tbl_relation.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Display table relations for viewing and editing
   5  *
   6  * includes phpMyAdmin relations and InnoDB relations
   7  *
   8  * @todo fix name handling: currently names with dots (.) are not properly handled for internal relations (but foreign keys relations are correct)
   9  * @todo foreign key constraints require both fields being of equal type and size
  10  * @todo check foreign fields to be from same type and size, all other makes no sense
  11  * @todo add an link to create an index required for constraints, or an option to do automatically
  12  * @todo if above todos are fullfilled we can add all fields meet requirements in the select dropdown
  13  * @version $Id$
  14  * @package phpMyAdmin
  15  */
  16
  17 /**
  18  * Gets some core libraries
  19  */
  20 require_once './libraries/common.inc.php';
  21 require_once './libraries/tbl_common.php';
  22 $url_query .= '&amp;goto=tbl_sql.php';
  23
  24
  25 /**
  26  * Gets tables informations
  27  */
  28 require_once './libraries/tbl_info.inc.php';
  29
  30 // Note: in libraries/tbl_links.inc.php we get and display the table comment.
  31 // For InnoDB, this comment contains the REFER information but any update
  32 // has not been done yet (will be done in tbl_relation.php later).
  33 $avoid_show_comment = TRUE;
  34
  35 /**
  36  * Displays top menu links
  37  */
  38 require_once './libraries/tbl_links.inc.php';
  39
  40 require_once './libraries/relation.lib.php';
  41
  42 $options_array = array(
  43     'CASCADE'   => 'CASCADE',
  44     'SET_NULL'  => 'SET NULL',
  45     'NO_ACTION' => 'NO ACTION',
  46     'RESTRICT'  => 'RESTRICT',
  47 );
  48
  49 /**
  50  * Generate dropdown choices
  51  *
  52  * @param   string   Message to display
  53  * @param   string   Name of the <select> field
  54  * @param   array    Choices for dropdown
  55  * @return  string   The existing value (for selected)
  56  *
  57  * @access  public
  58  */
  59 function PMA_generate_dropdown($dropdown_question, $select_name, $choices, $selected_value)
  60 {
  61     echo htmlspecialchars($dropdown_question) . '&nbsp;&nbsp;';
  62
  63     echo '<select name="' . htmlspecialchars($select_name) . '">' . "\n";
  64     echo '<option value=""></option>' . "\n";
  65
  66     foreach ($choices as $one_value => $one_label) {
  67         echo '<option value="' . htmlspecialchars($one_value) . '"';
  68         if ($selected_value == $one_value) {
  69             echo ' selected="selected" ';
  70         }
  71         echo '>' . htmlspecialchars($one_label) . '</option>' . "\n";
  72     }
  73     echo '</select>' . "\n";
  74 }
  75
  76 /**
  77  * Split a string on backquote pairs
  78  *
  79  * @param   string  original string
  80  * @return  array   containing the elements (and their surrounding backquotes)
  81  *
  82  * @access  public
  83  */
  84 function PMA_backquote_split($text)
  85 {
  86     $elements = array();
  87     $final_pos = strlen($text) - 1;
  88     $pos = 0;
  89     while ($pos <= $final_pos) {
  90         $first_backquote = strpos($text, '`', $pos);
  91         $second_backquote = strpos($text, '`', $first_backquote + 1);
  92         // after the second one, there might be another one which means
  93         // this is an escaped backquote
  94         if ($second_backquote < $final_pos && '`' == $text[$second_backquote + 1]) {
  95             $second_backquote = strpos($text, '`', $second_backquote + 2);
  96         }
  97         if (false === $first_backquote || false === $second_backquote) {
  98             break;
  99         }
 100         $elements[] = substr($text, $first_backquote, $second_backquote - $first_backquote + 1);
 101         $pos = $second_backquote + 1;
 102     }
 103     return($elements);
 104 }
 105
 106 /**
 107  * Gets the relation settings
 108  */
 109 $cfgRelation = PMA_getRelationsParam();
 110
 111
 112 /**
 113  * Updates
 114  */
 115 if ($cfgRelation['relwork']) {
 116     $existrel = PMA_getForeigners($db, $table, '', 'internal');
 117 }
 118 if (PMA_foreignkey_supported($tbl_type)) {
 119     $existrel_foreign = PMA_getForeigners($db, $table, '', 'foreign');
 120 }
 121 if ($cfgRelation['displaywork']) {
 122     $disp     = PMA_getDisplayField($db, $table);
 123 }
 124
 125 // will be used in the logic for internal relations and foreign keys:
 126 $me_fields_name =
 127     isset($_REQUEST['fields_name'])
 128     ? $_REQUEST['fields_name']
 129     : null;
 130
 131 // u p d a t e s   f o r   I n t e r n a l    r e l a t i o n s
 132 if (isset($destination) && $cfgRelation['relwork']) {
 133
 134     foreach ($destination as $master_field_md5 => $foreign_string) {
 135         $upd_query = false;
 136
 137         // Map the fieldname's md5 back to its real name
 138         $master_field = $me_fields_name[$master_field_md5];
 139
 140         if (! empty($foreign_string)) {
 141             $foreign_string = trim($foreign_string, '`');
 142             list($foreign_db, $foreign_table, $foreign_field) =
 143                 explode('.', $foreign_string);
 144             if (! isset($existrel[$master_field])) {
 145                 $upd_query  = 'INSERT INTO ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['relation'])
 146                             . '(master_db, master_table, master_field, foreign_db, foreign_table, foreign_field)'
 147                             . ' values('
 148                             . '\'' . PMA_sqlAddslashes($db) . '\', '
 149                             . '\'' . PMA_sqlAddslashes($table) . '\', '
 150                             . '\'' . PMA_sqlAddslashes($master_field) . '\', '
 151                             . '\'' . PMA_sqlAddslashes($foreign_db) . '\', '
 152                             . '\'' . PMA_sqlAddslashes($foreign_table) . '\','
 153                             . '\'' . PMA_sqlAddslashes($foreign_field) . '\')';
 154             } elseif ($existrel[$master_field]['foreign_db'] . '.' .$existrel[$master_field]['foreign_table'] . '.' . $existrel[$master_field]['foreign_field'] != $foreign_string) {
 155                 $upd_query  = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['relation']) . ' SET'
 156                             . ' foreign_db       = \'' . PMA_sqlAddslashes($foreign_db) . '\', '
 157                             . ' foreign_table    = \'' . PMA_sqlAddslashes($foreign_table) . '\', '
 158                             . ' foreign_field    = \'' . PMA_sqlAddslashes($foreign_field) . '\' '
 159                             . ' WHERE master_db  = \'' . PMA_sqlAddslashes($db) . '\''
 160                             . ' AND master_table = \'' . PMA_sqlAddslashes($table) . '\''
 161                             . ' AND master_field = \'' . PMA_sqlAddslashes($master_field) . '\'';
 162             } // end if... else....
 163         } elseif (isset($existrel[$master_field])) {
 164             $upd_query      = 'DELETE FROM ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['relation'])
 165                             . ' WHERE master_db  = \'' . PMA_sqlAddslashes($db) . '\''
 166                             . ' AND master_table = \'' . PMA_sqlAddslashes($table) . '\''
 167                             . ' AND master_field = \'' . PMA_sqlAddslashes($master_field) . '\'';
 168         } // end if... else....
 169         if ($upd_query) {
 170             PMA_query_as_controluser($upd_query);
 171         }
 172     } // end while
 173 } // end if (updates for internal relations)
 174
 175 // u p d a t e s    f o r    f o r e i g n    k e y s
 176 // (for now, one index name only; we keep the definitions if the
 177 // foreign db is not the same)
 178 // I use $sql_query to be able to display directly the query via
 179 // PMA_showMessage()
 180
 181 if (isset($_REQUEST['destination_foreign'])) {
 182     $display_query = '';
 183     $seen_error = false;
 184     foreach ($_REQUEST['destination_foreign'] as $master_field_md5 => $foreign_string) {
 185
 186         // Map the fieldname's md5 back to it's real name
 187         $master_field = $me_fields_name[$master_field_md5];
 188
 189         if (! empty($foreign_string)) {
 190             list($foreign_db, $foreign_table, $foreign_field) = PMA_backquote_split($foreign_string);
 191             if (!isset($existrel_foreign[$master_field])) {
 192                 // no key defined for this field
 193
 194                 // The next few lines are repeated below, so they
 195                 // could be put in an include file
 196                 // Note: I tried to enclose the db and table name with
 197                 // backquotes but MySQL 4.0.16 did not like the syntax
 198                 // (for example: `base2`.`table1`)
 199
 200                 $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
 201                             . ' ADD FOREIGN KEY ('
 202                             . PMA_backquote($master_field) . ')'
 203                             . ' REFERENCES '
 204                             . $foreign_db . '.'
 205                             . $foreign_table . '('
 206                             . $foreign_field . ')';
 207
 208                 if (! empty($_REQUEST['on_delete'][$master_field_md5])) {
 209                     $sql_query .= ' ON DELETE ' . $options_array[$_REQUEST['on_delete'][$master_field_md5]];
 210                 }
 211                 if (! empty($_REQUEST['on_update'][$master_field_md5])) {
 212                     $sql_query .= ' ON UPDATE ' . $options_array[$_REQUEST['on_update'][$master_field_md5]];
 213                 }
 214                 $sql_query .= ';';
 215                 $display_query .= $sql_query . "\n";
 216                 // end repeated code
 217
 218             } elseif (PMA_backquote($existrel_foreign[$master_field]['foreign_db']) != $foreign_db
 219                 || PMA_backquote($existrel_foreign[$master_field]['foreign_table']) != $foreign_table
 220                 || PMA_backquote($existrel_foreign[$master_field]['foreign_field']) != $foreign_field
 221                 || ($_REQUEST['on_delete'][$master_field_md5] != (!empty($existrel_foreign[$master_field]['on_delete']) ? $existrel_foreign[$master_field]['on_delete'] : ''))
 222                 || ($_REQUEST['on_update'][$master_field_md5] != (!empty($existrel_foreign[$master_field]['on_update']) ? $existrel_foreign[$master_field]['on_update'] : ''))
 223                    ) {
 224                 // another foreign key is already defined for this field
 225                 // or
 226                 // an option has been changed for ON DELETE or ON UPDATE
 227
 228                 // remove existing key
 229                 $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
 230                             . ' DROP FOREIGN KEY '
 231                             . PMA_backquote($existrel_foreign[$master_field]['constraint']) . ';';
 232
 233                 // I tried to send both in one query but it failed
 234                 PMA_DBI_query($sql_query);
 235                 $display_query .= $sql_query . "\n";
 236
 237                 // add another
 238                 $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
 239                             . ' ADD FOREIGN KEY ('
 240                             . PMA_backquote($master_field) . ')'
 241                             . ' REFERENCES '
 242                             . $foreign_db . '.'
 243                             . $foreign_table . '('
 244                             . $foreign_field . ')';
 245
 246                 if (! empty($_REQUEST['on_delete'][$master_field_md5])) {
 247                     $sql_query   .= ' ON DELETE '
 248                         . $options_array[$_REQUEST['on_delete'][$master_field_md5]];
 249                 }
 250                 if (! empty($_REQUEST['on_update'][$master_field_md5])) {
 251                     $sql_query   .= ' ON UPDATE '
 252                         . $options_array[$_REQUEST['on_update'][$master_field_md5]];
 253                 }
 254                 $sql_query .= ';';
 255                 $display_query .= $sql_query . "\n";
 256
 257             } // end if... else....
 258         } elseif (isset($existrel_foreign[$master_field])) {
 259             $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
 260                     . ' DROP FOREIGN KEY '
 261                     . PMA_backquote($existrel_foreign[$master_field]['constraint']);
 262             $sql_query .= ';';
 263             $display_query .= $sql_query . "\n";
 264         } // end if... else....
 265
 266         if (! empty($sql_query)) {
 267             PMA_DBI_try_query($sql_query);
 268             $tmp_error = PMA_DBI_getError();
 269             if (! empty($tmp_error)) {
 270                 $seen_error = true;
 271             }
 272             if (substr($tmp_error, 1, 4) == '1216'
 273             ||  substr($tmp_error, 1, 4) == '1452') {
 274                 PMA_mysqlDie($tmp_error, $sql_query, FALSE, '', FALSE);
 275                 echo PMA_showMySQLDocu('manual_Table_types', 'InnoDB_foreign_key_constraints') . "\n";
 276             }
 277             if (substr($tmp_error, 1, 4) == '1005') {
 278                 $message = PMA_Message::warning('strForeignKeyError');
 279                 $message->addParam($master_field);
 280                 $message->display();
 281                 echo PMA_showMySQLDocu('manual_Table_types', 'InnoDB_foreign_key_constraints') . "\n";
 282             }
 283             unset($tmp_error);
 284             $sql_query = '';
 285         }
 286     } // end foreach
 287     if (!empty($display_query)) {
 288         if ($seen_error) {
 289             PMA_showMessage($strError, null, 'error');
 290         } else {
 291             PMA_showMessage($strSuccess, null, 'success');
 292         }
 293     }
 294 } // end if isset($destination_foreign)
 295
 296
 297 // U p d a t e s   f o r   d i s p l a y   f i e l d
 298
 299 if ($cfgRelation['displaywork'] && isset($display_field)) {
 300     $upd_query = false;
 301     if ($disp) {
 302         if ($display_field != '') {
 303             $upd_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['table_info'])
 304                        . ' SET display_field = \'' . PMA_sqlAddslashes($display_field) . '\''
 305                        . ' WHERE db_name  = \'' . PMA_sqlAddslashes($db) . '\''
 306                        . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\'';
 307         } else {
 308             $upd_query = 'DELETE FROM ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['table_info'])
 309                        . ' WHERE db_name  = \'' . PMA_sqlAddslashes($db) . '\''
 310                        . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\'';
 311         }
 312     } elseif ($display_field != '') {
 313         $upd_query = 'INSERT INTO ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['table_info'])
 314                    . '(db_name, table_name, display_field) '
 315                    . ' VALUES('
 316                    . '\'' . PMA_sqlAddslashes($db) . '\','
 317                    . '\'' . PMA_sqlAddslashes($table) . '\','
 318                    . '\'' . PMA_sqlAddslashes($display_field) . '\')';
 319     }
 320
 321     if ($upd_query) {
 322         PMA_query_as_controluser($upd_query);
 323     }
 324 } // end if
 325
 326 // If we did an update, refresh our data
 327 if (isset($destination) && $cfgRelation['relwork']) {
 328     $existrel = PMA_getForeigners($db, $table, '', 'internal');
 329 }
 330 if (isset($destination_foreign) && PMA_foreignkey_supported($tbl_type)) {
 331     $existrel_foreign = PMA_getForeigners($db, $table, '', 'foreign');
 332 }
 333
 334 if ($cfgRelation['displaywork']) {
 335     $disp     = PMA_getDisplayField($db, $table);
 336 }
 337
 338
 339 /**
 340  * Dialog
 341  */
 342
 343 // common form
 344 echo '<form method="post" action="tbl_relation.php">' . "\n";
 345 echo PMA_generate_common_hidden_inputs($db, $table);
 346
 347
 348 // relations
 349
 350 if ($cfgRelation['relwork'] || PMA_foreignkey_supported($tbl_type)) {
 351     // To choose relations we first need all tables names in current db
 352     // and if the main table supports foreign keys
 353     // we use SHOW TABLE STATUS because we need to find other tables of the
 354     // same engine.
 355
 356     if (PMA_foreignkey_supported($tbl_type)) {
 357         $tab_query           = 'SHOW TABLE STATUS FROM ' . PMA_backquote($db);
 358         // [0] of the row is the name
 359         // [1] is the type
 360     } else {
 361         $tab_query           = 'SHOW TABLES FROM ' . PMA_backquote($db);
 362         // [0] of the row is the name
 363     }
 364
 365     $tab_rs              = PMA_DBI_query($tab_query, null, PMA_DBI_QUERY_STORE);
 366     $selectboxall[] = '';
 367     $selectboxall_foreign[] = '';
 368
 369     while ($curr_table = PMA_DBI_fetch_row($tab_rs)) {
 370         $current_table = new PMA_Table($curr_table[0], $db);
 371
 372         // explicitely ask for non-quoted list of indexed columns
 373         $selectboxall = array_merge($selectboxall, $current_table->getUniqueColumns($backquoted = false));
 374
 375         // if foreign keys are supported, collect all keys from other
 376         // tables of the same engine
 377         if (PMA_foreignkey_supported($tbl_type)
 378          && isset($curr_table[1])
 379          && strtoupper($curr_table[1]) == $tbl_type) {
 380              // explicitely ask for non-quoted list of indexed columns
 381              // need to obtain backquoted values to support dots inside values
 382              $selectboxall_foreign = array_merge($selectboxall_foreign, $current_table->getIndexedColumns($backquoted = true));
 383         }
 384     } // end while over tables
 385 } // end if
 386
 387 // Now find out the columns of our $table
 388 // need to use PMA_DBI_QUERY_STORE with PMA_DBI_num_rows() in mysqli
 389 $col_rs    = PMA_DBI_try_query('SHOW COLUMNS FROM ' . PMA_backquote($table) . ';', null, PMA_DBI_QUERY_STORE);
 390
 391 if ($col_rs && PMA_DBI_num_rows($col_rs) > 0) {
 392     while ($row = PMA_DBI_fetch_assoc($col_rs)) {
 393         $save_row[] = $row;
 394     }
 395     $saved_row_cnt  = count($save_row);
 396     ?>
 397     <fieldset>
 398     <legend><?php echo $strLinksTo; ?></legend>
 399
 400     <table>
 401     <tr><th></th>
 402     <?php
 403     if ($cfgRelation['relwork']) {
 404         echo '<th>' . $strInternalRelations;
 405         if (PMA_foreignkey_supported($tbl_type)) {
 406             echo PMA_showHint($strInternalAndForeign);
 407         }
 408         echo '</th>';
 409     }
 410     if (PMA_foreignkey_supported($tbl_type)) {
 411         // this does not have to be translated, it's part of the MySQL syntax
 412         echo '<th colspan="2">FOREIGN KEY (' . $tbl_type . ')';
 413         echo '</th>';
 414     }
 415     ?>
 416     </tr>
 417     <?php
 418     $odd_row = true;
 419     for ($i = 0; $i < $saved_row_cnt; $i++) {
 420         $myfield = $save_row[$i]['Field'];
 421         // Use an md5 as array index to avoid having special characters in the name atttibure (see bug #1746964 )
 422         $myfield_md5 = md5($myfield);
 423         $myfield_html = htmlspecialchars($myfield);
 424         ?>
 425     <tr class="<?php echo $odd_row ? 'odd' : 'even'; $odd_row = ! $odd_row; ?>">
 426         <td align="center">
 427             <strong><?php echo $myfield_html; ?></strong>
 428             <input type="hidden" name="fields_name[<?php echo $myfield_md5; ?>]" value="<?php echo $myfield_html; ?>"/>
 429         </td>
 430         <?php
 431         if ($cfgRelation['relwork']) {
 432             ?>
 433         <td><select name="destination[<?php echo $myfield_md5; ?>]">
 434             <?php
 435             // PMA internal relations
 436             if (isset($existrel[$myfield])) {
 437                 $foreign_field    = $existrel[$myfield]['foreign_db'] . '.'
 438                          . $existrel[$myfield]['foreign_table'] . '.'
 439                          . $existrel[$myfield]['foreign_field'];
 440             } else {
 441                 $foreign_field    = FALSE;
 442             }
 443             $seen_key = FALSE;
 444             foreach ($selectboxall as $value) {
 445                 echo '                '
 446                      . '<option value="' . htmlspecialchars($value) . '"';
 447                 if ($foreign_field && $value == $foreign_field) {
 448                     echo ' selected="selected"';
 449                     $seen_key = TRUE;
 450                 }
 451                 echo '>' . htmlspecialchars($value) . '</option>'. "\n";
 452             } // end while
 453
 454             // if the link defined in relationtable points to a foreign field
 455             // that is not a key in the foreign table, we show the link
 456             // (will not be shown with an arrow)
 457             if ($foreign_field && !$seen_key) {
 458                 echo '                '
 459                     .'<option value="' . htmlspecialchars($foreign_field) . '"'
 460                     .' selected="selected"'
 461                     .'>' . $foreign_field . '</option>'. "\n";
 462             }
 463             ?>
 464             </select>
 465         </td>
 466             <?php
 467         } // end if (internal relations)
 468
 469         if (PMA_foreignkey_supported($tbl_type)) {
 470             echo '<td>';
 471             if (!empty($save_row[$i]['Key'])) {
 472                 ?>
 473             <span class="formelement">
 474             <select name="destination_foreign[<?php echo $myfield_md5; ?>]">
 475                 <?php
 476                 if (isset($existrel_foreign[$myfield])) {
 477                     // need to backquote to support a dot character inside
 478                     // an element
 479                     $foreign_field    = PMA_backquote($existrel_foreign[$myfield]['foreign_db']) . '.'
 480                              . PMA_backquote($existrel_foreign[$myfield]['foreign_table']) . '.'
 481                              . PMA_backquote($existrel_foreign[$myfield]['foreign_field']);
 482                 } else {
 483                     $foreign_field    = FALSE;
 484                 }
 485
 486                 $found_foreign_field = FALSE;
 487                 foreach ($selectboxall_foreign as $value) {
 488                     echo '                '
 489                          . '<option value="' . htmlspecialchars($value) . '"';
 490                     if ($foreign_field && $value == $foreign_field) {
 491                         echo ' selected="selected"';
 492                         $found_foreign_field = TRUE;
 493                     }
 494                     echo '>' . htmlspecialchars($value) . '</option>'. "\n";
 495                 } // end while
 496
 497                 // we did not find the foreign field in the tables of current db,
 498                 // must be defined in another db so show it to avoid erasing it
 499                 if (!$found_foreign_field && $foreign_field) {
 500                     echo '                '
 501                          . '<option value="' . htmlspecialchars($foreign_field) . '"';
 502                     echo ' selected="selected"';
 503                     echo '>' . $foreign_field . '</option>' . "\n";
 504                 }
 505
 506                 ?>
 507             </select>
 508             </span>
 509             <span class="formelement">
 510                 <?php
 511                 PMA_generate_dropdown('ON DELETE',
 512                     'on_delete[' . $myfield_md5 . ']',
 513                     $options_array,
 514                     isset($existrel_foreign[$myfield]['on_delete']) ? $existrel_foreign[$myfield]['on_delete']: '');
 515
 516                 echo '</span>' . "\n"
 517                     .'<span class="formelement">' . "\n";
 518
 519                 PMA_generate_dropdown('ON UPDATE',
 520                     'on_update[' . $myfield_md5 . ']',
 521                     $options_array,
 522                     isset($existrel_foreign[$myfield]['on_update']) ? $existrel_foreign[$myfield]['on_update']: '');
 523                 echo '</span>' . "\n";
 524             } else {
 525                 echo $strNoIndex;
 526             } // end if (a key exists)
 527             echo '        </td>';
 528         } // end if (InnoDB)
 529         ?>
 530     </tr>
 531         <?php
 532     } // end for
 533
 534     unset( $myfield, $myfield_md5, $myfield_html);
 535
 536     echo '    </table>' . "\n";
 537     echo '</fieldset>' . "\n";
 538
 539     if ($cfgRelation['displaywork']) {
 540         // Get "display_field" infos
 541         $disp = PMA_getDisplayField($db, $table);
 542         ?>
 543     <fieldset>
 544         <label><?php echo $strChangeDisplay . ': '; ?></label>
 545         <select name="display_field" style="vertical-align: middle">
 546             <option value="">---</option>
 547         <?php
 548         foreach ($save_row AS $row) {
 549             echo '            <option value="' . htmlspecialchars($row['Field']) . '"';
 550             if (isset($disp) && $row['Field'] == $disp) {
 551                 echo ' selected="selected"';
 552             }
 553             echo '>' . htmlspecialchars($row['Field']) . '</option>'. "\n";
 554         } // end while
 555         ?>
 556         </select>
 557     </fieldset>
 558         <?php
 559     } // end if (displayworks)
 560     ?>
 561     <fieldset class="tblFooters">
 562         <input type="submit" value="<?php echo $strSave; ?>" />
 563     </fieldset>
 564 </form>
 565     <?php
 566 } // end if (we have columns in this table)
 567
 568 /**
 569  * Displays the footer
 570  */
 571 require_once './libraries/footer.inc.php';
 572 ?>