Timeline Express Pro Modifications: Difference between revisions

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+And there's also one more item to configure when using the "lightbox" method.  A dedicated page (WhatEverURL) needs to be created for the lightbox to open, with any custom CSS associated with making pages render correctly in a theme.  And the below code needs to also be inserted into the functions.php file in order to only have the functionality run on the pages it is intended to run on;<syntaxhighlight lang="text">
+// This If Function is TRUE if the requested Page is for the intended links
+// When FALSE, the $CONTENT is simply returned as is with no changes
+if ( basename(get_permalink()) == 'PageNameToCheck')				// If the Page or Post name changes, it also needs to be changed in the link generated in the Timeline Express function above.
+	{
+	$post_id_from_post_header = $_POST['PostIdPassed'];
+	$post_id_from_get = $_GET['metapost_id'];
+// This If Function is TRUE if the page was requested via a direct link or crawled by a robot.
+	if( is_null( $post_id_from_post_header ) )
+	{
+		$post_id_from_post_header = $post_id_from_get;
+	}
+	$content_of_custom_excerpt = get_post_meta( $post_id_from_post_header, 'announcement_custom_excerpt', true );
+// This If Function is only TRUE if there is no announcement_custom_exerpt Field in the metapost Table for a post.
+// When FALSE, an announcement_custom_exerpt Field in the metapost Table for a post exists.
+	if( is_null( $content_of_custom_excerpt ) )
+		{
+		$custom_excerpt_result_message = 'This post has no custom excerpt associated with it.';
+		$content = $content;
+		return $content;
+		}
+	else{
+		$content = 'Post ID from GET:' . $post_id_from_get . '<br><br>' . 'Post ID from HEADER:' . $post_id_from_post_header . $content_of_custom_excerpt;
+		return $content;
+		}
+	}
+else{
+	$content = $content;
+	return $content;
+    }
+}
+add_filter ('the_content', 'display_sources_and_additional_information');
+</syntaxhighlight>
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