<?php
/*Display page topics and topic links for filtering the page list*/
 
// get the current page list item topics for a specific topic tree
$topics = $page->getAttribute('blog_entry_topics');
 
// if $topics is true, loop through each topic
// - var_dump(is_object($topics)); is false
if ($topics) {
    // topics wrapper container (optional)
    echo '<div class="ccm-block-topics-wrapper">';
 
    foreach ($topics as $topic) {
        // get the tree node ID
        $treeNodeID = $topic->getTreeNodeID();
        // get the tree node name
        $treeNodeName = $topic->getTreeNodeDisplayName();
        // make the tree node name ready for use in a URL
        // - match the default Topic block link case by making the tree node name lowercase
        $urlTreeNodeName = mb_strtolower($treeNodeName);
 
        // create a link to filter the current page list by a topic
        // - this recreates the link structure that the Topics block getTopicLink() controller method uses
        // - URL:to() rawurlencodes URL segments (replacing things like whitespace characters with %20 in strings and other characters like umlauts with %C3%A4) and adds forward slashes
        echo '<a href="' . URL::to($c, 'topic', $treeNodeID, $urlTreeNodeName) . '">';
        // Example:
        // - $c is the current page object
        //http://localhost/concrete5/index.php/tests/...
        // - add the "topic" segment
        // topic/
        // - $treeNodeID adds the tree node ID
        // 11/
        // - $urlTreeNodeName adds the tree node name
        // projects
        // - full URL created
        //http://localhost/concrete5/index.php/tests/topic/11/projects...
 
        // display the tree node name
        // - this example uses span formatting and is optional
        // - display the tree node using default case
        echo '<span class="ccm-block-topic">' . $treeNodeName . '</span>';
        // - display the tree node in all uppercase
        // echo '<span class="ccm-block-topic">' . mb_strtoupper($treeNodeName) . '</span>';
        // - display the tree node in all lowercase
        // echo '<span class="ccm-block-topic">' . mb_strtolower($treeNodeName) . '</span>';
        // - display the tree node with the first character in each word capitalized
        // echo '<span class="ccm-block-topic">' . mb_convert_case($treeNodeName, MB_CASE_TITLE, 'UTF-8') . '</span>';
        echo '</a>';
    }
    echo '</div>';
}
?>