Hello devs, In this blog we'll learn about storing user location in django with the longitude and latitude and for that we will use GeoDjango, Django provides a framework called GeoDjango, and with the help of GeoDjango we can store the user location parameters (Latitude and Longitude), and point the user location on map in django admin.
So, basically I'm storing the user location and the parameter in django while signup or user creation, and with the help of that we can know the user exact location.
and for storing the user location with django, we are using Postgresql database, which provides postgis extension, and supports the user location functionality, and I'm using Mac, so, please manage the Postgis path and extension according to your OS, so let's start code now:-
Post link for source code
How To Store Users Location In Django Using Geodjango pythondjangogeek.com Geo Django and Postgresql Installation
brew install postgres brew install postgis or
download the postgres app from this link:-
https://postgresapp.com/downloads.html Installing Geospatial Libraries
brew install gdal brew install geos brew install libgeoip add library path in django setting.py file
GDAL_LIBRARY_PATH = '/opt/homebrew/Cellar/gdal/3.8.3/lib/libgdal.dylib' GEOS_LIBRARY_PATH = '/opt/homebrew/Cellar/geos/3.12.1/lib/libgeos_c.dylib' Setting up Django project
django-admin startproject userlocation and now mention postgis in settings.py
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'django.contrib.gis', 'rest_framework.authtoken', 'rest_framework', 'users' ] Now, we will create models.py
from django.contrib.auth.models import User from django.contrib.gis.db import models class Customer(models.Model): user = models.OneToOneField(User, on_delete=models.CASCADE, related_name='user_profile') name = models.CharField(max_length=100) location = models.PointField(blank=True, null=True) longitude = models.FloatField() latitude = models.FloatField() def __str__(self): return self.name ww'll store user longitude and latitude and also location with the PointField, this field will show the map on Django admin like this:-
Admin.py file
from django.contrib import admin from .models import Customer from django.contrib.gis.admin import OSMGeoAdmin @admin.register(Customer) class CustomerAdmin(OSMGeoAdmin): list_display = ['id', 'name', 'user', 'location', 'longitude', 'latitude'] search_fields = ['name', 'user__username'] Serializers.py file
from rest_framework import serializers from django.contrib.auth.models import User from .models import Customer class UserSerializer(serializers.ModelSerializer): class Meta: model = User fields = ['username', 'password', 'email'] class CustomerSerializer(serializers.ModelSerializer): user = UserSerializer() class Meta: model = Customer fields = ['id', 'user', 'name', 'location', 'longitude', 'latitude'] Views.py file
from rest_framework import generics from rest_framework.response import Response from rest_framework import status from django.contrib.auth.models import User from django.contrib.auth import authenticate, login from rest_framework.authtoken.models import Token from django.contrib.gis.geos import Point from .models import Customer from .serializers import CustomerSerializer, UserSerializer class CustomerListCreateView(generics.ListCreateAPIView): queryset = Customer.objects.all() serializer_class = CustomerSerializer def create(self, request, *args, **kwargs): user_serializer = UserSerializer(data=request.data.get('user')) customer_serializer = self.get_serializer(data=request.data) user_serializer.is_valid(raise_exception=True) customer_serializer.is_valid(raise_exception=True) # Create User instance user = User.objects.create_user(**user_serializer.validated_data) # Extract latitude and longitude from the request data latitude = request.data.get('latitude', None) longitude = request.data.get('longitude', None) # Check if both latitude and longitude are present if latitude is not None and longitude is not None: # Create a Point object with the given latitude and longitude location = Point(float(longitude), float(latitude)) customer_serializer.validated_data['location'] = location # Create Customer instance customer_serializer.validated_data['user'] = user self.perform_create(customer_serializer) # Create and return token token, created = Token.objects.get_or_create(user=user) headers = self.get_success_headers(customer_serializer.data) return Response({'token': token.key, **customer_serializer.data}, status=status.HTTP_201_CREATED, headers=headers) class CustomerDetailView(generics.RetrieveUpdateDestroyAPIView): queryset = Customer.objects.all() serializer_class = CustomerSerializer class UserLoginView(generics.CreateAPIView): serializer_class = UserSerializer def create(self, request, *args, **kwargs): username = request.data.get('username', '') password = request.data.get('password', '') user = authenticate(request, username=username, password=password) if user is not None: login(request, user) token, created = Token.objects.get_or_create(user=user) serializer = UserSerializer(user) return Response({'token': token.key, **serializer.data}) else: return Response({'detail': 'Invalid credentials'}, status=status.HTTP_401_UNAUTHORIZED) URLs.py file
from django.urls import path from .views import CustomerListCreateView, CustomerDetailView, UserLoginView urlpatterns = [ path('customers/', CustomerListCreateView.as_view(), name='customer-list-create'), path('customers/<int:pk>/', CustomerDetailView.as_view(), name='customer-detail'), path('login/', UserLoginView.as_view(), name='user-login'), ] so, that's how you can implement the user location in django using GeoDjango, and you can connect with me.
Thank You.
Shivam Rohilla | Python Developer
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