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More refactoring on paginator.

This commit is contained in:
Taylor Otwell 2011-07-25 14:07:46 -07:00
parent 7191a67680
commit e9397b7107
1 changed files with 49 additions and 46 deletions
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95
system/paginator.php
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@ -30,6 +30,13 @@ class Paginator {
*/ */
public $per_page; public $per_page;
/**
* The last page available for the result set.
*
* @var int
*/
public $last_page;
/** /**
* The language that should be used when generating page links. * The language that should be used when generating page links.
* *
@ -41,22 +48,40 @@ class Paginator {
* Create a new Paginator instance. * Create a new Paginator instance.
* *
* @param array $results * @param array $results
* @param int $page
* @param int $total * @param int $total
* @param int $per_page * @param int $per_page
* @param int $last_page
* @return void * @return void
*/ */
public function __construct($results, $total, $per_page) public function __construct($results, $page, $total, $per_page, $last_page)
{ {
$this->page = static::page($total, $per_page); $this->last_page = $last_page;
$this->per_page = $per_page; $this->per_page = $per_page;
$this->results = $results; $this->results = $results;
$this->total = $total; $this->total = $total;
$this->page = $page;
}
/**
* Create a new Paginator instance.
*
* @param array $results
* @param int $total
* @param int $per_page
* @return Paginator
*/
public static function make($results, $total, $per_page)
{
return new static($results, static::page($total, $per_page), $total, $per_page, ceil($total / $per_page));
} }
/** /**
* Get the current page from the request query string. * Get the current page from the request query string.
* *
* The page will be validated and adjusted if it is less than one or greater than the last page. * The page will be validated and adjusted if it is less than one or greater than the last page.
* For example, if the current page is not an integer or less than one, one will be returned.
* If the current page is greater than the last page, the last page will be returned.
* *
* @param int $total * @param int $total
* @param int $per_page * @param int $per_page
@ -82,7 +107,7 @@ public static function page($total, $per_page)
*/ */
public function links($adjacent = 3) public function links($adjacent = 3)
{ {
return ($this->last_page() > 1) ? '<div class="pagination">'.$this->previous().$this->numbers($adjacent).$this->next().'</div>' : ''; return ($this->last_page > 1) ? '<div class="pagination">'.$this->previous().$this->numbers($adjacent).$this->next().'</div>' : '';
} }
/** /**
@ -95,7 +120,7 @@ public function links($adjacent = 3)
*/ */
private function numbers($adjacent = 3) private function numbers($adjacent = 3)
{ {
return ($this->last_page() < 7 + ($adjacent * 2)) ? $this->range(1, $this->last_page()) : $this->slider($adjacent); return ($this->last_page < 7 + ($adjacent * 2)) ? $this->range(1, $this->last_page) : $this->slider($adjacent);
} }
/** /**
@ -110,14 +135,12 @@ private function slider($adjacent)
{ {
return $this->range(1, 2 + ($adjacent * 2)).$this->ending(); return $this->range(1, 2 + ($adjacent * 2)).$this->ending();
} }
elseif ($this->page >= $this->last_page() - ($adjacent * 2)) elseif ($this->page >= $this->last_page - ($adjacent * 2))
{ {
return $this->beginning().$this->range($this->last_page() - 2 - ($adjacent * 2), $this->last_page()); return $this->beginning().$this->range($this->last_page - 2 - ($adjacent * 2), $this->last_page);
}
else
{
return $this->beginning().$this->range($this->page - $adjacent, $this->page + $adjacent).$this->ending();
} }
return $this->beginning().$this->range($this->page - $adjacent, $this->page + $adjacent).$this->ending();
} }
/** /**
@ -141,7 +164,7 @@ public function next()
{ {
$text = Lang::line('pagination.next')->get(); $text = Lang::line('pagination.next')->get();
return ($this->page < $this->last_page()) ? $this->link($this->page + 1, $text, 'next_page') : HTML::span($text, array('class' => 'disabled next_page')); return ($this->page < $this->last_page) ? $this->link($this->page + 1, $text, 'next_page') : HTML::span($text, array('class' => 'disabled next_page'));
} }
/** /**
@ -151,7 +174,7 @@ public function next()
*/ */
private function beginning() private function beginning()
{ {
return $this->range(1, 2).$this->dots(); return $this->range(1, 2).'<span class="dots">...</span>';
} }
/** /**
@ -161,40 +184,7 @@ private function beginning()
*/ */
private function ending() private function ending()
{ {
return $this->dots().$this->range($this->last_page() - 1, $this->last_page()); return '<span class="dots">...</span>'.$this->range($this->last_page - 1, $this->last_page);
}
/**
* Create a HTML page link.
*
* @param int $page
* @param string $text
* @param string $attributes
* @return string
*/
private function link($page, $text, $class)
{
return HTML::link(Request::uri().'?page='.$page, $text, array('class' => $class), Request::is_secure());
}
/**
* Build a "dots" HTML span element.
*
* @return string
*/
private function dots()
{
return HTML::span('...', array('class' => 'dots')).' ';
}
/**
* Determine the last page number based on the total pages and per page limit.
*
* @return int
*/
private function last_page()
{
return ceil($this->total / $this->per_page);
} }
/** /**
@ -218,6 +208,19 @@ private function range($start, $end)
return $pages; return $pages;
} }
/**
* Create a HTML page link.
*
* @param int $page
* @param string $text
* @param string $attributes
* @return string
*/
private function link($page, $text, $class)
{
return HTML::link(Request::uri().'?page='.$page, $text, array('class' => $class), Request::is_secure());
}
/** /**
* Set the language that should be used when generating page links. * Set the language that should be used when generating page links.
* *