Locator.php

<?php

class Locator extends Page {
	
	private static $db = array(
		'AutoGeocode' => 'Boolean',
		'ModalWindow' => 'Boolean',
        'Unit' => 'Enum("km,m","m")'
	);

    private static $has_many = array(
        'Locations' => 'Location'
    );
	
	private static $defaults = array(
		'AutoGeocode' => true
	);
	
	private static $singular_name = "Locator";
    private static $plural_name = "Locators";
    private static $description = 'Find locations on a map';
    
    public function getCMSFields() {
	    $fields = parent::getCMSFields();
	    
	    // Locations Grid Field
		$config = GridFieldConfig_RecordEditor::create();
        $locations = $this->Locations();
	    $fields->addFieldToTab("Root.Locations", GridField::create("Locations", "Locations", $locations, $config));
	    
	    // Location categories
	    $config = GridFieldConfig_RecordEditor::create();
	    $fields->addFieldToTab("Root.Categories", GridField::create("Categories", "Categories", LocationCategory::get(), $config));

	    // Settings
	    $fields->addFieldsToTab('Root.Settings', array(
	    	HeaderField::create('DisplayOptions', 'Display Options', 3),
            OptionsetField::create('Unit', 'Unit of measure', array('km' => 'Kilometers', 'm' => 'Miles')),
	    	CheckboxField::create('AutoGeocode', 'Auto Geocode - Automatically filter map results based on user location')
				->setDescription('Note: if any locations are set as featured, the auto geocode is automatically disabled.'),
	    	CheckboxField::create('ModalWindow', 'Modal Window - Show Map results in a modal window')
	    ));

		$this->extend('updateCMSFields', $fields);
	    
	    return $fields;
    }

	public static function getLocations($filter = array(), $exclude = array()){
		$filter['ShowInLocator'] = true;
		return Location::get()
			->exclude($exclude)
			->exclude('Lat', 0)
			->filter($filter);
	}

	public function getAreLocations(){
		return self::getLocations();
	}
    public function getMultipleLocators(){
        return (Locator::get()->count() > 1) ? true : false;
    }

    //TODO implement this on delete, not unpublish as it is now
    /*public function onBeforeDelete(){
        $locations = Location::get()->filter(array('LocatorID' => $this->ID));
        foreach($locations as $location){
            $location->LocatorID = 0;
            $location->write();
        }
        parent::onBeforeDelete();
    }*/

}

class Locator_Controller extends Page_Controller {

	// allowed actions
	private static $allowed_actions = array('xml');
	
	// Set Requirements based on input from CMS
	public function init() {
		parent::init();

		$themeDir = SSViewer::get_theme_folder();

		Requirements::javascript('framework/thirdparty/jquery/jquery.js');
		if(Locator::getLocations()){
			Requirements::javascript('http://maps.google.com/maps/api/js?sensor=false');
			Requirements::javascript('locator/thirdparty/handlebars/handlebars-v1.3.0.js');
			Requirements::javascript('locator/thirdparty/jquery-store-locator/js/jquery.storelocator.js');
		}
		
		Requirements::css('locator/css/map.css');

		$featured = (Locator::getLocations(array('Featured' => 1))->count() > 0) ?
			'featuredLocations: true' :
			'featuredLocations: false';

		// map config based on user input in Settings tab
		// AutoGeocode or Full Map
		$load = ($this->data()->AutoGeocode) ?
			'autoGeocode: true, fullMapStart: false,' :
			'autoGeocode: false, fullMapStart: true, storeLimit: 1000, maxDistance: true,';

		$absoluteBase = getcwd();//get current working dir
		$base = str_replace('/framework','',$absoluteBase);//remove framework if .htaccess is working
		$themePath = $base."/".$themeDir;

		$listTemplatePath = (file_exists($themePath . '/templates/location-list-description.html')) ?
			$themeDir . '/templates/location-list-description.html' :
			'locator/templates/location-list-description.html';
		$infowindowTemplatePath = (file_exists($themePath . '/templates/infowindow-description.html')) ?
			$themeDir . '/templates/infowindow-description.html' :
			'locator/templates/infowindow-description.html';

		// in page or modal
		$modal = ($this->data()->ModalWindow) ? 'modalWindow: true' : 'modalWindow: false';

        $kilometer = ($this->data()->Unit == 'km') ? 'lengthUnit: "km"' : 'lengthUnit: "m"';

		// init map
        if(Locator::getLocations()) {
            Requirements::customScript("
                $(function($) {
                  $('#map-container').storeLocator({
                    " . $load . "
                    dataLocation: '" . $this->Link() . "xml.xml',
                    listTemplatePath: '" . $listTemplatePath . "',
                    infowindowTemplatePath: '" . $infowindowTemplatePath . "',
                    originMarker: true,
                    " . $modal . ",
                    " . $featured . ",
                    slideMap: false,
                    zoomLevel: 0,
                    distanceAlert: 120,
                    formID: 'Form_LocationSearch',
                    inputID: 'Form_LocationSearch_address',
                    categoryID: 'Form_LocationSearch_category',
                    distanceAlert: -1,
                    " . $kilometer . "
                  });
                });
            ");
        }

	}		
	
	/**
	 * Find all locations for map
	 * 
	 * By default, will return a XML feed of all locations marked "show in locator".
	 * 
	 * If Locator::set_datasource('http:www.example.com') is set in _config.php, Locator will look 
	 * for a JSON feed and return the results.
	 * 
	 * @access public
	 * @return XML file
     * @todo throw exception if no get var in url and multiple locator pages
	 */
	public function xml(SS_HTTPRequest $request) {
        $filter = array();
        if($this->data()->getMultipleLocators()){
            if($request->getVar('locatorID')){
                $filter['LocatorID'] = $request->getVar('locatorID');
            }
        }
		$Locations = Locator::getLocations($filter);
			
		return $this->customise(array(
			'Locations' => $Locations
		))->renderWith('LocationXML');
		
	}	
	
	
	/**
	 * LocationSearch form.
	 *
	 * Search form for locations, updates map and results list via AJAX
	 * 
	 * @access public
	 * @return Form
	 */
	public function LocationSearch() {
		$fields = FieldList::create(
			$address = TextField::create('address', '')
		);
		$address->setAttribute('placeholder', 'address or zip code');
		
		if (LocationCategory::get()->Count() > 0) {

            $filter = ($this->data()->getMultipleLocators()) ? array('LocatorID' => $this->data()->ID) : array();
			$locals = Locator::getLocations($filter, $exclude = array('CategoryID' => 0));
			//debug::show($locals);
			$categories = ArrayList::create();

			foreach($locals as $local){
				$categories->add($local->Category());
			}

			if($categories->count()>0){
				$fields->push(
					DropdownField::create(
						'category',
						'',
						$categories->map('Title', 'Title')
					)->setEmptyString('Select Category'));
			}
		}
		
		$actions = FieldList::create(
			FormAction::create('', 'Search')
		);
		
		return Form::create($this, 'LocationSearch', $fields, $actions);
		
	}
	
}