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