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 = $GLOBALS['PMA_Config']->get('BLOBSTREAMING_PLUGINS_EXIST');
  58
  59 // Check parameters
  60 PMA_checkParameters(array('db', 'table', 'goto'));
  61
  62 PMA_DBI_select_db($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'] == 'insert') || ($_REQUEST['submit_type'] == 'showinsert') || ($_REQUEST['submit_type'] == 'insertignore');
 142     $is_insertignore  = ($_REQUEST['submit_type'] == 'insertignore');
 143 } else {
 144     // new row => use indexes
 145     $loop_array = array();
 146     foreach ($_REQUEST['fields']['multi_edit'] as $key => $dummy) {
 147         $loop_array[] = $key;
 148     }
 149     $using_key  = false;
 150     $is_insert  = true;
 151     $is_insertignore = false;
 152 }
 153
 154 $query = array();
 155 $value_sets = array();
 156 $func_no_param = array(
 157     'NOW',
 158     'CURDATE',
 159     'CURTIME',
 160     'UTC_DATE',
 161     'UTC_TIME',
 162     'UTC_TIMESTAMP',
 163     'UNIX_TIMESTAMP',
 164     'RAND',
 165     'USER',
 166     'LAST_INSERT_ID',
 167     'UUID',
 168     'CURRENT_USER',
 169 );
 170
 171 foreach ($loop_array as $rowcount => $where_clause) {
 172     // skip fields to be ignored
 173     if (! $using_key && isset($_REQUEST['insert_ignore_' . $where_clause])) {
 174         continue;
 175     }
 176
 177     // Defines the SET part of the sql query
 178     $query_values = array();
 179
 180     // Map multi-edit keys to single-level arrays, dependent on how we got the fields
 181     $me_fields =
 182         isset($_REQUEST['fields']['multi_edit'][$rowcount])
 183         ? $_REQUEST['fields']['multi_edit'][$rowcount]
 184         : array();
 185     $me_fields_name =
 186         isset($_REQUEST['fields_name']['multi_edit'][$rowcount])
 187         ? $_REQUEST['fields_name']['multi_edit'][$rowcount]
 188         : null;
 189     $me_fields_prev =
 190         isset($_REQUEST['fields_prev']['multi_edit'][$rowcount])
 191         ? $_REQUEST['fields_prev']['multi_edit'][$rowcount]
 192         : null;
 193     $me_funcs =
 194         isset($_REQUEST['funcs']['multi_edit'][$rowcount])
 195         ? $_REQUEST['funcs']['multi_edit'][$rowcount]
 196         : null;
 197     $me_fields_type =
 198         isset($_REQUEST['fields_type']['multi_edit'][$rowcount])
 199         ? $_REQUEST['fields_type']['multi_edit'][$rowcount]
 200         : null;
 201     $me_fields_null =
 202         isset($_REQUEST['fields_null']['multi_edit'][$rowcount])
 203         ? $_REQUEST['fields_null']['multi_edit'][$rowcount]
 204         : null;
 205     $me_fields_null_prev =
 206         isset($_REQUEST['fields_null_prev']['multi_edit'][$rowcount])
 207         ? $_REQUEST['fields_null_prev']['multi_edit'][$rowcount]
 208         : null;
 209     $me_auto_increment =
 210         isset($_REQUEST['auto_increment']['multi_edit'][$rowcount])
 211         ? $_REQUEST['auto_increment']['multi_edit'][$rowcount]
 212         : null;
 213
 214     if ($blob_streaming_active) {
 215         $primary_field = PMA_BS_GetPrimaryField($GLOBALS['db'], $GLOBALS['table']);
 216     }
 217
 218     // Fetch the current values of a row to use in case we have a protected field
 219     // @todo possibly move to ./libraries/tbl_replace_fields.inc.php
 220     if ($is_insert && $using_key && isset($me_fields_type) && is_array($me_fields_type) && isset($where_clause)) {
 221         $prot_row = PMA_DBI_fetch_single_row('SELECT * FROM ' . PMA_backquote($table) . ' WHERE ' . $where_clause . ';');
 222     }
 223     foreach ($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 ($blob_streaming_active && (NULL != $primary_field || strlen($primary_field) > 0)) {
 231             $remove_blob_repo = isset($_REQUEST['remove_blob_repo_' . $key]) ? $_REQUEST['remove_blob_repo_' . $key] : NULL;
 232             $upload_blob_repo = isset($_REQUEST['upload_blob_repo_' . $key]) ? $_REQUEST['upload_blob_repo_' . $key] : NULL;
 233
 234             // checks if an existing blob repository reference should be removed
 235             if (isset($remove_blob_repo) && !isset($upload_blob_repo)) {
 236                 $remove_blob_reference = $_REQUEST['remove_blob_ref_' . $key];
 237                 if (isset($remove_blob_reference)) {
 238                     $val = "''";
 239                 }
 240
 241                 // checks if this field requires a bs reference attached to it
 242                 if (isset($upload_blob_repo)) {
 243                     // get the most recent BLOB reference
 244                     $bs_reference = PMA_File::getRecentBLOBReference();
 245
 246                     // if the most recent BLOB reference exists, set it as a field value
 247                     if (!is_null($bs_reference)) {
 248                         $val = "'" . PMA_sqlAddslashes($bs_reference) . "'";
 249                     }
 250                 }
 251             }
 252         }
 253
 254         if (empty($me_funcs[$key])) {
 255             $cur_value = $val;
 256         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 257             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 258         } elseif ('UUID' === $me_funcs[$key]) {
 259             /* This way user will know what UUID new row has */
 260             $uuid = PMA_DBI_fetch_value('SELECT UUID()');
 261             $cur_value = "'" . $uuid . "'";
 262         } elseif (in_array($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 ' . $where_clause . ($_REQUEST['clause_is_unique'] ? '' : ' LIMIT 1');
 308
 309         }
 310     }
 311 } // end foreach ($loop_array as $where_clause)
 312 unset($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, $where_clause, $using_key,
 314     $func_no_param);
 315
 316
 317 // Builds the sql query
 318 if ($is_insert && count($value_sets) > 0) {
 319     if ($is_insertignore) {
 320         $insert_command = 'INSERT IGNORE ';
 321     } else {
 322         $insert_command = 'INSERT ';
 323     }
 324     $query[] = $insert_command . 'INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 325         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 326     unset($insert_command);
 327
 328     unset($query_fields, $value_sets);
 329
 330     $message = PMA_Message::success('strRowsInserted');
 331 } elseif (! empty($query)) {
 332     $message = PMA_Message::success('strRowsAffected');
 333 } else {
 334     // No change -> move back to the calling script
 335     $message = PMA_Message::success('strNoModification');
 336     $GLOBALS['js_include'][] = 'functions.js';
 337     $active_page = $goto_include;
 338     require_once './libraries/header.inc.php';
 339     require './' . PMA_securePath($goto_include);
 340     exit;
 341 }
 342 unset($me_fields, $is_insert, $is_insertignore);
 343
 344 /**
 345  * Executes the sql query and get the result, then move back to the calling
 346  * page
 347  */
 348 if (! empty($GLOBALS['sql_query'])) {
 349     $url_params['sql_query'] = $GLOBALS['sql_query'];
 350     $return_to_sql_query = $GLOBALS['sql_query'];
 351 }
 352 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 353 // to ensure that the query is displayed in case of
 354 // "insert as new row" and then "insert another new row"
 355 $GLOBALS['display_query'] = $GLOBALS['sql_query'];
 356
 357 $total_affected_rows = 0;
 358 $last_messages = array();
 359 $warning_messages = array();
 360 $error_messages = array();
 361
 362 foreach ($query as $single_query) {
 363     if ($_REQUEST['submit_type'] == 'showinsert') {
 364         $last_messages[] = PMA_Message::notice('strShowingSQL');
 365         continue;
 366     }
 367     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 368         $result = PMA_DBI_try_query($single_query);
 369     } else {
 370         $result = PMA_DBI_query($single_query);
 371     }
 372
 373     if (! $result) {
 374         $error_messages[] = PMA_DBI_getError();
 375     } else {
 376         // the following is a real assignment:
 377         if ($tmp = @PMA_DBI_affected_rows()) {
 378             $total_affected_rows += $tmp;
 379         }
 380         unset($tmp);
 381
 382         $insert_id = PMA_DBI_insert_id();
 383         if ($insert_id != 0) {
 384             // insert_id is id of FIRST record inserted in one insert, so if we
 385             // inserted multiple rows, we had to increment this
 386
 387             if ($total_affected_rows > 0) {
 388                 $insert_id = $insert_id + $total_affected_rows - 1;
 389             }
 390             $last_message = PMA_Message::notice('strInsertedRowId');
 391             $last_message->addParam($insert_id);
 392             $last_messages[] = $last_message;
 393         }
 394         PMA_DBI_free_result($result);
 395     } // end if
 396
 397     foreach (PMA_DBI_get_warnings() as $warning) {
 398         $warning_messages[] = $warning['Level'] . ': #' . $warning['Code']
 399             . ' ' . $warning['Message'];
 400     }
 401
 402     unset($result);
 403 }
 404 unset($single_query, $query);
 405
 406 $message->addParam($total_affected_rows);
 407 $message->addMessages($last_messages, '<br />');
 408
 409 if (! empty($warning_messages)) {
 410     /**
 411      * @todo use a <div class="warning"> in PMA_showMessage() for this part of
 412      * the message
 413      */
 414     $message->addMessages($warning_messages, '<br />');
 415     $message->isWarning(true);
 416 }
 417 if (! empty($error_messages)) {
 418     $message->addMessages($error_messages);
 419     $message->isError(true);
 420 }
 421 unset($error_messages, $warning_messages, $total_affected_rows, $last_messages, $last_message);
 422
 423 if (isset($return_to_sql_query)) {
 424     $disp_query = $GLOBALS['sql_query'];
 425     $disp_message = $message;
 426     unset($message);
 427     $GLOBALS['sql_query'] = $return_to_sql_query;
 428 }
 429
 430 $GLOBALS['js_include'][] = 'tbl_change.js';
 431 $GLOBALS['js_include'][] = 'functions.js';
 432 // in case we call sql.php which needs those:
 433 $GLOBALS['js_include'][] = 'mootools-more.js';
 434
 435 $active_page = $goto_include;
 436
 437 /**
 438  * If user asked for "and then Insert another new row" we have to remove
 439  * WHERE clause information so that tbl_change.php does not go back
 440  * to the current record
 441  */
 442 if (isset($_REQUEST['after_insert']) && 'new_insert' == $_REQUEST['after_insert']) {
 443         unset($_REQUEST['where_clause']);
 444 }
 445
 446 /**
 447  * Load header.
 448  */
 449 require_once './libraries/header.inc.php';
 450 /**
 451  * Load target page.
 452  */
 453 require './' . PMA_securePath($goto_include);
 454 exit;
 455 ?>