_res/_libs/tspaginator.class.php

   1 <?php
   2 // the url variable
   3 define ('PAG_VAR', 'pag');
   4 define ('PAG_COUNT', 3);//
   5 define ('PAG_ORDER', 'o');
   6 /**
   7  * @desc Decorator class for tdoAbstract
   8  */
   9
  10 class tsPaginator {
  11         public $start, $count, $page, $order;
  12         /**
  13          * @var tdoAbstract
  14          */
  15         protected $tdo;
  16
  17         public function __construct () {
  18                 $this->getPaginationVariables ();
  19         }
  20         public function __destruct () {}
  21
  22         public function getTotal () {
  23                 // getting the number of elements
  24                 if (empty ($this->total)) {
  25                         $this->total = $this->tdo->getCount ();
  26                 }
  27                 return $this->total;
  28         }
  29
  30         public function addObject (&$object) {
  31                 if (!($object instanceof tdoAbstract))
  32                         return false;
  33                 $this->tdo = &$object;
  34
  35                 if (!empty ($this->order))
  36                         $this->addOrder ();
  37                 if (!empty ($this->start))
  38                         $this->addLimit ();
  39         }
  40
  41         protected function getStart () {
  42                 if ((int)$this->page <= 0) {
  43                         $this->page = 1;
  44                 }
  45                 // calculate the limit based on $total count of items and the pagination
  46                 return $this->count * ($this->page-1) /*/+ 1/**/;
  47         }
  48
  49         public function getPaginationVariables () {
  50                 // get the page variables: URL?p=?
  51                 $this->count    = PAG_COUNT;
  52                 $this->page             = tsController::getRequest (PAG_VAR);
  53
  54                 $this->start    = $this->getStart ();
  55
  56                 // get the ORDER BY variables: URL?o=column_name:(bool)ASC
  57                 $o = tsController::getRequest (PAG_ORDER);
  58                 if (!empty ($o))
  59                         $this->order    = explode (':', $o);
  60
  61         }
  62         public function outputOrderHeaders () {
  63                 return;
  64         }
  65
  66         public function outputPagination () {
  67                 $retVal = $left = $right = '';
  68                 // this should happen after we made all our stuff with the tdo (joins, wheres, orders..bla)
  69                 // how many stuff we got
  70                 $t = $this->getTotal();
  71                 $cnt    = ceil ($this->getTotal () / $this->count);
  72                 $here   = tsController::getRequest(NAV_VAR);
  73
  74                 for ($i=1; $i <= $cnt; $i++) {
  75                         $r = tsController::setRequest($here, array(PAG_VAR => $i));
  76                         if ($i != $this->page)
  77                                 $retVal .= '<a href="' . tsController::setRequest($here, array(PAG_VAR => $i)) . '">'.$i.'</a> ';
  78                         else
  79                                 $retVal .= $i.' ';
  80                 }
  81
  82                 if ($this->page > 1)
  83                         $left   = '<a href="'.tsController::setRequest($here, array (PAG_VAR => $this->page-1)).'">&laquo;</a> ';
  84
  85                 if ($this->page < $cnt)
  86                         $right  = '<a href="'.tsController::setRequest($here, array (PAG_VAR => $this->page+1)).'">&raquo;</a>';;
  87
  88                 return $left . $retVal . $right;
  89         }
  90
  91         public function addOrder () {
  92                 if ($this->tdo instanceof tdoAbstract && !empty ($this->order)) {
  93                         $fieldName = $this->order[0];
  94                         $order = (bool)$this->order[1];  // if we have no value we treat it as DESC
  95
  96                         $this->tdo->addOrder ($fieldName, $order);
  97                 }
  98         }
  99
 100         public function addLimit () {
 101                 if ($this->tdo instanceof tdoAbstract) {
 102 //                      $this->tdo->addLimit ($this->start, $this->count);
 103                 }
 104         }
 105 }