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