diff options
Diffstat (limited to 'system/libraries/Pagination.php')
| -rw-r--r-- | system/libraries/Pagination.php | 199 |
1 files changed, 116 insertions, 83 deletions
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php index d139980d8..438d6c477 100644 --- a/system/libraries/Pagination.php +++ b/system/libraries/Pagination.php @@ -133,7 +133,7 @@ class CI_Pagination { * * @var int */ - protected $uri_segment = 3; + protected $uri_segment = 0; /** * Full tag open @@ -318,11 +318,9 @@ class CI_Pagination { */ public function initialize($params = array()) { - $attributes = array(); - if (isset($params['attributes']) && is_array($params['attributes'])) { - $attributes = $params['attributes']; + $this->_parse_attributes($params['attributes']); unset($params['attributes']); } @@ -334,8 +332,6 @@ class CI_Pagination { unset($params['anchor_class']); } - $this->_parse_attributes($attributes); - if (count($params) > 0) { foreach ($params as $key => $val) @@ -372,45 +368,120 @@ class CI_Pagination { return ''; } - // Set the base page index for starting page number - $base_page = ($this->use_page_numbers) ? 1 : 0; + // Check the user defined number of links. + $this->num_links = (int) $this->num_links; + + if ($this->num_links < 1) + { + show_error('Your number of links must be a positive number.'); + } - // Determine the current page number. $CI =& get_instance(); - // See if we are using a prefix or suffix on links - if ($this->prefix !== '' OR $this->suffix !== '') + // Keep any existing query string items. + // Note: Has nothing to do with any other query string option. + if ($this->reuse_query_string === TRUE) { - $this->cur_page = (int) str_replace(array($this->prefix, $this->suffix), '', $CI->uri->rsegment($this->uri_segment)); + $get = $CI->input->get(); + + // Unset the controll, method, old-school routing options + unset($get['c'], $get['m'], $get[$this->query_string_segment]); + } + else + { + $get = array(); } + // Put together our base and first URLs. + $this->base_url = trim($this->base_url); + + $query_string = ''; + $query_string_sep = (strpos($this->base_url, '?') === FALSE) ? '?' : '&'; + + // Are we using query strings? if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE) { - if ($CI->input->get($this->query_string_segment) != $base_page) + // If a custom first_url hasn't been specified, we'll create one from + // the base_url, but without the page item. + if ($this->first_url === '') { - $this->cur_page = (int) $CI->input->get($this->query_string_segment); + $this->first_url = $this->base_url; + + // If we saved any GET items earlier, make sure they're appended. + if ( ! empty($get)) + { + $this->first_url .= $query_string_sep.http_build_query($get); + } } + + // Add the page segment to the end of the query string, where the + // page number will be appended. + $this->base_url .= $query_string_sep.http_build_query(array_merge($get, array($this->query_string_segment => ''))); } - elseif ( ! $this->cur_page && $CI->uri->segment($this->uri_segment) !== $base_page) + else { - $this->cur_page = (int) $CI->uri->rsegment($this->uri_segment); + // Standard segment mode. + // Generate our saved query string to append later after the page number. + if ( ! empty($get)) + { + $query_string = $query_string_sep.http_build_query($get); + $this->suffix .= $query_string; + } + + // Does the base_url have the query string in it? + // If we're supposed to save it, remove it so we can append it later. + if ($this->reuse_query_string === TRUE && ($base_query_pos = strpos($this->base_url, '?')) !== FALSE) + { + $this->base_url = substr($this->base_url, 0, $base_query_pos); + } + + if ($this->first_url === '') + { + $this->first_url = $this->base_url.$query_string; + } + + $this->base_url = rtrim($this->base_url, '/').'/'; } - // 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)) + // Determine the current page number. + $base_page = ($this->use_page_numbers) ? 1 : 0; + + // Are we using query strings? + if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE) { - $this->cur_page = $base_page; + // Cast as string for use in ctype_digit() later. + $this->cur_page = (string) $CI->input->get($this->query_string_segment); } + else + { + // Default to the last segment number if one hasn't been defined. + if ($this->uri_segment === 0) + { + $this->uri_segment = count($CI->uri->segment_array()); + } - $this->num_links = (int) $this->num_links; + $this->cur_page = (string) $CI->uri->segment($this->uri_segment); - if ($this->num_links < 1) + // Remove any specified prefix/suffix from the segment. + if ($this->prefix !== '' OR $this->suffix !== '') + { + $this->cur_page = str_replace(array($this->prefix, $this->suffix), '', $this->cur_page); + } + } + + // If something isn't quite right, back to the default base page. + if ( ! ctype_digit($this->cur_page) OR ($this->use_page_numbers && (int) $this->cur_page === 0)) { - show_error('Your number of links must be a positive number.'); + $this->cur_page = $base_page; + } + else + { + // Make sure we're using integers for comparisons later. + $this->cur_page = (int) $this->cur_page; } // Is the page number beyond the result range? - // If so we show the last page + // If so, we show the last page. if ($this->use_page_numbers) { if ($this->cur_page > $num_pages) @@ -425,80 +496,47 @@ class CI_Pagination { $uri_page_number = $this->cur_page; + // If we're using offset instead of page numbers, convert it + // to a page number, so we can generate the surrounding number links. if ( ! $this->use_page_numbers) { $this->cur_page = (int) floor(($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 + // 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) - { - $segment = (strpos($this->base_url, '?')) ? '&' : '?'; - $this->base_url = rtrim($this->base_url).$segment.$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]); - if ( ! empty($get)) - { - // 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 .= $query_string; - } - } - - // Render the "First" link + // Render the "First" link. if ($this->first_link !== FALSE && $this->cur_page > ($this->num_links + 1)) { - $first_url = ($this->first_url === '') ? $this->base_url : $this->first_url; - - // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's + // Take the general parameters, and squeeze this pagination-page attr in for JS frameworks. $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, 1); - $output .= $this->first_tag_open.'<a href="'.$first_url.'"'.$attributes.$this->_attr_rel('start').'>' + $output .= $this->first_tag_open.'<a href="'.$this->first_url.'"'.$attributes.$this->_attr_rel('start').'>' .$this->first_link.'</a>'.$this->first_tag_close; } - // Render the "previous" link + // 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; - // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); - if ($i === $base_page && $this->first_url !== '') + if ($i === $base_page) { - $output .= $this->prev_tag_open.'<a href="'.$this->first_url.$query_string.'"'.$attributes.$this->_attr_rel('prev').'>' + // First page + $output .= $this->prev_tag_open.'<a href="'.$this->first_url.'"'.$attributes.$this->_attr_rel('prev').'>' .$this->prev_link.'</a>'.$this->prev_tag_close; } else { - $append = ($i === $base_page) ? $query_string : $this->prefix.$i.$this->suffix; + $append = $this->prefix.$i.$this->suffix; $output .= $this->prev_tag_open.'<a href="'.$this->base_url.$append.'"'.$attributes.$this->_attr_rel('prev').'>' .$this->prev_link.'</a>'.$this->prev_tag_close; } @@ -513,29 +551,26 @@ class CI_Pagination { { $i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page; - // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); if ($i >= $base_page) { if ($this->cur_page === $loop) { - $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page + // Current page + $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; + } + elseif ($i === $base_page) + { + // First page + $output .= $this->num_tag_open.'<a href="'.$this->first_url.'"'.$attributes.$this->_attr_rel('start').'>' + .$loop.'</a>'.$this->num_tag_close; } else { - $n = ($i === $base_page) ? '' : $i; - if ($n === '' && ! empty($this->first_url)) - { - $output .= $this->num_tag_open.'<a href="'.$this->first_url.$query_string.'"'.$attributes.$this->_attr_rel('start').'>' - .$loop.'</a>'.$this->num_tag_close; - } - else - { - $append = ($n === '') ? $query_string : $this->prefix.$n.$this->suffix; - $output .= $this->num_tag_open.'<a href="'.$this->base_url.$append.'"'.$attributes.$this->_attr_rel('start').'>' - .$loop.'</a>'.$this->num_tag_close; - } + $append = $this->prefix.$i.$this->suffix; + $output .= $this->num_tag_open.'<a href="'.$this->base_url.$append.'"'.$attributes.$this->_attr_rel('start').'>' + .$loop.'</a>'.$this->num_tag_close; } } } @@ -546,7 +581,6 @@ class CI_Pagination { { $i = ($this->use_page_numbers) ? $this->cur_page + 1 : $this->cur_page * $this->per_page; - // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); $output .= $this->next_tag_open.'<a href="'.$this->base_url.$this->prefix.$i.$this->suffix.'"'.$attributes @@ -558,7 +592,6 @@ class CI_Pagination { { $i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page; - // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); $output .= $this->last_tag_open.'<a href="'.$this->base_url.$this->prefix.$i.$this->suffix.'"'.$attributes.'>' |