Placing markers on Google Map With Django - django

Question

I'm trying to place markers based on the latitude and longitude stored in a model on a Google Map using the API and HTML5 geolocation.
The issue is how to loop through the lat/lon info for each object stored within JavaScript tags using template keywords, which I don't believe can be done in Django.
I found a similar question here Adding Google Map Markers with DJango Template Tags in Javascript which I mildly modified and placed within a template – not a separate script file – but it doesn't seem to work:
function loadMarkers(){
{% for story in stories %}
var point = new google.maps.LatLng({{story.latitude}},{{story.longitude}});
var marker = new google.maps.Marker({
position: point,
map: map
});
{% endfor %}
}
Any insight on how to properly loop through items in a stored Django object with lat, lon info and place these on a Google Map using the API would be very appreciated.

Answer 1

I use django-geoposition to manage my geodata
from django.db import models
from geoposition.fields import GeopositionField
class Zone(models.Model):
name = models.CharField(max_length = 50 )
kuerzel = models.CharField(max_length = 3 )
kn_nr = models.CharField(max_length = 5 )
beschreibung = models.CharField(max_length = 300 )
adresse = models.CharField(max_length = 100 )
position = GeopositionField()
view.py
from geo.models import Zone
from django.shortcuts import render_to_response, get_object_or_404, redirect
def ShowZonen(request):
zone=Zone.objects.all()
return render_to_response('zonen.html', {"zone": zone})
def showZoneDetail(request, zone_id):
zone=Zone.objects.get(id=zone_id)
return render_to_response('zonendetail.html', {"zone": zone})
template
zonendetail.html
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var map;
function initialize() {
var mapDiv = document.getElementById('map-canvas');
map = new google.maps.Map(mapDiv, {
center: new google.maps.LatLng(48.208174,16.373819),
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
google.maps.event.addListenerOnce(map, 'tilesloaded', addMarkers);
}
function addMarkers() {
{% for mark in zone %}
var point = new google.maps.LatLng({{mark.position.latitude}},{{mark.position.longitude}});
var image = '{{ STATIC_PREFIX }}'+ 'checkmark.png';
var marker = new google.maps.Marker({
position: point,
map: map,
icon: image,
url: 'http://172.16.0.101:8882/zone/' + {{mark.id}},
title: '{{ mark.id }}',
});
marker['infowindow'] = new google.maps.InfoWindow({
content: "<h1>{{mark.name}}</h1> <br> {{ mark.name }} <p> {{ mark.name }}",
});
google.maps.event.addListener(marker, 'click', function() {
//window.location.href = this.url;
this['infowindow'].open(map, this);
});
google.maps.event.addListener(marker, 'mouseover', function() {
// this['infowindow'].open(map, this);
});
google.maps.event.addListener(marker, 'mouseout', function() {
// this['infowindow'].close(map, this);
});
{% endfor %}
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>