PHP is_friend函数代码示例

function checkPerm($permission, $contentOwnerID)
{
    $currUserID = wp_get_current_user();
    $currUserID = $currUserID->ID;
    $privacySettings = get_usermeta($contentOwnerID, 'privacy_settings');
    if ($privacySettings) {
        foreach ($privacySettings as $key => $perm) {
            if ($key == $permission) {
                $permission = $perm;
            }
        }
    }
    $friendList = new userFriends();
    $friends = $friendList->get_friends($contentOwnerID);
    if ($permission['status'] == 'friends' && is_friend($contentOwnerID)) {
        return true;
    }
    if ($permission['status'] == 'all_members' && is_user_logged_in()) {
        return true;
    }
    if ($permission['status'] == 'public') {
        return true;
    }
    if ($currUserID == $contentOwnerID) {
        return true;
    }
    return false;
    // If someone hasn't set their privacy then we default to private
}

 public function get_all()
 {
     $this->db->order_by("date", "desc");
     $query = $this->db->get('statusupdates');
     $users = array();
     foreach ($query->result() as $row) {
         $this->load->helper('misc_helper');
         //check if it is a friend
         if (is_friend($row->userid) or $row->userid == get_user()->get_id()) {
             array_push($users, $this->prep_status($row));
         }
     }
     return $users;
 }

 public static function render_instance(BlockInstance $instance, $editing = false)
 {
     global $USER, $exporter;
     $userid = $instance->get_view()->get('owner');
     if (!$userid) {
         // 'My Friends' doesn't make sense for group/site views
         return '';
     }
     $limit = isset($exporter) ? false : MAXFRIENDDISPLAY;
     $friends = get_friends($userid, $limit, 0);
     if ($friends['count']) {
         self::build_myfriends_html($friends, $userid, $instance);
     } else {
         $friends = false;
     }
     $smarty = smarty_core();
     $smarty->assign('friends', $friends);
     $smarty->assign('searchingforfriends', array('<a href="' . get_config('wwwroot') . 'user/find.php">', '</a>'));
     // If the user has no friends, try and display something useful, such
     // as a 'request friendship' button
     if (!$friends) {
         $loggedinid = $USER->get('id');
         $is_friend = is_friend($userid, $loggedinid);
         if ($is_friend) {
             $relationship = 'existingfriend';
         } else {
             if (record_exists('usr_friend_request', 'requester', $loggedinid, 'owner', $userid)) {
                 $relationship = 'requestedfriendship';
             } else {
                 $relationship = 'none';
                 $friendscontrol = get_account_preference($userid, 'friendscontrol');
                 if ($friendscontrol == 'auto') {
                     require_once 'pieforms/pieform.php';
                     $newfriendform = pieform(array('name' => 'myfriends_addfriend', 'successcallback' => 'addfriend_submit', 'autofocus' => false, 'renderer' => 'div', 'elements' => array('add' => array('type' => 'button', 'usebuttontag' => true, 'class' => 'btn-default', 'value' => '<span class="icon icon-user-plus icon-lg prs"></span>' . get_string('addtomyfriends', 'group')), 'id' => array('type' => 'hidden', 'value' => $userid))));
                     $smarty->assign('newfriendform', $newfriendform);
                 }
                 $smarty->assign('friendscontrol', $friendscontrol);
             }
         }
         $smarty->assign('relationship', $relationship);
     }
     $smarty->assign('loggedin', is_logged_in());
     $smarty->assign('lookingatownpage', $USER->get('id') == $userid);
     $smarty->assign('USERID', $userid);
     return $smarty->fetch('blocktype:myfriends:myfriends.tpl');
 }

function permitted($another_id)
{
    return $another_id == current_user()['id'] || is_friend($another_id);
}

        ?>
">
            <img src="<?php 
        echo select_thumbnail_image($row->id, $row->hasimage);
        ?>
" alt="" />
        </a>
        <a href="<?php 
        echo profile_route($row->id);
        ?>
"><?php 
        echo $row->firstname . ' ' . $row->lastname;
        ?>
</a>
        <?php 
        if (!is_friend($row->id)) {
            ?>
            -&nbsp;<a href="<?php 
            echo friends_add_route($row->id);
            ?>
">add as friend</a>
        <?php 
        }
        ?>
    </li>
    <?php 
    }
    ?>
</ul>
<?php 
}

    foreach (prefectures() as $pref) {
        ?>
        <option <?php 
        h($profile['pref'] == $pref ? 'selected' : '');
        ?>
><?php 
        h($pref);
        ?>
</option>
        <?php 
    }
    ?>
      </select>
    </div>
    <div><input type="submit" value="更新" /></div>
  </form>
</div>
<?php 
} elseif (!is_friend($owner['id'])) {
    ?>
<h2>あなたは友だちではありません</h2>
<div id="profile-friend-form">
  <form method="POST" action="/friends/<?php 
    h($owner['account_name']);
    ?>
">
    <input type="submit" value="このユーザと友だちになる" />
  </form>
</div>
<?php 
}

function addfriend_submit(Pieform $form, $values)
{
    global $USER, $SESSION;
    $user = get_record('usr', 'id', $values['id']);
    $loggedinid = $USER->get('id');
    if (is_friend($loggedinid, $user->id)) {
        $SESSION->add_info_msg(get_string('alreadyfriends', 'group', display_name($user)));
        delete_records('usr_friend_request', 'owner', $loggedinid, 'requester', $user->id);
        redirect(profile_url($user));
    }
    // friend db record
    $f = new StdClass();
    $f->ctime = db_format_timestamp(time());
    // notification info
    $n = new StdClass();
    $n->url = profile_url($USER, false);
    $n->users = array($user->id);
    $lang = get_user_language($user->id);
    $displayname = display_name($USER, $user);
    $n->urltext = $displayname;
    $f->usr1 = $values['id'];
    $f->usr2 = $loggedinid;
    db_begin();
    delete_records('usr_friend_request', 'owner', $loggedinid, 'requester', $user->id);
    insert_record('usr_friend', $f);
    db_commit();
    $n->subject = get_string_from_language($lang, 'addedtofriendslistsubject', 'group', $displayname);
    $n->message = get_string_from_language($lang, 'addedtofriendslistmessage', 'group', $displayname, $displayname);
    require_once 'activity.php';
    activity_occurred('maharamessage', $n);
    handle_event('addfriend', array('user' => $f->usr2, 'friend' => $f->usr1));
    $SESSION->add_ok_msg(get_string('friendformaddsuccess', 'group', display_name($user)));
    redirect(profile_url($user));
}

/**
 *
 * @package    mahara
 * @subpackage core
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
define('INTERNAL', 1);
define('MENUITEM', 'groups/findfriends');
require dirname(dirname(__FILE__)) . '/init.php';
require_once 'pieforms/pieform.php';
$id = param_integer('id');
if (!is_friend($id, $USER->get('id')) || !($user = get_record('usr', 'id', $id, 'deleted', 0))) {
    throw new AccessDeniedException(get_string('cantremovefriend', 'group'));
}
$user->introduction = get_field('artefact', 'title', 'artefacttype', 'introduction', 'owner', $id);
define('TITLE', get_string('removefromfriends', 'group', display_name($id)));
$returnto = param_alpha('returnto', 'myfriends');
$offset = param_integer('offset', 0);
switch ($returnto) {
    case 'find':
        $goto = 'user/find.php';
        break;
    case 'view':
        $goto = profile_url($user, false);
        break;
    default:
        $goto = 'user/myfriends.php';

<div id="profile-left-item">
    <div class="float-left">
        <img src="<?php 
echo select_profile_image($user->id, $user->hasimage);
?>
" alt="" width="180px"/>
    </div>
    <div class="float-left" style="margin-bottom: 14px;">
        <h4>
            <?php 
echo $user->firstname . ' ' . $user->lastname;
?>
        </h4>
        <?php 
if (!is_friend($user->id)) {
    ?>
            <a href="<?php 
    echo friends_add_route($user->id, TRUE);
    ?>
">add as friend</a>
        <?php 
}
?>
    </div>
    <div class="clear"></div>
    <div class="left-menu-line"></div>
</div>

<div id="profile-left-item">
    <div class="float-left">
        <h3>Friends</h3>

 public static function render_instance(BlockInstance $instance, $editing = false)
 {
     global $USER;
     $userid = $instance->get_view()->get('owner');
     if (!$userid) {
         // 'My Friends' doesn't make sense for group/site views
         return '';
     }
     $smarty = smarty_core();
     $records = get_records_sql_array('SELECT usr1, usr2 FROM {usr_friend}
         JOIN {usr} u1 ON (u1.id = usr1 AND u1.deleted = 0)
         JOIN {usr} u2 ON (u2.id = usr2 AND u2.deleted = 0)
         WHERE usr1 = ? OR usr2 = ?
         ORDER BY ' . db_random() . '
         LIMIT ?', array($userid, $userid, MAXFRIENDDISPLAY));
     // get the friends into a 4x4 array
     if ($records) {
         $friends = array();
         for ($i = 0; $i < 4; $i++) {
             if (isset($records[4 * $i])) {
                 $friends[$i] = array();
                 for ($j = 4 * $i; $j < ($i + 1) * 4; $j++) {
                     if (isset($records[$j])) {
                         if ($records[$j]->usr1 == $userid) {
                             $friends[$i][] = $records[$j]->usr2;
                         } else {
                             $friends[$i][] = $records[$j]->usr1;
                         }
                     }
                 }
             }
         }
     } else {
         $friends = false;
     }
     $smarty->assign('friends', $friends);
     // If the user has no friends, try and display something useful, such
     // as a 'request friendship' button
     $loggedinid = $USER->get('id');
     $is_friend = is_friend($userid, $loggedinid);
     if ($is_friend) {
         $relationship = 'existingfriend';
     } else {
         if (record_exists('usr_friend_request', 'requester', $loggedinid, 'owner', $userid)) {
             $relationship = 'requestedfriendship';
         } else {
             $relationship = 'none';
             $friendscontrol = get_account_preference($userid, 'friendscontrol');
             if ($friendscontrol == 'auto') {
                 $newfriendform = pieform(array('name' => 'myfriends_addfriend', 'successcallback' => 'addfriend_submit', 'autofocus' => false, 'renderer' => 'div', 'elements' => array('add' => array('type' => 'submit', 'value' => get_string('addtomyfriends', 'group')), 'id' => array('type' => 'hidden', 'value' => $userid))));
                 $smarty->assign('newfriendform', $newfriendform);
             }
             $smarty->assign('friendscontrol', $friendscontrol);
         }
     }
     $smarty->assign('relationship', $relationship);
     $smarty->assign_by_ref('USER', $USER);
     $smarty->assign('USERID', $userid);
     return $smarty->fetch('blocktype:myfriends:myfriends.tpl');
 }

}
if ($userid == 0) {
    redirect();
}
// Get the user's details
if (!isset($user)) {
    if (!($user = get_record('usr', 'id', $userid, 'deleted', 0))) {
        if ($USER->is_logged_in()) {
            throw new UserNotFoundException("User with id {$userid} not found");
        } else {
            // For logged-out users we show "access denied" in order to prevent an enumeration attack
            throw new AccessDeniedException(get_string('youcannotviewthisusersprofile', 'error'));
        }
    }
}
$is_friend = is_friend($userid, $loggedinid);
if ($loggedinid == $userid) {
    $view = $USER->get_profile_view();
} else {
    $userobj = new User();
    $userobj->find_by_id($userid);
    $view = $userobj->get_profile_view();
}
# access will either be logged in (always) or public as well
if (!$view) {
    // No access, so restrict profile view
    throw new AccessDeniedException(get_string('youcannotviewthisusersprofile', 'error'));
}
$viewid = $view->get('id');
// Special behaviour: Logged in users who the page hasn't been shared with, see a special page
// with the user's name, icon, and little else.

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    mahara
 * @subpackage core
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
 * @copyright  (C) 2006-2008 Catalyst IT Ltd http://catalyst.net.nz
 *
 */
define('INTERNAL', 1);
define('MENUITEM', 'groups/findfriends');
require dirname(dirname(__FILE__)) . '/init.php';
require_once 'pieforms/pieform.php';
$id = param_integer('id');
$returnto = param_alpha('returnto', 'myfriends');
if (is_friend($id, $USER->get('id')) || get_friend_request($id, $USER->get('id')) || get_account_preference($id, 'friendscontrol') != 'auth' || $id == $USER->get('id') || !($user = get_record('usr', 'id', $id, 'deleted', 0))) {
    throw new AccessDeniedException(get_string('cantrequestfriendship', 'group'));
}
$user->introduction = get_field('artefact', 'title', 'artefacttype', 'introduction', 'owner', $id);
define('TITLE', get_string('sendfriendshiprequest', 'group', display_name($id)));
$form = pieform(array('name' => 'requestfriendship', 'autofocus' => false, 'elements' => array('message' => array('type' => 'textarea', 'title' => get_string('message'), 'cols' => 50, 'rows' => 4), 'submit' => array('type' => 'submitcancel', 'value' => array(get_string('requestfriendship', 'group'), get_string('cancel')), 'goto' => get_config('wwwroot') . ($returnto == 'find' ? 'user/find.php' : ($returnto == 'view' ? 'user/view.php?id=' . $id : 'user/myfriends.php'))))));
$smarty = smarty();
$smarty->assign('heading', TITLE);
$smarty->assign('form', $form);
$smarty->assign('user', $user);
$smarty->display('user/requestfriendship.tpl');
function requestfriendship_submit(Pieform $form, $values)
{
    global $USER, $SESSION, $id;
    $loggedinid = $USER->get('id');
    $user = get_record('usr', 'id', $id);

         if (isset($options['query']['0']) && in_array($options['query']['0'], $submodules_allowed)) {
             $submodule = $options['query']['0'];
             $template = 'user_favorite_' . $submodule;
             require 'modules/user/favorite_' . $submodule . '.php';
         } else {
             session_write_close();
             header('Location: ' . $config['BASE_URL'] . '/error/invalid_module');
             die;
         }
     } else {
         $template = 'user_' . $module;
         require 'modules/user/' . $module . '.php';
     }
 } else {
     $prefs = get_user_prefs($uid);
     $is_friend = is_friend($uid);
     $friends = get_user_friends($uid, $prefs['show_friends'], $is_friend);
     $playlist = get_user_playlist($uid, $prefs['show_playlist'], $is_friend);
     $favorites = get_user_favorites($uid, $prefs['show_favorites'], $is_friend);
     $subscriptions = get_user_subscriptions($uid, $prefs['show_subscriptions'], $is_friend);
     $subscribers = get_user_subscribers($uid, $prefs['show_subscribers'], $is_friend);
     $albums = get_user_albums($uid);
     $photos = get_user_favorite_photos($uid, $prefs['show_favorites'], $is_friend);
     $games = get_user_favorite_games($uid, $prefs['show_favorites'], $is_friend);
     $show_wall = false;
     $wall_public = $prefs['wall_public'];
     $walls = array();
     $walls_total = 0;
     if ($wall_public == '1') {
         $show_wall = true;
     } else {

        <a href="<?php 
        echo profile_route($row->id);
        ?>
"><img src="<?php 
        echo select_thumbnail_image($row->id, $row->hasimage);
        ?>
" /></a>
        <a href="<?php 
        echo profile_route($row->id);
        ?>
"><?php 
        echo $row->firstname . ' ' . $row->lastname;
        ?>
</a>
    <?php 
        if (!is_friend(get_user()->get_id(), $row->id)) {
            ?>
        -&nbsp;<a href="<?php 
            echo friends_add_route($row->id);
            ?>
">add as friend</a>
    <?php 
        }
        ?>
    </li>
    <?php 
    }
    ?>
</ul>
<?php 
}

/**
 * can a user send a message to another?
 *
 * @param int/object from the user to send the message
 * @param int/object to the user to receive the message
 * @return boolean whether userfrom is allowed to send messages to userto
 */
function can_send_message($from, $to)
{
    if (empty($from)) {
        return false;
        // not logged in
    }
    if (!is_object($from)) {
        $from = get_record('usr', 'id', $from);
    }
    if (is_object($to)) {
        $to = $to->id;
    }
    $messagepref = get_account_preference($to, 'messages');
    return is_friend($from->id, $to) && $messagepref == 'friends' || $messagepref == 'allow' || $from->admin;
}