tbl_replace.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * manipulation of table data like inserting, replacing and updating
   5  *
   6  * usally called as form action from tbl_change.php to insert or update table rows
   7  *
   8  * @version $Id$
   9  *
  10  * @todo 'edit_next' tends to not work as expected if used ... at least there is no order by
  11  *       it needs the original query and the row number and than replace the LIMIT clause
  12  * @uses    PMA_checkParameters()
  13  * @uses    PMA_DBI_select_db()
  14  * @uses    PMA_DBI_query()
  15  * @uses    PMA_DBI_fetch_row()
  16  * @uses    PMA_DBI_get_fields_meta()
  17  * @uses    PMA_DBI_free_result()
  18  * @uses    PMA_DBI_try_query()
  19  * @uses    PMA_DBI_getError()
  20  * @uses    PMA_DBI_affected_rows()
  21  * @uses    PMA_DBI_insert_id()
  22  * @uses    PMA_backquote()
  23  * @uses    PMA_getUniqueCondition()
  24  * @uses    PMA_sqlAddslashes()
  25  * @uses    PMA_securePath()
  26  * @uses    PMA_sendHeaderLocation()
  27  * @uses    str_replace()
  28  * @uses    count()
  29  * @uses    file_exists()
  30  * @uses    strlen()
  31  * @uses    str_replace()
  32  * @uses    preg_replace()
  33  * @uses    is_array()
  34  * @uses    $GLOBALS['db']
  35  * @uses    $GLOBALS['table']
  36  * @uses    $GLOBALS['goto']
  37  * @uses    $GLOBALS['sql_query']
  38  * @uses    PMA_File::getRecentBLOBReference()
  39  * @package phpMyAdmin
  40  */
  41
  42 /**
  43  * do not import request variable into global scope
  44  *
  45  * cannot be used as long as it could happen that the $goto file that is included
  46  * at the end of this script is not updated to work without imported request variables
  47  *
  48  * @todo uncomment this if all possible included files to rely on import request variables
  49 if (! defined('PMA_NO_VARIABLES_IMPORT')) {
  50     define('PMA_NO_VARIABLES_IMPORT', true);
  51 }
  52  */
  53 /**
  54  * Gets some core libraries
  55  */
  56 require_once './libraries/common.inc.php';
  57 $blob_streaming_active = $_SESSION['PMA_Config']->get('BLOBSTREAMING_PLUGINS_EXIST');
  58
  59 // Check parameters
  60 PMA_checkParameters(array('db', 'table', 'goto'));
  61
  62 PMA_DBI_select_db($GLOBALS['db']);
  63
  64 /**
  65  * Initializes some variables
  66  */
  67 $goto_include = false;
  68
  69 if (isset($_REQUEST['insert_rows']) && is_numeric($_REQUEST['insert_rows']) && $_REQUEST['insert_rows'] != $cfg['InsertRows']) {
  70     $cfg['InsertRows'] = $_REQUEST['insert_rows'];
  71     $GLOBALS['js_include'][] = 'tbl_change.js';
  72     require_once './libraries/header.inc.php';
  73     require './tbl_change.php';
  74     exit;
  75 }
  76
  77 if (isset($_REQUEST['after_insert'])
  78  && in_array($_REQUEST['after_insert'], array('new_insert', 'same_insert', 'edit_next'))) {
  79     $url_params['after_insert'] = $_REQUEST['after_insert'];
  80     //$GLOBALS['goto'] = 'tbl_change.php';
  81     $goto_include = 'tbl_change.php';
  82
  83     if (isset($_REQUEST['where_clause'])) {
  84         if ($_REQUEST['after_insert'] == 'same_insert') {
  85             foreach ($_REQUEST['where_clause'] as $one_where_clause) {
  86                 $url_params['where_clause'][] = $one_where_clause;
  87             }
  88         } elseif ($_REQUEST['after_insert'] == 'edit_next') {
  89             foreach ($_REQUEST['where_clause'] as $one_where_clause) {
  90                 $local_query    = 'SELECT * FROM ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
  91                                 . ' WHERE ' . str_replace('` =', '` >', $one_where_clause)
  92                                 . ' LIMIT 1;';
  93                 $res            = PMA_DBI_query($local_query);
  94                 $row            = PMA_DBI_fetch_row($res);
  95                 $meta           = PMA_DBI_get_fields_meta($res);
  96                 // must find a unique condition based on unique key,
  97                 // not a combination of all fields
  98                 list($unique_condition, $clause_is_unique) = PMA_getUniqueCondition($res, count($meta), $meta, $row, true);
  99                 if (! empty($unique_condition)) {
 100                     $_SESSION['edit_next'] = $unique_condition;
 101                 }
 102                 unset($unique_condition, $clause_is_unique);
 103             }
 104         }
 105     }
 106 } elseif (! empty($GLOBALS['goto'])) {
 107     if (! preg_match('@^[a-z_]+\.php$@', $GLOBALS['goto'])) {
 108         // this should NOT happen
 109         //$GLOBALS['goto'] = false;
 110         $goto_include = false;
 111     } else {
 112         $goto_include = $GLOBALS['goto'];
 113     }
 114     if ($GLOBALS['goto'] == 'db_sql.php' && strlen($GLOBALS['table'])) {
 115         $GLOBALS['table'] = '';
 116     }
 117 }
 118
 119 if (! $goto_include) {
 120     if (! strlen($GLOBALS['table'])) {
 121         $goto_include = 'db_sql.php';
 122     } else {
 123         $goto_include = 'tbl_sql.php';
 124     }
 125 }
 126
 127 // Defines the url to return in case of failure of the query
 128 if (isset($_REQUEST['err_url'])) {
 129     $err_url = $_REQUEST['err_url'];
 130 } else {
 131     $err_url = 'tbl_change.php' . PMA_generate_common_url($url_params);
 132 }
 133
 134 /**
 135  * Prepares the update/insert of a row
 136  */
 137 if (isset($_REQUEST['where_clause'])) {
 138     // we were editing something => use the WHERE clause
 139     $loop_array = (is_array($_REQUEST['where_clause']) ? $_REQUEST['where_clause'] : array($_REQUEST['where_clause']));
 140     $using_key  = true;
 141     $is_insert  = ($_REQUEST['submit_type'] == $GLOBALS['strInsertAsNewRow']);
 142 } else {
 143     // new row => use indexes
 144     $loop_array = array();
 145     foreach ($_REQUEST['fields']['multi_edit'] as $key => $dummy) {
 146         $loop_array[] = $key;
 147     }
 148     $using_key  = false;
 149     $is_insert  = true;
 150 }
 151
 152 $query = array();
 153 $value_sets = array();
 154 $func_no_param = array(
 155     'NOW',
 156     'CURDATE',
 157     'CURTIME',
 158     'UTC_DATE',
 159     'UTC_TIME',
 160     'UTC_TIMESTAMP',
 161     'UNIX_TIMESTAMP',
 162     'RAND',
 163     'USER',
 164     'LAST_INSERT_ID',
 165     'UUID',
 166     'CURRENT_USER',
 167 );
 168
 169 foreach ($loop_array as $rowcount => $where_clause) {
 170     // skip fields to be ignored
 171     if (! $using_key && isset($_REQUEST['insert_ignore_' . $where_clause])) {
 172         continue;
 173     }
 174
 175     // Defines the SET part of the sql query
 176     $query_values = array();
 177
 178     // Map multi-edit keys to single-level arrays, dependent on how we got the fields
 179     $me_fields =
 180         isset($_REQUEST['fields']['multi_edit'][$rowcount])
 181         ? $_REQUEST['fields']['multi_edit'][$rowcount]
 182         : array();
 183     $me_fields_name =
 184         isset($_REQUEST['fields_name']['multi_edit'][$rowcount])
 185         ? $_REQUEST['fields_name']['multi_edit'][$rowcount]
 186         : null;
 187     $me_fields_prev =
 188         isset($_REQUEST['fields_prev']['multi_edit'][$rowcount])
 189         ? $_REQUEST['fields_prev']['multi_edit'][$rowcount]
 190         : null;
 191     $me_funcs =
 192         isset($_REQUEST['funcs']['multi_edit'][$rowcount])
 193         ? $_REQUEST['funcs']['multi_edit'][$rowcount]
 194         : null;
 195     $me_fields_type =
 196         isset($_REQUEST['fields_type']['multi_edit'][$rowcount])
 197         ? $_REQUEST['fields_type']['multi_edit'][$rowcount]
 198         : null;
 199     $me_fields_null =
 200         isset($_REQUEST['fields_null']['multi_edit'][$rowcount])
 201         ? $_REQUEST['fields_null']['multi_edit'][$rowcount]
 202         : null;
 203     $me_fields_null_prev =
 204         isset($_REQUEST['fields_null_prev']['multi_edit'][$rowcount])
 205         ? $_REQUEST['fields_null_prev']['multi_edit'][$rowcount]
 206         : null;
 207     $me_auto_increment =
 208         isset($_REQUEST['auto_increment']['multi_edit'][$rowcount])
 209         ? $_REQUEST['auto_increment']['multi_edit'][$rowcount]
 210         : null;
 211
 212     if ($blob_streaming_active) {
 213         $primary_field = PMA_BS_GetPrimaryField($GLOBALS['db'], $GLOBALS['table']);
 214     }
 215
 216     // Fetch the current values of a row to use in case we have a protected field
 217     // @todo possibly move to ./libraries/tbl_replace_fields.inc.php
 218     if ($is_insert && $using_key && isset($me_fields_type) && is_array($me_fields_type) && isset($where_clause)) {
 219         $prot_row = PMA_DBI_fetch_single_row('SELECT * FROM ' . PMA_backquote($table) . ' WHERE ' . $where_clause . ';');
 220     }
 221     foreach ($me_fields as $key => $val) {
 222
 223         // Note: $key is an md5 of the fieldname. The actual fieldname is available in $me_fields_name[$key]
 224
 225         require './libraries/tbl_replace_fields.inc.php';
 226
 227         // rajk - for blobstreaming
 228         if ($blob_streaming_active && (NULL != $primary_field || strlen($primary_field) > 0)) {
 229             $remove_blob_repo = isset($_REQUEST['remove_blob_repo_' . $key]) ? $_REQUEST['remove_blob_repo_' . $key] : NULL;
 230             $upload_blob_repo = isset($_REQUEST['upload_blob_repo_' . $key]) ? $_REQUEST['upload_blob_repo_' . $key] : NULL;
 231
 232             // checks if an existing blob repository reference should be removed
 233             if (isset($remove_blob_repo) && !isset($upload_blob_repo)) {
 234                 $remove_blob_reference = $_REQUEST['remove_blob_ref_' . $key];
 235                 if (isset($remove_blob_reference)) {
 236                     $val = "''";
 237                 }
 238
 239                 // checks if this field requires a bs reference attached to it
 240                 if (isset($upload_blob_repo)) {
 241                         // get the most recent BLOB reference
 242                     $bs_reference = PMA_File::getRecentBLOBReference();
 243
 244                     // if the most recent BLOB reference exists, set it as a field value
 245                     if (!is_null($bs_reference)) {
 246                         $val = "'" . PMA_sqlAddslashes($bs_reference) . "'";
 247                     }
 248                 }
 249             }
 250         }
 251
 252         if (empty($me_funcs[$key])) {
 253             $cur_value = $val;
 254         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 255             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 256         } elseif (in_array($me_funcs[$key], $func_no_param)) {
 257             $cur_value = $me_funcs[$key] . '()';
 258         } else {
 259             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 260         }
 261
 262         //  i n s e r t
 263         if ($is_insert) {
 264             // no need to add column into the valuelist
 265             if (strlen($cur_value)) {
 266                 $query_values[] = $cur_value;
 267                 // first inserted row so prepare the list of fields
 268                 if (empty($value_sets)) {
 269                     $query_fields[] = PMA_backquote($me_fields_name[$key]);
 270                 }
 271             }
 272
 273         //  u p d a t e
 274         } elseif (!empty($me_fields_null_prev[$key])
 275          && !isset($me_fields_null[$key])) {
 276             // field had the null checkbox before the update
 277             // field no longer has the null checkbox
 278             $query_values[] = PMA_backquote($me_fields_name[$key]) . ' = ' . $cur_value;
 279         } elseif (empty($me_funcs[$key])
 280          && isset($me_fields_prev[$key])
 281          && ("'" . PMA_sqlAddslashes($me_fields_prev[$key]) . "'" == $val)) {
 282             // No change for this column and no MySQL function is used -> next column
 283             continue;
 284         } elseif (! empty($val)) {
 285             // avoid setting a field to NULL when it's already NULL
 286             // (field had the null checkbox before the update
 287             //  field still has the null checkbox)
 288             if (!(! empty($me_fields_null_prev[$key])
 289              && isset($me_fields_null[$key]))) {
 290                  $query_values[] = PMA_backquote($me_fields_name[$key]) . ' = ' . $cur_value;
 291             }
 292         }
 293     } // end foreach ($me_fields as $key => $val)
 294
 295     if (count($query_values) > 0) {
 296         if ($is_insert) {
 297             $value_sets[] = implode(', ', $query_values);
 298         } else {
 299             // build update query
 300             $query[] = 'UPDATE ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 301                 . ' SET ' . implode(', ', $query_values) . ' WHERE ' . $where_clause . ($_REQUEST['clause_is_unique'] ? '' : ' LIMIT 1');
 302
 303         }
 304     }
 305 } // end foreach ($loop_array as $where_clause)
 306 unset($me_fields_name, $me_fields_prev, $me_funcs, $me_fields_type, $me_fields_null, $me_fields_null_prev,
 307     $me_auto_increment, $cur_value, $key, $val, $loop_array, $where_clause, $using_key,
 308     $func_no_param);
 309
 310
 311 // Builds the sql query
 312 if ($is_insert && count($value_sets) > 0) {
 313     $query[] = 'INSERT INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 314         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 315
 316     unset($query_fields, $value_sets);
 317
 318     $message = PMA_Message::success('strRowsInserted');
 319 } elseif (! empty($query)) {
 320     $message = PMA_Message::success('strRowsAffected');
 321 } else {
 322     // No change -> move back to the calling script
 323     $message = PMA_Message::success('strNoModification');
 324     $GLOBALS['js_include'][] = 'functions.js';
 325     $active_page = $goto_include;
 326     require_once './libraries/header.inc.php';
 327     require './' . PMA_securePath($goto_include);
 328     exit;
 329 }
 330 unset($me_fields, $is_insert);
 331
 332 /**
 333  * Executes the sql query and get the result, then move back to the calling
 334  * page
 335  */
 336 if (! empty($GLOBALS['sql_query'])) {
 337     $url_params['sql_query'] = $GLOBALS['sql_query'];
 338     $return_to_sql_query = $GLOBALS['sql_query'];
 339 }
 340 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 341 // to ensure that the query is displayed in case of
 342 // "insert as new row" and then "insert another new row"
 343 $GLOBALS['display_query'] = $GLOBALS['sql_query'];
 344
 345 $total_affected_rows = 0;
 346 $last_messages = array();
 347 $warning_messages = array();
 348 $error_messages = array();
 349
 350 foreach ($query as $single_query) {
 351     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 352         $result = PMA_DBI_try_query($single_query);
 353     } else {
 354         $result = PMA_DBI_query($single_query);
 355     }
 356
 357     if (! $result) {
 358         $error_messages[] = PMA_DBI_getError();
 359     } else {
 360         // the following is a real assignment:
 361         if ($tmp = @PMA_DBI_affected_rows()) {
 362             $total_affected_rows += $tmp;
 363         }
 364         unset($tmp);
 365
 366         $insert_id = PMA_DBI_insert_id();
 367         if ($insert_id != 0) {
 368             // insert_id is id of FIRST record inserted in one insert, so if we
 369             // inserted multiple rows, we had to increment this
 370
 371             if ($total_affected_rows > 0) {
 372                 $insert_id = $insert_id + $total_affected_rows - 1;
 373             }
 374             $last_message = PMA_Message::notice('strInsertedRowId');
 375             $last_message->addParam($insert_id);
 376             $last_messages[] = $last_message;
 377         }
 378         PMA_DBI_free_result($result);
 379     } // end if
 380
 381     foreach (PMA_DBI_get_warnings() as $warning) {
 382         $warning_messages[] = $warning['Level'] . ': #' . $warning['Code']
 383             . ' ' . $warning['Message'];
 384     }
 385
 386     unset($result);
 387 }
 388 unset($single_query, $query);
 389
 390 $message->addParam($total_affected_rows);
 391 $message->addMessages($last_messages, '<br />');
 392
 393 if (! empty($warning_messages)) {
 394     /**
 395      * @todo use a <div class="warning"> in PMA_showMessage() for this part of
 396      * the message
 397      */
 398     $message->addMessages($warning_messages, '<br />');
 399     $message->isWarning(true);
 400 }
 401 if (! empty($error_messages)) {
 402     $message->addMessages($error_messages);
 403     $message->isError(true);
 404 }
 405 unset($error_messages, $warning_messages, $total_affected_rows, $last_messages, $last_message);
 406
 407 if (isset($return_to_sql_query)) {
 408     $disp_query = $GLOBALS['sql_query'];
 409     $disp_message = $message;
 410     unset($message);
 411     $GLOBALS['sql_query'] = $return_to_sql_query;
 412 }
 413
 414 $GLOBALS['js_include'][] = 'tbl_change.js';
 415 $GLOBALS['js_include'][] = 'functions.js';
 416 // in case we call sql.php which needs those:
 417 $GLOBALS['js_include'][] = 'mootools.js';
 418
 419 $active_page = $goto_include;
 420
 421 /**
 422  * If user asked for "and then Insert another new row" we have to remove
 423  * WHERE clause information so that tbl_change.php does not go back
 424  * to the current record
 425  */
 426 if (isset($_REQUEST['after_insert']) && 'new_insert' == $_REQUEST['after_insert']) {
 427         unset($_REQUEST['where_clause']);
 428 }
 429
 430 /**
 431  * Load header.
 432  */
 433 require_once './libraries/header.inc.php';
 434 /**
 435  * Load target page.
 436  */
 437 require './' . PMA_securePath($goto_include);
 438 exit;
 439 ?>