_meta( $id ,'_portfolio_custom_link', true ) != '' ? get_post_meta( $id , '_portfolio_custom_link_url', true ) : get_permalink( $id );


			//merge default and params array. remove empty params with array_filter
			$params = array_merge( $defaults, array_filter( $params ) );

			$params = apply_filters( 'avf_portfolio_preview_template_params', $params, $entry );

			global $avia_config;

			/**
			 * Fullwidth shortcodes like "Fullwidth Button" will break layout because they create an own section.
			 * This allows to return without creating new sections
			 *
			 * @since 4.7.6.4
			 */
			if( ! isset( $avia_config['portfolio_preview_template'] ) )
			{
				$avia_config['portfolio_preview_template'] = 0;
			}

			$avia_config['portfolio_preview_template'] ++;

			//set the content
			$content = str_replace( ']]>', ']]>', apply_filters( 'the_content', $params['text'] ) );
			unset( $params['text'] );

			if( isset( $avia_config['portfolio_preview_template'] ) )
			{
				$avia_config['portfolio_preview_template'] --;

				if( $avia_config['portfolio_preview_template'] <= 0 )
				{
					unset( $avia_config['portfolio_preview_template'] );
				}
			}

			//set images
			$string = '';

			//set first class if preview images are deactivated
			$nogalleryclass = '';
			$params['ajax_request'] = true;

			switch( $params['method'] )
			{
				case 'gallery':
					$params['style'] = 'big_thumb';
					$params['thumb_size'] = 'square';
					foreach( $params as $key => $param )
					{
						$string .= $key . "='" . $param . "' ";
					}
					$images = do_shortcode( "[av_gallery {$string}]" );
				break;

				case 'slideshow':
					$params['size'] = $params['preview_size'];
					foreach( $params as $key => $param )
					{
						$string .= $key . "='" . $param . "' ";
					}
					$images = do_shortcode( "[av_slideshow {$string}]" );
				break;

				case 'list':
					$images = $this->post_images( $params['ids'] );
				break;

				case 'no':
					$images = false;
					$nogalleryclass = ' no_portfolio_preview_gallery ';
				break;
			}

			$output .= "<div class='ajax_slide ajax_slide_{$id}' data-slide-id='{$id}' >";

				$output .= "<article class='inner_slide {$nogalleryclass}' " . avia_markup_helper( array( 'context' => 'entry', 'echo' => false, 'id' => $id, 'custom_markup' => $this->atts['custom_markup'] ) ) . ">";

				if( ! empty( $images ) )
				{
					$output .= "<div class='av_table_col first portfolio-preview-image'>";
					$output .=		$images;
					$output .= '</div>';
				}

				if( ! empty( $nogalleryclass ) )
				{
					$nogalleryclass .= ' first ';
				}

				$markup = avia_markup_helper( array( 'context' => 'entry_title', 'echo' => false, 'id' => $id, 'custom_markup' => $this->atts['custom_markup'] ) );

				$default_heading = 'h2';
				$args = array(
							'heading'		=> $default_heading,
							'extra_class'	=> ''
						);

				$extra_args = array( $this, $entry, __METHOD__ );

				/**
				 * @since 4.5.5
				 * @return array
				 */
				$args = apply_filters( 'avf_customize_heading_settings', $args, __CLASS__, $extra_args );

				$heading = ! empty( $args['heading'] ) ? $args['heading'] : $default_heading;
				$css = ! empty( $args['extra_class'] ) ? $args['extra_class'] : '';


				$output .=	"<div class='av_table_col $nogalleryclass portfolio-entry portfolio-preview-content'>";

				$output .=		'<header class="entry-content-header">';
				$output .=			"<{$heading} class='portfolio-preview-title entry-title {$css}' {$markup}><a href='{$link}'>" . avia_wp_get_the_title( $entry ) . "</a></{$heading}>";
				$output .=		'</header>';

				$output .=		"<div class='entry-content-wrapper entry-content' " . avia_markup_helper( array( 'context' => 'entry_content', 'echo' => false, 'id' => $id, 'custom_markup' => $this->atts['custom_markup'] ) ) . ">";
				$output .=			$content;
				$output .=		'</div>';
				$output .=		"<span class='avia-arrow'></span>";

				$output .=	'</div>';

                $output .=	'<footer class="entry-footer"></footer>';
				$output .= '</article>';

			$output .= '</div>';

			return "<script type='text/html' id='avia-tmpl-portfolio-preview-{$id}'>\n{$output}\n</script>\n\n";

		}

		/**
		 *
		 * @param string $ids
		 * @return string
		 */
		protected function post_images( $ids )
		{
			if( empty( $ids ) )
			{
				return;
			}

			$attachments = get_posts( array(
									'include'			=> $ids,
									'post_status'		=> 'inherit',
									'post_type'			=> 'attachment',
									'post_mime_type'	=> 'image',
									'order'				=> 'ASC',
									'orderby'			=> 'post__in'
								)
							);

			$output = '';

			foreach( $attachments as $attachment )
			{
				//	create array with responsive info for lightbox
				$img = Av_Responsive_Images()->responsive_image_src( $attachment->ID, 'large' );

                $alt = get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true );
                $alt = ! empty( $alt ) ? esc_attr( $alt ) : '';
                $title = trim( $attachment->post_title ) ? esc_attr( $attachment->post_title ) : '';
                $description = trim( $attachment->post_content ) ? esc_attr( $attachment->post_content ) : '';

				$img_tag = "<img src='{$img[0]}' title='{$title}' alt='{$alt}' />";
				$img_tag = Av_Responsive_Images()->prepare_single_image( $img_tag, $attachment->ID, $this->atts['lazy_loading'] );

				$lightbox_attr = Av_Responsive_Images()->html_attr_image_src( $img, false );

				$output .= "<a {$lightbox_attr} class='portolio-preview-list-image' title='{$description}' >";
				$output .=		$img_tag;
				$output .= '</a>';
			}

			return $output;
		}



		/**
		 * Output the preview templates in footer
		 *
		 */
		public function print_preview_templates()
		{
			foreach( $this->entries->posts as $entry )
			{
				echo $this->build_preview_template( $entry );
			}
		}



		/**
		 * Get the entries and add to local variable
		 *
		 * @param array $params
		 */
		public function query_entries( $params = array() )
		{

			$query = array();
			if( empty( $params ) )
			{
				$params = $this->atts;
			}

			if( ! empty( $params['categories'] ) )
			{
				//get the portfolio categories
				$terms = explode( ',', $params['categories'] );
			}

			$this->current_page = ( $params['paginate'] != 'no' ) ? avia_get_current_pagination_number( 'avia-element-paging' ) : 1;

			$date_query = AviaHelper::date_query( array(), $params );

			//if we find categories perform complex query, otherwise simple one
			if( isset( $terms[0] ) && ! empty( $terms[0] ) && ! is_null( $terms[0] ) && $terms[0] != 'null' )
			{
				$query = array(
								'orderby'		=> $params['query_orderby'],
								'order'			=> $params['query_order'],
								'paged'			=> $this->current_page,
								'posts_per_page' => $params['items'],
								'post_type'		=> $params['post_type'],
								'date_query'	=> $date_query,
								'tax_query'		=> array(
														array(
																'taxonomy' 	=> $params['taxonomy'],
																'field' 	=> 'id',
																'terms' 	=> $terms,
																'operator' 	=> 'IN'
															)
													)
							);
			}
			else
			{
				$query = array(
								'orderby'		=> $params['query_orderby'],
								'order'			=> $params['query_order'],
								'paged'			=> $this->current_page,
								'posts_per_page' => $params['items'],
								'post_type'		=> $params['post_type'],
								'date_query'	=> $date_query,
							);
			}

			/**
			 *
			 * @since < 4.0
			 * @param array $query
			 * @param array $params
			 * @return array
			 */
			$query = apply_filters( 'avia_post_grid_query', $query, $params );

			$this->entries = new WP_Query( $query );

		}

		/**
		 * Allows to set the query to an existing post query. usually only needed on pages that already did a query for the entries, like taxonomy archive pages.
		 * Shortcode uses the query_entries function above
		 *
		 */
		public function use_global_query()
		{
			global $wp_query;

			$this->entries = $wp_query;
		}

	}
}


/*
Example: how to order posts randomly on page load. put this into functions.php

add_filter('avia_post_grid_query','avia_order_by_random');
function avia_order_by_random($query)
{
	$query['orderby'] = 'rand';
	return $query;
}
*/
<?xml version="1.0"?>
<oembed><version>1.0</version><provider_name>Stichting Collot Zien en Beleven</provider_name><provider_url>https://www.collotzienenbeleven.nl</provider_url><author_name>Stichting Collot Zien en Beleven</author_name><author_url>https://www.collotzienenbeleven.nl</author_url><title>Openingsuren Holland Casino Eindhoven</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="YWl8by2Fls"&gt;&lt;a href="https://www.collotzienenbeleven.nl/openingsuren-holland-casino-eindhoven/"&gt;Openingsuren Holland Casino Eindhoven&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://www.collotzienenbeleven.nl/openingsuren-holland-casino-eindhoven/embed/#?secret=YWl8by2Fls" width="600" height="338" title="&#x201C;Openingsuren Holland Casino Eindhoven&#x201D; &#x2014; Stichting Collot Zien en Beleven" data-secret="YWl8by2Fls" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script type="text/javascript"&gt;
/* &lt;![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&amp;&amp;d.addEventListener&amp;&amp;"undefined"!=typeof URL&amp;&amp;(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&amp;&amp;!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i&lt;o.length;i++)o[i].style.display="none";for(i=0;i&lt;a.length;i++)s=a[i],e.source===s.contentWindow&amp;&amp;(s.removeAttribute("style"),"height"===t.message?(1e3&lt;(r=parseInt(t.value,10))?r=1e3:~~r&lt;200&amp;&amp;(r=200),s.height=r):"link"===t.message&amp;&amp;(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&amp;&amp;n.host===r.host&amp;&amp;l.activeElement===s&amp;&amp;(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r&lt;s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
/* ]]&gt; */
&lt;/script&gt;
</html></oembed>