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  *
   9  * @todo 'edit_next' tends to not work as expected if used ... at least there is no order by
  10  *       it needs the original query and the row number and than replace the LIMIT clause
  11  * @uses    PMA_checkParameters()
  12  * @uses    PMA_DBI_select_db()
  13  * @uses    PMA_DBI_query()
  14  * @uses    PMA_DBI_fetch_row()
  15  * @uses    PMA_DBI_get_fields_meta()
  16  * @uses    PMA_DBI_free_result()
  17  * @uses    PMA_DBI_try_query()
  18  * @uses    PMA_DBI_getError()
  19  * @uses    PMA_DBI_affected_rows()
  20  * @uses    PMA_DBI_insert_id()
  21  * @uses    PMA_backquote()
  22  * @uses    PMA_getUniqueCondition()
  23  * @uses    PMA_sqlAddslashes()
  24  * @uses    PMA_securePath()
  25  * @uses    PMA_sendHeaderLocation()
  26  * @uses    str_replace()
  27  * @uses    count()
  28  * @uses    file_exists()
  29  * @uses    strlen()
  30  * @uses    str_replace()
  31  * @uses    preg_replace()
  32  * @uses    is_array()
  33  * @uses    $GLOBALS['db']
  34  * @uses    $GLOBALS['table']
  35  * @uses    $GLOBALS['goto']
  36  * @uses    $GLOBALS['sql_query']
  37  * @uses    PMA_File::getRecentBLOBReference()
  38  * @package phpMyAdmin
  39  */
  40
  41 /**
  42  * do not import request variable into global scope
  43  *
  44  * cannot be used as long as it could happen that the $goto file that is included
  45  * at the end of this script is not updated to work without imported request variables
  46  *
  47  * @todo uncomment this if all possible included files to rely on import request variables
  48 if (! defined('PMA_NO_VARIABLES_IMPORT')) {
  49     define('PMA_NO_VARIABLES_IMPORT', true);
  50 }
  51  */
  52 /**
  53  * Gets some core libraries
  54  */
  55 require_once './libraries/common.inc.php';
  56 $blob_streaming_active = $GLOBALS['PMA_Config']->get('BLOBSTREAMING_PLUGINS_EXIST');
  57
  58 // Check parameters
  59 PMA_checkParameters(array('db', 'table', 'goto'));
  60
  61 PMA_DBI_select_db($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['where_clause'])) {
  83         if ($_REQUEST['after_insert'] == 'same_insert') {
  84             foreach ($_REQUEST['where_clause'] as $one_where_clause) {
  85                 $url_params['where_clause'][] = $one_where_clause;
  86             }
  87         } elseif ($_REQUEST['after_insert'] == 'edit_next') {
  88             foreach ($_REQUEST['where_clause'] as $one_where_clause) {
  89                 $local_query    = 'SELECT * FROM ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
  90                                 . ' WHERE ' . str_replace('` =', '` >', $one_where_clause)
  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['where_clause'])) {
 137     // we were editing something => use the WHERE clause
 138     $loop_array = (is_array($_REQUEST['where_clause']) ? $_REQUEST['where_clause'] : array($_REQUEST['where_clause']));
 139     $using_key  = true;
 140     $is_insert  = ($_REQUEST['submit_type'] == 'insert') || ($_REQUEST['submit_type'] == 'showinsert') || ($_REQUEST['submit_type'] == 'insertignore');
 141     $is_insertignore  = ($_REQUEST['submit_type'] == 'insertignore');
 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     $is_insertignore = false;
 151 }
 152
 153 $query = array();
 154 $value_sets = array();
 155 $func_no_param = array(
 156     'NOW',
 157     'CURDATE',
 158     'CURTIME',
 159     'UTC_DATE',
 160     'UTC_TIME',
 161     'UTC_TIMESTAMP',
 162     'UNIX_TIMESTAMP',
 163     'RAND',
 164     'USER',
 165     'LAST_INSERT_ID',
 166     'UUID',
 167     'CURRENT_USER',
 168 );
 169
 170 foreach ($loop_array as $rowcount => $where_clause) {
 171     // skip fields to be ignored
 172     if (! $using_key && isset($_REQUEST['insert_ignore_' . $where_clause])) {
 173         continue;
 174     }
 175
 176     // Defines the SET part of the sql query
 177     $query_values = array();
 178
 179     // Map multi-edit keys to single-level arrays, dependent on how we got the fields
 180     $me_fields =
 181         isset($_REQUEST['fields']['multi_edit'][$rowcount])
 182         ? $_REQUEST['fields']['multi_edit'][$rowcount]
 183         : array();
 184     $me_fields_name =
 185         isset($_REQUEST['fields_name']['multi_edit'][$rowcount])
 186         ? $_REQUEST['fields_name']['multi_edit'][$rowcount]
 187         : null;
 188     $me_fields_prev =
 189         isset($_REQUEST['fields_prev']['multi_edit'][$rowcount])
 190         ? $_REQUEST['fields_prev']['multi_edit'][$rowcount]
 191         : null;
 192     $me_funcs =
 193         isset($_REQUEST['funcs']['multi_edit'][$rowcount])
 194         ? $_REQUEST['funcs']['multi_edit'][$rowcount]
 195         : null;
 196     $me_fields_type =
 197         isset($_REQUEST['fields_type']['multi_edit'][$rowcount])
 198         ? $_REQUEST['fields_type']['multi_edit'][$rowcount]
 199         : null;
 200     $me_fields_null =
 201         isset($_REQUEST['fields_null']['multi_edit'][$rowcount])
 202         ? $_REQUEST['fields_null']['multi_edit'][$rowcount]
 203         : null;
 204     $me_fields_null_prev =
 205         isset($_REQUEST['fields_null_prev']['multi_edit'][$rowcount])
 206         ? $_REQUEST['fields_null_prev']['multi_edit'][$rowcount]
 207         : null;
 208     $me_auto_increment =
 209         isset($_REQUEST['auto_increment']['multi_edit'][$rowcount])
 210         ? $_REQUEST['auto_increment']['multi_edit'][$rowcount]
 211         : null;
 212
 213     if ($blob_streaming_active) {
 214         $primary_field = PMA_BS_GetPrimaryField($GLOBALS['db'], $GLOBALS['table']);
 215     }
 216
 217     // Fetch the current values of a row to use in case we have a protected field
 218     // @todo possibly move to ./libraries/tbl_replace_fields.inc.php
 219     if ($is_insert && $using_key && isset($me_fields_type) && is_array($me_fields_type) && isset($where_clause)) {
 220         $prot_row = PMA_DBI_fetch_single_row('SELECT * FROM ' . PMA_backquote($table) . ' WHERE ' . $where_clause . ';');
 221     }
 222     foreach ($me_fields as $key => $val) {
 223
 224         // Note: $key is an md5 of the fieldname. The actual fieldname is available in $me_fields_name[$key]
 225
 226         require './libraries/tbl_replace_fields.inc.php';
 227
 228         // for blobstreaming
 229         if ($blob_streaming_active && (NULL != $primary_field || strlen($primary_field) > 0)) {
 230             $remove_blob_repo = isset($_REQUEST['remove_blob_repo_' . $key]) ? $_REQUEST['remove_blob_repo_' . $key] : NULL;
 231             $upload_blob_repo = isset($_REQUEST['upload_blob_repo_' . $key]) ? $_REQUEST['upload_blob_repo_' . $key] : NULL;
 232
 233             // checks if an existing blob repository reference should be removed
 234             if (isset($remove_blob_repo) && !isset($upload_blob_repo)) {
 235                 $remove_blob_reference = $_REQUEST['remove_blob_ref_' . $key];
 236                 if (isset($remove_blob_reference)) {
 237                     $val = "''";
 238                 }
 239
 240                 // checks if this field requires a bs reference attached to it
 241                 if (isset($upload_blob_repo)) {
 242                     // get the most recent BLOB reference
 243                     $bs_reference = PMA_File::getRecentBLOBReference();
 244
 245                     // if the most recent BLOB reference exists, set it as a field value
 246                     if (!is_null($bs_reference)) {
 247                         $val = "'" . PMA_sqlAddslashes($bs_reference) . "'";
 248                     }
 249                 }
 250             }
 251         }
 252
 253         if (empty($me_funcs[$key])) {
 254             $cur_value = $val;
 255         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 256             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 257         } elseif ('UUID' === $me_funcs[$key]) {
 258             /* This way user will know what UUID new row has */
 259             $uuid = PMA_DBI_fetch_value('SELECT UUID()');
 260             $cur_value = "'" . $uuid . "'";
 261         } elseif (in_array($me_funcs[$key], $func_no_param)) {
 262             $cur_value = $me_funcs[$key] . '()';
 263         } else {
 264             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 265         }
 266
 267         //  i n s e r t
 268         if ($is_insert) {
 269             // no need to add column into the valuelist
 270             if (strlen($cur_value)) {
 271                 $query_values[] = $cur_value;
 272                 // first inserted row so prepare the list of fields
 273                 if (empty($value_sets)) {
 274                     $query_fields[] = PMA_backquote($me_fields_name[$key]);
 275                 }
 276             }
 277
 278         //  u p d a t e
 279         } elseif (!empty($me_fields_null_prev[$key])
 280          && !isset($me_fields_null[$key])) {
 281             // field had the null checkbox before the update
 282             // field no longer has the null checkbox
 283             $query_values[] = PMA_backquote($me_fields_name[$key]) . ' = ' . $cur_value;
 284         } elseif (empty($me_funcs[$key])
 285          && isset($me_fields_prev[$key])
 286          && ("'" . PMA_sqlAddslashes($me_fields_prev[$key]) . "'" == $val)) {
 287             // No change for this column and no MySQL function is used -> next column
 288             continue;
 289         } elseif (! empty($val)) {
 290             // avoid setting a field to NULL when it's already NULL
 291             // (field had the null checkbox before the update
 292             //  field still has the null checkbox)
 293             if (!(! empty($me_fields_null_prev[$key])
 294              && isset($me_fields_null[$key]))) {
 295                  $query_values[] = PMA_backquote($me_fields_name[$key]) . ' = ' . $cur_value;
 296             }
 297         }
 298     } // end foreach ($me_fields as $key => $val)
 299
 300     if (count($query_values) > 0) {
 301         if ($is_insert) {
 302             $value_sets[] = implode(', ', $query_values);
 303         } else {
 304             // build update query
 305             $query[] = 'UPDATE ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 306                 . ' SET ' . implode(', ', $query_values) . ' WHERE ' . $where_clause . ($_REQUEST['clause_is_unique'] ? '' : ' LIMIT 1');
 307
 308         }
 309     }
 310 } // end foreach ($loop_array as $where_clause)
 311 unset($me_fields_name, $me_fields_prev, $me_funcs, $me_fields_type, $me_fields_null, $me_fields_null_prev,
 312     $me_auto_increment, $cur_value, $key, $val, $loop_array, $where_clause, $using_key,
 313     $func_no_param);
 314
 315
 316 // Builds the sql query
 317 if ($is_insert && count($value_sets) > 0) {
 318     if ($is_insertignore) {
 319         $insert_command = 'INSERT IGNORE ';
 320     } else {
 321         $insert_command = 'INSERT ';
 322     }
 323     $query[] = $insert_command . 'INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 324         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 325     unset($insert_command);
 326
 327     unset($query_fields);
 328 } elseif (empty($query)) {
 329     // No change -> move back to the calling script
 330     $message = PMA_Message::success(__('No change'));
 331     $GLOBALS['js_include'][] = 'functions.js';
 332     $active_page = $goto_include;
 333     require_once './libraries/header.inc.php';
 334     require './' . PMA_securePath($goto_include);
 335     exit;
 336 }
 337 unset($me_fields, $is_insertignore);
 338
 339 /**
 340  * Executes the sql query and get the result, then move back to the calling
 341  * page
 342  */
 343 if (! empty($GLOBALS['sql_query'])) {
 344     $url_params['sql_query'] = $GLOBALS['sql_query'];
 345     $return_to_sql_query = $GLOBALS['sql_query'];
 346 }
 347 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 348 // to ensure that the query is displayed in case of
 349 // "insert as new row" and then "insert another new row"
 350 $GLOBALS['display_query'] = $GLOBALS['sql_query'];
 351
 352 $total_affected_rows = 0;
 353 $last_messages = array();
 354 $warning_messages = array();
 355 $error_messages = array();
 356
 357 foreach ($query as $single_query) {
 358     if ($_REQUEST['submit_type'] == 'showinsert') {
 359         $last_messages[] = PMA_Message::notice(__('Showing SQL query'));
 360         continue;
 361     }
 362     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 363         $result = PMA_DBI_try_query($single_query);
 364     } else {
 365         $result = PMA_DBI_query($single_query);
 366     }
 367
 368     if (! $result) {
 369         $error_messages[] = PMA_DBI_getError();
 370     } else {
 371         // the following is a real assignment:
 372         if ($tmp = @PMA_DBI_affected_rows()) {
 373             $total_affected_rows += $tmp;
 374         }
 375         unset($tmp);
 376
 377         $insert_id = PMA_DBI_insert_id();
 378         if ($insert_id != 0) {
 379             // insert_id is id of FIRST record inserted in one insert, so if we
 380             // inserted multiple rows, we had to increment this
 381
 382             if ($total_affected_rows > 0) {
 383                 $insert_id = $insert_id + $total_affected_rows - 1;
 384             }
 385             $last_message = PMA_Message::notice(__('Inserted row id: %1$d'));
 386             $last_message->addParam($insert_id);
 387             $last_messages[] = $last_message;
 388         }
 389         PMA_DBI_free_result($result);
 390     } // end if
 391
 392     foreach (PMA_DBI_get_warnings() as $warning) {
 393         $warning_messages[] = $warning['Level'] . ': #' . $warning['Code']
 394             . ' ' . $warning['Message'];
 395     }
 396
 397     unset($result);
 398 }
 399 unset($single_query, $query);
 400
 401 if ($is_insert && count($value_sets) > 0) {
 402     $message = PMA_Message::inserted_rows($total_affected_rows);
 403 } else {
 404     $message = PMA_Message::affected_rows($total_affected_rows);
 405 }
 406
 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'][] = 'jquery/jquery-ui-1.8.custom.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 ?>