Laravel and google maps : foreach latitude/longitude show marker or map

Question

I have a table locations with a latitude and longitude field.

For each location I want a new map (or better a new marker) that uses the latitude and longitude from the table locations to display a city on the map.

index action of controller :

public function index()
    {
        $locations = Location::all();

        $locations->location_latitude = Input::get('location_latitude');
        $locations->location_longitude = Input::get('location_longitude');

        return View::make('forecasts.index')
            ->with('locations', $locations);
    }

google map with marker :

function initialize() {

    var map_canvas = document.getElementById('map_canvas');

    var location = new google.maps.LatLng({{ $location->location_latitude }}, {{ $location->location_longitude }});

    var map_options = {
        center: location,
        zoom: 10,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    }

    var map = new google.maps.Map(map_canvas, map_options)

    var marker = new google.maps.Marker({
        position: location,
        map: map,
    });

    marker.setMap(map);

  }

  google.maps.event.addDomListener(window, 'load', initialize);

When I do this it only displays the city from the last inserted latitude/longitude :

@foreach($locations as $location)

   var location = new google.maps.LatLng({{ $location->location_latitude }}, {{ $location->location_longitude }});

@endforeach

Answer 1

It is probably because while looping through the collection you are not actually creating separate marker.

function initialize() {

    var map_canvas = document.getElementById('map_canvas');

    // Initialise the map
    var map_options = {
        center: location,
        zoom: 10,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    var map = new google.maps.Map(map_canvas, map_options)

    // Put all locations into array
    var locations = [
    @foreach ($locations as $location)
        [ {{ $location->location_latitude }}, {{ $location->location_longitude }} ]     
    @endforeach
    ];

    for (i = 0; i < locations.length; i++) {
        var location = new google.maps.LatLng(locations[i][0], locations[i][1]);

        var marker = new google.maps.Marker({
            position: location,
            map: map,
        }); 
    }

    // marker.setMap(map); // Probably not necessary since you set the map above

}