_res/_libs/tspaginator.class.php

   1 <?php
   2 // the url variable
   3 define ('PAG_VAR', 'pag');
   4 define ('PAG_COUNT', 10);//
   5 define ('PAG_ORDER', 'o');
   6 /**
   7  * @desc Decorator class for tdoAbstract
   8  */
   9
  10 class tsPaginator {
  11         private $start, $count, $total, $page, $order;
  12         /**
  13          * @var tdoAbstract
  14          */
  15         protected $tdo;
  16
  17         public function __construct () {
  18                 $this->getPaginationVariables ();
  19         }
  20         public function __destruct () {}
  21
  22         public function setCount ($int) {
  23                 $this->count = $int;
  24                 $this->start = $this->getStart();
  25         }
  26
  27         public function outputOrderHeaders () {
  28                 return;
  29         }
  30
  31         public function outputPagination () {
  32                 $retVal = $left = $right = '';
  33                 // this should happen after we made all our stuff with the tdo (joins, wheres, orders..bla)
  34                 // how many stuff we got
  35                 $t = $this->getTotal();
  36                 $cnt    = ceil ($this->getTotal () / $this->count);
  37                 $here   = tsController::getRequest(NAV_VAR);
  38
  39                 for ($i=1; $i <= $cnt; $i++) {
  40                         $r = tsController::setRequest($here, array(PAG_VAR => $i));
  41                         if ($i != $this->page)
  42                                 $retVal .= '<a href="' . tsController::setRequest($here, array(PAG_VAR => $i)) . '">'.$i.'</a> ';
  43                         else
  44                                 $retVal .= $i.' ';
  45                 }
  46
  47                 // this will be replaced by the helper functionality of using templates :D
  48                 if ($this->page > 1)
  49                         $left   = '<span class="paginator_left"><a href="'.tsController::setRequest($here, array (PAG_VAR => $this->page-1)).'">&laquo;</a></span> ';
  50                 else
  51                         $left   = '<span class="paginator_left">&laquo;</span> ';
  52                 if ($this->page < $cnt)
  53                         $right  = '<span class="paginator_left"><a href="'.tsController::setRequest($here, array (PAG_VAR => $this->page+1)).'">&raquo;</a></span>';
  54                 else
  55                         $right  = '<span class="paginator_right">&raquo;</span>';
  56
  57                 return $left . $retVal . $right;
  58         }
  59
  60         public function addObject (&$object) {
  61                 if (!($object instanceof tdoAbstract))
  62                         return false;
  63                 $this->tdo = &$object;
  64
  65                 if (!empty ($this->order))
  66                         $this->addOrder ();
  67 //              if (!empty ($this->start))
  68                         $this->addLimit ();
  69         }
  70
  71         protected function getTotal () {
  72                 // getting the number of elements
  73                 if (empty ($this->total) && ($this->tdo instanceof tdoAbstract)) {
  74                         $this->total = (int)$this->tdo->getCount ();
  75                 }
  76                 return (int)$this->total;
  77         }
  78
  79         protected function getStart () {
  80                 if ((int)$this->page <= 0 /*/||
  81                         (int)$this->start > $this->getTotal()/**/
  82                 ) {
  83                         $this->page = 1;
  84                 }
  85 //              $this->start =
  86                 // calculate the limit based on $total count of items and the pagination
  87                 return $this->count * ($this->page-1) /*/+ 1/**/;//$this->start;
  88         }
  89
  90         protected function getPaginationVariables () {
  91                 // get the page variables: URL?p=?
  92                 if (empty($this->count))
  93                         $this->count = PAG_COUNT;
  94
  95                 $this->page             = (int)tsController::getRequest (PAG_VAR);
  96
  97                 $this->start    = $this->getStart ();
  98
  99                 // get the ORDER BY variables: URL?o=column_name:(bool)ASC
 100                 $o = tsController::getRequest (PAG_ORDER);
 101
 102                 if (!empty ($o))
 103                         $this->order    = explode (':', $o);
 104
 105         }
 106
 107         protected function addOrder () {
 108                 // this is dumb as it requires a column name to comre from user input
 109                 if ($this->tdo instanceof tdoAbstract && !empty ($this->order)) {
 110                         $fieldName = $this->order[0];
 111                         $order = (bool)$this->order[1];  // if we have no value we treat it as DESC
 112
 113 //                      $this->tdo->addOrder ($fieldName, $order);
 114                 }
 115         }
 116
 117         protected function addLimit () {
 118 //              var_dump($this->start, $this->count);
 119                 if ($this->tdo instanceof tdoAbstract) {
 120                         $this->tdo->addLimit ($this->start, $this->count);
 121                 }
 122         }
 123 }