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07-03-2007, 16:23
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חבר מתאריך: 17.05.04
הודעות: 1,454
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מחלקה - סקר
כתוצאה מבקשות רבות לסקר, החלטתי לפרסם כאן קוד של סקר שבניתי לא ממזמן (יש לציין כי המחלקה משתמשת במחלקות אחרות שלי) :
קוד PHP:
<?php
class phpp_Exception extends Exception{
private $class;
## sets Exception's constructor and sets the custom Exception
# null
function __construct($message = false, $code, $class){
parent::__construct($message, $code);
$this->class = $class;
}
## null
# Exception's class
public function getClass(){
return $this->class;
}
}
class phpp_filter{
## timestamp validation
# boolean
static public function timestamp($timestamp){
switch(gettype($timestamp)){
case 'string':
if(!$timestamp = strtotime($timestamp));
throw new phpp_Exception('Cannot translate the given var into unix timestamp', 3, __CLASS__);
break;
case 'integer':
break;
default:
throw new phpp_Exception('Cannot translate the given var into unix timestamp', 3, __CLASS__);
}
return $timestamp;
}
## email validation
# valid - email; other - false.
static public function email($str){
return (preg_match("/^[\w\-\.]+\@[\w\-\.]+\.[\w\-]+$/i",$str)) ? ($str) : (false);
}
## tags stripping
# stripped string
static public function notags($str){
return (is_string($str)) ? ($str = strip_tags(strip_tags($str))) : (false);
}
## addslashes
# slashed string
static public function xss($str){
return (is_string($str)) ? ($str = addslashes($str)) : (false);
}
## numerical letters
# numerical letter given in the argumant
static public function numeric($var){
return (is_numeric($var)) ? ($var) : ((is_string($var)) ? ($var = preg_replace('/[^\d]/', '', $var)) : (false));
}
## alphabetical letters
# alphabetical letters given in the argumant
static public function alphabetic($var){
return (is_string($var)) ? ($var = preg_replace("/[^[:alpha:]]/", '', $var)) : (false);
}
}
class phpp_db{
public $queryNum;
private $key, $queryResource;
## host and db settings
# host resource
function __construct($db = false, $user = 'root', $host = 'localhost', $pass = null){
if(!$this->key = @mysql_pconnect($host, $user, $pass))
throw new phpp_Exception('Cannot connect into the given host ('.$host.')', 0, __CLASS__);
if(trim($db) && !@mysql_select_db($db, $this->key))
throw new phpp_Exception('Cannot connect into the given database('.$db.')', 1, __CLASS__);
}
## queries the given string and argumants
# queryResource - can be used for the fetch.
public function query($query){
if(($type = gettype($query)) != 'string')
throw new phpp_Exception('Unsupported query type was given ('.$type.')', 2, __CLASS__);
foreach(array_slice(func_get_args(), 1) as $value){
switch($type = gettype($value)){
case 'object':
$value = get_object_vars($value);
case 'array':
while(list($key, $val) = each($value))
$query = preg_replace("/\[:".$key.":]/", $val, $query);
break;
case 'string':
case 'integer':
$query = sprintf($query, $value);
break;
default:
throw new phpp_Exception('Unsupported argumant type was given ('.$type.')', 3, __CLASS__);
}
}
if(!$this->queryResource = mysql_query($query, $this->key))
throw new phpp_Exception('Cannot query the given string - $query ('.mysql_error().')', 4, __CLASS__);
return $this->queryResource;
}
## fetches the query resource
# the fetched data - according to the method
public function fetchResult($query = false, $method = 'object'){
if(!$this->queryResource = ($query) ? ((is_resource($query)) ? $query : $this->query($query)) : (isset($this->queryResource) ? ($this->queryResource) : (false)))
throw new phpp_Exception('Given query isn\'t a resource, as a result can\'t fetch', 5, __CLASS__);
switch($method){
case 'num':
$queryFetch = @mysql_num_rows($this->queryResource);
break;
case 'affected':
$queryFetch = @mysql_affected_rows($this->key);
break;
case 'insertID':
$queryFetch = @mysql_insert_id($this->key);
break;
case 'object':
case 'array':
case 'assoc':
case 'row':
case 'lengths':
$method = 'mysql_fetch_'.$method;
$queryFetch = @$method($this->queryResource);
break;
default:
throw new phpp_Exception('Unsupported fetch method was given', 6, __CLASS__);
}
return $queryFetch;
}
function __destruct(){
mysql_close($this->key);
unset($this);
}
}
/*
CREATE TABLE `polls` (
`title` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`total` INT( 11 ) NOT NULL ,
`id` INT( 8 ) NOT NULL AUTO_INCREMENT PRIMARY KEY
) ENGINE = innodb CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE TABLE `poll_options` (
`title` VARCHAR( 50 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`votes` INT( 11 ) NOT NULL ,
`pid` INT( 8 ) NOT NULL ,
`id` INT( 8 ) NOT NULL AUTO_INCREMENT PRIMARY KEY
) ENGINE = innodb CHARACTER SET utf8 COLLATE utf8_unicode_ci;
*/
class phpp_poll{
private $poll, $db;
function __construct($poll, $persistant = false){
$this->db = new phpp_db('phpp_poll');
if($persistant && is_string($poll)){
$this->db->query("INSERT INTO `polls` (`title`) VALUES ('%s')", phpp_filter::xss($poll));
$poll = $this->db->fetchResult(false, 'insertID');
}
switch(gettype($poll)){
case 'integer':
$poll = $this->db->query("SELECT polls.* FROM `polls` WHERE polls.id = '%s'", $poll);
case 'resource':
$this->poll = ($this->db->fetchResult($poll, 'num')) ? ($this->db->fetchResult($poll)) : (false);
break;
default:
throw new phpp_Exception('Unsupported type was given', 0, __CLASS__);
}
if(!$this->poll)
throw new phpp_Excpetion('given poll doesn\'t exists in the database', 1, __CLASS__);
}
## null
# current poll's data - object
public function getData(){
return $this->poll;
}
## queries the given option(s)
# the option(s) - if opID is int - object, boolean - array with the poll's assigned options
public function getOpts($opID = false){
switch(gettype($opID)){
case 'integer':
$this->db->query("SELECT poll_options.* FROM `poll_options` WHERE poll_options.id = '%s' AND poll_options.pid = '[:id:]'", (integer) $opID, $this->poll);
$options = $this->db->fetchResult();
break;
case 'boolean':
$this->db->query("SELECT poll_options.* FROM `poll_options` WHERE poll_options.pid = '[:id:]'", $this->poll);
while($option = $this->db->fetchResult())
$options[$option->id] = $option;
break;
default:
throw new phpp_Exception('Unsupported type was given', 0, __CLASS__);
}
return $options;
}
## queries the current poll's options
# the percentage of each option
public function getPercentage(){
foreach($this->getOpts() as $id => $option)
$options[$option->title] = round(($option->votes * 100) / $this->poll->total);
return $options;
}
## votes to the given option - only if is assigned to the current poll
# true on sucsess, false on failure
public function vote($opID){
$this->db->query("UPDATE `poll_options`, `polls` SET polls.total = polls.total +1, poll_options.votes = poll_options.votes +1 WHERE poll_options.id = '%s' AND poll_options.pid = '[:id:]'", (integer) $opID, $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## assigns the given option
# true on sucsess, false on failure
public function assignOpt($str){
$this->db->query("INSERT INTO `poll_options` (poll_options.title, poll_options.pid) VALUES('%s', '[:id:]')", phpp_filter::xss($str), $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## updates the given option - only if assigned to the current poll
# true on success, false on failure
public function updateOpt($opID, $str){
$this->db->query("UPDATE `poll_options` SET poll_options.title = '%s' WHERE poll_options.od = %s AND poll_options.pid = [:id:]", phpp_filter::xss($str), (integer) $opID, $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## updates the current poll's title
# true on success, false on failure
public function updateTitle($str){
$this->db->query("UPDATE `polls` SET polls.title = '%s' WHERE polls.id = '[:id:]'", phpp_filter::xss($str), $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## delete the given option - only if assigned to the current poll
# true on sucsess, false on failure
public function delOpt($opID){
$this->db->query("DELETE poll_options.* FROM `poll_options` WHERE poll_options.pid = '[:id:]' AND poll_options.id = '%s'", $this->poll, (integer) $opID);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## deletes the given poll
# true on sucsess, false on failure
public function del(){
$this->db->query("DELETE polls.*, poll_options.* FROM `polls`, `poll_options` WHERE polls.id = poll_options.pid = '[:id:]'", $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
public function __destruct(){
unset($this);
}
}
?>
התכלס סקר ללא שאר המחלקות:
קוד PHP:
class phpp_poll{
private $poll, $db;
function __construct($poll, $persistant = false){
$this->db = new phpp_db('phpp_poll');
if($persistant && is_string($poll)){
$this->db->query("INSERT INTO `polls` (`title`) VALUES ('%s')", phpp_filter::xss($poll));
$poll = $this->db->fetchResult(false, 'insertID');
}
switch(gettype($poll)){
case 'integer':
$poll = $this->db->query("SELECT polls.* FROM `polls` WHERE polls.id = '%s'", $poll);
case 'resource':
$this->poll = ($this->db->fetchResult($poll, 'num')) ? ($this->db->fetchResult($poll)) : (false);
break;
default:
throw new phpp_Exception('Unsupported type was given', 0, __CLASS__);
}
if(!$this->poll)
throw new phpp_Excpetion('given poll doesn\'t exists in the database', 1, __CLASS__);
}
## null
# current poll's data - object
public function getData(){
return $this->poll;
}
## queries the given option(s)
# the option(s) - if opID is int - object, boolean - array with the poll's assigned options
public function getOpts($opID = false){
switch(gettype($opID)){
case 'integer':
$this->db->query("SELECT poll_options.* FROM `poll_options` WHERE poll_options.id = '%s' AND poll_options.pid = '[:id:]'", (integer) $opID, $this->poll);
$options = $this->db->fetchResult();
break;
case 'boolean':
$this->db->query("SELECT poll_options.* FROM `poll_options` WHERE poll_options.pid = '[:id:]'", $this->poll);
while($option = $this->db->fetchResult())
$options[$option->id] = $option;
break;
default:
throw new phpp_Exception('Unsupported type was given', 0, __CLASS__);
}
return $options;
}
## queries the current poll's options
# the percentage of each option
public function getPercentage(){
foreach($this->getOpts() as $id => $option)
$options[$option->title] = round(($option->votes * 100) / $this->poll->total);
return $options;
}
## votes to the given option - only if is assigned to the current poll
# true on sucsess, false on failure
public function vote($opID){
$this->db->query("UPDATE `poll_options`, `polls` SET polls.total = polls.total +1, poll_options.votes = poll_options.votes +1 WHERE poll_options.id = '%s' AND poll_options.pid = '[:id:]'", (integer) $opID, $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## assigns the given option
# true on sucsess, false on failure
public function assignOpt($str){
$this->db->query("INSERT INTO `poll_options` (poll_options.title, poll_options.pid) VALUES('%s', '[:id:]')", phpp_filter::xss($str), $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## updates the given option - only if assigned to the current poll
# true on success, false on failure
public function updateOpt($opID, $str){
$this->db->query("UPDATE `poll_options` SET poll_options.title = '%s' WHERE poll_options.od = %s AND poll_options.pid = [:id:]", phpp_filter::xss($str), (integer) $opID, $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## updates the current poll's title
# true on success, false on failure
public function updateTitle($str){
$this->db->query("UPDATE `polls` SET polls.title = '%s' WHERE polls.id = '[:id:]'", phpp_filter::xss($str), $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## delete the given option - only if assigned to the current poll
# true on sucsess, false on failure
public function delOpt($opID){
$this->db->query("DELETE poll_options.* FROM `poll_options` WHERE poll_options.pid = '[:id:]' AND poll_options.id = '%s'", $this->poll, (integer) $opID);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
## deletes the given poll
# true on sucsess, false on failure
public function del(){
$this->db->query("DELETE polls.*, poll_options.* FROM `polls`, `poll_options` WHERE polls.id = poll_options.pid = '[:id:]'", $this->poll);
return ($this->db->fetchResult(false, 'affected')) ? true : false;
}
public function __destruct(){
unset($this);
}
}
לצפיה בדף נפרד
3 המחלקות המופיעות (חוץ מזו של הסקר) נמצאות בשימוש במחלקה, אך אפשרי כמובן לשנות את זה כך ששלוש המחלקות לא יהיו נחוצות.
אפשרויות
הוספת אפשרות:
קוד PHP:
$poll->assignOpt('MyOption') // assigns an option with the title 'MyOption' - auto id
עדכון אפשרות:
קוד PHP:
$poll->updateOpt(1, 'MySpecialOption') // changes opt.1 title into MySpecialOption - Only if opt.1 is assigned to the current poll
מחיקת אפשרות:
קוד PHP:
$poll->deleteOpt(1) // deletes opt.1 - only if assigned to the current poll
הצבעה
קוד PHP:
$poll->vote(1); // votes opt.1 - only if assigned to the current poll
הסקר
פניה והוספת סקר:
קוד PHP:
$poll = new phpp_poll(1) // getting poll no.1 - if doesn't exists - Exception(1)
$poll = new phpp_poll('Mypoll', true) // setting up a poll with the title Mypoll - auto id - no options yet.
$poll = new phpp_poll('Mypoll') // Exception(0)
מחיקת הסקר:
קוד PHP:
$poll->del() // deletes the current poll
שינוי כותרת הסקר:
קוד PHP:
$poll->updateTitle('myTitle') // changes the current poll's title in to myTitle
קבלת אפשרויות הסקר:
קוד PHP:
$poll->getOpts() // returns an array with the options and their data (data as an object)$poll->getOpts(1) // returns the data of opt.1 (data as an object)
קבלת אחוזי אפשרויות הסקר:
קוד PHP:
$poll->getPercentage() // returnes an array with the percentage for each option
קבלת מידע הסקר:
קוד PHP:
$poll->getData() // returns an object with the current poll's data
אשמח אם תחפשו באגים, הציעו הצעות, העירו הערות וכדו'..
יש לציין כי מסיבה שאינה ידועה לי, כאשר שולפים את אחוזי אפשרויות הסקר, זה מתעוות אם מתישהו בזמן הריצה התרחשה הצבעה לאפשרות כלשהיא.
אשמח לעזרה בעניין התקלה.
מקווה שעזרתי (במיוחד לאלה שתמיד שואלים ל-סקר) 
_____________________________________
EVERYTHING SHOULD BE MADE AS SIMPLE AS POSSIBLE, BUT NOT ONE BIT SIMPLER
ALBERT EINSTEIN
נערך לאחרונה ע"י Rs3k בתאריך 07-03-2007 בשעה 16:36.
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