global-logic.php

<?php
defined('_JEXEC') or die('Restricted access');


/*
 *	=======================================================================
	+ GET META DATA
	-----------------------------------------------------------------------
	+ SETTINGS
	+ SET IMAGE + GALLERY FIELDS **
	-----------------------------------------------------------------------
	OPEN GRAPH META TAGS
	-----------------------------------------------------------------------
	+ SET CUSTOM PAGE TITLE ($page_title)
	+ SET META DESCRIPTION
	+ BANNER AS H1 TITLE ($showH1Banner) 
	-----------------------------------------------------------------------		
	+ SEF ($sef)
 	=======================================================================
 
 
 	+ OPEN GRAPH META TAGS SOCIAL SHARES
	https://blog.kissmetrics.com/open-graph-meta-tags/
	https://moz.com/blog/meta-data-templates-123
  
  
  	//TO AVOID DOUBLE META OG:DESCRIPTION - set your flexi description plugin Social suggest to no.
 	Social > Suggest field to listings -> No
  	https://i.imgur.com/qYKzKul.png

	
	======================================================================
*/

/*  + SETTINGS
	======================================================================*/
$document = JFactory::getDocument();
$app  = JFactory::getApplication();

//TEMPLATE PATH
$tpath  = JURI::base(true) . '/templates/' . $app->getTemplate() . '/';
$tmpl_path = JPATH_BASE . '/templates/' . $app->getTemplate() . '/';

//$app = JFactory::getApplication('site');
$template = $app->getTemplate(true);


/* + SET IMAGE + GALLERY FIELDS
======================================================================*/
$galleryFieldName = 'gallery';
$galleryfield_id = 67;
$imagefield = 32;





/* + COMPANY NAME + LOGO = Set in Joomla Site Template
	======================================================================*/
//


$company_brand_name = '';
$sitename = $app->get('sitename');

if ($lang->getTag() == 'zh-TW') {
	$company_brand_name =  $template->params->get('company_brand_name_zh');
} else {
	$company_brand_name =  $template->params->get('company_brand_name_en');
}




if ($company_brand_name == '') {
	$company_brand_name = $sitename;
}



//TEST COMPANY NAME
//echo $company_brand_name;


//SET META SITENAME
$document->setMetaData('og:site_name', "$company_brand_name", 'property');


/* +  META FIELDS
	======================================================================*/

// PUBLISHER LOGO (112px x 112px) ?
// https://developers.google.com/search/docs/appearance/structured-data/logo
$company_logo_image_name = '';
if ($template->params->get('logoFile')) {
	$company_logo_image_name = JURI::base() . $template->params->get('logoFile');
}


//AUTHOR
$author = $this->item->author;

$datePublished = "";
//PUBLISHED DATE
if (!empty($this->item->created)) {
	$datePublished = date('Y-m-d', strtotime($this->item->created));
	$datePublished = '"datePublished": "' . $datePublished . '",';
}


$dateModified = "";
//MODIFIED DATE
if (!empty($this->item->modified)) {
	$dateModified = date('Y-m-d', strtotime($this->item->modified));
	$dateModified = '"dateModified": "' . $dateModified . '",';
}

/* +  URLS
	======================================================================*/

//SITE URL:
$siteURL = 'http' . (empty($_SERVER['HTTPS']) ? '' : 's') . '://' . $_SERVER['SERVER_NAME'];


/* +  SET CUSTOM PAGE TITLE
	======================================================================*/
//$getBrowserTitle = '';

//$getBrowserTitle = $this->params->get('flexi_browser_title');
$getBrowserTitle = $this->params->get('custom_ititle');

if ($getBrowserTitle != '') {
	$page_title = $getBrowserTitle;
} else {
	$page_title = $document->getTitle();
}

//GET CURRENT PAGE URL;
$current_page_url = JURI::current();

// GET OPENGRAPH TYPE:
//https://developers.facebook.com/docs/reference/opengraph/
$fb_og_type = $this->params->get('fb_og_type');



//SET URL
$document->setMetaData('og:url', "$current_page_url", 'property');
$document->setMetaData('og:type', "$fb_og_type", 'property');
$document->setMetaData('twitter:card', "summary_large_image");

//SET TITLE
$document->setMetaData('og:title', "$page_title", 'property');
$document->setMetaData('twitter:title', "$page_title");
$document->setTitle($page_title);


/* + SET DESCRIPTION ($intro_text)
	======================================================================*/

//SET INTROTEXT LENGTH
$intro_text_cut_text = $this->params->get('intro_text_cut_text', '160');

$intro_text = JHtmlString::truncate($item->introtext, $intro_text_cut_text, true, false);
$intro_text = str_replace('...', '', $intro_text);



//G
//$meta_description = $document->getMetaData("description");





/* + SET META DESCRIPTION 
	======================================================================
	Pulls From and Order:
	1) Menu
	2) Item
	3) Intro text ($intro_text)
	4) Site
	5) Use Intro Text as Meta Description (see item.xml)
	======================================================================*/

//1) META DESCRIPTION FUNCTION
function setMetaData($document, $description)
{
	$document->setDescription($description);
	$document->setMetaData('twitter:description', $description);
	$document->setMetaData('og:description', $description, 'property');
	$document->setMetaData('description', $description, 'itemprop');

	return $description;
}

//2) SET META DESCRIPTION ORDERING
$candidates = [
	$menu->getParams()->get('menu-meta_description'),  // Meta description from menu
	$item->metadesc,  // Item meta description
	($this->params->get('use_intro_meta_desc') == 1) ? $intro_text : null,  // Intro text as meta (if enabled)
	$app->getCfg('MetaDesc')  // Global site meta description
];

//3) FIND FIRST NON-EMPTY CANDIDATE + USE AS META DESCRIPTION

$json_description = '';

foreach ($candidates as $candidate) {
	if (!empty($candidate)) {
		$json_description = setMetaData($document, $candidate);
		break;
	}
}

//echo $json_description;


/* + IMAGE FIELD
	 ======================================================================*/

$imageURL = '';
$JSONimageURL = '';
if (isset($item->fieldvalues[$imagefield])) {
	if (isset($this->item->fieldvalues[$this->item->fields['image']->id])) {
		$imageURL = $siteURL . $item->fields['image']->{"display_large_src"};
		$document->setMetaData('twitter:image', "$imageURL");
		$document->setMetaData('og:image', "$imageURL", 'property');

		$JSONimageURL =
			'"image": ["' . $imageURL . '"],';
	}
}


/* + CONVERT BANNER INTO JS
	======================================================================*/
$showH1Banner = '';

$showH1Banner = $this->params->get('show_h1_banner');

//USED IN UCM slider.php
$GLOBALS['showH1Banner'] = $showH1Banner;


/* + SEF - use for date item-header-block
======================================================================*/

$sef = "";
if ($lang->getTag() !== 'zh-TW') {
	$sef = "en";
}

item.php

<?php if ($show_schema == 1) : ?>
    <?php
    if (($microdata_itemtype == 'Article') || ($microdata_itemtype == 'NewsArticle') || ($microdata_itemtype == 'BlogPosting')) :


    ?>

      <?php
      if ($json_description != '' && $imageURL != '') {


        $structured_data .= '<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "' . $microdata_itemtype . '",
  "mainEntityOfPage": {
    "@type": "WebPage",
    "@id": "' . JURI::current() . '"
  },
  "headline": ' . json_encode($document->getTitle(), JSON_UNESCAPED_UNICODE) . ',
 ' . $JSONimageURL . '
  ' . $datePublished . '
  ' . $dateModified . '
  "author": {
    "@type": "Person",
    "name": ' . json_encode($author, JSON_UNESCAPED_UNICODE) . '
  },
   "publisher": {
    "@type": "Organization",
    "name": ' . json_encode($company_brand_name, JSON_UNESCAPED_UNICODE) . ',
    "logo": {
      "@type": "ImageObject",
      "url": "' . $company_logo_image_name . '"
    }
  },
  

  "description": ' . json_encode($json_description, JSON_UNESCAPED_UNICODE) . '
}



</script>';
      }
      ?>
    <?php endif; ?>