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new module creation

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mcfly
2006-12-02 04:36:16 +00:00
commit e149b35fcc
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e107_handlers/pref_class.php Normal file
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<?php
/*
+---------------------------------------------------------------+
| e107 website system
| /e107_handlers/pref_class.php
|
| <20>Steve Dunstan 2001-2002
| http://e107.org
| jalist@e107.org
|
| Released under the terms and conditions of the
| GNU General Public License (http://gnu.org).
+---------------------------------------------------------------+
*/
if (!defined('e107_INIT')) { exit; }
//
// Simple functionality:
// Grab all prefs once, in one DB query. Reuse them throughout the session.
//
// get/set methods serve/consume strings (with slashes taken care of)
// getArray/setArray methods serve/consume entire arrays (since most prefs are such!)
//
// NOTE: Use of this class is VALUABLE (efficient) yet not NECESSARY (i.e. the system
// will not break if it is ignored)... AS LONG AS there is no path consisting of:
// - modify pref value(s) IGNORING this class
// - retrieve pref value(s) USING this class
// (while processing a single web page)
// Just to be safe I have changed a number of menu_pref edits to use setArray().
//
class prefs {
var $prefVals;
var $prefArrays;
// List of rows that shouldn't be automatically extracted (delimeted by '|')
var $DefaultRows = "e107_name='e107' OR e107_name='menu_pref' OR e107_name='notify_prefs'";
function ExtractPrefs($RowList = "", $use_default = FALSE) {
global $sql;
$Args = '';
if($use_default)
{
$Args = $this->DefaultRows;
}
if(is_array($RowList))
{
foreach($RowList as $v)
{
$Args .= ($Args ? " OR e107_name='{$v}'" : "e107_name='{$v}'");
}
}
$sql->db_Select('core', '*', $Args, 'default');
while ($row = $sql->db_Fetch())
{
$this->prefVals['core'][$row['e107_name']] = $row['e107_value'];
}
}
/**
* Return current pref string $name from $table (only core for now)
*
* - @param string $name -- name of pref row
* - @param string $table -- "core"
* - @return string pref value, slashes already stripped
* - @access public
*/
function get($Name) {
if(isset($this->prefVals['core'][$Name])){
if($this->prefVals['core'][$Name] != '### ROW CACHE FALSE ###'){
return $this->prefVals['core'][$Name];
} else {
return false;
}
}
$get_sql = new db; // required so sql loops don't break using $tp->toHTML().
if($get_sql->db_Select('core', '*', "`e107_name` = '{$Name}'", 'default')) {
$row = $get_sql->db_Fetch();
$this->prefVals['core'][$Name] = $row['e107_value'];
return $this->prefVals['core'][$Name];
} else {
$this->prefVals['core'][$Name] = '### ROW CACHE FALSE ###';
return false;
}
}
/**
* Return current array from pref string $name in $table (core only for now)
*
* - @param: string $name -- name of pref row
* - @param string $table -- "core" only now
* - @return array pref values
* - @access public
*/
// retrieve prefs as an array of values
function getArray($name) {
return unserialize($this->get($name));
}
/**
* Update pref set and cache
*
* @param string val -- pre-serialized string
* @param string $name -- name of pref row
* @param string $table -- "core" or "user"
* @global $$name
* @access public
*
* set("val") == 'core', 'pref'
* set("val","rowname") == 'core', rowname
* set("val","","user") == 'user', 'user_pref' for current user
* set("val","","user",uid) == 'user', 'user_pref' for user uid
* set("val","fieldname","user") == 'user', fieldname
*
*/
function set($val, $name = "", $table = "core", $uid = USERID) {
global $sql;
if (!strlen($name)) {
switch ($table) {
case 'core':
$name = "pref";
break;
case 'user':
$name = "user_pref";
break;
}
}
$val = addslashes($val);
switch ($table ) {
case 'core':
if(!$sql->db_Update($table, "e107_value='$val' WHERE e107_name='$name'"))
{
$sql->db_Insert($table, "'{$name}', '{$val}'");
}
$this->prefVals[$table][$name] = $val;
unset($this->prefArrays[$table][$name]);
break;
case 'user':
$sql->db_Update($table, "user_prefs='$val' WHERE user_id=$uid");
break;
}
}
/**
* Update pref set and cache
*
* - @param string $name -- name of pref row
* - @param string $table -- "core" or "user"
* - @global $$name
* - @access public
*
* set() == core, pref
* set("rowname") == core, rowname
* set("","user") == user, user_pref for current user
* set("","user",uid) == user, user_pref for user uid
* set("fieldname","user") == user, fieldname
*
* all pref sets other than menu_pref get toDB()
*/
function setArray($name = "", $table = "core", $uid = USERID) {
global $tp;
if (!strlen($name)) {
switch ($table) {
case 'core':
$name = "pref";
break;
case 'user':
$name = "user_pref";
break;
}
}
global $$name;
if ($name != "menu_pref") {
foreach($$name as $key => $prefvalue) {
$$name[$key] = $tp->toDB($prefvalue);
}
}
$tmp = serialize($$name);
$this->set($tmp, $name, $table, $uid);
}
}
?>