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seo.php
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<?php
/**
* SEO v2.3.2
*
* This plugin adds an SEO Tab to every pages for managing SEO data.
*
* Licensed under the MIT license, see LICENSE.
*
* @package SEO
* @version 2.1.0
* @link <https://github.com/paulmassen/grav-plugin-seo>
* @author Paul Massendari <[email protected]>
* @copyright 2017, Paul Massendari
* @license <http://opensource.org/licenses/MIT> MIT
*/
namespace Grav\Plugin;
use Grav\Common\Plugin;
use Grav\Common\Page\Page;
use Grav\Common\Data\Blueprints;
use Grav\Common\Page\Pages;
use RocketTheme\Toolbox\Event\Event;
use Grav\Common\Grav;
use Grav\Common\Page\Media;
use Grav\Common\Helpers\Exif;
use Grav\Common\Page\Medium\AbstractMedia;
use Grav\Common\Iterator;
/**
* SEO Plugin
*
* This plugin adds an user-friendly SEO tab for your user to manage metadata tags
* and appearance on Search Engine Results and Social Networks.
* $reader->read('/path/to/file');
*/
class seoPlugin extends Plugin
{
/** -------------
* Public methods
* --------------
*/
/**
* Return a list of subscribed events.
*
* @return array The list of events of the plugin of the form
* 'name' => ['method_name', priority].
*/
public static function getSubscribedEvents()
{
return [
'onPluginsInitialized' => ['onPluginsInitialized', 0],
'onPageInitialized' => ['onPageInitialized', 0],
// 'onPageContentRaw' => ['onPageContentRaw', 0],
// 'onBlueprintCreated' => ['onBlueprintCreated', 0]
];
}
public function array_filter_recursive( array $array, callable $callback = null ) {
$array = is_callable( $callback ) ? array_filter( $array, $callback ) : array_filter( $array );
foreach ( $array as &$value ) {
if ( is_array( $value ) ) {
$myfunc = '$this->' . __FUNCTION__;
$value = $this->array_filter_recursive($value);
}
}
return $array;
}
private function seoGetimage($imageurl){
$imagedata = [];
$pattern = '~((\/[^\/]+)+)\/([^\/]+)~';
$replacement = '$1';
$fixedurl = preg_replace($pattern, $replacement, $imageurl);
$imagename = preg_replace($pattern, '$3', $imageurl);
$imgarray = $this->grav['page']->find($fixedurl)->media()->images();
$keyimages = array_keys($imgarray);
$imgkey = array_search($imagename, $keyimages);
$keyvalue = $keyimages[$imgkey];
//$imgkey = array_shift($imgarray);
$imgobject = $imgarray[$keyvalue];
$im = getimagesize($imgobject->path());
$imagedata = [
'width' => "$im[0]",
'height' => "$im[1]",
'url' => $imgobject->url(),
];
return $imagedata;
}
private function cleanMarkdown($text){
$text=strip_tags($text);
$rules = array (
'/{%[\s\S]*?%}[\s\S]*?/' => '', // remove twig include
'/<style(?:.|\n|\r)*?<\/style>/' => '', // remove style tags
'/<script[\s\S]*?>[\s\S]*?<\/script>/' => '', // remove script tags
'/(#+)(.*)/' => '\2', // headers
'/(<|<)!--\n((.*|\n)*)\n--(>|\>)/' => '', // comments
'/(\*|-|_){3}/' => '', // hr
'/!\[([^\[]+)\]\(([^\)]+)\)/' => '', // images
'/\[([^\[]+)\]\(([^\)]+)\)/' => '\1', // links
'/(\*\*|__)(.*?)\1/' => '\2', // bold
'/(\*|_)(.*?)\1/' => '\2', // emphasis
'/\~\~(.*?)\~\~/' => '\1', // del
'/\:\"(.*?)\"\:/' => '\1', // quote
'/```(.*)\n((.*|\n)+)\n```/' => '\2', // fence code
'/`(.*?)`/' => '\1', // inline code
'/(\*|\+|-)(.*)/' => '\2', // ul lists
'/\n[0-9]+\.(.*)/' => '\2', // ol lists
'/(>|\>)+(.*)/' => '\2', // blockquotes
);
$text=str_replace(".\n", '.', $text);
$text=str_replace("\n", '. ', $text);
$text=str_replace('"', '', $text);
$text=str_replace('<p', '', $text);
$text=str_replace('</p>', '', $text);
foreach ($rules as $regex => $rep) {
if (is_callable ( $rep)) {
$text = preg_replace_callback ($regex, $rep, $text);
} else {
$text = preg_replace ($regex, $rep, $text);
}
}
return substr($text,0,320);
// htmlspecialchars($text, ENT_QUOTES, 'UTF-8');
}
/**
* Initialize configuration
*/
public function onPluginsInitialized()
{
// Set default events
$events = [
'onTwigTemplatePaths' => ['onTwigTemplatePaths', 0],
// 'onPageContentRaw' => ['onPageContentRaw', 0],
];
// Set admin specific events
if ($this->isAdmin()) {
$this->active = false;
$events = [
'onTwigTemplatePaths' => ['onTwigTemplatePaths', 0],
'onBlueprintCreated' => ['onBlueprintCreated', 0],
// 'onPageContentRaw' => ['onPageContentRaw', 0],
];
}
// Register events
$this->enable($events);
}
public function onPageInitialized()
{
$page = $this->grav['page'];
$config = $this->mergeConfig($page);
$content = strip_tags($page->content());
$assets = $this->grav['assets'];
$pattern = '~((\/[^\/]+)+)\/([^\/]+)~';
$replacement = '$1';
$outputjson = "";
$uri = $this->grav['uri'];
$route = $this->config->get('plugins.admin.route');
$microdata = [];
$meta = $page->metadata(null);
$cleanedMarkdown = $this->cleanMarkdown($page->content());
if (isset($page->header()->googletitle)) {
$page->header()->title = $page->header()->googletitle;
};
if (isset($page->header()->googledesc)) {
$meta['description']['name'] = 'description';
$meta['description']['content'] = $page->header()->googledesc;
} else {
$meta['description']['name'] = 'description';
$meta['description']['content'] = $cleanedMarkdown;
};
/**
* Set Twitter Metatags
*/
if (property_exists($page->header(),'twitterenable')) {
if ($page->header()->twitterenable == 'true') {
if (isset($config['twitterid'])) {
$meta['twitter:site']['name'] = 'twitter:site';
$meta['twitter:site']['property'] = 'twitter:site';
$meta['twitter:site']['content'] = $config->twitterid;
};
if (isset($page->header()->twittercardoptions)) {
$meta['twitter:card']['name'] = 'twitter:card';
$meta['twitter:card']['property'] = 'twitter:card';
$meta['twitter:card']['content'] = $page->header()->twittercardoptions;
} else {
$meta['twitter:card']['name'] = 'twitter:card';
$meta['twitter:card']['property'] = 'twitter:card';
$meta['twitter:card']['content'] = 'summary_large_image';
};
if (isset($page->header()->twittertitle)) {
$meta['twitter:title']['name'] = 'twitter:title';
$meta['twitter:title']['property'] = 'twitter:title';
$meta['twitter:title']['content'] = $page->header()->twittertitle;
} else {
$meta['twitter:title']['name'] = 'twitter:title';
$meta['twitter:title']['property'] = 'twitter:title';
$meta['twitter:title']['content'] = $page->title() . ' | ' . $this->config->get('site.title');
};
if (isset($page->header()->twitterdescription)) {
$meta['twitter:description']['name'] = 'twitter:description';
$meta['twitter:description']['property'] = 'twitter:description';
$meta['twitter:description']['content'] = $page->header()->twitterdescription;
} else {
$meta['twitter:description']['name'] = 'twitter:description';
$meta['twitter:description']['property'] = 'twitter:description';
$meta['twitter:description']['content'] = $cleanedMarkdown;
};
if (isset($page->header()->twittershareimg)) {
$meta['twitter:image']['name'] = 'twitter:image';
$meta['twitter:image']['property'] = 'twitter:image';
$twittershareimg = $page->header()->twittershareimg;
$imagedata = $this->seoGetimage($twittershareimg);
$meta['twitter:image']['content'] = $this->grav['uri']->base() . $imagedata['url'];
} elseif(!empty($page->media()->images())) {
$meta['twitter:image']['name'] = 'twitter:image';
$meta['twitter:image']['property'] = 'twitter:image';
$imgobject = $page->media()->images();
$getfirst = array_shift($imgobject);
$firstimage = $getfirst->url();
//$imagedata = $this->seoGetimage($firstimage);
$meta['twitter:image']['content'] = $this->grav['uri']->base() . $firstimage;
};
$meta['twitter:url']['name'] = 'twitter:url';
$meta['twitter:url']['property'] = 'twitter:url';
$meta['twitter:url']['content'] = $page->url(true);
}
}
if (property_exists($page->header(),'facebookenable')){
if ($page->header()->facebookenable == 'true') {
//$meta['og:sitename']['name'] = 'og:sitename';
$meta['og:site_name']['property'] = 'og:site_name';
$meta['og:site_name']['content'] = $this->config->get('site.title');
if (isset($page->header()->facebooktitle)) {
//$meta['og:title']['name'] = 'og:title';
$meta['og:title']['property'] = 'og:title';
$meta['og:title']['content'] = $page->header()->facebooktitle;
} else {
// $meta['og:title']['name'] = 'og:title';
$meta['og:title']['property'] = 'og:title';
$meta['og:title']['content'] = $page->title();
}
if (isset($config['facebookid'])) {
//$meta['twitter:site']['name'] = 'twitter:site';
$meta['fb:app_id']['property'] = 'fb:app_id';
$meta['fb:app_id']['content'] = $config->facebookid;
};
//$meta['og:type']['name'] = 'og:type';
$meta['og:type']['property'] = 'og:type';
$meta['og:type']['content'] = 'article';
// $meta['og:url']['name'] = 'og:url';
$meta['og:url']['property'] = 'og:url';
$meta['og:url']['content'] = $this->grav['page']->canonical(true);
if (isset($page->header()->facebookdesc)) {
//$meta['og:description']['name'] = 'og:description';
$meta['og:description']['property'] = 'og:description';
$meta['og:description']['content'] = substr($this->cleanMarkdown($page->header()->facebookdesc),0,320);
} else {
// $meta['og:description']['name'] = 'og:description';
$meta['og:description']['property'] = 'og:description';
$meta['og:description']['content'] = $cleanedMarkdown;
}
if (isset($page->header()->facebookauthor)) {
// $meta['article:author']['name'] = 'article:author';
$meta['article:author']['property'] = 'article:author';
$meta['article:author']['content'] = $page->header()->facebookauthor;
}
if (isset($page->header()->facebookimg)) {
// $meta['og:image']['name'] = 'og:image';
$meta['og:image']['property'] = 'og:image';
$facebookimg = $page->header()->facebookimg;
$imagedata = $this->seoGetimage($facebookimg);
$meta['og:image']['content'] = $this->grav['uri']->base() . $imagedata['url'];
} elseif(!empty($page->media()->images())) {
$meta['og:image']['property'] = 'og:image';
$imgobject = $page->media()->images();
$getfirst = array_shift($imgobject);
$firstimage = $getfirst->url();
//$imagedata = $this->seoGetimage($firstimage);
$meta['twitter:image']['content'] = $this->grav['uri']->base() . $firstimage;
$meta['og:image']['content'] = $this->grav['uri']->base() . $firstimage;
}
}
}
// Add metadata
$page->metadata($meta);
// Set Json-Ld Microdata
// Article Microdata
if (property_exists($page->header(),'musiceventenabled')){
if (($page->header()->musiceventenabled) and $this->config['plugins']['seo']['musicevent']) {
$musiceventsarray = $page->header()->musicevents;
if (count($musiceventsarray) > 0) {
foreach ($musiceventsarray as $event) {
if (isset($event['musicevent_performer'])){
foreach ($event['musicevent_performer'] as $artist){
$performerarray[] = [
'@type' => @$artist['performer_type'],
'name' => @$artist['name'],
'sameAs' => @$artist['sameAs'],
];
};
}
if (isset($event['musicevent_workPerformed'])){
foreach ($event['musicevent_workPerformed'] as $work){
$workarray[] = [
'name' => @$work['name'],
'sameAs' => @$work['sameAs'],
];
}
}
if (isset($event['musicevent_image'])){
$imageurl = $event['musicevent_image'];
$imagedata = $this->seoGetimage($imageurl);
$musiceventimage = [
'@type' => 'ImageObject',
'width' => $imagedata['width'],
'height' => $imagedata['height'],
'url' => $this->grav['uri']->base() . $imagedata['url'],
];
}
$microdata[] = [
'@context' => 'http://schema.org',
'@type' => 'MusicEvent',
'name' => @$event['musicevent_location_name'],
'location' => [
'@type' => 'MusicVenue',
'name' => @$event['musicevent_location_name'],
'address' => @$event['musicevent_location_address'],
],
'description' => @$event['musicevent_description'],
'url' => @$event['musicevent_url'],
'performer' => @$performerarray,
'workPerformed' => @$workarray,
'image' => @$musiceventimage,
'offers' => [
'@type' => 'Offer',
'price' => @$event['musicevent_offers_price'],
'priceCurrency' => @$event['musicevent_offers_priceCurrency'],
'url' => @$event['musicevent_offers_url'],
],
'startDate' => @date("c", strtotime($event['musicevent_startdate'])),
'endDate' => @date("c", strtotime($event['musicevent_enddate'])),
];
}
}
}
}
if (property_exists($page->header(),'eventenabled')){
if ($page->header()->eventenabled and $this->config['plugins']['seo']['event']) {
$eventsarray = @$page->header()->addevent;
if (count($eventsarray) > 0) {
foreach ($eventsarray as $event) {
$microdata[] = [
'@context' => 'http://schema.org',
'@type' => 'Event',
'name' => @$event['event_name'],
'location' => [
'@type' => 'Place',
'name' => @$event['event_location_name'],
'address' => [
'@type' => 'PostalAddress',
'addressLocality' => @$event['event_location_address_addressLocality'],
'addressRegion' => @$event['event_location_address_addressRegion'],
'streetAddress' => @$event['event_location_streetAddress'],
],
'url' => @$event['musicevent_location_url'],
],
'description' => @$event['musicevent_description'],
'offers' => [
'@type' => 'Offer',
'price' => @$event['event_offers_price'],
'priceCurrency' => @$event['event_offers_priceCurrency'],
'url' => @$event['event_offers_url'],
],
'startDate' => @date("c", strtotime($event['event_startDate'])),
'endDate' => @date("c", strtotime($event['event_endDate'])),
'description' => @$event['event_description'],
];
}
}
}
}
if (property_exists($page->header(),'personenabled')){
if ($page->header()->personenabled and $this->config['plugins']['seo']['person']) {
$personarray = @$page->header()->addperson;
if (count($personarray) > 0) {
foreach ($personarray as $person) {
$microdata[] = [
'@context' => 'http://schema.org',
'@type' => 'Person',
'name' => @$person['person_name'],
'address' => [
'@type' => 'PostalAddress',
'addressLocality' => @$person['person_address_addressLocality'],
'addressRegion' => @$person['person_address_addressRegion'],
],
'jobTitle' => @$person['person_jobTitle'],
];
}
}
}
}
if (property_exists($page->header(),'orgaenabled')){
if ($page->header()->orgaenabled and $this->config['plugins']['seo']['organization']) {
if (isset($page->header()->orga['founders'])){
foreach ($page->header()->orga['founders'] as $founder){
$founderarray[] = [
'@type' => 'Person',
'name' => @$founder['name'],
];
}
}
if (isset($page->header()->orga['similar'])){
foreach ($page->header()->orga['similar'] as $similar){
$similararray[] = $similar['sameas'];
}
}
if (isset($page->header()->orga['areaserved'])){
foreach ($page->header()->orga['areaserved'] as $areaserved){
$areaservedarray[] = $areaserved['area'];
}
}
if (isset($page->header()->orga['openingHours'])){
foreach ($page->header()->orga['openingHours'] as $hours){
$openingHours[] = $hours['entry'];
}
}
if (isset($page->header()->orga['offercatalog'])){
foreach ($page->header()->orga['offercatalog'] as $offer) {
if (array_key_exists('offereditem', $offer)) {
foreach ($offer['offereditem'] as $service) {
$offerarray[] = [
'@type' => 'OfferCatalog',
'name' => @$offer['offer'],
'description' => @$offer['description'],
'url' => @$offer['url'],
'image' => @$offer['image'],
'itemListElement' => [
'@type' => 'Offer',
'itemOffered' => [
'@type' => 'Service',
'name' => @$service['name'],
'url' => @$service['url'],
],
],
];
}
} else {
$offerarray[] = [
'@type' => 'OfferCatalog',
'name' => @$offer['offer'],
'description' => @$offer['description'],
'url' => @$offer['url'],
'image' => @$offer['image'],
];
}
}
}
if (property_exists($page->header(),'orgaratingenabled')){
if ($page->header()->orgaratingenabled){
$orgarating = [
'@type' => 'AggregateRating',
'ratingValue' => @$page->header()->orga['ratingValue'],
'reviewCount' => @$page->header()->orga['reviewCount'],
];
}
}
$microdata[] = [
'@context' => 'http://schema.org',
'@type' => 'Organization',
'name' => @$page->header()->orga['name'],
'legalname' => @$page->header()->orga['legalname'],
'taxid' => @$page->header()->orga['taxid'],
'vatid' => @$page->header()->orga['vatid'],
'areaServed' => @$areaservedarray,
'description' => @$page->header()->orga['description'],
'address' => [
'@type' => 'PostalAddress',
'streetAddress' => @$page->header()->orga['streetaddress'],
'addressLocality' => @$page->header()->orga['city'],
'addressRegion' => @$page->header()->orga['state'],
'postalCode' => @$page->header()->orga['zipcode'],
],
'telephone' => @$page->header()->orga['phone'],
'logo' => @$page->header()->orga['logo'],
'url' => @$page->header()->orga['url'],
'openingHours' => @$openingHours,
'email' => @$page->header()->orga['email'],
'foundingDate' => @$page->header()->orga['foundingDate'],
'aggregateRating' => @$orgarating,
'paymentAccepted' => @$page->header()->orga['paymentAccepted'],
'founders' => @$founderarray,
'sameAs' => @$similararray,
'hasOfferCatalog' => @$offerarray
];
}
}
if (property_exists($page->header(),'restaurantenabled')){
if ($page->header()->restaurantenabled and $this->config['plugins']['seo']['restaurant']) {
if (isset($page->header()->restaurant['image'])){
$imageurl = $page->header()->restaurant['image'];
$imagedata = $this->seoGetimage($imageurl);
$restaurantimage = [
'@type' => 'ImageObject',
'width' => $imagedata['width'],
'height' => $imagedata['height'],
'url' => $this->grav['uri']->base() . $imagedata['url'],
];
}
$microdata[] = [
'@context' => 'http://schema.org',
'@type' => 'Restaurant',
'name' => @$page->header()->restaurant['name'],
'address' => [
'@type' => 'PostalAddress',
'addressLocality' => @$page->header()->restaurant['address_addressLocality'],
'addressRegion' => @$page->header()->restaurant['address_addressRegion'],
'streetAddress' => @$page->header()->restaurant['address_streetAddress'],
'postalCode' => @$page->header()->restaurant['address_postalCode'],
],
'areaserved' => @$areaservedarray,
'servesCuisine' => @$page->header()->restaurant['servesCuisine'],
'priceRange' => @$page->header()->restaurant['priceRange'],
'image' => @$restaurantimage,
'telephone' => @$page->header()->restaurant['telephone'],
];
}
}
if (property_exists($page->header(),'productenabled')){
if ($page->header()->productenabled and $this->config['plugins']['seo']['product']) {
if (isset($page->header()->product['image'])){
$productimagearray = [];
$productimages = $page->header()->product['image'];
foreach ($productimages as $key => $value){
$imagearray = $productimages[$key];
foreach($imagearray as $newkey => $newvalue){
$imagedata = $this->seoGetimage($imagearray[$newkey]);
$productimage[] =
$this->grav['uri']->base() . $imagedata['url'];
};
};
$offers = $page->header()->product['addoffer'];
foreach ($offers as $key => $value){
$offer[$key] = [
'@type' => 'Offer',
'priceCurrency' => @$offers[$key]['offer_priceCurrency'],
'price' => @$offers[$key]['offer_price'],
'validFrom' => @$offers[$key]['offer_validFrom'],
'priceValidUntil' => @$offers[$key]['offer_validUntil'],
'availability' => @$offers[$key]['offer_availability'],
];
};
}
$microdata[] = [
'@context' => 'http://schema.org',
'@type' => 'Product',
'name' => @$page->header()->product['name'],
'category' => @$page->header()->product['category'],
'brand' => [
'@type' => 'Thing',
'name' => @$page->header()->product['brand'],
],
'offers' => $offer,
'description' => @$page->header()->product['description'],
'image' => @$productimage,
'aggregateRating' => [
'@type' => 'AggregateRating',
'ratingValue' => @$page->header()->product['ratingValue'],
'reviewCount' => @$page->header()->product['reviewCount'],
]
];
}
}
if (property_exists($page->header(),'articleenabled')){
if (isset($page->header()->article['headline'])){
$headline = $page->header()->article['headline'];
} else {
$headline = $page->title();
}
if ($page->header()->articleenabled and $this->config['plugins']['seo']['article']) {
$microdata['article'] = [
'@context' => 'http://schema.org',
'@type' => 'Article',
'headline' => @$headline ,
'mainEntityOfPage' => [
"@type" => "WebPage",
'url' => $this->grav['uri']->base(),
],
'articleBody' => @$this->cleanMarkdown($content),
'datePublished' => @date("c", $page->date()),
'dateModified' => @date("c", $page->modified()),
];
if (isset($page->header()->article['description'])) {
$microdata['article']['description'] = $page->header()->article['description'];
}
else {
$microdata['article']['description'] = substr($content,0,140);
};
if (isset($page->header()->article['author'])) {
$microdata['article']['author'] = $page->header()->article['author'];
};
if (isset($page->header()->article['publisher_name'])) {
$microdata['article']['publisher']['@type'] = 'Organization';
$microdata['article']['publisher']['name'] = @$page->header()->article['publisher_name'];
};
if (isset($page->header()->article['publisher_logo_url'])) {
$publisherlogourl = $page->header()->article['publisher_logo_url'];
$imagedata = $this->seoGetimage($publisherlogourl);
$microdata['article']['publisher']['logo']['@type'] = 'ImageObject';
$microdata['article']['publisher']['logo']['url'] = $this->grav['uri']->base() . $imagedata['url'];
$microdata['article']['publisher']['logo']['width'] = $imagedata['width'];
$microdata['article']['publisher']['logo']['height'] = $imagedata['height'];
};
if (isset($page->header()->article['image_url'])) {
$microdata['article']['image']['@type'] = 'ImageObject';
$imageurl = $page->header()->article['image_url'];
$imagedata = $this->seoGetimage($imageurl);
$microdata['article']['image']['url'] = $this->grav['uri']->base() . $imagedata['url'];
$microdata['article']['image']['width'] = $imagedata['width'];
$microdata['article']['image']['height'] = $imagedata['height'];
}
}
};
// Encode to json
/*foreach ($microdata as $key => $value){
if ($value === null){
unset($microdata[$key]);
}
}*/
// $microdata = array_map('array_filter', $microdata);
$microdata = $this->array_filter_recursive($microdata);
foreach ($microdata as $key => $value){
$jsonscript = PHP_EOL . '<script type="application/ld+json">' . PHP_EOL . json_encode($microdata[$key], JSON_UNESCAPED_SLASHES|JSON_PRETTY_PRINT ) . PHP_EOL . '</script>';
$outputjson = $outputjson . $jsonscript;
}
$outputjson = '</script>' . $outputjson . '<script>';
$this->grav['twig']->twig_vars['json'] = $outputjson;
$this->grav['twig']->twig_vars['myvar'] = $outputjson;
//Do not add to addInlineJs if there is no microdata
if($outputjson != "</script><script>"){
$assets->addInlineJs($outputjson, 100);
}
// return $outputjson;
}
/**
* Extend page blueprints with SEO configuration options.
*
* @param Event $event
*/
public function onBlueprintCreated(Event $event)
{
$newtype = $event['type'];
if (0 === strpos($newtype, 'modular/')) {
} else {
$blueprint = $event['blueprint'];
if ($blueprint->get('form/fields/tabs', null, '/')) {
$blueprints = new Blueprints(__DIR__ . '/blueprints/');
$extends = $blueprints->get($this->name);
$blueprint->extend($extends, true);
}
}
}
public function onTwigTemplatePaths()
{
$this->grav['twig']->twig_paths[] = __DIR__ . '/templates';
}
}