Add django gis extension

backend/Dockerfile

@@ -6,6 +6,16 @@ ENV DJANGO_SUPERUSER_PASSWORD=admin
 
 WORKDIR /app
 
+RUN apt update && \
+    apt install -y --no-install-recommends \
+        gdal-bin \
+        libxml2 libxml2-dev gettext \
+        libxslt1-dev libjpeg-dev libpng-dev libpq-dev libgdal-dev \
+        software-properties-common g++ \
+        zlib1g-dev libgeos-dev libproj-dev \
+        sqlite3 spatialite-bin libsqlite3-mod-spatialite && \
+    apt clean
+
 COPY ./requirements.txt /app/requirements.txt
 
 RUN pip install -U --no-cache-dir -r requirements.txt

backend/right_tree/settings.py

@@ -37,6 +37,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'django.contrib.gis',
 
     'rest_framework',
     'corsheaders',
@@ -81,7 +82,7 @@ WSGI_APPLICATION = 'right_tree.wsgi.application'
 
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.postgresql',
+        'ENGINE': 'django.contrib.gis.db.backends.postgis',
         'NAME': 'right_tree',
         'USER': 'postgres',
         'PASSWORD': 'postgres',