ilSetting Class Reference

ILIAS Setting Class. More...

Inheritance diagram for ilSetting:

Collaboration diagram for ilSetting:

Public Member Functions
	ilSetting ($a_module="common", $a_disabled_cache=false)
	Initialize settings. More...
	getModule ()
	Get currernt module. More...
	read ()
	Read settings data. More...
	get ($a_keyword, $a_default_value=false)
	get setting More...
	deleteAll ()
	Delete all settings of a current module. More...
	deleteLike ($a_like)
	Delete all settings corresponding to a like string. More...
	delete ($a_keyword)
	delete one value from settingstable public More...
	getAll ()
	read all values from settingstable public More...
	set ($a_key, $a_val)
	write one value to db-table settings public More...
	setScormDebug ($a_key, $a_val)

Static Public Member Functions
static	_lookupValue ($a_module, $a_keyword)
static	_getValueType ()
	get the type of the value column in the database More...
static	_changeValueType ($a_new_type='text')
	change the type of the value column in the database More...
static	_getLongerSettings ($a_limit='4000')
	get a list of setting records with values loger than a limit More...

Data Fields
	$setting = array()
	$module = ""

Static Private Attributes
static	$settings_cache = array()
	cache for the read settings ilSetting is instantiated more than once per request for some modules The cache avoids reading them from the DB with each instance More...
static	$value_type = NULL
	the type of settings value field in database This is determined in the set method to get a correct DB insert Don't set the value type to force a detection at first access More...

Detailed Description

ILIAS Setting Class.

Author

Alex Killing alex..nosp@m.kill.nosp@m.ing@d.nosp@m.atab.nosp@m.ay.de

Version

$Id$

Definition at line 32 of file class.ilSetting.php.

Member Function Documentation

_changeValueType()

static ilSetting::_changeValueType (   $a_new_type = 'text' )

static

change the type of the value column in the database

Parameters

string

'text' or 'clob'

Returns

bolean type changed or not

Definition at line 292 of file class.ilSetting.php.

References $ilDB.

Referenced by ilSetupGUI\changeSettingsType().

        {
            global $ilDB;

            $old_type = self::_getValueType();

                if ($a_new_type == $old_type)
                {
                return false;
            }
                elseif ($a_new_type == 'clob')
                {
                $ilDB->addTableColumn('settings','value2',
                                                        array(  "type" => "clob",
                                                                        "notnull" => false,
                                                                        "default" => NULL));

                        $ilDB->query("UPDATE settings SET value2 = value");
                        $ilDB->dropTableColumn('settings','value');
                        $ilDB->renameTableColumn('settings','value2','value');

                        return true;
            }
                elseif ($a_new_type == 'text')
                {
                        $ilDB->addTableColumn('settings','value2',
                                                        array(  "type" => "text",
                                                                        "length" => 4000,
                                                                        "notnull" => false,
                                                                        "default" => NULL));

                        $ilDB->query("UPDATE settings SET value2 = value");
                        $ilDB->dropTableColumn('settings','value');
                        $ilDB->renameTableColumn('settings','value2','value');

                        return true;
                }
                else
                {
                return false;
            }
        }

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_getLongerSettings()

static ilSetting::_getLongerSettings (   $a_limit = '4000' )

static

get a list of setting records with values loger than a limit

Parameters

int	character limit (default: 4000)

Returns

array records with longer values

Definition at line 342 of file class.ilSetting.php.

References $ilDB, $query, $result, and $row.

Referenced by ilSetupGUI\changeSettingsType(), and ilSetupGUI\showLongerSettings().

        {
            global $ilDB;

                $settings = array();

                $query = "SELECT * FROM settings WHERE LENGTH(value) > "
                        . $ilDB->quote($a_limit, 'integer');

                $result = $ilDB->query($query);

                while ($row = $ilDB->fetchAssoc($result))
                {
                $settings[] = $row;
            }

                return $settings;
        }

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_getValueType()

static ilSetting::_getValueType ( )

static

get the type of the value column in the database

Returns

string 'text' or 'clob'

Definition at line 269 of file class.ilSetting.php.

References ilDBAnalyzer\getFieldInformation().

Referenced by ilSetupGUI\changeSettingsType(), and ilSetupGUI\initSettingsTypeForm().

        {
                include_once ('./Services/Database/classes/class.ilDBAnalyzer.php');
                $analyzer = new ilDBAnalyzer;
                $info = $analyzer->getFieldInformation('settings');

                if ($info['value']['type'] == 'clob')
                {
                return 'clob';
            }
                else
                {
                return 'text';
            }
        }

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_lookupValue()

static ilSetting::_lookupValue (   $a_module,   $a_keyword  )

static

Definition at line 254 of file class.ilSetting.php.

References $data, $ilDB, $query, and $res.

        {
                global $ilDB;
                
                $query = "SELECT value FROM settings WHERE module = %s AND keyword = %s";
                $res = $ilDB->queryF($query, array('text', 'text'), array($a_module, $a_keyword));
                $data = $ilDB->fetchAssoc($res);
                return $data['value'];
        }

delete()

ilSetting::delete

(

$a_keyword

)

delete one value from settingstable public

Parameters

string

keyword

Returns

string value

Definition at line 185 of file class.ilSetting.php.

References $ilDB.

        {
                global $ilDB;

                $st = $ilDB->manipulate("DELETE FROM settings WHERE keyword = ".
                        $ilDB->quote($a_keyword, "text")." AND module = ".
                        $ilDB->quote($this->module, "text"));

                unset($this->setting[$a_keyword]);

                return true;
        }

deleteAll()

ilSetting::deleteAll

(

)

Delete all settings of a current module.

public

Definition at line 145 of file class.ilSetting.php.

References $ilDB, and $query.

        {
                global $ilDB;
                
                $query = "DELETE FROM settings WHERE module = ".$ilDB->quote($this->module, "text");
                $ilDB->manipulate($query);

                $this->setting = array();

                return true;
        }

deleteLike()

ilSetting::deleteLike

(

$a_like

)

Delete all settings corresponding to a like string.

public

Definition at line 163 of file class.ilSetting.php.

References $ilDB, $query, $res, and $row.

        {
                global $ilDB;

                $query = "SELECT keyword FROM settings".
                        " WHERE module = ".$ilDB->quote($this->module, "text").
                        " AND ".$ilDB->like("keyword", "text", $a_like);
                $res = $ilDB->query($query);
                while($row = $ilDB->fetchAssoc($res))
                {
                        $this->delete($row["keyword"]);
                }
                
                return true;
        }

get()

ilSetting::get	(		$a_keyword,
			$a_default_value = false
	)

get setting

public

Parameters

string	keyword
string	default_value This value is returned, when no setting has been found for the keyword.

Returns

string value

Definition at line 122 of file class.ilSetting.php.

References ILIAS_VERSION.

        {
                if ($a_keyword == "ilias_version")
                {
                        return ILIAS_VERSION;
                }
                
                if (isset($this->setting[$a_keyword]))
                {
                        return $this->setting[$a_keyword];
                }
                else
                {
                        return $a_default_value;
                }
        }

getAll()

ilSetting::getAll

(

)

read all values from settingstable public

Returns

array keyword/value pairs

Definition at line 205 of file class.ilSetting.php.

References $setting.

        {
                return $this->setting;
        }

getModule()

ilSetting::getModule

(

)

Get currernt module.

Definition at line 72 of file class.ilSetting.php.

References $module.

        {
                return $this->module;
        }

ilSetting()

ilSetting::ilSetting	(		$a_module = "common",
			$a_disabled_cache = false
	)

Initialize settings.

Definition at line 55 of file class.ilSetting.php.

References $ilDB, and read().

        {
                global $ilDB;
                
                $this->cache_disabled = $a_disabled_cache;
                $this->module = $a_module;
                // check whether ini file object exists
                if (!is_object($ilDB))
                {
                        die ("Fatal Error: ilSettings object instantiated without DB initialisation.");
                }
                $this->read();
        }

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read()

ilSetting::read

(

)

Read settings data.

Definition at line 80 of file class.ilSetting.php.

References $ilDB, $module, $query, $res, $row, and $setting.

Referenced by ilSetting().

        {
                global $ilDB;
                
                // get the settings from the cache if they exist.
                // The setting array of the class is a reference to the cache.
                // So changing settings in one instance will change them in all.
                // This is the same behaviour as if the are read from the DB.
                if (!$this->cache_disabled)
                {
                        if (isset(self::$settings_cache[$this->module]))
                        {
                                $this->setting =& self::$settings_cache[$this->module];
                                return;
                        }
                        else
                        {
                                $this->setting = array();
                                self::$settings_cache[$this->module] =& $this->setting;
                        }
                }

                $query = "SELECT * FROM settings WHERE module=".$ilDB->quote($this->module, "text");
                $res = $ilDB->query($query);

                while ($row = $ilDB->fetchAssoc($res))
                {
                        $this->setting[$row["keyword"]] = $row["value"];
                }

        }

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set()

ilSetting::set	(		$a_key,
			$a_val
	)

write one value to db-table settings public

Parameters

string	keyword
string	value

Returns

boolean true on success

Definition at line 217 of file class.ilSetting.php.

References $ilDB, $lng, and ilUtil\sendFailure().

Referenced by setScormDebug().

        {
                global $lng, $ilDB;
                
                $this->delete($a_key);

                if (!isset(self::$value_type))
                {
                self::$value_type = self::_getValueType();
            }

                if (self::$value_type == 'text' and strlen($a_val) >= 4000)
                {
                        ilUtil::sendFailure($lng->txt('setting_value_truncated'), true);
                        $a_val = substr($a_val, 0, 4000);
                }

                $ilDB->insert("settings", array(
                        "module" => array("text", $this->module),
                        "keyword" => array("text", $a_key),
                        "value" => array(self::$value_type, $a_val)));

                $this->setting[$a_key] = $a_val;

                return true;
        }

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setScormDebug()

ilSetting::setScormDebug	(		$a_key,
			$a_val
	)

Definition at line 244 of file class.ilSetting.php.

References $ilDB, and set().

        {
                global $ilDB;
                if ($a_val != "1") {
                        $ilDB->query("UPDATE sahs_lm SET debug = 'n'");
                }
                $setreturn = ilSetting::set($a_key, $a_val);
                return $setreturn;
        }

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Field Documentation

$module

ilSetting::$module = ""

Definition at line 50 of file class.ilSetting.php.

Referenced by getModule(), and read().

$setting

ilSetting::$setting = array()

Definition at line 49 of file class.ilSetting.php.

Referenced by getAll(), and read().

$settings_cache

ilSetting::$settings_cache = array()

staticprivate

cache for the read settings ilSetting is instantiated more than once per request for some modules The cache avoids reading them from the DB with each instance

Definition at line 39 of file class.ilSetting.php.

$value_type

ilSetting::$value_type = NULL

staticprivate

the type of settings value field in database This is determined in the set method to get a correct DB insert Don't set the value type to force a detection at first access

Definition at line 46 of file class.ilSetting.php.

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

• Services/Administration/classes/class.ilSetting.php