'; protected $cur_tag_close = ''; protected $next_tag_open = ' '; protected $next_tag_close = ' '; protected $prev_tag_open = ' '; protected $prev_tag_close = ''; protected $num_tag_open = ' '; protected $num_tag_close = ''; protected $page_query_string = FALSE; protected $query_string_segment = 'per_page'; protected $display_pages = TRUE; protected $_attributes = ''; protected $_link_types = array(); protected $reuse_query_string = FALSE; /** * Constructor * * @param array initialization parameters * @return void */ public function __construct($params = array()) { $this->initialize($params); log_message('debug', 'Pagination Class Initialized'); } // -------------------------------------------------------------------- /** * Initialize Preferences * * @param array initialization parameters * @return void */ public function initialize($params = array()) { $attributes = array(); if (isset($params['attributes']) && is_array($params['attributes'])) { $attributes = $params['attributes']; unset($params['attributes']); } // Deprecated legacy support for the anchor_class option // Should be removed in CI 3.1+ if (isset($params['anchor_class'])) { empty($params['anchor_class']) OR $attributes['class'] = $params['anchor_class']; unset($params['anchor_class']); } $this->_parse_attributes($attributes); if (count($params) > 0) { foreach ($params as $key => $val) { if (isset($this->$key)) { $this->$key = $val; } } } } // -------------------------------------------------------------------- /** * Generate the pagination links * * @return string */ public function create_links() { // If our item count or per-page total is zero there is no need to continue. if ($this->total_rows === 0 OR $this->per_page === 0) { return ''; } // Calculate the total number of pages $num_pages = (int) ceil($this->total_rows / $this->per_page); // Is there only one page? Hm... nothing more to do here then. if ($num_pages === 1) { return ''; } // Set the base page index for starting page number $base_page = ($this->use_page_numbers) ? 1 : 0; // Determine the current page number. $CI =& get_instance(); // See if we are using a prefix or suffix on links if ($this->prefix !== '' OR $this->suffix !== '') { $this->cur_page = (int) str_replace(array($this->prefix, $this->suffix), '', $CI->uri->segment($this->uri_segment)); } if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE) { if ($CI->input->get($this->query_string_segment) != $base_page) { $this->cur_page = (int) $CI->input->get($this->query_string_segment); } } elseif ( ! $this->cur_page && $CI->uri->segment($this->uri_segment) !== $base_page) { $this->cur_page = (int) $CI->uri->segment($this->uri_segment); } // Set current page to 1 if it's not valid or if using page numbers instead of offset if ( ! is_numeric($this->cur_page) OR ($this->use_page_numbers && $this->cur_page === 0)) { $this->cur_page = $base_page; } $this->num_links = (int) $this->num_links; if ($this->num_links < 1) { show_error('Your number of links must be a positive number.'); } // Is the page number beyond the result range? // If so we show the last page if ($this->use_page_numbers) { if ($this->cur_page > $num_pages) { $this->cur_page = $num_pages; } } elseif ($this->cur_page > $this->total_rows) { $this->cur_page = ($num_pages - 1) * $this->per_page; } $uri_page_number = $this->cur_page; if ( ! $this->use_page_numbers) { $this->cur_page = floor(($this->cur_page/$this->per_page) + 1); } // Calculate the start and end numbers. These determine // which number to start and end the digit links with $start = (($this->cur_page - $this->num_links) > 0) ? $this->cur_page - ($this->num_links - 1) : 1; $end = (($this->cur_page + $this->num_links) < $num_pages) ? $this->cur_page + $this->num_links : $num_pages; // Is pagination being used over GET or POST? If get, add a per_page query // string. If post, add a trailing slash to the base URL if needed if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE) { $this->base_url = rtrim($this->base_url).'&'.$this->query_string_segment.'='; } else { $this->base_url = rtrim($this->base_url, '/') .'/'; } // And here we go... $output = ''; $query_string = ''; // Add anything in the query string back to the links // Note: Nothing to do with query_string_segment or any other query string options if ($this->reuse_query_string === TRUE) { $get = $CI->input->get(); // Unset the controll, method, old-school routing options unset($get['c'], $get['m'], $get[$this->query_string_segment]); // Put everything else onto the end $query_string = (strpos($this->base_url, '&') !== FALSE ? '&' : '?') . http_build_query($get, '', '&'); // Add this after the suffix to put it into more links easily $this->suffix .= $query_string; } // Render the "First" link if ($this->first_link !== FALSE && $this->cur_page > ($this->num_links + 1)) { $first_url = ($this->first_url === '') ? $this->base_url : $this->first_url; $output .= $this->first_tag_open.'_attributes.$this->_attr_rel('start').'>' .$this->first_link.''.$this->first_tag_close; } // Render the "previous" link if ($this->prev_link !== FALSE && $this->cur_page !== 1) { $i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page; if ($i === $base_page && $this->first_url !== '') { $output .= $this->prev_tag_open.'_attributes.$this->_attr_rel('prev').'>' .$this->prev_link.''.$this->prev_tag_close; } else { $append = ($i === $base_page) ? $query_string : $this->prefix.$i.$this->suffix; $output .= $this->prev_tag_open.'_attributes.$this->_attr_rel('prev').'>' .$this->prev_link.''.$this->prev_tag_close; } } // Render the pages if ($this->display_pages !== FALSE) { // Write the digit links for ($loop = $start -1; $loop <= $end; $loop++) { $i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page; if ($i >= $base_page) { if ($this->cur_page === $loop) { $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page } else { $n = ($i === $base_page) ? '' : $i; if ($n === '' && ! empty($this->first_url)) { $output .= $this->num_tag_open.'_attributes.$this->_attr_rel('start').'>' .$loop.''.$this->num_tag_close; } else { $append = ($n === '') ? $query_string : $this->prefix.$n.$this->suffix; $output .= $this->num_tag_open.'_attributes.$this->_attr_rel('start').'>' .$loop.''.$this->num_tag_close; } } } } } // Render the "next" link if ($this->next_link !== FALSE && $this->cur_page < $num_pages) { $i = ($this->use_page_numbers) ? $this->cur_page + 1 : $this->cur_page * $this->per_page; $output .= $this->next_tag_open.'_attributes .$this->_attr_rel('next').'>'.$this->next_link.''.$this->next_tag_close; } // Render the "Last" link if ($this->last_link !== FALSE && ($this->cur_page + $this->num_links) < $num_pages) { $i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page; $output .= $this->last_tag_open.'_attributes.'>' .$this->last_link.''.$this->last_tag_close; } // Kill double slashes. Note: Sometimes we can end up with a double slash // in the penultimate link so we'll kill all double slashes. $output = preg_replace('#([^:])//+#', '\\1/', $output); // Add the wrapper HTML if exists return $this->full_tag_open.$output.$this->full_tag_close; } // -------------------------------------------------------------------- /** * Parse attributes * * @param array * @return void */ protected function _parse_attributes($attributes) { isset($attributes['rel']) OR $attributes['rel'] = TRUE; $this->_link_types = ($attributes['rel']) ? array('start' => 'start', 'prev' => 'prev', 'next' => 'next') : array(); unset($attributes['rel']); $this->_attributes = ''; foreach ($attributes as $key => $value) { $this->_attributes .= ' '.$key.'="'.$value.'"'; } } // -------------------------------------------------------------------- /** * Add "rel" attribute * * @link http://www.w3.org/TR/html5/links.html#linkTypes * @param string * @return string */ protected function _attr_rel($type) { if (isset($this->_link_types[$type])) { unset($this->_link_types[$type]); return ' rel="'.$type.'"'; } return ''; } } /* End of file Pagination.php */ /* Location: ./system/libraries/Pagination.php */