extensions-Spatial-extension.php

<?php

namespace Spatial;

class Extension extends \Bolt\BaseExtension
{

    function info()
    {
        $data = array(
            'name' => "Add spatial support",
            'description' => "Adds spatial support to bolt",
            'keywords' => "Spatial",
            'author' => "Koen Schmeets",
            'link' => "http://www.koenschmeets.nl",
            'version' => "0.1",
            'required_bolt_version' => "1.0.2",
            'highest_bolt_version' => "1.2",
            'type' => "General",
            'first_releasedate' => "2014-03-30",
            'latest_releasedate' => "2014-03-30",
            'dependencies' => "",
            'priority' => 1
        );

        return $data;
    }

    function initialize()
    {
        $this->registerAutoloader();
        $this->registerFields();
        $this->registerViewPath();
        // $this->registerAssets();
    }

    function registerFields()
    {
        $this->addField('linestring', 'Spatial\Fields\GeometryField');
        $this->addField('point', 'Spatial\Fields\GeometryField');
    }

    // Somehow, addCSS and addJavascript don't seem to work
    //
    // function registerAssets()
    // {
    //     $this->addCSS('assets/leaflet/dist/leaflet.css');
    //     $this->addJavascript('assets/leaflet/dist/leaflet.js');
    //     $this->addCSS('assets/leaflet-draw/dist/leaflet.draw.css');
    //     $this->addJavascript('assets/leaflet-draw/dist/leaflet.draw.js');
    // }

    function registerAutoloader()
    {
        // NOTE THAT I PUT THE COMPOSER AUTOLOADER ON THE CONTAINER
        $this->app['autoloader']->add('Spatial\\', __DIR__ . '/src/');
    }

    function registerViewPath()
    {
        $this->app['twig.loader.filesystem']->addPath(__DIR__.'/views/');
    }

}

extensions-Spatial-src-Spatial-Fields-GeometryField.php

<?php

namespace Spatial\Fields;

use Spatial\GeometryParser;

class GeometryField extends \Bolt\Field {

	protected $doctrineType = 'CrEOF\Spatial\DBAL\Types\GeometryType';

	public function serialize($value)
	{
		$parser = GeometryParser::fromGeoJSON($value);

		return $parser->asSql();
	}

	public function unserialize($value)
	{
		if(empty($value) || substr($value, 0, 1) == "{")
		{
			return $value;
		}

		$parser = GeometryParser::fromBinary($value);

		return $parser->asGeoJSON();
	}

	public function validate($value)
	{
		$flashBag = $this->app['session']->getFlashBag();

		// if( ! $data = @json_decode($value))
		// 	$flashBag->set('error', 'Incorrect data: Unable to parse JSON ('.$value.')');
		// 	return false;
		// }

		if( ! $data->type)
		{
			$flashBag->set('error', 'Incorrect data: No \'type\' found in GeoJSON ('.json_encode($data).')');
			return false;
		}

		if( ! $data->coordinates)
		{
			$flashBag->set('error', 'Incorrect data: No \'coordinates\' found in GeoJSON ('.json_encode($data).')');
			return false;
		}

		return true;
	}

}