display_tbl.lib.php

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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * library for displaying table with results from all sort of select queries
 *
 * @version $Id: display_tbl.lib.php 12008 2008-11-27 21:19:22Z lem9 $
 */

/**
 *
 */
require_once './libraries/Table.class.php';
require_once './libraries/Index.class.php';

/**
 * Defines the display mode to use for the results of a SQL query
 *
 * It uses a synthetic string that contains all the required informations.
 * In this string:
 *   - the first two characters stand for the action to do while
 *     clicking on the "edit" link (e.g. 'ur' for update a row, 'nn' for no
 *     edit link...);
 *   - the next two characters stand for the action to do while
 *     clicking on the "delete" link (e.g. 'kp' for kill a process, 'nn' for
 *     no delete link...);
 *   - the next characters are boolean values (1/0) and respectively stand
 *     for sorting links, navigation bar, "insert a new row" link, the
 *     bookmark feature, the expand/collapse text/blob fields button and
 *     the "display printable view" option.
 *     Of course '0'/'1' means the feature won't/will be enabled.
 *
 * @param   string   the synthetic value for display_mode (see a few
 *                   lines above for explanations)
 * @param   integer  the total number of rows returned by the SQL query
 *                   without any programmatically appended "LIMIT" clause
 *                   (just a copy of $unlim_num_rows if it exists, else
 *                   computed inside this function)
 *
 * @return  array    an array with explicit indexes for all the display
 *                   elements
 *
 * @global  string   the database name
 * @global  string   the table name
 * @global  integer  the total number of rows returned by the SQL query
 *                   without any programmatically appended "LIMIT" clause
 * @global  array    the properties of the fields returned by the query
 * @global  string   the URL to return to in case of error in a SQL
 *                   statement
 *
 * @access  private
 *
 * @see     PMA_displayTable()
 */
function PMA_setDisplayMode(&$the_disp_mode, &$the_total)
{
    global $db, $table;
    global $unlim_num_rows, $fields_meta;
    global $err_url;

    // 1. Initializes the $do_display array
    $do_display              = array();
    $do_display['edit_lnk']  = $the_disp_mode[0] . $the_disp_mode[1];
    $do_display['del_lnk']   = $the_disp_mode[2] . $the_disp_mode[3];
    $do_display['sort_lnk']  = (string) $the_disp_mode[4];
    $do_display['nav_bar']   = (string) $the_disp_mode[5];
    $do_display['ins_row']   = (string) $the_disp_mode[6];
    $do_display['bkm_form']  = (string) $the_disp_mode[7];
    $do_display['text_btn']  = (string) $the_disp_mode[8];
    $do_display['pview_lnk'] = (string) $the_disp_mode[9];

    // 2. Display mode is not "false for all elements" -> updates the
    // display mode
    if ($the_disp_mode != 'nnnn000000') {
        // 2.0 Print view -> set all elements to false!
        if (isset($GLOBALS['printview']) && $GLOBALS['printview'] == '1') {
            $do_display['edit_lnk']  = 'nn'; // no edit link
            $do_display['del_lnk']   = 'nn'; // no delete link
            $do_display['sort_lnk']  = (string) '0';
            $do_display['nav_bar']   = (string) '0';
            $do_display['ins_row']   = (string) '0';
            $do_display['bkm_form']  = (string) '0';
            $do_display['text_btn']  = (string) '0';
            $do_display['pview_lnk'] = (string) '0';
        }
        // 2.1 Statement is a "SELECT COUNT", a
        //     "CHECK/ANALYZE/REPAIR/OPTIMIZE", an "EXPLAIN" one or
        //     contains a "PROC ANALYSE" part
        elseif ($GLOBALS['is_count'] || $GLOBALS['is_analyse'] || $GLOBALS['is_maint'] || $GLOBALS['is_explain']) {
            $do_display['edit_lnk']  = 'nn'; // no edit link
            $do_display['del_lnk']   = 'nn'; // no delete link
            $do_display['sort_lnk']  = (string) '0';
            $do_display['nav_bar']   = (string) '0';
            $do_display['ins_row']   = (string) '0';
            $do_display['bkm_form']  = (string) '1';
            if ($GLOBALS['is_maint']) {
                $do_display['text_btn']  = (string) '1';
            } else {
                $do_display['text_btn']  = (string) '0';
            }
            $do_display['pview_lnk'] = (string) '1';
        }
        // 2.2 Statement is a "SHOW..."
        elseif ($GLOBALS['is_show']) {
            /**
             * 2.2.1
             * @todo defines edit/delete links depending on show statement
             */
            $tmp = preg_match('@^SHOW[[:space:]]+(VARIABLES|(FULL[[:space:]]+)?PROCESSLIST|STATUS|TABLE|GRANTS|CREATE|LOGS|DATABASES|FIELDS)@i', $GLOBALS['sql_query'], $which);
            if (isset($which[1]) && strpos(' ' . strtoupper($which[1]), 'PROCESSLIST') > 0) {
                $do_display['edit_lnk'] = 'nn'; // no edit link
                $do_display['del_lnk']  = 'kp'; // "kill process" type edit link
            } else {
                // Default case -> no links
                $do_display['edit_lnk'] = 'nn'; // no edit link
                $do_display['del_lnk']  = 'nn'; // no delete link
            }
            // 2.2.2 Other settings
            $do_display['sort_lnk']  = (string) '0';
            $do_display['nav_bar']   = (string) '0';
            $do_display['ins_row']   = (string) '0';
            $do_display['bkm_form']  = (string) '1';
            $do_display['text_btn']  = (string) '1';
            $do_display['pview_lnk'] = (string) '1';
        }
        // 2.3 Other statements (ie "SELECT" ones) -> updates
        //     $do_display['edit_lnk'], $do_display['del_lnk'] and
        //     $do_display['text_btn'] (keeps other default values)
        else {
            $prev_table = $fields_meta[0]->table;
            $do_display['text_btn']  = (string) '1';
            for ($i = 0; $i < $GLOBALS['fields_cnt']; $i++) {
                $is_link = ($do_display['edit_lnk'] != 'nn'
                            || $do_display['del_lnk'] != 'nn'
                            || $do_display['sort_lnk'] != '0'
                            || $do_display['ins_row'] != '0');
                // 2.3.2 Displays edit/delete/sort/insert links?
                if ($is_link
                    && ($fields_meta[$i]->table == '' || $fields_meta[$i]->table != $prev_table)) {
                    $do_display['edit_lnk'] = 'nn'; // don't display links
                    $do_display['del_lnk']  = 'nn';
                    /**
                     * @todo May be problematic with same fields names in two joined table.
                     */
                    // $do_display['sort_lnk'] = (string) '0';
                    $do_display['ins_row']  = (string) '0';
                    if ($do_display['text_btn'] == '1') {
                        break;
                    }
                } // end if (2.3.2)
                // 2.3.3 Always display print view link
                $do_display['pview_lnk']    = (string) '1';
                $prev_table = $fields_meta[$i]->table;
            } // end for
        } // end if..elseif...else (2.1 -> 2.3)
    } // end if (2)

    // 3. Gets the total number of rows if it is unknown
    if (isset($unlim_num_rows) && $unlim_num_rows != '') {
        $the_total = $unlim_num_rows;
    } elseif (($do_display['nav_bar'] == '1' || $do_display['sort_lnk'] == '1')
             && (strlen($db) && !empty($table))) {
        $the_total   = PMA_Table::countRecords($db, $table, true);
    }

    // 4. If navigation bar or sorting fields names URLs should be
    //    displayed but there is only one row, change these settings to
    //    false
    if ($do_display['nav_bar'] == '1' || $do_display['sort_lnk'] == '1') {

        // - Do not display sort links if less than 2 rows.
        // - For a VIEW we (probably) did not count the number of rows
        //   so don't test this number here, it would remove the possibility
        //   of sorting VIEW results.
        if (isset($unlim_num_rows) && $unlim_num_rows < 2 && ! PMA_Table::isView($db, $table)) {
            // garvin: force display of navbar for vertical/horizontal display-choice.
            // $do_display['nav_bar']  = (string) '0';
            $do_display['sort_lnk'] = (string) '0';
        }
    } // end if (3)

    // 5. Updates the synthetic var
    $the_disp_mode = join('', $do_display);

    return $do_display;
} // end of the 'PMA_setDisplayMode()' function


/**
 * Displays a navigation bar to browse among the results of a SQL query
 *
 * @uses    $_SESSION['userconf']['disp_direction']
 * @uses    $_SESSION['userconf']['repeat_cells']
 * @uses    $_SESSION['userconf']['max_rows']
 * @uses    $_SESSION['userconf']['pos']
 * @param   integer  the offset for the "next" page
 * @param   integer  the offset for the "previous" page
 * @param   string   the URL-encoded query
 *
 * @global  string   $db             the database name
 * @global  string   $table          the table name
 * @global  string   $goto           the URL to go back in case of errors
 * @global  integer  $num_rows       the total number of rows returned by the
 *                                   SQL query
 * @global  integer  $unlim_num_rows the total number of rows returned by the
 *                                   SQL any programmatically appended "LIMIT" clause
 * @global  boolean  $is_innodb      whether its InnoDB or not
 * @global  array    $showtable      table definitions
 *
 * @access  private
 *
 * @see     PMA_displayTable()
 */
function PMA_displayTableNavigation($pos_next, $pos_prev, $sql_query)
{
    global $db, $table, $goto;
    global $num_rows, $unlim_num_rows;
    global $is_innodb;
    global $showtable;

    // here, using htmlentities() would cause problems if the query
    // contains accented characters
    $html_sql_query = htmlspecialchars($sql_query);

    /**
     * @todo move this to a central place
     * @todo for other future table types
     */
    $is_innodb = (isset($showtable['Type']) && $showtable['Type'] == 'InnoDB');

    ?>

<!-- Navigation bar -->
<table border="0" cellpadding="2" cellspacing="0">
<tr>
    <?php
    // Move to the beginning or to the previous page
    if ($_SESSION['userconf']['pos'] && $_SESSION['userconf']['max_rows'] != 'all') {
        // loic1: patch #474210 from Gosha Sakovich - part 1
        if ($GLOBALS['cfg']['NavigationBarIconic']) {
            $caption1 = '&lt;&lt;';
            $caption2 = ' &lt; ';
            $title1   = ' title="' . $GLOBALS['strPos1'] . '"';
            $title2   = ' title="' . $GLOBALS['strPrevious'] . '"';
        } else {
            $caption1 = $GLOBALS['strPos1'] . ' &lt;&lt;';
            $caption2 = $GLOBALS['strPrevious'] . ' &lt;';
            $title1   = '';
            $title2   = '';
        } // end if... else...
        ?>
<td>
    <form action="sql.php" method="post">
        <?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
        <input type="hidden" name="sql_query" value="<?php echo $html_sql_query; ?>" />
        <input type="hidden" name="pos" value="0" />
        <input type="hidden" name="goto" value="<?php echo $goto; ?>" />
        <input type="submit" name="navig" value="<?php echo $caption1; ?>"<?php echo $title1; ?> />
    </form>
</td>
<td>
    <form action="sql.php" method="post">
        <?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
        <input type="hidden" name="sql_query" value="<?php echo $html_sql_query; ?>" />
        <input type="hidden" name="pos" value="<?php echo $pos_prev; ?>" />
        <input type="hidden" name="goto" value="<?php echo $goto; ?>" />
        <input type="submit" name="navig" value="<?php echo $caption2; ?>"<?php echo $title2; ?> />
    </form>
</td>
        <?php
    } // end move back