interface/main/myadmin/tbl_relation.php

   1 <?php
   2 /* $Id$ */
   3 // vim: expandtab sw=4 ts=4 sts=4:
   4
   5 /**
   6  * Gets some core libraries
   7  */
   8 require_once('./libraries/grab_globals.lib.php');
   9 require_once('./libraries/common.lib.php');
  10 require('./tbl_properties_common.php');
  11 $url_query .= '&amp;goto=tbl_properties.php';
  12
  13 // Note: in tbl_properties_table_info we get and display the table comment.
  14 // For InnoDB, this comment contains the REFER information but any update
  15 // has not been done yet (will be done in tbl_relation later).
  16 $avoid_show_comment = TRUE;
  17 require('./tbl_properties_table_info.php');
  18 require_once('./libraries/relation.lib.php');
  19
  20 $options_array = array('CASCADE' => 'CASCADE', 'SET_NULL' => 'SET NULL', 'NO_ACTION' => 'NO ACTION', 'RESTRICT' => 'RESTRICT');
  21
  22          /**
  23          * Generate dropdown choices
  24          *
  25          * @param   string   Message to display
  26          * @param   string   Name of the <select> field
  27          * @param   array    Choices for dropdown
  28          * @return  string   The existing value (for selected)
  29          *
  30          * @access  public
  31          */
  32 function PMA_generate_dropdown($dropdown_question,$radio_name,$choices,$selected_value) {
  33     global $font_smallest;
  34
  35     echo $dropdown_question . '&nbsp;&nbsp;';
  36
  37     echo '<select name="' . $radio_name . '" style="font-size: ' . $font_smallest . '">' . "\n";
  38     echo '<option value="nix" style="font-size: ' . $font_smallest . '" >--</option>' . "\n";
  39
  40     foreach($choices AS $one_value => $one_label) {
  41         echo '<option value="' . $one_value . '"';
  42         if ($selected_value == $one_value) {
  43             echo ' selected="selected" ';
  44         }
  45         echo ' style="font-size: ' . $font_smallest . '">' . $one_label . '</option>' . "\n";
  46     }
  47     echo '</select>' . "\n";
  48     echo "\n";
  49 }
  50
  51
  52 /**
  53  * Gets the relation settings
  54  */
  55 $cfgRelation = PMA_getRelationsParam();
  56
  57
  58 /**
  59  * Updates
  60  */
  61
  62 if ($cfgRelation['relwork']) {
  63     $existrel = PMA_getForeigners($db, $table, '', 'internal');
  64     if ($tbl_type=='INNODB') {
  65         $existrel_innodb = PMA_getForeigners($db, $table, '', 'innodb');
  66     }
  67 }
  68 if ($cfgRelation['displaywork']) {
  69     $disp     = PMA_getDisplayField($db, $table);
  70 }
  71 if ($cfgRelation['relwork']
  72     && isset($submit_rel) && $submit_rel == 'true') {
  73
  74     // u p d a t e s   f o r   I n t e r n a l    r e l a t i o n s
  75
  76     foreach($destination AS $master_field => $foreign_string) {
  77         if ($foreign_string != 'nix') {
  78             list($foreign_db, $foreign_table, $foreign_field) = explode('.', $foreign_string);
  79             if (!isset($existrel[$master_field])) {
  80                 $upd_query  = 'INSERT INTO ' . PMA_backquote($cfgRelation['relation'])
  81                             . '(master_db, master_table, master_field, foreign_db, foreign_table, foreign_field)'
  82                             . ' values('
  83                             . '\'' . PMA_sqlAddslashes($db) . '\', '
  84                             . '\'' . PMA_sqlAddslashes($table) . '\', '
  85                             . '\'' . PMA_sqlAddslashes($master_field) . '\', '
  86                             . '\'' . PMA_sqlAddslashes($foreign_db) . '\', '
  87                             . '\'' . PMA_sqlAddslashes($foreign_table) . '\','
  88                             . '\'' . PMA_sqlAddslashes($foreign_field) . '\')';
  89             } else if ($existrel[$master_field]['foreign_db'] . '.' .$existrel[$master_field]['foreign_table'] . '.' . $existrel[$master_field]['foreign_field'] != $foreign_string) {
  90                 $upd_query  = 'UPDATE ' . PMA_backquote($cfgRelation['relation']) . ' SET'
  91                             . ' foreign_db       = \'' . PMA_sqlAddslashes($foreign_db) . '\', '
  92                             . ' foreign_table    = \'' . PMA_sqlAddslashes($foreign_table) . '\', '
  93                             . ' foreign_field    = \'' . PMA_sqlAddslashes($foreign_field) . '\' '
  94                             . ' WHERE master_db  = \'' . PMA_sqlAddslashes($db) . '\''
  95                             . ' AND master_table = \'' . PMA_sqlAddslashes($table) . '\''
  96                             . ' AND master_field = \'' . PMA_sqlAddslashes($master_field) . '\'';
  97             } // end if... else....
  98         } else if (isset($existrel[$master_field])) {
  99             $upd_query      = 'DELETE FROM ' . PMA_backquote($cfgRelation['relation'])
 100                             . ' WHERE master_db  = \'' . PMA_sqlAddslashes($db) . '\''
 101                             . ' AND master_table = \'' . PMA_sqlAddslashes($table) . '\''
 102                             . ' AND master_field = \'' . PMA_sqlAddslashes($master_field) . '\'';
 103         } // end if... else....
 104         if (isset($upd_query)) {
 105             $upd_rs         = PMA_query_as_cu($upd_query);
 106             unset($upd_query);
 107         }
 108     } // end while
 109
 110
 111     // u p d a t e s   f o r   I n n o D B
 112     // ( for now, same db only, and one index name)
 113     if (isset($destination_innodb)) {
 114         foreach($destination_innodb AS $master_field => $foreign_string) {
 115             if ($foreign_string != 'nix') {
 116                 list($foreign_db, $foreign_table, $foreign_field) = explode('.', $foreign_string);
 117                 if (!isset($existrel_innodb[$master_field])) {
 118                     // no key defined for this field
 119
 120                     // The next few lines are repeated below, so they
 121                     // could be put in an include file
 122                     $upd_query  = 'ALTER TABLE ' . $table
 123                                 . ' ADD FOREIGN KEY ('
 124                                 . PMA_backquote(PMA_sqlAddslashes($master_field)) . ')'
 125                                 . ' REFERENCES '
 126                                 . PMA_backquote(PMA_sqlAddslashes($foreign_table)) . '('
 127                                 . PMA_backquote(PMA_sqlAddslashes($foreign_field)) . ')';
 128
 129                     if (${$master_field . '_on_delete'} != 'nix') {
 130                         $upd_query   .= ' ON DELETE ' . $options_array[${$master_field . '_on_delete'}];
 131                     }
 132                     if (${$master_field . '_on_update'} != 'nix') {
 133                         $upd_query   .= ' ON UPDATE ' . $options_array[${$master_field . '_on_update'}];
 134                     }
 135
 136                     // end repeated code
 137
 138                 } else if (($existrel_innodb[$master_field]['foreign_db'] . '.' .$existrel_innodb[$master_field]['foreign_table'] . '.' . $existrel_innodb[$master_field]['foreign_field'] != $foreign_string)
 139                   || ( ${$master_field . '_on_delete'} != (!empty($existrel_innodb[$master_field]['on_delete']) ? $existrel_innodb[$master_field]['on_delete'] : ''))
 140                   || ( ${$master_field . '_on_update'} != (!empty($existrel_innodb[$master_field]['on_update']) ? $existrel_innodb[$master_field]['on_update'] : ''))
 141                        ) {
 142                     // another foreign key is already defined for this field
 143                     // or
 144                     // an option has been changed for ON DELETE or ON UPDATE
 145
 146                     // remove existing key
 147                     if (PMA_MYSQL_INT_VERSION >= 40013) {
 148                         $upd_query  = 'ALTER TABLE ' . $table
 149                                     . ' DROP FOREIGN KEY '
 150                                     . PMA_backquote($existrel_innodb[$master_field]['constraint']);
 151
 152                         // I tried to send both in one query but it failed
 153                         $upd_rs         = PMA_mysql_query($upd_query);
 154                     }
 155
 156                     // add another
 157                     $upd_query  = 'ALTER TABLE ' . $table
 158                                 . ' ADD FOREIGN KEY ('
 159                                 . PMA_backquote(PMA_sqlAddslashes($master_field)) . ')'
 160                                 . ' REFERENCES '
 161                                 . PMA_backquote(PMA_sqlAddslashes($foreign_table)) . '('
 162                                 . PMA_backquote(PMA_sqlAddslashes($foreign_field)) . ')';
 163
 164                     if (${$master_field . '_on_delete'} != 'nix') {
 165                         $upd_query   .= ' ON DELETE ' . $options_array[${$master_field . '_on_delete'}];
 166                     }
 167                     if (${$master_field . '_on_update'} != 'nix') {
 168                         $upd_query   .= ' ON UPDATE ' . $options_array[${$master_field . '_on_update'}];
 169                     }
 170
 171                 } // end if... else....
 172             } else if (isset($existrel_innodb[$master_field])) {
 173                     if (PMA_MYSQL_INT_VERSION >= 40013) {
 174                         $upd_query  = 'ALTER TABLE ' . $table
 175                                 . ' DROP FOREIGN KEY '
 176                                 . PMA_backquote($existrel_innodb[$master_field]['constraint']);
 177                     }
 178             } // end if... else....
 179
 180             if (isset($upd_query)) {
 181                 $upd_rs         = PMA_mysql_query($upd_query);
 182                 if (PMA_mysql_error() && mysql_errno() == 1005) {
 183                     echo '<p class="warning">' . $strNoIndex . ' (' . $master_field .')</p>'  . PMA_showMySQLDocu('manual_Table_types', 'InnoDB_foreign_key_constraints') . "\n";
 184                 }
 185                 unset($upd_query);
 186             }
 187         } // end while
 188     } // end if isset($destination_innodb)
 189
 190 } // end if
 191
 192
 193 // U p d a t e s   f o r   d i s p l a y   f i e l d
 194
 195 if ($cfgRelation['displaywork']
 196     && isset($submit_show) && $submit_show == 'true') {
 197
 198     if ($disp) {
 199         if ($display_field != '') {
 200             $upd_query = 'UPDATE ' . PMA_backquote($cfgRelation['table_info'])
 201                        . ' SET display_field = \'' . PMA_sqlAddslashes($display_field) . '\''
 202                        . ' WHERE db_name  = \'' . PMA_sqlAddslashes($db) . '\''
 203                        . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\'';
 204         } else {
 205             $upd_query = 'DELETE FROM ' . PMA_backquote($cfgRelation['table_info'])
 206                        . ' WHERE db_name  = \'' . PMA_sqlAddslashes($db) . '\''
 207                        . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\'';
 208         }
 209     } elseif ($display_field != '') {
 210         $upd_query = 'INSERT INTO ' . PMA_backquote($cfgRelation['table_info'])
 211                    . '(db_name, table_name, display_field) '
 212                    . ' VALUES('
 213                    . '\'' . PMA_sqlAddslashes($db) . '\','
 214                    . '\'' . PMA_sqlAddslashes($table) . '\','
 215                    . '\'' . PMA_sqlAddslashes($display_field) . '\')';
 216     }
 217
 218     if (isset($upd_query)) {
 219         $upd_rs    = PMA_query_as_cu($upd_query);
 220     }
 221 } // end if
 222
 223 if ($cfgRelation['commwork']
 224     && isset($submit_comm) && $submit_comm == 'true') {
 225     foreach($comment AS $key => $value) {
 226         // garvin: I exported the snippet here to a function (relation.lib.php) , so it can be used multiple times throughout other pages where you can set comments.
 227         PMA_setComment($db, $table, $key, $value);
 228     }  // end while (transferred data)
 229 } // end if (commwork)
 230
 231 // If we did an update, refresh our data
 232 if ($cfgRelation['relwork']
 233     && isset($submit_rel) && $submit_rel == 'true') {
 234     $existrel = PMA_getForeigners($db, $table, '', 'internal');
 235     if ($tbl_type=='INNODB') {
 236         $existrel_innodb = PMA_getForeigners($db, $table, '', 'innodb');
 237     }
 238 }
 239 if ($cfgRelation['displaywork']) {
 240     $disp     = PMA_getDisplayField($db, $table);
 241 }
 242 if ($cfgRelation['commwork']) {
 243     $comments = PMA_getComments($db, $table);
 244 }
 245
 246
 247 /**
 248  * Dialog
 249  */
 250 if ($cfgRelation['relwork']) {
 251
 252     // To choose relations we first need all tables names in current db
 253     // and if PMA version permits and the main table is innodb,
 254     // we use SHOW TABLE STATUS because we need to find other InnoDB tables
 255
 256     if ($tbl_type=='INNODB') {
 257         $tab_query           = 'SHOW TABLE STATUS FROM ' . PMA_backquote($db);
 258     // [0] of the row is the name
 259     // [1] is the type
 260     } else {
 261         $tab_query           = 'SHOW TABLES FROM ' . PMA_backquote($db);
 262     }
 263     // [0] of the row is the name
 264
 265     $tab_rs              = PMA_mysql_query($tab_query) or PMA_mysqlDie('', $tab_query, '', $err_url_0);
 266     $selectboxall['nix'] = '--';
 267     $selectboxall_innodb['nix'] = '--';
 268
 269     while ($curr_table = @PMA_mysql_fetch_array($tab_rs)) {
 270         if (($curr_table[0] != $table) && ($curr_table[0] != $cfg['Server']['relation'])) {
 271             $fi_query = 'SHOW KEYS FROM ' . PMA_backquote($curr_table[0]);
 272             $fi_rs    = PMA_mysql_query($fi_query) or PMA_mysqlDie('', $fi_query, '', $err_url_0);
 273             if ($fi_rs && mysql_num_rows($fi_rs) > 0) {
 274                 $seen_a_primary=FALSE;
 275                 while ($curr_field = PMA_mysql_fetch_array($fi_rs)) {
 276                     if (isset($curr_field['Key_name']) && $curr_field['Key_name'] == 'PRIMARY') {
 277                         $seen_a_primary=TRUE;
 278                         $field_full = $db . '.' .$curr_field['Table'] . '.' . $curr_field['Column_name'];
 279                         $field_v    = $curr_field['Table'] . '->' . $curr_field['Column_name'];
 280                         $selectboxall[$field_full] =  $field_v;
 281                         // there could be more than one segment of the primary
 282                         // so do not break
 283
 284                         // Please watch here, tbl_type is INNODB but the
 285                         // resulting value of SHOW KEYS is InnoDB
 286
 287                         if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
 288                             $selectboxall_innodb[$field_full] =  $field_v;
 289                         }
 290
 291                     } else if (isset($curr_field['Non_unique']) && $curr_field['Non_unique'] == 0 && $seen_a_primary==FALSE) {
 292                         // if we can't find a primary key we take any unique one
 293                         // (in fact, we show all segments of unique keys
 294                         //  and all unique keys)
 295                         $field_full = $db . '.' . $curr_field['Table'] . '.' . $curr_field['Column_name'];
 296                         $field_v    = $curr_field['Table'] . '->' . $curr_field['Column_name'];
 297                         $selectboxall[$field_full] =  $field_v;
 298                         if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
 299                             $selectboxall_innodb[$field_full] =  $field_v;
 300                         }
 301
 302                     // for InnoDB, any index is allowed
 303                     } else if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
 304                         $field_full = $db . '.' . $curr_field['Table'] . '.' . $curr_field['Column_name'];
 305                         $field_v    = $curr_field['Table'] . '->' . $curr_field['Column_name'];
 306                         $selectboxall_innodb[$field_full] =  $field_v;
 307
 308                     } // end if
 309                 } // end while over keys
 310             } // end if (mysql_num_rows)
 311
 312         // Mike Beck - 24.07.02: i've been asked to add all keys of the
 313         // current table (see bug report #574851)
 314         }
 315         else if ($curr_table[0] == $table) {
 316             $fi_query = 'SHOW KEYS FROM ' . PMA_backquote($curr_table[0]);
 317             $fi_rs    = PMA_mysql_query($fi_query) or PMA_mysqlDie('', $fi_query, '', $err_url_0);
 318             if ($fi_rs && mysql_num_rows($fi_rs) > 0) {
 319                 while ($curr_field = PMA_mysql_fetch_array($fi_rs)) {
 320                     $field_full = $db . '.' . $curr_field['Table'] . '.' . $curr_field['Column_name'];
 321                     $field_v    = $curr_field['Table'] . '->' . $curr_field['Column_name'];
 322                     $selectboxall[$field_full] =  $field_v;
 323                     if ($tbl_type=='INNODB' && isset($curr_table[1]) && $curr_table[1]=='InnoDB') {
 324                         $selectboxall_innodb[$field_full] =  $field_v;
 325                     }
 326                 } // end while
 327             } // end if (mysql_num_rows)
 328         }
 329     } // end while over tables
 330
 331 } // end if
 332
 333
 334 // Now find out the columns of our $table
 335 $col_query = 'SHOW COLUMNS FROM ' . PMA_backquote($table);
 336 $col_rs    = PMA_mysql_query($col_query) or PMA_mysqlDie('', $col_query, '', $err_url_0);
 337
 338 if ($col_rs && mysql_num_rows($col_rs) > 0) {
 339     while ($row = PMA_mysql_fetch_array($col_rs)) {
 340         $save_row[] = $row;
 341     }
 342     $saved_row_cnt  = count($save_row);
 343
 344     ?>
 345 <form method="post" action="tbl_relation.php">
 346     <?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
 347     <input type="hidden" name="submit_rel" value="true" />
 348
 349     <table>
 350     <tr>
 351         <th colspan="4" align="center"><b><?php echo $strLinksTo; ?></b></th>
 352     </tr>
 353     <tr>
 354         <th></th><th><b><?php echo $strInternalRelations;
 355         if ($tbl_type=='INNODB') {
 356             echo '&nbsp;(*)';
 357         }
 358         ?></b></th>
 359         <?php
 360         if ($tbl_type=='INNODB') {
 361             echo '<th colspan="2">InnoDB';
 362             if (PMA_MYSQL_INT_VERSION < 40013) {
 363                 echo '&nbsp;(**)';
 364             }
 365             echo '</th>';
 366         }
 367         ?>
 368     </tr>
 369     <?php
 370     for ($i = 0; $i < $saved_row_cnt; $i++) {
 371         $myfield = $save_row[$i]['Field'];
 372         echo "\n";
 373         ?>
 374     <tr>
 375         <th><?php echo $save_row[$i]['Field']; ?></th>
 376         <td>
 377             <select name="destination[<?php echo htmlspecialchars($save_row[$i]['Field']); ?>]">
 378         <?php
 379         echo "\n";
 380
 381         // PMA internal relations
 382         if (isset($existrel[$myfield])) {
 383             $foreign_field    = $existrel[$myfield]['foreign_db'] . '.'
 384                      . $existrel[$myfield]['foreign_table'] . '.'
 385                      . $existrel[$myfield]['foreign_field'];
 386         } else {
 387             $foreign_field    = FALSE;
 388         }
 389         $seen_key = FALSE;
 390         foreach($selectboxall AS $key => $value) {
 391             echo '                '
 392                  . '<option value="' . htmlspecialchars($key) . '"';
 393             if ($foreign_field && $key == $foreign_field) {
 394                 echo ' selected="selected"';
 395                 $seen_key = TRUE;
 396             }
 397             echo '>' . $value . '</option>'. "\n";
 398         } // end while
 399
 400         // if the link defined in relationtable points to a foreign field
 401         // that is not a key in the foreign table, we show the link
 402         // (will not be shown with an arrow)
 403         if ($foreign_field && !$seen_key) {
 404             echo '                '
 405                  . '<option value="' . htmlspecialchars($foreign_field) . '"';
 406             echo ' selected="selected"';
 407             echo '>' . $foreign_field . '</option>'. "\n";
 408         }
 409         ?>
 410             </select>
 411         </td>
 412         <?php
 413         if ($tbl_type=='INNODB') {
 414         ?>
 415         <td>
 416             <select name="destination_innodb[<?php echo htmlspecialchars($save_row[$i]['Field']); ?>]">
 417         <?php
 418             if (isset($existrel_innodb[$myfield])) {
 419                 $foreign_field    = $existrel_innodb[$myfield]['foreign_db'] . '.'
 420                          . $existrel_innodb[$myfield]['foreign_table'] . '.'
 421                          . $existrel_innodb[$myfield]['foreign_field'];
 422             } else {
 423                 $foreign_field    = FALSE;
 424             }
 425             foreach($selectboxall_innodb AS $key => $value) {
 426                 echo '                '
 427                      . '<option value="' . htmlspecialchars($key) . '"';
 428                 if ($foreign_field && $key == $foreign_field) {
 429                     echo ' selected="selected"';
 430                 }
 431                 echo '>' . $value . '</option>'. "\n";
 432             } // end while
 433
 434         ?>
 435                 </select>
 436         </td>
 437         <td>
 438         <?php
 439               PMA_generate_dropdown('ON DELETE',
 440                   htmlspecialchars($save_row[$i]['Field']) . '_on_delete',
 441                   $options_array,
 442                   (isset($existrel_innodb[$myfield]['on_delete']) ? $existrel_innodb[$myfield]['on_delete']: '') );
 443
 444               echo '&nbsp;&nbsp;&nbsp;';
 445
 446               PMA_generate_dropdown('ON UPDATE',
 447                   htmlspecialchars($save_row[$i]['Field']) . '_on_update',
 448                   $options_array,
 449                   (isset($existrel_innodb[$myfield]['on_update']) ? $existrel_innodb[$myfield]['on_update']: '') );
 450
 451         }
 452         ?>
 453         </td>
 454     </tr>
 455         <?php
 456     } // end for
 457
 458     echo "\n";
 459     ?>
 460     <tr>
 461         <td colspan="2" align="center">
 462             <input type="submit" value="<?php echo '  ' . $strGo . '  '; ?>" />
 463         </td>
 464     </tr>
 465     </table>
 466     <?php
 467         if ($tbl_type=='INNODB') {
 468             echo $strInternalNotNecessary . '<br />';
 469                 if (PMA_MYSQL_INT_VERSION < 40013) {
 470                     echo '** ' . sprintf($strUpgrade, 'MySQL', '4.0.13') . '<br />';
 471                 }
 472         }
 473     ?>
 474 </form>
 475
 476     <?php
 477     if ($cfgRelation['displaywork']) {
 478         // Get "display_field" infos
 479         $disp = PMA_getDisplayField($db, $table);
 480
 481         echo "\n";
 482         ?>
 483 <form method="post" action="tbl_relation.php">
 484     <?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
 485     <input type="hidden" name="submit_show" value="true" />
 486
 487     <p><?php echo $strChangeDisplay . ': '; ?>
 488     <select name="display_field" onchange="this.form.submit();">
 489         <option value="">---</option>
 490         <?php
 491         echo "\n";
 492         mysql_data_seek($col_rs, 0);
 493         while ($row = @PMA_mysql_fetch_array($col_rs)) {
 494             echo '        <option value="' . htmlspecialchars($row['Field']) . '"';
 495             if (isset($disp) && $row['Field'] == $disp) {
 496                 echo ' selected="selected"';
 497             }
 498             echo '>' . htmlspecialchars($row['Field']) . '</option>'. "\n";
 499         } // end while
 500         ?>
 501     </select>
 502     <script type="text/javascript" language="javascript">
 503     <!--
 504     // Fake js to allow the use of the <noscript> tag
 505     //-->
 506     </script>
 507     <noscript>
 508         <input type="submit" value="<?php echo $strGo; ?>" />
 509     </noscript>
 510 </form>
 511 </p>
 512         <?php
 513     } // end if (displayworks)
 514
 515     if ($cfgRelation['commwork']) {
 516
 517         echo "\n";
 518         ?>
 519 <form method="post" action="tbl_relation.php">
 520     <?php echo PMA_generate_common_hidden_inputs($db, $table); ?>
 521     <input type="hidden" name="submit_comm" value="true" />
 522
 523     <table>
 524     <tr>
 525         <th colspan="2" align="center"><b><?php echo $strComments; ?></b></th>
 526     </tr>
 527         <?php
 528         for ($i = 0; $i < $saved_row_cnt; $i++) {
 529             $field = $save_row[$i]['Field'];
 530             echo "\n";
 531             ?>
 532     <tr>
 533         <th><?php echo $field; ?></th>
 534         <td>
 535             <input type="text" name="comment[<?php echo $field; ?>]" value="<?php echo (isset($comments[$field]) ?  htmlspecialchars($comments[$field]) : ''); ?>" />
 536         </td>
 537     </tr>
 538             <?php
 539         } // end for
 540
 541         echo "\n";
 542         ?>
 543     <tr>
 544         <td colspan="2" align="center">
 545             <input type="submit" value="<?php echo $strGo; ?>" />
 546         </td>
 547     </tr>
 548     </table>
 549 </form>
 550         <?php
 551     } //    end if (comments work)
 552 } // end if (we have columns in this table)
 553
 554
 555 /**
 556  * Displays the footer
 557  */
 558 require_once('./footer.inc.php');
 559 ?>