Location field and widget for Django. It supports Google Maps, OpenStreetMap and Mapbox

Caio Ariede

Last update: Dec 29, 2022

Related tags

Django django-location-field

Overview

django-location-field

Let users pick locations using a map widget and store its latitude and longitude.

Stable version: django-location-field==2.1.0
Documentation: https://django-location-field.readthedocs.io/en/latest/
License: MIT

Status

Tests are performed with Python 2 and 3, Django 1.11 and 2, and SpatiaLite.

Features

Support for multiple map engines, like Google Maps, OpenStreetMap and Mapbox.
Support for multiple search engines, like Google, Nominatim, Yandex and Addok.
Works with both Spatial and non-Spatial databases.

Compatibility

Django >= 1.11
Python 2.7, 3.6, 3.7

Spatial Databases

PostGIS
SpatiaLite

Installation

Install through pip (or manually place it on your PYTHONPATH).

pip install django-location-field
Add location_field.apps.DefaultConfig to INSTALLED_APPS your settings.py file

For example, PostGIS:

https://docs.djangoproject.com/en/dev/ref/contrib/gis/install/postgis/

Basic usage (using Spatial Database)

from django.contrib.gis.db import models
from django.contrib.gis.geos import Point
from location_field.models.spatial import LocationField

class Place(models.Model):
    city = models.CharField(max_length=255)
    location = LocationField(based_fields=['city'], zoom=7, default=Point(1.0, 1.0))

Basic usage (without Spatial Database)

from django.db import models
from location_field.models.plain import PlainLocationField

class Place(models.Model):
    city = models.CharField(max_length=255)
    location = PlainLocationField(based_fields=['city'], zoom=7)

Screenshot

Nick Frost has credit over the image used as logo for this project. CC BY

Comments

the map does not appear

Hi, since 3 days ago the map does not appear, and it does not throw me any errors in the google chrome console, any idea or where find error?

Django version 2.1.1, using settings 'mywebsite.settings' Starting development server at http://127.0.0.1:8000/ Quit the server with CONTROL-C. [19/Nov/2018 21:39:41] "GET /static/admin/css/dashboard.css HTTP/1.1" 200 412 [19/Nov/2018 21:39:41] "GET /static/admin/img/icon-changelink.svg HTTP/1.1" 200 380 [19/Nov/2018 21:39:41] "GET /static/admin/img/icon-addlink.svg HTTP/1.1" 200 331 Not Found: /robots.txt [2018-11-19 21:39:42,142] log: WARNING - Not Found: /robots.txt [19/Nov/2018 21:39:42] "GET /robots.txt HTTP/1.1" 404 4172 [19/Nov/2018 21:39:42] "GET /admin/ HTTP/1.1" 200 16892 [19/Nov/2018 21:39:46] "GET /admin/dlf_app/place/add/ HTTP/1.1" 200 10300 [19/Nov/2018 21:39:46] "GET /static/admin/js/inlines.js HTTP/1.1" 200 13813 [19/Nov/2018 21:39:46] "GET /static/location_field/js/form.js HTTP/1.1" 200 19650 [19/Nov/2018 21:39:46] "GET /admin/jsi18n/ HTTP/1.1" 200 7047 [19/Nov/2018 21:40:16] "GET /static/admin/img/inline-delete.svg HTTP/1.1" 200 560

opened by CARocha 15
Browser autocomplete creates incorrect point

Hi Team, thanks for creating a cool app.

I have found an issue recently where if browser autocomplete is used then the location field point is incorrect.

screenshot - good point created on typing

screenshot - bad point created on autocomplete (Note: the fields in yellow were the browser autocomplete fields)

I have <form ... autocomplete="off">... but a lot of browsers ignore this anyway.

Thanks for your assistance in advance.

opened by lukeaus 12
Issue when upgrade to 2.0.1

I just upgraded the library from 1.6 and got this error:

'Settings' object has no attribute 'LOCATION_FIELD'

Seems is not taking the default value since I don't have any LOCATION_FIELD setting.

opened by camilonova 7
Missing leaflet static files causing errors with ManifestStaticFilesStorage
When you're using the ManifestStaticFilesStorage, collectstatic fails because it can't find two files. Namely:

location_field/images/layers.png

location_field/images/layers-2x.png

The solution would be either to remove those lines from leaflet.css or include the images with the package.

Here's a relevant issue: https://github.com/evansd/whitenoise/issues/96
opened by mixxorz 7
install_requires shouldn't reference Django itself
Currently pip installing django-location-field downgrades Django itself:

$ pip install django-location-field Installing collected packages: Django, django-location-field Found existing installation: Django 1.9.2 Uninstalling Django-1.9.2: Successfully uninstalled Django-1.9.2 Successfully installed Django-1.8.9 django-location-field-1.6.1

Even if django-location-field really doesn't work on Django 1.9 this is still surprising behaviour. See similar discussions:

https://github.com/charettes/django-admin-enhancer/issues/23

https://github.com/carljm/django-model-utils/issues/183

(yeah - it's me each time ;-) )
opened by andybak 7
How to load static files?

I'm sure I'm missing the obvious here. My form displays a blank space where the map should go, essentially because the static files do not get loaded (or referenced for that matter) in my template. How should I link them? How should I configure the static files?

opened by JoseTomasTocino 6

max_length error

Django 1.9.1

from location_field.models.plain import PlainLocationField
...
city = models.ForeignKey(City, blank=True, null=True)
region = models.ForeignKey(Region, blank=True, null=True)
location = PlainLocationField('place',
                             based_fields=['city'],
                             zoom=7
                             )

When I try to makemigrations I'm got:

ERRORS:
trips.TripExpence.location: (fields.E121) 'max_length' must be a positive integer.

Second question: Name of city defined in another model and linked through ForeignKey. Is this will work?

And third: Can I set the place for location field using both entites: city and region?

opened by Guest007 6

location field map not working with bootstrap 4 modal

HI all,

I am using the forms inside a bootstrap 4 modal. The Map is not render in the modal.

Example code:

<html>
    <head>
       <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
        {{form.media}}
    </head>
    <body>
     <div class="modal fade" id="modal1" role="dialog">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                            {% for f in  form %}
                                <label for="{{ f.auto_id }}" class="bmd-label-static">{{ f.label }}</label>
                                {{ f }}
                            {% endfor %}
            </div></div></div>
    </body>
<script>
        $(document).ready(function (){
            $('#modal1').modal()
        })
    </script>
</html>

this code work:

<html>
    <head>
       <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
        {{form.media}}
    </head>
    <body>
         {% for f in  form %}
              <label for="{{ f.auto_id }}" class="bmd-label-static">{{ f.label }}</label>
              {{ f }}
         {% endfor %}
    </body>
</html>

I appreciate if you can help me solve this.

opened by Esteban108 5

Map is not rendering

When opening change form in admin map is blank. After changing city it's refreshed and renders correctly, after saving model it works correctly, problem exists only when opening model that wasn't edited through admin (it was imported). Dragging map or changing location field don't help.

I'm using postgis, and from location_field.models.spatial import LocationField Tested in django 2.2 and 1.10, with django-location-field==2.1.0

opened by Alexander3 5

Not compatible with Django 2.1

I did a basic install and added a PlainLocationField to my model, and now the admin crashes with:

TypeError: render() got an unexpected keyword argument 'renderer'

It seems on the Django side it is calling:

widget.render(
            name=self.html_initial_name if only_initial else self.html_name,
            value=self.value(),
            attrs=attrs,
            renderer=self.form.renderer,
        )

But the LocationWidget doesn't accept renderer as a keyword argument.

opened by carlmjohnson 5

Allow blank value for LocationField

Environment details

Python version: 2.7.3 Django version: 1.5.1 Django Location Field version: 84718c64e039c4ca2974b62e220b60b6db74cf12 (latest master checkout)

Problem

Currently the form explodes (both on validation and on rendering of the the field value) if you set field blank attribute to True, leave the value empty and save the model.

return func(*args, **kwargs)
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 989, in add_view
    if form.is_valid():
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/forms/forms.py", line 126, in is_valid
    return self.is_bound and not bool(self.errors)
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/forms/forms.py", line 117, in _get_errors
    self.full_clean()
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/forms/forms.py", line 272, in full_clean
    self._clean_fields()
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/forms/forms.py", line 287, in _clean_fields
    value = field.clean(value)
  File "/home/vagrant/.virtualenvs/foo/src/location-field/location_field/forms.py", line 32, in clean
    lat, lng = value.split(',')
ValueError: need more than 1 value to unpack

  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/template/debug.py", line 74, in render_node
    return node.render(context)
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/template/debug.py", line 87, in render
    output = force_text(output)
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/utils/encoding.py", line 99, in force_text
    s = s.__unicode__()
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/forms/forms.py", line 411, in __str__
    return self.as_widget()
  File "/home/vagrant/.virtualenvs/foo/local/lib/python2.7/site-packages/django/forms/forms.py", line 458, in as_widget
    return widget.render(name, self.value(), attrs=attrs)
  File "/home/vagrant/.virtualenvs/foo/src/location-field/location_field/widgets.py", line 14, in render
    lat, lng = value.split(',')
ValueError: need more than 1 value to unpack

This pull request fixes this and allows a blank value.

bug

opened by Kami 5

Mapbox doesn't work as map provider

Mapbox doesn't work as map provider since they deprecated classic styles: https://blog.mapbox.com/deprecating-studio-classic-styles-d8892ac38cb4 When I try to load map at the django admin panel, the map doesn't render correctly. Response to the request is: {"message":"Classic styles are no longer supported; see https://blog.mapbox.com/deprecating-studio-classic-styles-d8892ac38cb4 for more information"}

opened by parkhomchukp 0
How to update map marker with current location on the map
Good day,

We are using the library with this configuration

LOCATION_FIELD = { "map.provider": "openstreetmap", "search.provider": "nominatim", }

The model is using a PlainLocationField.

We need to allow the users to use their current location in the map. For this, we implemented this little script

function getLocation() { if ("geolocation" in navigator) { navigator.geolocation.getCurrentPosition(showPosition, error); } else { $("#location-message").show() } } function showPosition(position) { $("#id_location").val(position.coords.latitude + "," + position.coords.longitude) } function error(err) { $("#location-message").show() }

it is working fine, the latitude and longitude is automatically updated; however, the marker is not. How may we force the marker to move to the new coordinates?

We tried editing the coordinates directly and it is not working either; it seems that the marker updates the coordinates field but it does not work in the other way.

Thank you,
opened by jlariza 0

LocationField throws AttributeError because value is always None

Hello there. I have a strange behaviour with the LocationField in my forms.py. I guess i do something wrong, but have no idea what it is (maybe the problem is that i use crispy-forms?)

I have a Spatial LocationField in my model and added it also to my Create-Form.

forms.py

from location_field.forms.spatial import LocationField

class SomeCreateForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields['location'].initial = "2.0,2.0"

        self.helper = FormHelper()
        self.helper.form_tag = False
        self.helper.layout = Layout(
           ...
            LocationField("location"),
            ...
            Submit("create", "Create", css_class="some_class"),
        )

    class Meta:
        model = Place
        fields = (..., 'location', ...)

Problem:

When LocationField.clean() is called, the value is always None, which leads to a AttributeError. The initial-value gets propagated to self.initial in my case.

class LocationField(PlainLocationField):
    def clean(self, value):
        try:
            lat, lng = value.split(',')
            return Point(float(lng), float(lat))
        except ValueError:
            return None

So as a workaround i created a costum MyLocationField() where i add the initial value directly into the .clean() function. I am looking forward to any kind of help or advice here. Thank you!

opened by daMichaelB 0

Owner

Caio Ariede

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