 99-049 (May 5, 1999), at Ch. 3.2.5, p. 3-11 (SQL Textual Representation of Geometry).