access.php

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<?php
if (isset($vars['class'])) {
    $vars['class'] = "elgg-input-access {$vars['class']}";
} else {
    $vars['class'] = "elgg-input-access";
}

$defaults = array(
    'disabled' => false,
    'value' => get_default_access(),
    'options_values' => get_write_access_array(),
);

/* @var ElggEntity $entity */
$entity = elgg_extract('entity', $vars);
unset($vars['entity']);

// should we tell users that public/logged-in access levels will be ignored?
$container = elgg_get_page_owner_entity();
if (($container instanceof ElggGroup)
        && $container->getContentAccessMode() === ElggGroup::CONTENT_ACCESS_MODE_MEMBERS_ONLY
        && !elgg_in_context('group-edit')
        && !($entity && $entity instanceof ElggGroup)) {
    $show_override_notice = true;
} else {
    $show_override_notice = false;
}

if ($entity) {
    $defaults['value'] = $entity->access_id;
}

$vars = array_merge($defaults, $vars);

if ($vars['value'] == ACCESS_DEFAULT) {
    $vars['value'] = get_default_access();
}

if (is_array($vars['options_values']) && sizeof($vars['options_values']) > 0) {
    if ($show_override_notice) {
        $vars['data-group-acl'] = $container->group_acl;
    }
    echo elgg_view('input/select', $vars);
    if ($show_override_notice) {
        echo "<p class='elgg-text-help'>" . elgg_echo('access:overridenotice')  .  "</p>";
    }
}