<?php
/**
* Example Datasource
*
* @package A_Pager
*/
class Datasource implements A_Pagination_Adapter {
protected $data;
protected $order_by_field = '';
protected $order_by_descending = 0;
public function __construct($data) {
$this->data = $data;
}
public function getNumItems() {
return count($this->data);
}
public function getItems($start, $size) {
$max = count($this->data);
if (($max > 0) && ($start > 0) && ($size > 0)) {
$this->orderBy();
return array_slice($this->data, $start-1, $size);
}
}
public function setOrderBy($field, $descending=false) {
$this->order_by_field = $field;
$this->order_by_descending = $descending;
return $this;
}
public function orderBy() {
global $A_Pager_Array_Cmp_Key;
if ($this->order_by_field) {
$A_Pager_Array_Cmp_Key = $this->order_by_field;
$reverse = ($this->order_by_descending ? '_reverse' : '');
if (is_string($this->data[0][$A_Pager_Array_Cmp_Key])) {
usort($this->data, "pageable_array_cmp_string$reverse");
} else {
usort($this->data, "pageable_array_cmp_number$reverse");
}
}
return $this;
}
public function getOrderBy() {
return $this->order_by_field . ($this->order_by_descending ? '_desc' : '');
}
}
$A_Pager_Array_Cmp_Key = '';
function pageable_array_cmp_string($a, $b)
{
global $A_Pager_Array_Cmp_Key;
return strcmp($a[$A_Pager_Array_Cmp_Key], $b[$A_Pager_Array_Cmp_Key]);
}
function pageable_array_cmp_number($a, $b)
{
global $A_Pager_Array_Cmp_Key;
return $a[$A_Pager_Array_Cmp_Key] > $b[$A_Pager_Array_Cmp_Key];
}
function pageable_array_cmp_string_reverse($a, $b)
{
global $A_Pager_Array_Cmp_Key;
return strcmp($b[$A_Pager_Array_Cmp_Key], $a[$A_Pager_Array_Cmp_Key]);
}
function pageable_array_cmp_number_reverse($a, $b)
{
global $A_Pager_Array_Cmp_Key;
return $a[$A_Pager_Array_Cmp_Key] < $b[$A_Pager_Array_Cmp_Key];
}
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