分页“下一个”链接无法正常工作

时间:2019-04-24 11:22:14

标签: codeigniter pagination

分页效果很好..但是下一个链接无法正常工作,当我单击下一个链接时,上一个链接也不会显示 下一个链接的结果是http://127.0.0.1/work/client/home/index/5 但是我再次单击它的下一个链接。

        $this->load->library('pagination');

    $config = [

      'base_url'                 =>     base_url('client/home/index'),

      'per_page'                 =>     5,

      'total_rows'               =>    $this->client->num_rows(),

   ];

    $config['full_tag_open']     =      '<ul class="pagination">';

    $config['full_tag_close']    =      '</ul>';

    $config['num_tag_open']      =      '<li class="page-item">';

    $config['num_tag_close'] = '</li>';

    $config['cur_tag_open'] = '<li><a>';

    $config['cur_tag_close'] = '</a></li>';

    $config['next_tag_open'] = '<li class="page-item">';

    $config['next_tag_close'] = '</a></li>';

    $config['prev_tag_open'] = '<li class="page-item">';

    $config['prev_tag_close'] = '</li>';

    $config['first_tag_open'] = '<li class="page-item disabled">';

    $config['first_tag_close'] = '</li>';

    $config['last_tag_open'] = '<li class="page-item">';

    $config['last_tag_close'] = '</a></li>';



    $this->pagination->initialize($config);

    $data['transactions'] = $this->service_model->transactions_table_model($com_id, $config['per_page'], $this->uri->segment(3));

1 个答案:

答案 0 :(得分:0)

替换分页库PATH system / library / pagination.php

class CI_Pagination {

/**
 * Base URL
 *
 * The page that we're linking to
 *
 * @var string
 */
protected $base_url = '';

/**
 * Prefix
 *
 * @var string
 */
protected $prefix = '';

/**
 * Suffix
 *
 * @var string
 */
protected $suffix = '';

/**
 * Total number of items
 *
 * @var int
 */
protected $total_rows = 0;

/**
 * Number of links to show
 *
 * Relates to "digit" type links shown before/after
 * the currently viewed page.
 *
 * @var int
 */
protected $num_links = 3;

/**
 * Items per page
 *
 * @var int
 */
public $per_page = 10;

/**
 * Current page
 *
 * @var int
 */
public $cur_page = 0;

/**
 * Use page numbers flag
 *
 * Whether to use actual page numbers instead of an offset
 *
 * @var bool
 */
protected $use_page_numbers = false;

/**
 * First link
 *
 * @var string
 */
protected $first_link = '&lsaquo; First';

/**
 * Next link
 *
 * @var string
 */
protected $next_link = '&gt;';

/**
 * Previous link
 *
 * @var string
 */
protected $prev_link = '&lt;';

/**
 * Last link
 *
 * @var string
 */
protected $last_link = 'Last &rsaquo;';

/**
 * URI Segment
 *
 * @var int
 */
protected $uri_segment = 0;

/**
 * Full tag open
 *
 * @var string
 */
protected $full_tag_open = "<ul class='pagination'>";

/**
 * Full tag close
 *
 * @var string
 */
protected $full_tag_close = "</ul>";

/**
 * First tag open
 *
 * @var string
 */
protected $first_tag_open = '<li>';

/**
 * First tag close
 *
 * @var string
 */
protected $first_tag_close = '</li>';

/**
 * Last tag open
 *
 * @var string
 */
protected $last_tag_open = '<li>';

/**
 * Last tag close
 *
 * @var string
 */
protected $last_tag_close = '<li>';

/**
 * First URL
 *
 * An alternative URL for the first page
 *
 * @var string
 */
protected $first_url = '';

/**
 * Current tag open
 *
 * @var string
 */
protected $cur_tag_open = "<li class='disabled'><li class='active'><a href='#'>";

/**
 * Current tag close
 *
 * @var string
 */
protected $cur_tag_close = "<span class='sr-only'></span></a></li>";

/**
 * Next tag open
 *
 * @var string
 */
protected $next_tag_open = '<li>';

/**
 * Next tag close
 *
 * @var string
 */
protected $next_tag_close = '</li>';

/**
 * Previous tag open
 *
 * @var string
 */
protected $prev_tag_open = '<li>';

/**
 * Previous tag close
 *
 * @var string
 */
protected $prev_tag_close = '</li>';

/**
 * Number tag open
 *
 * @var string
 */
protected $num_tag_open = '<li>';

/**
 * Number tag close
 *
 * @var string
 */
protected $num_tag_close = '</li>';

/**
 * Page query string flag
 *
 * @var bool
 */
protected $page_query_string = true;

/**
 * Query string segment
 *
 * @var string
 */
protected $query_string_segment = 'page';

/**
 * Display pages flag
 *
 * @var bool
 */
protected $display_pages = TRUE;

/**
 * Attributes
 *
 * @var string
 */
protected $_attributes = '';

/**
 * Link types
 *
 * "rel" attribute
 *
 * @see CI_Pagination::_attr_rel()
 * @var array
 */
protected $_link_types = array();

/**
 * Reuse query string flag
 *
 * @var bool
 */
protected $reuse_query_string = true;

/**
 * Use global URL suffix flag
 *
 * @var bool
 */
protected $use_global_url_suffix = true;

/**
 * Data page attribute
 *
 * @var string
 */
protected $data_page_attr = 'data-ci-pagination-page';

/**
 * CI Singleton
 *
 * @var object
 */
protected $CI;

// --------------------------------------------------------------------

/**
 * Constructor
 *
 * @param   array   $params Initialization parameters
 * @return  void
 */
public function __construct($params = array()) {
    $this->CI = & get_instance();
    $this->CI->load->language('pagination');
    foreach (array('first_link', 'next_link', 'prev_link', 'last_link') as $key) {
        if (($val = $this->CI->lang->line('pagination_' . $key)) !== FALSE) {
            $this->$key = $val;
        }
    }

    $this->initialize($params);
    log_message('info', 'Pagination Class Initialized');
}

// --------------------------------------------------------------------

/**
 * Initialize Preferences
 *
 * @param   array   $params Initialization parameters
 * @return  CI_Pagination
 */
public function initialize(array $params = array()) {
    isset($params['attributes']) OR $params['attributes'] = array();
    if (is_array($params['attributes'])) {
        $this->_parse_attributes($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']);
    }

    foreach ($params as $key => $val) {
        if (property_exists($this, $key)) {
            $this->$key = $val;
        }
    }

    if ($this->CI->config->item('enable_query_strings') === TRUE) {
        $this->page_query_string = TRUE;
    }

    if ($this->use_global_url_suffix === TRUE) {
        $this->suffix = $this->CI->config->item('url_suffix');
    }

    return $this;
}

// --------------------------------------------------------------------

/**
 * Generate the pagination links
 *
 * @return  string
 */
public function total_rows() {
    return $this->total_rows;
}

public function create_links() {
    // If our item count or per-page total is zero there is no need to continue.
    // Note: DO NOT change the operator to === here!
    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 '';
    }

    // Check the user defined number of links.
    $this->num_links = (int) $this->num_links;

    if ($this->num_links < 0) {
        show_error('Your number of links must be a non-negative number.');
    }

    // Keep any existing query string items.
    // Note: Has nothing to do with any other query string option.
    if ($this->reuse_query_string === TRUE) {
        $get = $this->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.
    // Note: DO NOT append to the properties as that would break successive calls
    $base_url = trim($this->base_url);
    $first_url = $this->first_url;

    $query_string = '';
    $query_string_sep = (strpos($base_url, '?') === FALSE) ? '?' : '&amp;';

    // Are we using query strings?
    if ($this->page_query_string === TRUE) {
        // If a custom first_url hasn't been specified, we'll create one from
        // the base_url, but without the page item.
        if ($first_url === '') {
            $first_url = $base_url;

            // If we saved any GET items earlier, make sure they're appended.
            if (!empty($get)) {
                $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.
        $base_url .= $query_string_sep . http_build_query(array_merge($get, array($this->query_string_segment => '')));
    } else {
        // Standard segment mode.
        // Generate our saved query string to append later after the page number.
        if (!empty($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($base_url, '?')) !== FALSE) {
            $base_url = substr($base_url, 0, $base_query_pos);
        }

        if ($first_url === '') {
            $first_url = $base_url . $query_string;
        }

        $base_url = rtrim($base_url, '/') . '/';
    }

    // Determine the current page number.
    $base_page = ($this->use_page_numbers) ? 1 : 0;

    // Are we using query strings?
    if ($this->page_query_string === TRUE) {
        $this->cur_page = $this->CI->input->get($this->query_string_segment);
    } elseif (empty($this->cur_page)) {
        // Default to the last segment number if one hasn't been defined.
        if ($this->uri_segment === 0) {
            $this->uri_segment = count($this->CI->uri->segment_array());
        }

        $this->cur_page = $this->CI->uri->segment($this->uri_segment);

        // 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);
        }
    } else {
        $this->cur_page = (string) $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)) {
        $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 ($this->use_page_numbers) {
        if ($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 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.
    $start = (($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;

    // And here we go...
    $output = '';

    // Render the "First" link.
    if ($this->first_link !== FALSE && $this->cur_page > ($this->num_links + 1 + !$this->num_links)) {
        // 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') . '>'
                . $this->first_link . '</a>' . $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;

        $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, ($this->cur_page - 1));

        if ($i === $base_page) {
            // First page
            $output .= $this->prev_tag_open . '<a href="' . $first_url . '"' . $attributes . $this->_attr_rel('prev') . '>'
                    . $this->prev_link . '</a>' . $this->prev_tag_close;
        } else {
            $append = $this->prefix . $i . $this->suffix;
            $output .= $this->prev_tag_open . '<a href="' . $base_url . $append . '"' . $attributes . $this->_attr_rel('prev') . '>'
                    . $this->prev_link . '</a>' . $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;

            $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, $loop);

            if ($i >= $base_page) {
                if ($this->cur_page === $loop) {
                    // 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="' . $first_url . '"' . $attributes . $this->_attr_rel('start') . '>'
                            . $loop . '</a>' . $this->num_tag_close;
                } else {
                    $append = $this->prefix . $i . $this->suffix;
                    $output .= $this->num_tag_open . '<a href="' . $base_url . $append . '"' . $attributes . '>'
                            . $loop . '</a>' . $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;

        $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, $this->cur_page + 1);

        $output .= $this->next_tag_open . '<a href="' . $base_url . $this->prefix . $i . $this->suffix . '"' . $attributes
                . $this->_attr_rel('next') . '>' . $this->next_link . '</a>' . $this->next_tag_close;
    }

    // Render the "Last" link
    if ($this->last_link !== FALSE && ($this->cur_page + $this->num_links + !$this->num_links) < $num_pages) {
        $i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page;

        $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, $num_pages);

        $output .= $this->last_tag_open . '<a href="' . $base_url . $this->prefix . $i . $this->suffix . '"' . $attributes . '>'
                . $this->last_link . '</a>' . $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   $attributes
 * @return  void
 */
protected function _parse_attributes($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  $type
 * @return  string
 */
protected function _attr_rel($type) {
    if (isset($this->_link_types[$type])) {
        unset($this->_link_types[$type]);
        return ' rel="' . $type . '"';
    }

    return '';
}

}

然后在Controller中添加

    $offset = $this->input->get('page') ? $this->input->get('page') : 0;
    $this->load->library('pagination');
    $config['base_url'] = base_url('admin/employees');
    $config['total_rows'] = $this->employee->total_emp($filter_data);
    $config['per_page'] = 50;
    $this->pagination->initialize($config);