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<?php
/**
* _, __, _, _ __, _ _, _, _
* / \ |_) (_ | | \ | /_\ |\ |
* \ / |_) , ) | |_/ | | | | \|
* ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
*
* Workspace class
*
* @package ObsidianWorkspaces
* @subpackage Model
* @author Sébastien Santoro aka Dereckson <dereckson@espace-win.org>
* @license http://www.opensource.org/licenses/bsd-license.php BSD
* @filesource
*/
/**
* Workspace class
*
* This class maps the workspaces table.
*/
class Workspace {
public $id;
public $code;
public $name;
public $created;
public $description;
/**
* Initializes a new instance
*
* @param int $id the primary key
*/
function __construct ($id = NULL) {
if ($id) {
$this->id = $id;
$this->load_from_database();
}
}
/**
* Loads the object Workspace (ie fill the properties) from the $_POST array
*/
function load_from_form () {
if (array_key_exists('code', $_POST)) $this->code = $_POST['code'];
if (array_key_exists('name', $_POST)) $this->name = $_POST['name'];
if (array_key_exists('created', $_POST)) $this->created = $_POST['created'];
if (array_key_exists('description', $_POST)) $this->description = $_POST['description'];
}
/**
* Loads the object zone (ie fill the properties) from the $row array
*/
function load_from_row ($row) {
$this->code = $row['workspace_code'];
$this->name = $row['workspace_name'];
$this->created = $row['workspace_created'];
$this->description = $row['workspace_description'];
}
/**
* Loads the object Workspace (ie fill the properties) from the database
*/
function load_from_database () {
global $db;
$id = $db->sql_escape($this->id);
$sql = "SELECT * FROM " . TABLE_WORKSPACES . " WHERE workspace_id = '" . $id . "'";
if (!$result = $db->sql_query($sql)) message_die(SQL_ERROR, "Unable to query workspaces", '', __LINE__, __FILE__, $sql);
if (!$row = $db->sql_fetchrow($result)) {
$this->lastError = "Workspace unkwown: " . $this->id;
return false;
}
$this->load_from_row($row);
return true;
}
/**
* Saves to database
*/
function save_to_database () {
global $db;
$id = $this->id ? "'" . $db->sql_escape($this->id) . "'" : 'NULL';
$code = $db->sql_escape($this->code);
$name = $db->sql_escape($this->name);
$created = $db->sql_escape($this->created);
$description = $db->sql_escape($this->description);
//Updates or inserts
$sql = "REPLACE INTO " . TABLE_WORKSPACES . " (`workspace_id`, `workspace_code`, `workspace_name`, `workspace_created`, `workspace_description`) VALUES ('$id', '$code', '$name', '$created', '$description')";
if (!$db->sql_query($sql)) {
message_die(SQL_ERROR, "Unable to save", '', __LINE__, __FILE__, $sql);
}
if (!$this->id) {
//Gets new record id value
$this->id = $db->sql_nextid();
}
}
/**
* Gets workspaces specified user has access to.
*
* @param int $user_id The user to get his workspaces
* @return Array A list of workspaces
*/
public static function get_user_workspaces ($user_id) {
global $db;
//Gets the workspaces list from cache, as this complex request could take 100ms
//and is called on every page.
$cache = Cache::load();
if (!$workspaces = unserialize($cache->get("workspaces-$user_id"))) {
$clause = User::get_permissions_clause_from_user_id($user_id);
$sql = "SELECT DISTINCT w.* FROM " . TABLE_WORKSPACES . " w, " . TABLE_PERMISSIONS . " p
WHERE p.target_resource_type = 'W' AND p.permission_name = 'accessLevel'
AND $clause AND w.workspace_id = p.target_resource_id";
if (!$result = $db->sql_query($sql)) {
message_die(SQL_ERROR, "Can't get user workspaces", '', __LINE__, __FILE__, $sql);
}
$workspaces = array();
while ($row = $db->sql_fetchrow($result)) {
$workspace = new Workspace();
$workspace->id = $row['workspace_id'];
$workspace->load_from_row($row);
$workspaces[] = $workspace;
}
$cache->set("workspaces-$user_id", serialize($workspaces));
}
return $workspaces;
}
/**
* Determines if a string matches an existing workspace code.
*
* @param string $code The workspace code to check
* @return boolean If the specified code matches an existing workspace, true; otherwise, false.
*/
public static function is_workspace ($code) {
global $db;
$code = $db->sql_escape($code);
$sql = "SELECT count(*) FROM " . TABLE_WORKSPACES . " WHERE workspace_code = '$code'";
if (!$result = $db->sql_query($sql)) {
message_die(SQL_ERROR, "Can't check workspace code", '', __LINE__, __FILE__, $sql);
}
$row = $db->sql_fetchrow($result);
return ($row[0] == 1);
}
}

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