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  */
  39
  40 /**
  41  * do not import request variable into global scope
  42  *
  43  * cannot be used as long as it could happen that the $goto file that is included
  44  * at the end of this script is not updated to work without imported request variables
  45  *
  46  * @todo uncomment this if all possible included files to rely on import request variables
  47 if (! defined('PMA_NO_VARIABLES_IMPORT')) {
  48     define('PMA_NO_VARIABLES_IMPORT', true);
  49 }
  50  */
  51 /**
  52  * Gets some core libraries
  53  */
  54 require_once './libraries/common.inc.php';
  55
  56 // Check parameters
  57 PMA_checkParameters(array('db', 'table', 'goto'));
  58
  59 PMA_DBI_select_db($GLOBALS['db']);
  60
  61 /**
  62  * Initializes some variables
  63  */
  64 $goto_include = false;
  65
  66 if (isset($_REQUEST['insert_rows']) && is_numeric($_REQUEST['insert_rows']) && $_REQUEST['insert_rows'] != $cfg['InsertRows']) {
  67     $cfg['InsertRows'] = $_REQUEST['insert_rows'];
  68     $GLOBALS['js_include'][] = 'tbl_change.js';
  69     require_once './libraries/header.inc.php';
  70     require './tbl_change.php';
  71     exit;
  72 }
  73
  74 if (isset($_REQUEST['after_insert'])
  75  && in_array($_REQUEST['after_insert'], array('new_insert', 'same_insert', 'edit_next'))) {
  76     $url_params['after_insert'] = $_REQUEST['after_insert'];
  77     //$GLOBALS['goto'] = 'tbl_change.php';
  78     $goto_include = 'tbl_change.php';
  79
  80     if (isset($_REQUEST['primary_key'])) {
  81         if ($_REQUEST['after_insert'] == 'same_insert') {
  82             foreach ($_REQUEST['primary_key'] as $pk) {
  83                 $url_params['primary_key'][] = $pk;
  84             }
  85         } elseif ($_REQUEST['after_insert'] == 'edit_next') {
  86             foreach ($_REQUEST['primary_key'] as $pk) {
  87                 $local_query    = 'SELECT * FROM ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
  88                                 . ' WHERE ' . str_replace('` =', '` >', $pk)
  89                                 . ' LIMIT 1;';
  90                 $res            = PMA_DBI_query($local_query);
  91                 $row            = PMA_DBI_fetch_row($res);
  92                 $meta           = PMA_DBI_get_fields_meta($res);
  93                 // must find a unique condition based on unique key,
  94                 // not a combination of all fields
  95                 if ($tmp = PMA_getUniqueCondition($res, count($meta), $meta, $row, true)) {
  96                     $_SESSION['edit_next'] = $tmp;
  97                 }
  98                 unset($tmp);
  99             }
 100         }
 101     }
 102 } elseif (! empty($GLOBALS['goto'])) {
 103     if (! preg_match('@^[a-z_]+\.php$@', $GLOBALS['goto'])) {
 104         // this should NOT happen
 105         //$GLOBALS['goto'] = false;
 106         $goto_include = false;
 107     } else {
 108         $goto_include = $GLOBALS['goto'];
 109     }
 110     if ($GLOBALS['goto'] == 'db_sql.php' && strlen($GLOBALS['table'])) {
 111         $GLOBALS['table'] = '';
 112     }
 113 }
 114
 115 if (! $goto_include) {
 116     if (! strlen($GLOBALS['table'])) {
 117         $goto_include = 'db_sql.php';
 118     } else {
 119         $goto_include = 'tbl_sql.php';
 120     }
 121 }
 122
 123 // Defines the url to return in case of failure of the query
 124 if (isset($_REQUEST['err_url'])) {
 125     $err_url = $_REQUEST['err_url'];
 126 } else {
 127     $err_url = 'tbl_change.php' . PMA_generate_common_url($url_params);
 128 }
 129
 130 /**
 131  * Prepares the update/insert of a row
 132  */
 133 if (isset($_REQUEST['primary_key'])) {
 134     // we were editing something => use primary key
 135     $loop_array = (is_array($_REQUEST['primary_key']) ? $_REQUEST['primary_key'] : array($_REQUEST['primary_key']));
 136     $using_key  = true;
 137     $is_insert  = ($_REQUEST['submit_type'] == $GLOBALS['strInsertAsNewRow']);
 138 } else {
 139     // new row => use indexes
 140     $loop_array = array();
 141     foreach ($_REQUEST['fields']['multi_edit'] as $key => $dummy) {
 142         $loop_array[] = $key;
 143     }
 144     $using_key  = false;
 145     $is_insert  = true;
 146 }
 147
 148 $query = array();
 149 $value_sets = array();
 150 $func_no_param = array(
 151     'NOW',
 152     'CURDATE',
 153     'CURTIME',
 154     'UTC_DATE',
 155     'UTC_TIME',
 156     'UTC_TIMESTAMP',
 157     'UNIX_TIMESTAMP',
 158     'RAND',
 159     'USER',
 160     'LAST_INSERT_ID',
 161 );
 162
 163 foreach ($loop_array as $rowcount => $primary_key) {
 164     // skip fields to be ignored
 165     if (! $using_key && isset($_REQUEST['insert_ignore_' . $primary_key])) {
 166         continue;
 167     }
 168
 169     // Defines the SET part of the sql query
 170     $query_values = array();
 171
 172     // Map multi-edit keys to single-level arrays, dependent on how we got the fields
 173     $me_fields =
 174         isset($_REQUEST['fields']['multi_edit'][$rowcount])
 175         ? $_REQUEST['fields']['multi_edit'][$rowcount]
 176         : array();
 177     $me_fields_prev =
 178         isset($_REQUEST['fields_prev']['multi_edit'][$rowcount])
 179         ? $_REQUEST['fields_prev']['multi_edit'][$rowcount]
 180         : null;
 181     $me_funcs =
 182         isset($_REQUEST['funcs']['multi_edit'][$rowcount])
 183         ? $_REQUEST['funcs']['multi_edit'][$rowcount]
 184         : null;
 185     $me_fields_type =
 186         isset($_REQUEST['fields_type']['multi_edit'][$rowcount])
 187         ? $_REQUEST['fields_type']['multi_edit'][$rowcount]
 188         : null;
 189     $me_fields_null =
 190         isset($_REQUEST['fields_null']['multi_edit'][$rowcount])
 191         ? $_REQUEST['fields_null']['multi_edit'][$rowcount]
 192         : null;
 193     $me_fields_null_prev =
 194         isset($_REQUEST['fields_null_prev']['multi_edit'][$rowcount])
 195         ? $_REQUEST['fields_null_prev']['multi_edit'][$rowcount]
 196         : null;
 197     $me_auto_increment =
 198         isset($_REQUEST['auto_increment']['multi_edit'][$rowcount])
 199         ? $_REQUEST['auto_increment']['multi_edit'][$rowcount]
 200         : null;
 201
 202     foreach ($me_fields as $key => $val) {
 203
 204         require './libraries/tbl_replace_fields.inc.php';
 205
 206         if (empty($me_funcs[$key])) {
 207             $cur_value = $val;
 208         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 209             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 210         } elseif (in_array($me_funcs[$key], $func_no_param)) {
 211             $cur_value = $me_funcs[$key] . '()';
 212         } else {
 213             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 214         }
 215
 216         //  i n s e r t
 217         if ($is_insert) {
 218             // no need to add column into the valuelist
 219             if (strlen($cur_value)) {
 220                 $query_values[] = $cur_value;
 221                 // first inserted row so prepare the list of fields
 222                 if (empty($value_sets)) {
 223                     $query_fields[] = PMA_backquote($key);
 224                 }
 225             }
 226
 227         //  u p d a t e
 228         } elseif (!empty($me_fields_null_prev[$key])
 229          && !isset($me_fields_null[$key])) {
 230             // field had the null checkbox before the update
 231             // field no longer has the null checkbox
 232             $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 233         } elseif (empty($me_funcs[$key])
 234          && isset($me_fields_prev[$key])
 235          && ("'" . PMA_sqlAddslashes($me_fields_prev[$key]) . "'" == $val)) {
 236             // No change for this column and no MySQL function is used -> next column
 237             continue;
 238         } elseif (! empty($val)) {
 239             // avoid setting a field to NULL when it's already NULL
 240             // (field had the null checkbox before the update
 241             //  field still has the null checkbox)
 242             if (!(! empty($me_fields_null_prev[$key])
 243              && isset($me_fields_null[$key]))) {
 244                 $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 245             }
 246         }
 247     } // end foreach ($me_fields as $key => $val)
 248
 249     if (count($query_values) > 0) {
 250         if ($is_insert) {
 251             $value_sets[] = implode(', ', $query_values);
 252         } else {
 253             // build update query
 254             $query[] = 'UPDATE ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 255                     . ' SET ' . implode(', ', $query_values) . ' WHERE ' . $primary_key . ' LIMIT 1';
 256
 257         }
 258     }
 259 } // end foreach ($loop_array as $primary_key)
 260 unset($me_fields_prev, $me_funcs, $me_fields_type, $me_fields_null, $me_fields_null_prev,
 261     $me_auto_increment, $cur_value, $key, $val, $loop_array, $primary_key, $using_key,
 262     $func_no_param);
 263
 264
 265 // Builds the sql query
 266 if ($is_insert && count($value_sets) > 0) {
 267     $query[] = 'INSERT INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 268         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 269
 270     unset($query_fields, $value_sets);
 271
 272     $message = PMA_Message::success('strRowsInserted');
 273 } elseif (! empty($query)) {
 274     $message = PMA_Message::success('strRowsAffected');
 275 } else {
 276     // No change -> move back to the calling script
 277     $message = PMA_Message::success('strNoModification');
 278     $GLOBALS['js_include'][] = 'functions.js';
 279     $active_page = $goto_include;
 280     require_once './libraries/header.inc.php';
 281     require './' . PMA_securePath($goto_include);
 282     exit;
 283 }
 284 unset($me_fields, $is_insert);
 285
 286 /**
 287  * Executes the sql query and get the result, then move back to the calling
 288  * page
 289  */
 290 if (! empty($GLOBALS['sql_query'])) {
 291     $url_params['sql_query'] = $GLOBALS['sql_query'];
 292     $return_to_sql_query = $GLOBALS['sql_query'];
 293 }
 294 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 295 $total_affected_rows = 0;
 296 $last_messages = array();
 297 $warning_messages = array();
 298 $error_messages = array();
 299
 300 foreach ($query as $single_query) {
 301     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 302         $result = PMA_DBI_try_query($single_query);
 303     } else {
 304         $result = PMA_DBI_query($single_query);
 305     }
 306
 307     if (! $result) {
 308         $error_messages[] = PMA_DBI_getError();
 309     } else {
 310         if (@PMA_DBI_affected_rows()) {
 311             $total_affected_rows += @PMA_DBI_affected_rows();
 312         }
 313
 314         $insert_id = PMA_DBI_insert_id();
 315         if ($insert_id != 0) {
 316             // insert_id is id of FIRST record inserted in one insert, so if we
 317             // inserted multiple rows, we had to increment this
 318
 319             if ($total_affected_rows > 0) {
 320                 $insert_id = $insert_id + $total_affected_rows - 1;
 321             }
 322             $last_message = PMA_Message::notice('strInsertedRowId');
 323             $last_message->addParam($insert_id);
 324             $last_messages[] = $last_message;
 325         }
 326         PMA_DBI_free_result($result);
 327     } // end if
 328
 329     foreach (PMA_DBI_get_warnings() as $warning) {
 330         $warning_messages[] = $warning['Level'] . ': #' . $warning['Code']
 331             . ' ' . $warning['Message'];
 332     }
 333
 334     unset($result);
 335 }
 336 unset($single_query, $query);
 337
 338 $message->addParam($total_affected_rows);
 339 $message->addMessages($last_messages, '<br />');
 340
 341 if (! empty($warning_messages)) {
 342     /**
 343      * @todo use a <div class="warning"> in PMA_showMessage() for this part of
 344      * the message
 345      */
 346     $message->addMessages($warning_messages, '<br />');
 347     $message->isWarning(true);
 348 }
 349 if (! empty($error_messages)) {
 350     $message->addMessages($error_messages);
 351     $message->isError(true);
 352 }
 353 unset($error_messages, $warning_messages, $total_affected_rows, $last_messages, $last_message);
 354
 355 if (isset($return_to_sql_query)) {
 356     $disp_query = $GLOBALS['sql_query'];
 357     $disp_message = $message;
 358     unset($message);
 359     $GLOBALS['sql_query'] = $return_to_sql_query;
 360 }
 361
 362 $GLOBALS['js_include'][] = 'tbl_change.js';
 363 $GLOBALS['js_include'][] = 'functions.js';
 364 // in case we call sql.php which needs those:
 365 $GLOBALS['js_include'][] = 'mootools.js';
 366 $GLOBALS['js_include'][] = 'mootools-domready.js';
 367
 368 $active_page = $goto_include;
 369 require_once './libraries/header.inc.php';
 370 require './' . PMA_securePath($goto_include);
 371 exit;
 372 ?>