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 $goto file that is included
  46  * at the end of this script is not updated to work without imported request variables
  47  *
  48  * @todo uncomment this if all possible included files to rely on import request variables
  49 if (! defined('PMA_NO_VARIABLES_IMPORT')) {
  50     define('PMA_NO_VARIABLES_IMPORT', true);
  51 }
  52  */
  53 /**
  54  * Gets some core libraries
  55  */
  56 require_once './libraries/common.inc.php';
  57
  58 // Check parameters
  59 PMA_checkParameters(array('db', 'table', 'goto'));
  60
  61 PMA_DBI_select_db($GLOBALS['db']);
  62
  63 /**
  64  * Initializes some variables
  65  */
  66 $goto_include = false;
  67
  68 if (isset($_REQUEST['insert_rows']) && is_numeric($_REQUEST['insert_rows']) && $_REQUEST['insert_rows'] != $cfg['InsertRows']) {
  69     $cfg['InsertRows'] = $_REQUEST['insert_rows'];
  70     $GLOBALS['js_include'][] = 'tbl_change.js';
  71     require_once './libraries/header.inc.php';
  72     require './tbl_change.php';
  73     exit;
  74 }
  75
  76 if (isset($_REQUEST['after_insert'])
  77  && in_array($_REQUEST['after_insert'], array('new_insert', 'same_insert', 'edit_next'))) {
  78     $url_params['after_insert'] = $_REQUEST['after_insert'];
  79     //$GLOBALS['goto'] = 'tbl_change.php';
  80     $goto_include = 'tbl_change.php';
  81
  82     if (isset($_REQUEST['primary_key'])) {
  83         if ($_REQUEST['after_insert'] == 'same_insert') {
  84             foreach ($_REQUEST['primary_key'] as $pk) {
  85                 $url_params['primary_key'][] = $pk;
  86             }
  87         } elseif ($_REQUEST['after_insert'] == 'edit_next') {
  88             foreach ($_REQUEST['primary_key'] as $pk) {
  89                 $local_query    = 'SELECT * FROM ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
  90                                 . ' WHERE ' . str_replace('` =', '` >', $pk)
  91                                 . ' LIMIT 1;';
  92                 $res            = PMA_DBI_query($local_query);
  93                 $row            = PMA_DBI_fetch_row($res);
  94                 $meta           = PMA_DBI_get_fields_meta($res);
  95                 // must find a unique condition based on unique key,
  96                 // not a combination of all fields
  97                 list($unique_condition, $clause_is_unique) = PMA_getUniqueCondition($res, count($meta), $meta, $row, true);
  98                 if (! empty($unique_condition)) {
  99                     $_SESSION['edit_next'] = $unique_condition;
 100                 }
 101                 unset($unique_condition, $clause_is_unique);
 102             }
 103         }
 104     }
 105 } elseif (! empty($GLOBALS['goto'])) {
 106     if (! preg_match('@^[a-z_]+\.php$@', $GLOBALS['goto'])) {
 107         // this should NOT happen
 108         //$GLOBALS['goto'] = false;
 109         $goto_include = false;
 110     } else {
 111         $goto_include = $GLOBALS['goto'];
 112     }
 113     if ($GLOBALS['goto'] == 'db_sql.php' && strlen($GLOBALS['table'])) {
 114         $GLOBALS['table'] = '';
 115     }
 116 }
 117
 118 if (! $goto_include) {
 119     if (! strlen($GLOBALS['table'])) {
 120         $goto_include = 'db_sql.php';
 121     } else {
 122         $goto_include = 'tbl_sql.php';
 123     }
 124 }
 125
 126 // Defines the url to return in case of failure of the query
 127 if (isset($_REQUEST['err_url'])) {
 128     $err_url = $_REQUEST['err_url'];
 129 } else {
 130     $err_url = 'tbl_change.php' . PMA_generate_common_url($url_params);
 131 }
 132
 133 /**
 134  * Prepares the update/insert of a row
 135  */
 136 if (isset($_REQUEST['primary_key'])) {
 137     // we were editing something => use primary key
 138     $loop_array = (is_array($_REQUEST['primary_key']) ? $_REQUEST['primary_key'] : array($_REQUEST['primary_key']));
 139     $using_key  = true;
 140     $is_insert  = ($_REQUEST['submit_type'] == $GLOBALS['strInsertAsNewRow']);
 141 } else {
 142     // new row => use indexes
 143     $loop_array = array();
 144     foreach ($_REQUEST['fields']['multi_edit'] as $key => $dummy) {
 145         $loop_array[] = $key;
 146     }
 147     $using_key  = false;
 148     $is_insert  = true;
 149 }
 150
 151 $query = array();
 152 $value_sets = array();
 153 $func_no_param = array(
 154     'NOW',
 155     'CURDATE',
 156     'CURTIME',
 157     'UTC_DATE',
 158     'UTC_TIME',
 159     'UTC_TIMESTAMP',
 160     'UNIX_TIMESTAMP',
 161     'RAND',
 162     'USER',
 163     'LAST_INSERT_ID',
 164     'UUID',
 165     'CURRENT_USER',
 166 );
 167
 168 foreach ($loop_array as $rowcount => $primary_key) {
 169     // skip fields to be ignored
 170     if (! $using_key && isset($_REQUEST['insert_ignore_' . $primary_key])) {
 171         continue;
 172     }
 173
 174     // Defines the SET part of the sql query
 175     $query_values = array();
 176
 177     // Map multi-edit keys to single-level arrays, dependent on how we got the fields
 178     $me_fields =
 179         isset($_REQUEST['fields']['multi_edit'][$rowcount])
 180         ? $_REQUEST['fields']['multi_edit'][$rowcount]
 181         : array();
 182     $me_fields_name =
 183         isset($_REQUEST['fields_name']['multi_edit'][$rowcount])
 184         ? $_REQUEST['fields_name']['multi_edit'][$rowcount]
 185         : null;
 186     $me_fields_prev =
 187         isset($_REQUEST['fields_prev']['multi_edit'][$rowcount])
 188         ? $_REQUEST['fields_prev']['multi_edit'][$rowcount]
 189         : null;
 190     $me_funcs =
 191         isset($_REQUEST['funcs']['multi_edit'][$rowcount])
 192         ? $_REQUEST['funcs']['multi_edit'][$rowcount]
 193         : null;
 194     $me_fields_type =
 195         isset($_REQUEST['fields_type']['multi_edit'][$rowcount])
 196         ? $_REQUEST['fields_type']['multi_edit'][$rowcount]
 197         : null;
 198     $me_fields_null =
 199         isset($_REQUEST['fields_null']['multi_edit'][$rowcount])
 200         ? $_REQUEST['fields_null']['multi_edit'][$rowcount]
 201         : null;
 202     $me_fields_null_prev =
 203         isset($_REQUEST['fields_null_prev']['multi_edit'][$rowcount])
 204         ? $_REQUEST['fields_null_prev']['multi_edit'][$rowcount]
 205         : null;
 206     $me_auto_increment =
 207         isset($_REQUEST['auto_increment']['multi_edit'][$rowcount])
 208         ? $_REQUEST['auto_increment']['multi_edit'][$rowcount]
 209         : null;
 210
 211         $primary_field = PMA_BS_GetPrimaryField($GLOBALS['db'], $GLOBALS['table']);
 212
 213     // Fetch the current values of a row to use in case we have a protected field
 214     // @todo possibly move to ./libraries/tbl_replace_fields.inc.php
 215     if ($is_insert && $using_key && isset($me_fields_type) &&
 216         is_array($me_fields_type) && isset($primary_key)) {
 217         $prot_result = PMA_DBI_query('SELECT * FROM ' .
 218                 PMA_backquote($table) . ' WHERE ' . $primary_key . ';');
 219         $prot_row = PMA_DBI_fetch_assoc($prot_result);
 220         PMA_DBI_free_result($prot_result);
 221         unset($prot_result);
 222     }
 223     foreach ($me_fields as $key => $val) {
 224
 225         // Note: $key is an md5 of the fieldname. The actual fieldname is available in $me_fields_name[$key]
 226
 227         require './libraries/tbl_replace_fields.inc.php';
 228
 229         // rajk - for blobstreaming
 230         if (NULL != $primary_field || strlen($primary_field) > 0)
 231         {
 232                 $remove_blob_repo = isset($_REQUEST['remove_blob_repo_' . $key]) ? $_REQUEST['remove_blob_repo_' . $key] : NULL;
 233                 $upload_blob_repo = isset($_REQUEST['upload_blob_repo_' . $key]) ? $_REQUEST['upload_blob_repo_' . $key] : NULL;
 234
 235                 // checks if an existing blob repository reference should be removed
 236                 if (isset($remove_blob_repo) && !isset($upload_blob_repo))
 237                 {
 238                         $remove_blob_reference = $_REQUEST['remove_blob_ref_' . $key];
 239
 240                         if (isset($remove_blob_reference))
 241                                 $val = "''";
 242                 }
 243
 244                 // checks if this field requires a bs reference attached to it
 245                 $requires_bs_reference = isset($upload_blob_repo);
 246
 247                 if ($requires_bs_reference)
 248                 {
 249                         // get the most recent BLOB reference
 250                         $bs_reference = PMA_File::getRecentBLOBReference();
 251
 252                         // if the most recent BLOB reference exists, set it as a field value
 253                         if (!is_null($bs_reference))
 254                                 $val = "'" . PMA_sqlAddslashes($bs_reference) . "'";
 255                 }
 256         }
 257
 258         if (empty($me_funcs[$key])) {
 259             $cur_value = $val;
 260         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 261             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 262         } elseif (in_array($me_funcs[$key], $func_no_param)) {
 263             $cur_value = $me_funcs[$key] . '()';
 264         } else {
 265             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 266         }
 267
 268         //  i n s e r t
 269         if ($is_insert) {
 270             // no need to add column into the valuelist
 271             if (strlen($cur_value)) {
 272                 $query_values[] = $cur_value;
 273                 // first inserted row so prepare the list of fields
 274                 if (empty($value_sets)) {
 275                     $query_fields[] = PMA_backquote($me_fields_name[$key]);
 276                 }
 277             }
 278
 279         //  u p d a t e
 280         } elseif (!empty($me_fields_null_prev[$key])
 281          && !isset($me_fields_null[$key])) {
 282             // field had the null checkbox before the update
 283             // field no longer has the null checkbox
 284             $query_values[] = PMA_backquote($me_fields_name[$key]) . ' = ' . $cur_value;
 285         } elseif (empty($me_funcs[$key])
 286          && isset($me_fields_prev[$key])
 287          && ("'" . PMA_sqlAddslashes($me_fields_prev[$key]) . "'" == $val)) {
 288             // No change for this column and no MySQL function is used -> next column
 289             continue;
 290         } elseif (! empty($val)) {
 291             // avoid setting a field to NULL when it's already NULL
 292             // (field had the null checkbox before the update
 293             //  field still has the null checkbox)
 294             if (!(! empty($me_fields_null_prev[$key])
 295              && isset($me_fields_null[$key]))) {
 296                  $query_values[] = PMA_backquote($me_fields_name[$key]) . ' = ' . $cur_value;
 297             }
 298         }
 299     } // end foreach ($me_fields as $key => $val)
 300
 301     if (count($query_values) > 0) {
 302         if ($is_insert) {
 303             $value_sets[] = implode(', ', $query_values);
 304         } else {
 305             // build update query
 306             $query[] = 'UPDATE ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 307                 . ' SET ' . implode(', ', $query_values) . ' WHERE ' . $primary_key . ($_REQUEST['clause_is_unique'] ? '' : ' LIMIT 1');
 308
 309         }
 310     }
 311 } // end foreach ($loop_array as $primary_key)
 312 unset($me_fields_name, $me_fields_prev, $me_funcs, $me_fields_type, $me_fields_null, $me_fields_null_prev,
 313     $me_auto_increment, $cur_value, $key, $val, $loop_array, $primary_key, $using_key,
 314     $func_no_param);
 315
 316
 317 // Builds the sql query
 318 if ($is_insert && count($value_sets) > 0) {
 319     $query[] = 'INSERT INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 320         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 321
 322     unset($query_fields, $value_sets);
 323
 324     $message = PMA_Message::success('strRowsInserted');
 325 } elseif (! empty($query)) {
 326     $message = PMA_Message::success('strRowsAffected');
 327 } else {
 328     // No change -> move back to the calling script
 329     $message = PMA_Message::success('strNoModification');
 330     $GLOBALS['js_include'][] = 'functions.js';
 331     $active_page = $goto_include;
 332     require_once './libraries/header.inc.php';
 333     require './' . PMA_securePath($goto_include);
 334     exit;
 335 }
 336 unset($me_fields, $is_insert);
 337
 338 /**
 339  * Executes the sql query and get the result, then move back to the calling
 340  * page
 341  */
 342 if (! empty($GLOBALS['sql_query'])) {
 343     $url_params['sql_query'] = $GLOBALS['sql_query'];
 344     $return_to_sql_query = $GLOBALS['sql_query'];
 345 }
 346 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 347 // to ensure that the query is displayed in case of
 348 // "insert as new row" and then "insert another new row"
 349 $GLOBALS['display_query'] = $GLOBALS['sql_query'];
 350
 351 $total_affected_rows = 0;
 352 $last_messages = array();
 353 $warning_messages = array();
 354 $error_messages = array();
 355
 356 foreach ($query as $single_query) {
 357     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 358         $result = PMA_DBI_try_query($single_query);
 359     } else {
 360         $result = PMA_DBI_query($single_query);
 361     }
 362
 363     if (! $result) {
 364         $error_messages[] = PMA_DBI_getError();
 365     } else {
 366         if (@PMA_DBI_affected_rows()) {
 367             $total_affected_rows += @PMA_DBI_affected_rows();
 368         }
 369
 370         $insert_id = PMA_DBI_insert_id();
 371         if ($insert_id != 0) {
 372             // insert_id is id of FIRST record inserted in one insert, so if we
 373             // inserted multiple rows, we had to increment this
 374
 375             if ($total_affected_rows > 0) {
 376                 $insert_id = $insert_id + $total_affected_rows - 1;
 377             }
 378             $last_message = PMA_Message::notice('strInsertedRowId');
 379             $last_message->addParam($insert_id);
 380             $last_messages[] = $last_message;
 381         }
 382         PMA_DBI_free_result($result);
 383     } // end if
 384
 385     foreach (PMA_DBI_get_warnings() as $warning) {
 386         $warning_messages[] = $warning['Level'] . ': #' . $warning['Code']
 387             . ' ' . $warning['Message'];
 388     }
 389
 390     unset($result);
 391 }
 392 unset($single_query, $query);
 393
 394 $message->addParam($total_affected_rows);
 395 $message->addMessages($last_messages, '<br />');
 396
 397 if (! empty($warning_messages)) {
 398     /**
 399      * @todo use a <div class="warning"> in PMA_showMessage() for this part of
 400      * the message
 401      */
 402     $message->addMessages($warning_messages, '<br />');
 403     $message->isWarning(true);
 404 }
 405 if (! empty($error_messages)) {
 406     $message->addMessages($error_messages);
 407     $message->isError(true);
 408 }
 409 unset($error_messages, $warning_messages, $total_affected_rows, $last_messages, $last_message);
 410
 411 if (isset($return_to_sql_query)) {
 412     $disp_query = $GLOBALS['sql_query'];
 413     $disp_message = $message;
 414     unset($message);
 415     $GLOBALS['sql_query'] = $return_to_sql_query;
 416 }
 417
 418 $GLOBALS['js_include'][] = 'tbl_change.js';
 419 $GLOBALS['js_include'][] = 'functions.js';
 420 // in case we call sql.php which needs those:
 421 $GLOBALS['js_include'][] = 'mootools.js';
 422
 423 $active_page = $goto_include;
 424
 425 /**
 426  * If user asked for "and then Insert another new row" we have to remove
 427  * primary key information so that tbl_change.php does not go back
 428  * to the current record
 429  */
 430 if (isset($_REQUEST['after_insert']) && 'new_insert' == $_REQUEST['after_insert']) {
 431         unset($_REQUEST['primary_key']);
 432 }
 433
 434 /**
 435  * Load header.
 436  */
 437 require_once './libraries/header.inc.php';
 438 /**
 439  * Load target page.
 440  */
 441 require './' . PMA_securePath($goto_include);
 442 exit;
 443 ?>