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Saving Longitude and Latitude to a user profile in Django – Twitter API

I was looking for a way to use HTML5 (and possibly JS) to save visitor/user Longitudnal & Latitudnal data to a database. I do not wish to use packages out there as they seem a bit outdated and may break my code in future considerting their own reliance on other APIs.

I know there is a way around using AJAX, but I clearly dont know and understand it well enough to implement it.

My ask of the learned Lords is – 1. Get Loc data 2. Send it to Python in dict or json or string format from where it can be further processed and saved.

Why you may ask – Good question. I would use it for displaying weather on the homepage and local twitter trends on a ‘logged-in’ page.

Any assistance would be appreciated.

Cheers!

My JS code is below:

    // Set up global variable
var result;

function showPosition() {
    // Store the element where the page displays the result
    result = document.getElementById("result");

    // If geolocation is available, try to get the visitor's position
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(successCallback, errorCallback);
        result.innerHTML = "Getting the position information...";
    } else {
        alert("Sorry, your browser does not support HTML5 geolocation.");
    }
};

// Define callback function for successful attempt
function successCallback(position) {
    result.innerHTML = [position.coords.latitude, position.coords.longitude];
}

// Define callback function for failed attempt
function errorCallback(error) {
    if (error.code == 1) {
        result.innerHTML = "You've decided not to share your position, but it's OK. We won't ask you again.";
    } else if (error.code == 2) {
        result.innerHTML = "The network is down or the positioning service can't be reached.";
    } else if (error.code == 3) {
        result.innerHTML = "The attempt timed out before it could get the location data.";
    } else {
        result.innerHTML = "Geolocation failed due to unknown error.";
    }
}

window.onload = showPosition;
Tags:

2

Answers


  1. 0

    In your JS code:

    function successCallback(position) {
    result.innerHTML = [position.coords.latitude, position.coords.longitude];
    $.post('your-python-endpoint-url', {
        latitude: position.coords.latitude,
        longitude: position.coords.longitude
    });
}

    In your python:

    def index(request):
    if request.is_ajax():
        if request.method == 'POST':
            print 'Raw Data: "%s"' % request.body   
    return HttpResponse("OK")

    Change the method name and body according to your needs and don’t forget to define a route in django.

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  2. 0

    what works for me:

    First I recommend you to use models.PointField on your model.

    When I obtain the long/lat data on FE, I send it as form-data in the following format eg:

    "{"type":"Point","coordinates":[14.215641,50.0100000001]}"

    Then I map it to the model field and save it. It saves well and later I am able to query google geocoder or anything with it.

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