responses.php

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<?php
// allow river views to override the response content
$responses = elgg_extract('responses', $vars, false);
if ($responses) {
    echo $responses;
    return true;
}

$item = $vars['item'];
/* @var ElggRiverItem $item */
$object = $item->getObjectEntity();
$target = $item->getTargetEntity();

// annotations and comments do not have responses
if ($item->annotation_id != 0 || !$object || elgg_instanceof($target, 'object', 'comment')) {
    return true;
}

$comment_count = $object->countComments();

if ($comment_count) {
    $comments = elgg_get_entities(array(
        'type' => 'object',
        'subtype' => 'comment',
        'container_guid' => $object->getGUID(),
        'limit' => 3,
        'order_by' => 'e.time_created desc',
        'distinct' => false,
    ));

    // why is this reversing it? because we're asking for the 3 latest
    // comments by sorting desc and limiting by 3, but we want to display
    // these comments with the latest at the bottom.
    $comments = array_reverse($comments);

    echo elgg_view_entity_list($comments, array('list_class' => 'elgg-river-comments'));

    if ($comment_count > count($comments)) {
        $url = $object->getURL();
        $params = array(
            'href' => $url,
            'text' => elgg_echo('river:comments:all', array($comment_count)),
            'is_trusted' => true,
        );
        $link = elgg_view('output/url', $params);
        echo "<div class=\"elgg-river-more\">$link</div>";
    }
}

// inline comment form
$form_vars = array('id' => "comments-add-{$object->getGUID()}", 'class' => 'hidden');
$body_vars = array('entity' => $object, 'inline' => true);
echo elgg_view_form('comment/save', $form_vars, $body_vars);