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90 lines
2.7 KiB
Plaintext
90 lines
2.7 KiB
Plaintext
==================
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Installing PostGIS
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==================
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`PostGIS`__ adds geographic object support to PostgreSQL, turning it
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into a spatial database. :ref:`geosbuild`, :ref:`proj4` and
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:ref:`gdalbuild` should be installed prior to building PostGIS. You
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might also need additional libraries, see `PostGIS requirements`_.
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.. note::
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The `psycopg2`_ module is required for use as the database adapter
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when using GeoDjango with PostGIS.
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.. _psycopg2: http://initd.org/psycopg/
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.. _PostGIS requirements: http://postgis.net/docs/manual-2.1/postgis_installation.html#install_requirements
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On Debian/Ubuntu, you are advised to install the following packages:
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postgresql-x.x, postgresql-x.x-postgis, postgresql-server-dev-x.x,
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python-psycopg2 (x.x matching the PostgreSQL version you want to install).
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Please also consult platform-specific instructions if you are on :ref:`macosx`
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or :ref:`windows`.
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Building from source
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====================
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First download the source archive, and extract::
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$ wget http://download.osgeo.org/postgis/source/postgis-2.1.5.tar.gz
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$ tar xzf postgis-2.1.5.tar.gz
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$ cd postgis-2.1.5
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Next, configure, make and install PostGIS::
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$ ./configure
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Finally, make and install::
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$ make
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$ sudo make install
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$ cd ..
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.. note::
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GeoDjango does not automatically create a spatial database. Please consult
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the section on :ref:`spatialdb_template91` for more information.
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__ http://postgis.net/
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Post-installation
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=================
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.. _spatialdb_template:
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.. _spatialdb_template91:
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Creating a spatial database
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---------------------------
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PostGIS 2 includes an extension for Postgres 9.1+ that can be used to enable
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spatial functionality::
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$ createdb <db name>
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$ psql <db name>
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> CREATE EXTENSION postgis;
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GeoDjango does not currently leverage any `PostGIS topology functionality`__.
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If you plan to use those features at some point, you can also install the
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``postgis_topology`` extension by issuing ``CREATE EXTENSION
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postgis_topology;``.
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__ http://postgis.net/docs/Topology.html
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.. versionchanged:: 1.8
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The ``CREATE EXTENSION postgis`` command is now automatically run during
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the :djadmin:`migrate` process. You can still create it manually if you
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wish.
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Managing the database
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---------------------
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To administer the database, you can either use the pgAdmin III program
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(:menuselection:`Start --> PostgreSQL 9.x --> pgAdmin III`) or the
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SQL Shell (:menuselection:`Start --> PostgreSQL 9.x --> SQL Shell`).
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For example, to create a ``geodjango`` spatial database and user, the following
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may be executed from the SQL Shell as the ``postgres`` user::
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postgres# CREATE USER geodjango PASSWORD 'my_passwd';
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postgres# CREATE DATABASE geodjango OWNER geodjango;
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