kinglozzer/silverstripegmapsobject

Add a Google Map (optionally with Streetview) to a DataObject or Page

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Type:silverstripe-vendormodule

2.0.0 2017-11-10 17:00 UTC

README

A module to add a Google Map (optionally with Streetview) to a DataObject or Page, with users able to specify a location marker in the CMS. No front-end implementation is provided, though simple examples are shown below.

By: Loz Calver - Bigfork Ltd.

Installation:

Composer:

require: "kinglozzer/silverstripegmapsobject": "^2"

Enable:

Apply the extension Kinglozzer\SilverStripeGMapsObject\Extension to the DataObject or page type that you require a map on and do a dev/build?flush=1.

Page:
  extensions:
    - Kinglozzer\SilverStripeGMapsObject\Extension

You'll then see the new 'Google Map' tab on your DataObject / Page edit form. You also need to specify your Google Maps API key in the 'Settings' area of the CMS before you'll be able to see the map.

Front-end Examples:

The co-ordinates (and heading/pitch if you're using Streetview) are stored in the following database fields:

  • Latitude
  • Longitude
  • Heading
  • Pitch

You'll need to give your JavaScript access to these properties, one method of doing this is as follows:

class PageController extends ContentController
{
    public function init()
    {
        parent::init();

        // Fetch the Google Maps API key from the site settings
        $key = SiteConfig::current_site_config()->GMapsAPIKey;
        Requirements::javascript('https://maps.googleapis.com/maps/api/js?key='.$key.'&sensor=false');

        Requirements::customScript(<<<JS
var gMap = {
    'lat': $this->Latitude,
    'lon': $this->Longitude,
    'heading': $this->Heading,
    'pitch': $this->Pitch
};
JS
        );
    }
}

Example JavaScript implementation:

// Assumes one div with the id "map"
var latLng = new google.maps.LatLng(gMap.lat,gMap.lon),
    map = new google.maps.Map(document.getElementById("map"), {
        center: latLng,
        zoom: 14,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    }),
    marker = new google.maps.Marker({
        position: latLng,
        map: map,
        title: 'My location'
    });

Example JavaScript implementation including Streetview:

// Assumes two divs, one with the id "map" and one with the id "street-view"
var panorama = new  google.maps.StreetViewPanorama(document.getElementById("street-view"), {
        position: new google.maps.LatLng(gMap.lat,gMap.lon),
        visible: true,
        pov: {
            heading: gMap.heading,
            pitch: gMap.pitch
        }
    });
    var map = new google.maps.Map(document.getElementById("map"), {
        center: new google.maps.LatLng(gMap.lat,gMap.lon),
        zoom: 14,
        mapTypeId: google.maps.MapTypeId.ROADMAP,
        streetViewControl: true,
        streetView: panorama
    });

    google.maps.event.addListener(panorama, "position_changed", function() {
        map.setCenter(panorama.getPosition());
    });