PostGIS and the Web - PostGIS - page 515

Developing web applications with

GeoDjango - part 1

Inthisrecipeandthenext,youwillusethe Django ,aPythonwebframework,tocre-
ateawebapplicationtomanagewildlifesightingsusingaPostGISdatastore.Inthis
recipe,youwillbuildthebackofficeofthewebapplication,basedontheDjangoad-
min site.

Upon accessing the back office, an administrative user will be able to, after authen-
tication,manage(insert,update,anddelete)themainentities(animalsandsightings)
ofthedatabase.Inthenextpartoftherecipe,youwillbuildafrontofficethatdisplays
the sightings on a map based on the Leaflet JavaScript library.

Note

You can find a copy of the whole project that you are going to build in the code
bundleunder chp09/wildlife .Refertoitifaconceptisnotclear,orifyouwant
tocopyandpastethecodeasyougothroughthestepsoftherecipe,ratherthan
typing code from scratch.

Getting ready

1. If you are new to Django, check out the official Django tutorial at ht-
tps://docs.djangoproject.com/en/dev/intro/tutorial01/ , and then return to this
recipe.
2. Create a Python virtualenv ( http://www.virtualenv.org/en/latest/ ) to create an
isolated Python environment tousewiththewebapplication youwillbuildin
this recipe and the next. Then, activate the environment, as follows:

• Use the following commands in Linux:

$ cd ~/virtualenvs/
$ virtualenv
--no-site-packages chp09-env