This is the backend service for the Service Map UI.
First, install the necessary Debian packages.
libpython3.4-dev virtualenvwrapper libyaml-dev libxml2-dev libxslt1-dev
You might need to start a new shell for the virtualenvwrapper commands to activate.
- Make a Python virtual environment.
mkvirtualenv -p /usr/bin/python3.4 smbackend
-
Install pip requirements.
pip install -r requirements.txt -
Setup the PostGIS database.
Please note we require PostgreSQL version 9.4 or higher
Local setup:
sudo su postgres
createuser -R -S -D -P smbackend
createdb -O smbackend -T template0 -l fi_FI.UTF-8 -E utf8 smbackend
echo "CREATE EXTENSION postgis;" | psql smbackend
echo "CREATE EXTENSION hstore;" | psql smbackend
Docker setup (modify as needed, starts the database on local port 8765):
docker run --name smbackend-psql -e POSTGRES_USER=smbackend -e POSTGRES_PASSWORD=smbackend -p 8765:5432 -d mdillon/postgis
# you'll need the hstore extension enabled:
echo "CREATE EXTENSION hstore;" | docker exec -i smbackend-psql psql -U smbackend
- Modify
local_settings.pyto contain the local database info.
DATABASES = {
'default': {
'ENGINE': 'django.contrib.gis.db.backends.postgis',
'HOST': '127.0.0.1',
'NAME': 'smbackend',
'USER': 'smbackend',
'PASSWORD': 'smbackend',
}
}
- Create database tables.
./manage.py syncdb
./manage.py migrate
If these commands fail with: django.core.exceptions.ImproperlyConfigured: GEOS is required and has not been detected.,
then install the GEOS library. On a Mac this can be achieved with HomeBrew:
brew install geos
- Import geo data.
./manage.py geo_import finland --municipalities
./manage.py geo_import helsinki --divisions
You can configure multilingual Elasticsearch-based search by including
something like the following in your local_settings.py:
import json
def read_config(name):
return json.load(open(
os.path.join(
BASE_DIR,
'smbackend',
'elasticsearch/{}.json'.format(name))))
HAYSTACK_CONNECTIONS = {
'default': {
'ENGINE': 'multilingual_haystack.backends.MultilingualSearchEngine',
},
'default-fi': {
'ENGINE': 'multilingual_haystack.backends.LanguageSearchEngine',
'BASE_ENGINE': 'multilingual_haystack.custom_elasticsearch_search_backend.CustomEsSearchEngine',
'URL': 'http://localhost:9200/',
'INDEX_NAME': 'servicemap-fi',
'MAPPINGS': read_config('mappings_finnish')['modelresult']['properties'],
'SETTINGS': read_config('settings_finnish')
},
'default-sv': {
'ENGINE': 'multilingual_haystack.backends.LanguageSearchEngine',
'BASE_ENGINE': 'multilingual_haystack.custom_elasticsearch_search_backend.CustomEsSearchEngine',
'URL': 'http://localhost:9200/',
'INDEX_NAME': 'servicemap-sv',
},
'default-en': {
'ENGINE': 'multilingual_haystack.backends.LanguageSearchEngine',
'BASE_ENGINE': 'multilingual_haystack.custom_elasticsearch_search_backend.CustomEsSearchEngine',
'URL': 'http://localhost:9200/',
'INDEX_NAME': 'servicemap-en',
},
}The error:
OSError: dlopen(/usr/local/lib/libgdal.dylib, 6): Symbol not found: _GEOSArea
Can be fixed by adding this to local_settings.py:
GDAL_LIBRARY_PATH = "/usr/local/lib/libgdal.dylib"
import ctypes
ctypes.CDLL(GDAL_LIBRARY_PATH)