/**
* Cooperate with data class to fetch items for each page.
* Use sql LIMIT to separate page items.
*
* @return array
*/
protected function __paging()
{
// do paging when have total count
if ($this->totalNum > 0) {
// for paging field
$this->totalPage = $this->totalPage ? $this->totalPage : ceil($this->totalNum / $this->each);
$this->page = $this->page > $this->totalPage ? $this->totalPage : $this->page;
$this->frNum = $this->each * ($this->page - 1);
$this->frStr = $this->frNum + 1;
$this->toNum = $this->page == $this->totalPage ? $this->totalNum : $this->each * $this->page;
$this->toStr = $this->toNum;
for ($i = 1; $i <= $this->totalPage; $i++) {
if ($this->page == $i) {
if (isset($this->pattern['PageTag']) && sizeof($this->pattern['PageTag']) == 2) {
$pages[$i] = $this->pattern['PageTag'][0] . $i . $this->pattern['PageTag'][1];
} else {
$pages[$i] = '<b>' . $i . '</b>';
}
} else {
if ($this->page == $i && $this->totalPage == $i) {
$pages[$i] = $this->totalPage;
} else {
$pages[$i] = $this->makeURL($i);
}
}
}
// provide 3 paging modes
if (isset($this->pattern['Mode'])) {
// init array for mode 3
$pages1 = array();
$pages2 = array();
$pages3 = array();
switch ($this->pattern['Mode']) {
// Google Style Paging
case '1':
$start_pos = $this->page - 10 < 0 ? 0 : $this->page - 10;
$end_pos = $this->page + 9 > $this->totalPage ? $this->totalPage : $this->page + 9;
$pages = Hush_Util::array_chop($pages, $start_pos, $end_pos);
break;
// My Style Paging
// My Style Paging
case '2':
// don't split pages array when total page < 10
$limit = isset($this->pattern['ModeArg']['LIMIT']) ? $this->pattern['ModeArg']['LIMIT'] : 10;
$half_limit = ceil($limit / 2);
if ($this->totalPage > $limit) {
$start_pos = $this->page - $half_limit < 0 ? 0 : $this->page - $half_limit;
$start_pos = $start_pos + $limit > $this->totalPage ? $this->totalPage - $limit : $start_pos;
$pages = array_slice($pages, $start_pos, $limit);
}
break;
case '3':
$split1 = 5;
$split2 = $this->totalPage - 4;
if ($this->totalPage <= 10) {
$pages1 = $pages;
} else {
$i = $this->page;
if ($i > 1 && $i < $this->totalPage) {
$pages2 = array($pages[$i - 1], $pages[$i], $pages[$i + 1]);
} else {
$pages2 = array($pages[$i]);
}
$pages1 = array_slice($pages, 0, 3);
$pages3 = array_slice($pages, -3, 3);
if ($this->page <= $split1) {
$pages1 = array_unique(array_merge($pages1, $pages2));
$pages2 = $pages3;
$pages3 = array();
} elseif ($this->page >= $split2) {
if ($this->page != $this->totalPage) {
$pages2 = array_unique(array_merge($pages2, $pages3));
} else {
$pages2 = array_unique(array_merge($pages3, $pages2));
}
$pages3 = array();
}
}
// Show All Paging
// Show All Paging
default:
break;
}
// build paging string
$spacing = array_key_exists('Spacing', $this->pattern) ? $this->pattern['Spacing'] : ' ';
if ($this->pattern['Mode'] == 3) {
$this->pageStr = implode($spacing, $pages1);
if (sizeof($pages2)) {
$this->pageStr .= ' ... ' . implode($spacing, $pages2);
}
if (sizeof($pages3)) {
$this->pageStr .= ' ... ' . implode($spacing, $pages3);
}
} else {
$this->pageStr = implode($spacing, $pages);
}
}
// get page array
if (is_array($this->items)) {
for ($i = $this->frNum; $i < $this->toNum; $i++) {
$this->pageArr[] = $this->items[$i];
}
}
} else {
$this->frNum = $this->each * ($this->page - 1);
$this->frStr = $this->frNum + 1;
$this->toNum = $this->each * $this->page;
$this->toStr = $this->toNum;
}
// for prev/next field
if (1) {
$prevStr = array_key_exists('Prev', $this->pattern) ? $this->pattern['Prev'] : $this->prevStr;
$nextStr = array_key_exists('Next', $this->pattern) ? $this->pattern['Next'] : $this->nextStr;
if ($this->page != 1) {
$page = $this->page - 1;
$this->prevStr = $this->makeURL($page, $prevStr);
} else {
if (!array_key_exists('TrimPag', $this->pattern)) {
$this->prevStr = $prevStr;
} else {
$this->prevStr = '';
}
}
if ($this->page != $this->totalPage) {
$page = $this->page + 1;
$this->nextStr = $this->makeURL($page, $nextStr);
} else {
if (!array_key_exists('TrimPag', $this->pattern)) {
$this->nextStr = $nextStr;
} else {
$this->nextStr = '';
}
}
}
// return builded paging array
return $this->toArray();
}