I want to add a location field in django model which take location input by putting lattitude and longitude

Question

I also want to pick the location through Django REST API Through template..please suggest necessary django packages for it and how to write locationField in the Django Model

This is the picture that django location field exactly which I want to Add please see it

Answer 1

You can create the multiple inputs field subclassing MultiValueField:

class Location:
    def __init__(self, latitude, longitude):
        self.latitude = latitude
        self.longitude = longitude

class LocationField(MultiValueField):
    def __init__(self, *args, **kwargs):
        fields = (
            FloatField(max_value=90, min_value=-90),
            FloatField((max_value=90, min_value=-90)
        )
        super().__init__(*args, **kwargs)


    def compress(self, data_list):
        latitude, longitude = data_list
        return Location(latitude, longitude)

As for the second question, sorry, but it's very unclear what you are asking for.

Answer 2

I will try to be precise, I have build one similar project. As you described in image in the link. The following would do the job. Make these changes in settings.py

'django.contrib.gis.db.backends.postgis',

Install this package https://pypi.org/project/django-map-widgets/ Add the below lines in Installed Apps:

    'django.contrib.gis',
    'mapwidgets'

Add these variables:

GOOGLE_MAP_API_KEY = "Create a google_map_api_key_and_past_it_here"

MAP_WIDGETS = {
    "GOOGLE_MAP_API_KEY": "Create a google_map_api_key_and_past_it_here"
}

In the models.py:

from django.contrib.gis.db import models
from django.contrib.gis.geos import Point

class Stack(models.Model):
    location = models.PointField(geography=True, spatial_index=True)

In forms.py:

from django.contrib.gis import forms as gis_forms
from django.contrib.gis.db import models as gis_models
from mapwidgets.widgets import GooglePointFieldWidget

class GoogleAddressForm(gis_forms.ModelForm):
    location = gis_forms.PointField(
        widget=widgets.GooglePointFieldWidget(
            ),
        )
    class Meta:
        model = Point
        fields = "__all__"
        formfield_overrides = {
            gis_models.PointField: {"widget": widgets.GooglePointFieldWidget()}
        }

In view simply render the template and pass the form in context. In template using {{form.location}} would render the exact image with all those functionalities.