tbl_change.php

一个用PHP编写的

<?php
/* $Id: tbl_change.php,v 2.77.2.3 2006/02/18 14:32:38 lem9 Exp $ */
// vim: expandtab sw=4 ts=4 sts=4:

/**
 * Gets the variables sent or posted to this script and displays the header
 */
require_once('./libraries/common.lib.php');

/**
 * Sets global variables. 
 * Here it's better to use a if, instead of the '?' operator
 * to avoid setting a variable to '' when it's not present in $_REQUEST
 */
if (isset($_REQUEST['pos'])) {
    $pos =  $_REQUEST['pos'];
}
if (isset($_REQUEST['session_max_rows'])) {
    $session_max_rows = $_REQUEST['session_max_rows'];
}
if (isset($_REQUEST['disp_direction'])) {
    $disp_direction = $_REQUEST['disp_direction'];
}
if (isset($_REQUEST['repeat_cells'])) {
    $repeat_cells = $_REQUEST['repeat_cells'];
}
if (isset($_REQUEST['dontlimitchars'])) {
    $dontlimitchars = $_REQUEST['dontlimitchars'];
}
if (isset($_REQUEST['primary_key'])) {
    $primary_key = $_REQUEST['primary_key'];
}
if (isset($_REQUEST['sql_query'])) {
    $sql_query = $_REQUEST['sql_query'];
}


$js_to_run = 'tbl_change.js';
require_once('./libraries/header.inc.php');
require_once('./libraries/relation.lib.php'); // foreign keys
require_once('./libraries/file_listing.php'); // file listing


/**
 * Displays the query submitted and its result
 */
if (!empty($disp_message)) {
    if (isset($goto)) {
        $goto_cpy      = $goto;
        $goto          = 'tbl_properties.php?'
                       . PMA_generate_common_url($db, $table)
                       . '&amp;$show_query=1'
                       . '&amp;sql_query=' . (isset($disp_query) ? urlencode($disp_query) : '');
    } else {
        $show_query = '1';
    }
    if (isset($sql_query)) {
        $sql_query_cpy = $sql_query;
        unset($sql_query);
    }
    if (isset($disp_query)) {
        $sql_query     = $disp_query;
    }
    PMA_showMessage($disp_message);
    if (isset($goto_cpy)) {
        $goto          = $goto_cpy;
        unset($goto_cpy);
    }
    if (isset($sql_query_cpy)) {
        $sql_query     = $sql_query_cpy;
        unset($sql_query_cpy);
    }
}


/**
 * Defines the url to return to in case of error in a sql statement
 * (at this point, $goto might be set but empty)
 */
if (empty($goto)) {
    $goto    = 'db_details.php';
}
// TODO: check if we could replace by "db_details|tbl"
if (!preg_match('@^(db_details|tbl_properties|tbl_select|tbl_import)@', $goto)) {
    $err_url = $goto . "?" . PMA_generate_common_url($db) . "&amp;sql_query=" . urlencode($sql_query);
} else {
    $err_url = $goto . '?'
             . PMA_generate_common_url($db)
             . ((preg_match('@^(tbl_properties|tbl_select)@', $goto)) ? '&amp;table=' . urlencode($table) : '');
}


/**
 * Ensures db and table are valid, else moves to the "parent" script
 */
require_once('./libraries/db_table_exists.lib.php');


/**
 * Sets parameters for links
 */
$url_query = PMA_generate_common_url($db, $table)
           . '&amp;goto=tbl_properties.php';

require_once('./libraries/tbl_properties_table_info.inc.php');

/* Get comments */

$comments_map = array();

if ($GLOBALS['cfg']['ShowPropertyComments']) {
    require_once('./libraries/relation.lib.php');
    require_once('./libraries/transformations.lib.php');

    $cfgRelation = PMA_getRelationsParam();

    if ($cfgRelation['commwork'] || PMA_MYSQL_INT_VERSION >= 40100) {
        $comments_map = PMA_getComments($db, $table);
    }
}

/**
 * Displays top menu links
 */
require_once('./libraries/tbl_properties_links.inc.php');


/**
 * Get the analysis of SHOW CREATE TABLE for this table 
 */
$show_create_table = PMA_DBI_fetch_value(
        'SHOW CREATE TABLE ' . PMA_backquote($db) . '.' . PMA_backquote($table),
        0, 1 );
$analyzed_sql = PMA_SQP_analyze( PMA_SQP_parse( $show_create_table ) );
unset($show_create_table);

/**
 * Get the list of the fields of the current table
 */
PMA_DBI_select_db($db);
$table_def = PMA_DBI_query('SHOW FIELDS FROM ' . PMA_backquote($table) . ';', null, PMA_DBI_QUERY_STORE);
if (isset($primary_key)) {
    if (is_array($primary_key)) {
        $primary_key_array = $primary_key;
    } else {
        $primary_key_array = array(0 => $primary_key);
    }

    $row = array();
    $result = array();
    foreach ($primary_key_array AS $rowcount => $primary_key) {
        $local_query             = 'SELECT * FROM ' . PMA_backquote($table) . ' WHERE ' . $primary_key . ';';
        $result[$rowcount]       = PMA_DBI_query($local_query, null, PMA_DBI_QUERY_STORE);
        $row[$rowcount]          = PMA_DBI_fetch_assoc($result[$rowcount]);
        $primary_keys[$rowcount] = $primary_key;

        // No row returned
        if (!$row[$rowcount]) {
            unset($row[$rowcount]);
            unset($primary_key_array[$rowcount]);
            $goto_cpy          = $goto;
            $goto              = 'tbl_properties.php?'
                               . PMA_generate_common_url($db, $table)
                               . '&amp;$show_query=1'
                               . '&amp;sql_query=' . urlencode($local_query);
            if (isset($sql_query)) {
                $sql_query_cpy = $sql_query;
                unset($sql_query);
            }
            $sql_query         = $local_query;
            PMA_showMessage($strEmptyResultSet);
            $goto              = $goto_cpy;
            unset($goto_cpy);
            if (isset($sql_query_cpy)) {
                $sql_query    = $sql_query_cpy;
                unset($sql_query_cpy);
            }
            echo "\n";
            require_once('./libraries/footer.inc.php');
        } // end if (no record returned)
    }
} else {
    $result = PMA_DBI_query('SELECT * FROM ' . PMA_backquote($table) . ' LIMIT 1;', null, PMA_DBI_QUERY_STORE);
    unset($row);
}

// <[e-mail]>
// retrieve keys into foreign fields, if any
$cfgRelation = PMA_getRelationsParam();
$foreigners  = ($cfgRelation['relwork'] ? PMA_getForeigners($db, $table) : FALSE);


/**
 * Displays the form
 */
// loic1: autocomplete feature of IE kills the "onchange" event handler and it
//        must be replaced by the "onpropertychange" one in this case
$chg_evt_handler = (PMA_USR_BROWSER_AGENT == 'IE' && PMA_USR_BROWSER_VER >= 5)
                 ? 'onpropertychange'
                 : 'onchange';
// Had to put the URI because when hosted on an https server,
// some browsers send wrongly this form to the http server.
?>

<?php if ($cfg['CtrlArrowsMoving']) { ?>
<!-- Set on key handler for moving using by Ctrl+arrows -->
<script src="./js/keyhandler.js" type="text/javascript" language="javascript"></script>
<script type="text/javascript" language="javascript">
//<![CDATA[
var switch_movement = 0;
document.onkeydown = onKeyDownArrowsHandler;
//]]>
</script>
<?php } ?>

<!-- Change table properties form -->
<form method="post" action="tbl_replace.php" name="insertForm" <?php if ($is_upload) { echo ' enctype="multipart/form-data"'; } ?>>
    <?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
    <input type="hidden" name="goto" value="<?php echo urlencode($goto); ?>" />
    <input type="hidden" name="pos" value="<?php echo isset($pos) ? $pos : 0; ?>" />
    <input type="hidden" name="session_max_rows" value="<?php echo isset($session_max_rows) ? $session_max_rows : ''; ?>" />
    <input type="hidden" name="disp_direction" value="<?php echo isset($disp_direction) ? $disp_direction : ''; ?>" />
    <input type="hidden" name="repeat_cells" value="<?php echo isset($repeat_cells) ? $repeat_cells : ''; ?>" />
    <input type="hidden" name="dontlimitchars" value="<?php echo (isset($dontlimitchars) ? $dontlimitchars : 0); ?>" />
    <input type="hidden" name="err_url" value="<?php echo urlencode($err_url); ?>" />
    <input type="hidden" name="sql_query" value="<?php echo isset($sql_query) ? urlencode($sql_query) : ''; ?>" />
<?php
if (isset($primary_key_array)) {
    foreach ($primary_key_array AS $primary_key) {
        ?>
    <input type="hidden" name="primary_key[]" value="<?php echo urlencode($primary_key); ?>" />
<?php
    }
}
echo "\n";

if ($cfg['PropertiesIconic'] == true) {
    // We need to copy the value or else the == 'both' check will always return true
    $propicon = (string)$cfg['PropertiesIconic'];

    if ($propicon == 'both') {
        $iconic_spacer = '<div class="nowrap">';
    } else {
        $iconic_spacer = '';
    }

    $titles['Browse']     = $iconic_spacer . '<img width="16" height="16" src="' . $pmaThemeImage . 'b_browse.png" alt="' . $strBrowseForeignValues . '" title="' . $strBrowseForeignValues . '" border="0" />';

    if ($propicon == 'both') {
        $titles['Browse']        .= '&nbsp;' . $strBrowseForeignValues . '</div>';
    }
} else {
    $titles['Browse']        = $strBrowseForeignValues;
}

// Set if we passed the first timestamp field
$timestamp_seen = 0;
$fields_cnt     = PMA_DBI_num_rows($table_def);

// Set a flag here because the 'if' would not be valid in the loop
// if we set a value in some field
$insert_mode = (!isset($row) ? TRUE : FALSE);
if ($insert_mode) {
    $loop_array  = array();
    for ($i = 0; $i < $cfg['InsertRows']; $i++) $loop_array[] = FALSE;
} else {
    $loop_array  = $row;
}

while ($trow = PMA_DBI_fetch_assoc($table_def)) {
    $trow_table_def[] = $trow;
}

$tabindex = 0;
$tabindex_for_function = +1000;
$tabindex_for_null     = +2000;
$tabindex_for_value    = 0;
$o_rows   = 0;
$biggest_max_file_size = 0;
foreach ($loop_array AS $vrowcount => $vrow) {
    if ($vrow === FALSE) {
        unset($vrow);
    }

    if ($insert_mode) {
        $jsvkey = $vrowcount;
        $browse_foreigners_uri = '&amp;pk=' . $vrowcount;
    } else {
        $jsvkey = urlencode($primary_keys[$vrowcount]);
        $browse_foreigners_uri = '&amp;pk=' . urlencode($primary_keys[$vrowcount]);
    }
    $vkey = '[multi_edit][' . $jsvkey . ']';

    $vresult = (isset($result) && is_array($result) && isset($result[$vrowcount]) ? $result[$vrowcount] : $result);
    if ($insert_mode && $vrowcount > 0) {
        echo '<input type="checkbox" checked="checked" name="insert_ignore_' . $vrowcount . '" id="insert_ignore_check_' . $vrowcount . '" />';
        echo '<label for="insert_ignore_check_' . $vrowcount . '">' . $strIgnore . '</label><br />' . "\n";
    }
?>
    <table border="<?php echo $cfg['Border']; ?>" cellpadding="2" cellspacing="1">
        <tr>
            <th><?php echo $strField; ?></th>
            <th><?php echo $strType; ?></th>
<?php
    if ($cfg['ShowFunctionFields']) {
        echo '          <th>' . $strFunction . '</th>' . "\n";
    }
?>
            <th><?php echo $strNull; ?></th>
            <th><?php echo $strValue; ?></th>
        </tr>
<?php

    // garvin: For looping on multiple rows, we need to reset any variable used inside the loop to indicate sth.
    $timestamp_seen = 0;
    unset($first_timestamp);

    // Sets a multiplier used for input-field counts (as zero cannot be used, advance the counter plus one)
    $m_rows = $o_rows + 1;

    for ($i = 0; $i < $fields_cnt; $i++) {
        // Display the submit button after every 15 lines --swix
        // (wanted to use an <a href="#bottom"> and <a name> instead,
        // but it didn't worked because of the <base href>)

        if ((($o_rows * $fields_cnt + $i) % 15 == 0) && ($i + $o_rows != 0)) {
            ?>