ilObjFileBasedLMAccess Class Reference

Class ilFileBasedLMAccess. More...

Inheritance diagram for ilObjFileBasedLMAccess:

Collaboration diagram for ilObjFileBasedLMAccess:

Public Member Functions
	__construct ()
	Constructor. More...
	_checkAccess ($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id="")
	checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess) More...
Public Member Functions inherited from ilObjectAccess
	_checkAccess ($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id="")
	Checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess) More...
	_checkCondition ($a_obj_id, $a_operator, $a_value, $a_usr_id)
	check condition More...
	canBeDelivered (ilWACPath $ilWACPath)
	Parameters ilWACPath $ilWACPath Returns bool More...

Static Public Member Functions
static	_getCommands ()
	get commands More...
static	_determineStartUrl ($a_id)
	determine start url More...
static	_checkGoto ($a_target)
	check whether goto script will succeed More...
static	_lookupDiskUsage ($a_id)
	Returns the number of bytes used on the harddisk by the learning module with the specified object id. More...
static	_preloadData ($a_obj_ids, $a_ref_ids)
	Preload data. More...
Static Public Member Functions inherited from ilObjectAccess
static	_getCommands ()
	get commands More...
static	_checkGoto ($a_target)
	check whether goto script will succeed More...
static	_isOffline ($a_obj_id)
	Type-specific implementation of general status, has to be overwritten if object type does not support centralized offline handling. More...
static	_preloadData ($a_obj_ids, $a_ref_ids)
	Preload data. More...

Static Public Attributes
static	$startfile

Protected Attributes
	$user
	$lng
	$rbacsystem
	$access

Detailed Description

Class ilFileBasedLMAccess.

Author

Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version

$Id$

Definition at line 16 of file class.ilObjFileBasedLMAccess.php.

Constructor & Destructor Documentation

__construct()

ilObjFileBasedLMAccess::__construct

(

)

Constructor.

Definition at line 42 of file class.ilObjFileBasedLMAccess.php.

References $DIC, and user().

    {
        global $DIC;

        $this->user = $DIC->user();
        $this->lng = $DIC->language();
        $this->rbacsystem = $DIC->rbac()->system();
        $this->access = $DIC->access();
    }

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Member Function Documentation

_checkAccess()

ilObjFileBasedLMAccess::_checkAccess	(		$a_cmd,
			$a_permission,
			$a_ref_id,
			$a_obj_id,
			$a_user_id = ""
	)

checks wether a user may invoke a command or not (this method is called by ilAccessHandler::checkAccess)

Parameters

string	$a_cmd	command (not permission!)
string	$a_permission	permission
int	$a_ref_id	reference id
int	$a_obj_id	object id
int	$a_user_id	user id (if not provided, current user is taken)

Returns

boolean true, if everything is ok

Definition at line 66 of file class.ilObjFileBasedLMAccess.php.

References $access, $ilUser, $lng, $user, _determineStartUrl(), and IL_NO_OBJECT_ACCESS.

    {
        $ilUser = $this->user;
        $lng = $this->lng;
        $ilAccess = $this->access;

        if ($a_user_id == "") {
            $a_user_id = $ilUser->getId();
        }

        switch ($a_permission) {
            case "read":

                if (ilObjFileBasedLMAccess::_determineStartUrl($a_obj_id) == "") {
                    $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                    return false;
                }
                break;
        }
        return true;
    }

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_checkGoto()

static ilObjFileBasedLMAccess::_checkGoto (   $a_target )

static

check whether goto script will succeed

Definition at line 152 of file class.ilObjFileBasedLMAccess.php.

References $DIC.

    {
        global $DIC;

        $ilAccess = $DIC->access();
        
        $t_arr = explode("_", $a_target);

        if ($t_arr[0] != "htlm" || ((int) $t_arr[1]) <= 0) {
            return false;
        }

        if ($ilAccess->checkAccess("visible", "", $t_arr[1]) ||
            $ilAccess->checkAccess("read", "", $t_arr[1])) {
            return true;
        }
        return false;
    }

_determineStartUrl()

static ilObjFileBasedLMAccess::_determineStartUrl (   $a_id )

static

determine start url

Definition at line 119 of file class.ilObjFileBasedLMAccess.php.

References $DIC, $ilDB, and ilUtil\getWebspaceDir().

Referenced by _checkAccess(), ilObjFileBasedLMGUI\executeCommand(), ilObjFileBasedLMListGUI\getProperties(), ilObjFileBasedLMGUI\getSettingsFormValues(), ilObjFileBasedLMGUI\getTabs(), ilObjFileBasedLMGUI\initSettingsForm(), and ilObjFileBasedLMGUI\showLearningModule().

    {
        global $DIC;

        $ilDB = $DIC->database();

        if (isset(self::$startfile[$a_id])) {
            $start_file = self::$startfile[$a_id];
        } else {
            $q = "SELECT startfile FROM file_based_lm WHERE id = " . $ilDB->quote($a_id, "integer");
            $set = $ilDB->query($q);
            $rec = $ilDB->fetchAssoc($set);
            $start_file = $rec["startfile"];
            self::$startfile[$a_id] = $start_file . "";
        }
        
        $dir = ilUtil::getWebspaceDir() . "/lm_data/lm_" . $a_id;
        
        if (($start_file != "") &&
            (@is_file($dir . "/" . $start_file))) {
            return "./" . $dir . "/" . $start_file;
        } elseif (@is_file($dir . "/index.html")) {
            return "./" . $dir . "/index.html";
        } elseif (@is_file($dir . "/index.htm")) {
            return "./" . $dir . "/index.htm";
        }

        return "";
    }

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_getCommands()

static ilObjFileBasedLMAccess::_getCommands ( )

static

get commands

this method returns an array of all possible commands/permission combinations

example: $commands = array ( array("permission" => "read", "cmd" => "view", "lang_var" => "show"), array("permission" => "write", "cmd" => "edit", "lang_var" => "edit"), );

Definition at line 100 of file class.ilObjFileBasedLMAccess.php.

Referenced by ilObjFileBasedLMListGUI\init().

    {
        $commands = array(
            array("permission" => "read", "cmd" => "view", "lang_var" => "show",
                "default" => true),
            array("permission" => "write", "cmd" => "edit", "lang_var" => "edit_content"),
            array("permission" => "write", "cmd" => "properties", "lang_var" => "settings")
        );
        
        return $commands;
    }

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_lookupDiskUsage()

static ilObjFileBasedLMAccess::_lookupDiskUsage (   $a_id )

static

Returns the number of bytes used on the harddisk by the learning module with the specified object id.

Parameters

int	object id of a file object.

Definition at line 176 of file class.ilObjFileBasedLMAccess.php.

References ilUtil\dirsize(), and ilUtil\getWebspaceDir().

Referenced by ilObjFileBasedLM\getDiskUsage().

    {
        $lm_data_dir = ilUtil::getWebspaceDir('filesystem') . "/lm_data";
        $lm_dir = $lm_data_dir . DIRECTORY_SEPARATOR . "lm_" . $a_id;
        
        return file_exists($lm_dir) ? ilUtil::dirsize($lm_dir) : 0;
    }

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_preloadData()

static ilObjFileBasedLMAccess::_preloadData (   $a_obj_ids,   $a_ref_ids  )

static

Preload data.

Parameters

array

$a_obj_ids

array of object ids

Definition at line 190 of file class.ilObjFileBasedLMAccess.php.

References $DIC, $ilDB, and $lm_set.

    {
        global $DIC;

        $ilDB = $DIC->database();

        $q = "SELECT id, startfile FROM file_based_lm WHERE " .
            $ilDB->in("id", $a_obj_ids, false, "integer");

        $lm_set = $ilDB->query($q);
        while ($rec = $ilDB->fetchAssoc($lm_set)) {
            self::$startfile[$rec["id"]] = $rec["startfile"] . "";
        }
    }

Field Documentation

$access

ilObjFileBasedLMAccess::$access

protected

Definition at line 36 of file class.ilObjFileBasedLMAccess.php.

Referenced by _checkAccess().

$lng

ilObjFileBasedLMAccess::$lng

protected

Definition at line 26 of file class.ilObjFileBasedLMAccess.php.

Referenced by _checkAccess().

$rbacsystem

ilObjFileBasedLMAccess::$rbacsystem

protected

Definition at line 31 of file class.ilObjFileBasedLMAccess.php.

$startfile

ilObjFileBasedLMAccess::$startfile

static

Definition at line 52 of file class.ilObjFileBasedLMAccess.php.

$user

ilObjFileBasedLMAccess::$user

protected

Definition at line 21 of file class.ilObjFileBasedLMAccess.php.

Referenced by _checkAccess().

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The documentation for this class was generated from the following file:

• Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMAccess.php