page = static::page($total, $per_page); $this->last_page = ceil($total / $per_page); $this->per_page = $per_page; $this->results = $results; $this->total = $total; } /** * 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. * * @param int $total * @param int $per_page * @return int */ public static function page($total, $per_page) { $page = Input::get('page', 1); if (is_numeric($page) and $page > $last_page = ceil($total / $per_page)) { return $last_page; } return (filter_var($page, FILTER_VALIDATE_INT) === false or $page < 1) ? 1 : $page; } /** * Create the HTML pagination links. * * @param int $adjacent * @return string */ public function links($adjacent = 3) { return ($this->last_page > 1) ? '

'.$this->previous().$this->numbers($adjacent).$this->next() : ''; } /** * Generate the HTML numeric page links. * * If there are not enough pages to make it worth sliding, all of the pages will be listed. * * @param int $adjacent * @return string */ private function numbers($adjacent = 3) { // "7" is added to the adjacent range to account for the seven constant elements // in a slider: the first and last two links, the current page, and the two "..." strings. return ($this->last_page < 7 + ($adjacent * 2)) ? $this->range(1, $this->last_page) : $this->slider($adjacent); } /** * Build sliding list of HTML numeric page links. * * @param int $adjacent * @return string */ private function slider($adjacent) { if ($this->page <= $adjacent * 2) { return $this->range(1, 4 + ($adjacent * 2)).$this->ending(); } elseif ($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->page - $adjacent, $this->page + $adjacent).$this->ending(); } /** * Generate the "previous" HTML link. * * @return string */ public function previous() { $text = Lang::line('pagination.previous')->get($this->language); if ($this->page > 1) { return HTML::link(Request::uri().'?page='.($this->page - 1), $text, array('class' => 'prev_page'), $this->https).' '; } return "$text "; } /** * Generate the "next" HTML link. * * @return string */ public function next() { $text = Lang::line('pagination.next')->get($this->language); if ($this->page < $this->last_page) { return HTML::link(Request::uri().'?page='.($this->page + 1), $text, array('class' => 'next_page'), $this->https); } return "$text"; } /** * Build the first two page links for a sliding page range. * * @return string */ private function beginning() { return $this->range(1, 2).'... '; } /** * Build the last two page links for a sliding page range. * * @return string */ private function ending() { return '... '.$this->range($this->last_page - 1, $this->last_page); } /** * Build a range of page links. * * For the current page, an HTML span element will be generated instead of a link. * * @param int $start * @param int $end * @return string */ private function range($start, $end) { $pages = ''; for ($i = $start; $i <= $end; $i++) { $pages .= ($this->page == $i) ? "$i " : HTML::link(Request::uri().'?page='.$i, $i, array(), $this->https).' '; } return $pages; } /** * Set the language that should be used when generating pagination links. * * @param string $language * @return Paginator */ public function lang($language) { $this->language = $language; return $this; } /** * Force the pagination links to use HTTPS. * * @return Paginator */ public function secure() { $this->https = true; return $this; } }