chooserestoredestination.php

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<?php
use Elgg\Exceptions\Http\EntityNotFoundException;
use Elgg\Exceptions\Http\EntityPermissionsException;

elgg_gatekeeper();

$entity_guid = (int) get_input('entity_guid');
$entity = elgg_call(ELGG_SHOW_DELETED_ENTITIES, function() use ($entity_guid) {
    return get_entity($entity_guid);
});
if (!$entity instanceof \ElggEntity) {
    throw new EntityNotFoundException();
}

if (!$entity->canEdit()) {
    throw new EntityPermissionsException();
}

echo elgg_view_field([
    '#type' => 'hidden',
    'name' => 'entity_guid',
    'value' => $entity->guid,
]);

$owner = $entity->getOwnerEntity();
if ($owner instanceof \ElggUser && $owner->getGroups(['count' => true])) {
    echo elgg_view('output/longtext', [
        'value' => elgg_echo('trash:restore:container:choose'),
    ]);
    
    echo elgg_view_field([
        '#type' => 'radio',
        'name' => 'destination_container_guid',
        'value' => 'group',
        'options_values' => [
            'group' => elgg_echo('trash:restore:container:group'),
        ],
    ]);
    
    echo elgg_view_field([
        '#type' => 'grouppicker',
        '#label' => elgg_echo('trash:restore:group'),
        '#help' => elgg_echo('trash:restore:group:help'),
        'name' => 'destination_container_guid',
        'options' => [
            'match_target' => $owner->guid,
            'match_membership' => !elgg_is_admin_logged_in(),
        ],
        'limit' => 1,
    ]);
    
    echo elgg_view_field([
        '#type' => 'radio',
        'name' => 'destination_container_guid',
        'options_values' => [
            $owner->guid => elgg_echo('trash:restore:owner', [$owner->getDisplayName()]),
        ],
    ]);
} else {
    echo elgg_view('output/longtext', [
        'value' => elgg_echo('trash:restore:container:owner'),
    ]);
    echo elgg_view_field([
        '#type' => 'hidden',
        'name' => 'destination_container_guid',
        'value' => $owner->guid,
    ]);
}

// form footer
$footer = elgg_view_field([
    '#type' => 'submit',
    'text' => elgg_echo('save'),
    'confirm' => elgg_echo('restoreandmoveconfirm'),
]);

elgg_set_form_footer($footer);