Pemasangan GeoDjango¶

Variabel lingkungan LD_LIBRARY_PATH¶

A user may set this environment variable to customize the library paths they want to use. The typical library directory for software built from source is /usr/local/lib. Thus, /usr/local/lib needs to be included in the LD_LIBRARY_PATH variable. For example, the user could place the following in their bash profile:

export LD_LIBRARY_PATH=/usr/local/lib

Menyetel jalur pustakan sistem¶

On GNU/Linux systems, there is typically a file in /etc/ld.so.conf, which may include additional paths from files in another directory, such as /etc/ld.so.conf.d. As the root user, add the custom library path (like /usr/local/lib) on a new line in ld.so.conf. This is one example of how to do so:

$ sudo echo /usr/local/lib >> /etc/ld.so.conf
$ sudo ldconfig

For OpenSolaris users, the system library path may be modified using the crle utility. Run crle with no options to see the current configuration and use crle -l to set with the new library path. Be very careful when modifying the system library path:

# crle -l $OLD_PATH:/usr/local/lib

Pasang binutils¶

GeoDjango menggunakan fungsi find_library (dari modul Python ctypes.util) untuk menemukan pustaka. Rutin find_library menggunakan sebuah program disebut objump (bagian dari paket binutils) untuk memeriksa pustaka berbagi pada sistem GNU/Linux. Dengan demikian, jika binutils tidak dipasang pada sistem Linux anda kemudian ctypes Python mungkin tidak dapat menemukan pustaka anda bahkan jika jalur pustaka anda disetel dengan benar dan pustaka-pustaka geospasial dibangun dengan sempurna.

The binutils package may be installed on Debian and Ubuntu systems using the following command:

$ sudo apt-get install binutils

Similarly, on Red Hat and CentOS systems:

$ sudo yum install binutils

Python¶

Meskipun macOS datang dengan Python terpasang, pengguna dapat menggunakan framework installers disediakan oleh Python Software Foundation.  Sebuah keuntungan menggunakan pemasang adalah bahwa Python macOS akan tetap "pristine" untuk penggunaan sistem operasi internal.

export PATH=/Library/Frameworks/Python.framework/Versions/Current/bin:$PATH

Postgres.app¶

Postgres.app adalah sebuah peladen PostgreSQL berdisi sendiri yang menyertakan tambahan PostGIS. Anda akan juga butuh memasang gdal dan libgeoip dengan Homebrew.

Setelah memasang Postgres.app, tambah berikut ke .bash_profile anda sehingga anda dapat menjalankan progam paket dari baris-perintah. Ganti X.Y dengan versi PostgreSQL di Postgres.app anda pasang:

export PATH=$PATH:/Applications/Postgres.app/Contents/Versions/X.Y/bin

Anda dapat memeriksa jalur disetel dengan benar dengan mengetik which psql pada terminal prompt.

Homebrew¶

Homebrew menyediakan "recipes" untuk membangun biner dan paket dari sumber. itu menyediakan resep-resep untuk prasyarat GeoDjango pada komputer Macintosh menjalankan macOS. Karena Homebrew masih membangun perangkat lunak dari sumber, Xcode diwajibkan.

Summary:

$ brew install postgresql
$ brew install postgis
$ brew install gdal
$ brew install libgeoip

MacPorts¶

MacPorts mungkin digunakan untuk memasang prasyarat GeoDjango pada komputer berjalan macOS. Karena MacPorts masih membangun perangakat lunak dari sumber, Xcode diwajibkan.

Summary:

$ sudo port install postgresql13-server
$ sudo port install geos
$ sudo port install proj6
$ sudo port install postgis3
$ sudo port install gdal
$ sudo port install libgeoip

export PATH=/opt/local/bin:/opt/local/lib/postgresql13/bin

export DYLD_FALLBACK_LIBRARY_PATH=/opt/local/lib:/opt/local/lib/postgresql13

Python¶

Install a 64 bit version of Python. See Install Python for further information.

PostgreSQL¶

Download the latest PostgreSQL 15.x installer from the EnterpriseDB website. After downloading, run the installer, follow the on-screen directions, and keep the default options unless you know the consequences of changing them.

When the installer completes, it will ask to "Launch Stack Builder at exit?" -- keep this checked, as it is necessary to install PostGIS.

PostGIS¶

From within the Stack Builder (to run outside of the installer, Start ‣ PostgreSQL 15 ‣ Application Stack Builder), select PostgreSQL 15 (x64) on port 5432 from the drop down menu and click next. Expand the Categories ‣ Spatial Extensions menu tree and select PostGIS X.Y for PostgreSQL 15.

After clicking next, you will be prompted to confirm the selected package and "Download directory". Click next again, this will download PostGIS and you will be asked to click next to begin the PostGIS installer. Select the default options during install. The install process includes four Yes/No dialog boxes, the default option for all four is "No".

OSGeo4W¶

The OSGeo4W installer helps to install the PROJ, GDAL, and GEOS libraries required by GeoDjango. First, download the OSGeo4W installer, and run it. Select Express Web-GIS Install and click next. In the 'Select Packages' list, ensure that GDAL is selected. If any other packages are enabled by default, they are not required by GeoDjango and may be unchecked safely. After clicking next and accepting the license agreements, the packages will be automatically downloaded and installed, after which you may exit the installer.

Merubah lingkungan Windows¶

In order to use GeoDjango, you will need to add your OSGeo4W directories to your Windows system Path, as well as create GDAL_DATA and PROJ_LIB environment variables. The following set of commands, executable with cmd.exe, will set this up. Restart your device once this is complete for new environment variables to be recognized:

set OSGEO4W_ROOT=C:\OSGeo4W
set GDAL_DATA=%OSGEO4W_ROOT%\apps\gdal\share\gdal
set PROJ_LIB=%OSGEO4W_ROOT%\share\proj
set PATH=%PATH%;%OSGEO4W_ROOT%\bin
reg ADD "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v Path /t REG_EXPAND_SZ /f /d "%PATH%"
reg ADD "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v GDAL_DATA /t REG_EXPAND_SZ /f /d "%GDAL_DATA%"
reg ADD "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v PROJ_LIB /t REG_EXPAND_SZ /f /d "%PROJ_LIB%"

Pasang Django dan setel basisdata¶

Install Django on your system. It is recommended that you create a virtual environment for each project you create.

psycopg¶

The psycopg Python module provides the interface between Python and the PostgreSQL database. psycopg can be installed via pip within your Python virtual environment:

...\> py -m pip install psycopg

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