chamilo-lms/main/social/group_edit.php

<?php
/* For licensing terms, see /license.txt */
/**
 * @package chamilo.social
 * @author Julio Montoya <gugli100@gmail.com>
 */
/**
 * Initialization
 */
// Language files that should be included
$language_file = array('userInfo');
$cidReset = true;
require_once '../inc/global.inc.php';

api_block_anonymous_users();
if (api_get_setting('allow_social_tool') != 'true') {
    api_not_allowed();
}

$this_section = SECTION_SOCIAL;

$htmlHeadXtra[] = '<script>
var textarea = "";
var num_characters_permited = 255;
function textarea_maxlength(){
   num_characters = document.forms[0].description.value.length;
  if (num_characters > num_characters_permited){
      document.forms[0].description.value = textarea;
   }else{
      textarea = document.forms[0].description.value;
   }
}
</script>';

$group_id = isset($_GET['id']) ? intval($_GET['id']) : intval($_POST['id']);
$tool_name = get_lang('GroupEdit');

$interbreadcrumb[] = array('url' => 'home.php', 'name' => get_lang('Social'));
$interbreadcrumb[] = array('url' => 'groups.php', 'name' => get_lang('Groups'));

$usergroup = new UserGroup();

$group_data = $usergroup->get($group_id);
if (empty($group_data)) {
    header('Location: groups.php?id='.$group_id);
    exit;
}

//only group admins can edit the group
if (!$usergroup->is_group_admin($group_id)) {
    api_not_allowed();
}

// Create the form
$form = new FormValidator('group_edit', 'post', '', '');
$form->addElement('hidden', 'id', $group_id);

// name
$form->addElement('text', 'name', get_lang('Name'), array('class' => 'span5', 'maxlength' => 120));
$form->applyFilter('name', 'html_filter');
$form->applyFilter('name', 'trim');
$form->addRule('name', get_lang('ThisFieldIsRequired'), 'required');

// Description
$form->addElement(
    'textarea',
    'description',
    get_lang('Description'),
    array('class' => 'span5', 'cols' => 58, 'onKeyDown' => "textarea_maxlength()", 'onKeyUp' => "textarea_maxlength()")
);
$form->applyFilter('description', 'html_filter');
$form->applyFilter('description', 'trim');
$form->addRule('name', '', 'maxlength', 255);

// url
$form->addElement('text', 'url', get_lang('URL'), array('class' => 'span5'));
$form->applyFilter('url', 'html_filter');
$form->applyFilter('url', 'trim');

// Picture
$form->addElement('file', 'picture', get_lang('AddPicture'));
$allowed_picture_types = array('jpg', 'jpeg', 'png', 'gif');
$form->addRule(
    'picture',
    get_lang('OnlyImagesAllowed').' ('.implode(',', $allowed_picture_types).')',
    'filetype',
    $allowed_picture_types
);
if (strlen($group_data['picture']) > 0) {
    $form->addElement('checkbox', 'delete_picture', '', get_lang('DelImage'));
}

//Status
$form->addElement('select', 'visibility', get_lang('GroupPermissions'), $usergroup->getGroupStatusList(), array());


// Submit button
$form->addElement('style_submit_button', 'submit', get_lang('ModifyInformation'), 'class="save"');

// Set default values
$form->setDefaults($group_data);

// Validate form
if ($form->validate()) {
    $group = $form->exportValues();
    $picture_element = $form->getElement('picture');
    $picture = $picture_element->getValue();
    $picture_uri = $group_data['picture'];

    if ($group['delete_picture']) {
        $picture_uri = $usergroup->delete_group_picture($group_id);
    } elseif (!empty($picture['name'])) {
        $picture_uri = $usergroup->update_group_picture(
            $group_id,
            $_FILES['picture']['name'],
            $_FILES['picture']['tmp_name']
        );
    }
    $group['id'] = $group_id;
    $usergroup->update($group);
    $tok = Security::get_token();
    header(
        'Location: groups.php?id='.$group_id.'&action=show_message&message='.urlencode(
            get_lang('GroupUpdated')
        ).'&sec_token='.$tok
    );
    exit();
}

// Group picture
$image_path = $usergroup->get_group_picture_path_by_id($group_id, 'web');
$image_dir = $image_path['dir'];
$image = $image_path['file'];
$image_file = ($image != '' ? $image_dir.$image : api_get_path(WEB_CODE_PATH).'img/unknown_group.jpg');
$image_size = api_getimagesize($image_file);

// get the path,width and height from original picture
$big_image = $image_dir.'big_'.$image;
$big_image_size = api_getimagesize($big_image);
$big_image_width = $big_image_size['width'];
$big_image_height = $big_image_size['height'];
$url_big_image = $big_image.'?rnd='.time();

$social_left_content = SocialManager::show_social_menu('group_edit', $group_id);
$social_right_content = '<div class="span9">';
$social_right_content .= $form->return_form();
$social_right_content .= '</div>';

$tpl = new Template($tool_name);
$tpl->set_help('Groups');
$tpl->assign('social_left_content', $social_left_content);
$tpl->assign('social_right_content', $social_right_content);

$social_layout = $tpl->get_template('layout/social_layout.tpl');
$tpl->display($social_layout);