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    urlencode()
  29  * @uses    count()
  30  * @uses    file_exists()
  31  * @uses    strlen()
  32  * @uses    str_replace()
  33  * @uses    preg_replace()
  34  * @uses    is_array()
  35  * @uses    $GLOBALS['db']
  36  * @uses    $GLOBALS['table']
  37  * @uses    $GLOBALS['goto']
  38  * @uses    $GLOBALS['sql_query']
  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 $goto file that is included
  45  * at the end of this script is not updated to work without imported request variables
  46  *
  47  * @todo uncomment this if all possible included files to rely on import request variables
  48 if (! defined('PMA_NO_VARIABLES_IMPORT')) {
  49     define('PMA_NO_VARIABLES_IMPORT', true);
  50 }
  51  */
  52 /**
  53  * Gets some core libraries
  54  */
  55 require_once './libraries/common.inc.php';
  56
  57 // Check parameters
  58 PMA_checkParameters(array('db', 'table', 'goto'));
  59
  60 PMA_DBI_select_db($GLOBALS['db']);
  61
  62 /**
  63  * Initializes some variables
  64  */
  65 $goto_include = false;
  66
  67 if (isset($_REQUEST['insert_rows']) && is_numeric($_REQUEST['insert_rows']) && $_REQUEST['insert_rows'] != $cfg['InsertRows']) {
  68     $cfg['InsertRows'] = $_REQUEST['insert_rows'];
  69     $js_to_run = 'tbl_change.js';
  70     require_once './libraries/header.inc.php';
  71     require './tbl_change.php';
  72     exit;
  73 }
  74
  75 if (isset($_REQUEST['after_insert'])
  76  && in_array($_REQUEST['after_insert'], array('new_insert', 'same_insert', 'edit_next'))) {
  77     $url_params['after_insert'] = $_REQUEST['after_insert'];
  78     //$GLOBALS['goto'] = 'tbl_change.php';
  79     $goto_include = 'tbl_change.php';
  80
  81     if (isset($_REQUEST['primary_key'])) {
  82         if ($_REQUEST['after_insert'] == 'same_insert') {
  83             foreach ($_REQUEST['primary_key'] as $pk) {
  84                 $url_params['primary_key'][] = $pk;
  85             }
  86         } elseif ($_REQUEST['after_insert'] == 'edit_next') {
  87             foreach ($_REQUEST['primary_key'] as $pk) {
  88                 $local_query    = 'SELECT * FROM ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
  89                                 . ' WHERE ' . str_replace('` =', '` >', $pk)
  90                                 . ' LIMIT 1;';
  91                 $res            = PMA_DBI_query($local_query);
  92                 $row            = PMA_DBI_fetch_row($res);
  93                 $meta           = PMA_DBI_get_fields_meta($res);
  94                 // must find a unique condition based on unique key,
  95                 // not a combination of all fields
  96                 if ($tmp = PMA_getUniqueCondition($res, count($meta), $meta, $row, true)) {
  97                     $_SESSION['edit_next'] = $tmp;
  98                 }
  99                 unset($tmp);
 100             }
 101         }
 102     }
 103 } elseif (! empty($GLOBALS['goto'])) {
 104     if (! preg_match('@^[a-z_]+\.php$@', $GLOBALS['goto'])) {
 105         // this should NOT happen
 106         //$GLOBALS['goto'] = false;
 107         $goto_include = false;
 108     } else {
 109         $goto_include = $GLOBALS['goto'];
 110     }
 111     if ($GLOBALS['goto'] == 'db_sql.php' && strlen($GLOBALS['table'])) {
 112         $GLOBALS['table'] = '';
 113     }
 114 }
 115
 116 if (! $goto_include) {
 117     if (! strlen($GLOBALS['table'])) {
 118         $goto_include = 'db_sql.php';
 119     } else {
 120         $goto_include = 'tbl_sql.php';
 121     }
 122 }
 123
 124 // Defines the url to return in case of failure of the query
 125 if (isset($_REQUEST['err_url'])) {
 126     $err_url = $_REQUEST['err_url'];
 127 } else {
 128     $err_url = 'tbl_change.php' . PMA_generate_common_url($url_params);
 129 }
 130
 131 // Misc
 132 $seen_binary = false;
 133
 134 /**
 135  * Prepares the update/insert of a row
 136  */
 137 if (isset($_REQUEST['primary_key'])) {
 138     // we were editing something => use primary key
 139     $loop_array = (is_array($_REQUEST['primary_key']) ? $_REQUEST['primary_key'] : array($_REQUEST['primary_key']));
 140     $using_key  = true;
 141     $is_insert  = ($_REQUEST['submit_type'] == $GLOBALS['strInsertAsNewRow']);
 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 }
 151
 152 $query = array();
 153 $message = '';
 154 $value_sets = array();
 155 $func_no_param = array(
 156     'NOW',
 157     'CURDATE',
 158     'CURTIME',
 159     'UTC_DATE',
 160     'UTC_TIME',
 161     'UTC_TIMESTAMP',
 162     'UNIX_TIMESTAMP',
 163     'RAND',
 164     'USER',
 165     'LAST_INSERT_ID',
 166 );
 167
 168 foreach ($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     $me_fields_prev =
 183         isset($_REQUEST['fields_prev']['multi_edit'][$rowcount])
 184         ? $_REQUEST['fields_prev']['multi_edit'][$rowcount]
 185         : null;
 186     $me_funcs =
 187         isset($_REQUEST['funcs']['multi_edit'][$rowcount])
 188         ? $_REQUEST['funcs']['multi_edit'][$rowcount]
 189         : null;
 190     $me_fields_type =
 191         isset($_REQUEST['fields_type']['multi_edit'][$rowcount])
 192         ? $_REQUEST['fields_type']['multi_edit'][$rowcount]
 193         : null;
 194     $me_fields_null =
 195         isset($_REQUEST['fields_null']['multi_edit'][$rowcount])
 196         ? $_REQUEST['fields_null']['multi_edit'][$rowcount]
 197         : null;
 198     $me_fields_null_prev =
 199         isset($_REQUEST['fields_null_prev']['multi_edit'][$rowcount])
 200         ? $_REQUEST['fields_null_prev']['multi_edit'][$rowcount]
 201         : null;
 202     $me_auto_increment =
 203         isset($_REQUEST['auto_increment']['multi_edit'][$rowcount])
 204         ? $_REQUEST['auto_increment']['multi_edit'][$rowcount]
 205         : null;
 206
 207     foreach ($me_fields as $key => $val) {
 208
 209         require './libraries/tbl_replace_fields.inc.php';
 210
 211         if (empty($me_funcs[$key])) {
 212             $cur_value = $val;
 213         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 214             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 215         } elseif (in_array($me_funcs[$key], $func_no_param)) {
 216             $cur_value = $me_funcs[$key] . '()';
 217         } else {
 218             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 219         }
 220
 221         //  i n s e r t
 222         if ($is_insert) {
 223             // no need to add column into the valuelist
 224             if (strlen($cur_value)) {
 225                 $query_values[] = $cur_value;
 226                 // first inserted row so prepare the list of fields
 227                 if (empty($value_sets)) {
 228                     $query_fields[] = PMA_backquote($key);
 229                 }
 230             }
 231
 232         //  u p d a t e
 233         } elseif (!empty($me_fields_null_prev[$key])
 234          && !isset($me_fields_null[$key])) {
 235             // field had the null checkbox before the update
 236             // field no longer has the null checkbox
 237             $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 238         } elseif (empty($me_funcs[$key])
 239          && isset($me_fields_prev[$key])
 240          && ("'" . PMA_sqlAddslashes($me_fields_prev[$key]) . "'" == $val)) {
 241             // No change for this column and no MySQL function is used -> next column
 242             continue;
 243         } elseif (! empty($val)) {
 244             // avoid setting a field to NULL when it's already NULL
 245             // (field had the null checkbox before the update
 246             //  field still has the null checkbox)
 247             if (!(! empty($me_fields_null_prev[$key])
 248              && isset($me_fields_null[$key]))) {
 249                 $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 250             }
 251         }
 252     } // end foreach ($me_fields as $key => $val)
 253
 254     if (count($query_values) > 0) {
 255         if ($is_insert) {
 256             $value_sets[] = implode(', ', $query_values);
 257         } else {
 258             // build update query
 259             $query[] = 'UPDATE ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 260                     . ' SET ' . implode(', ', $query_values) . ' WHERE ' . $primary_key . ' LIMIT 1';
 261
 262         }
 263     }
 264 } // end foreach ($loop_array as $primary_key)
 265 unset($me_fields_prev, $me_funcs, $me_fields_type, $me_fields_null, $me_fields_null_prev,
 266     $me_auto_increment, $cur_value, $key, $val, $loop_array, $primary_key, $using_key,
 267     $func_no_param);
 268
 269
 270 // Builds the sql query
 271 if ($is_insert && count($value_sets) > 0) {
 272     $query[] = 'INSERT INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 273         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 274
 275     unset($query_fields, $value_sets);
 276
 277     $message .= $GLOBALS['strInsertedRows'] . '&nbsp;';
 278 } elseif (! empty($query)) {
 279     $message .= $GLOBALS['strAffectedRows'] . '&nbsp;';
 280 } else {
 281     // No change -> move back to the calling script
 282     $message .= $GLOBALS['strNoModification'];
 283     $js_to_run = 'functions.js';
 284     $active_page = $goto_include;
 285     require_once './libraries/header.inc.php';
 286     require './' . PMA_securePath($goto_include);
 287     exit;
 288 }
 289 unset($me_fields, $is_insert);
 290
 291 /**
 292  * Executes the sql query and get the result, then move back to the calling
 293  * page
 294  */
 295 if (! empty($GLOBALS['sql_query'])) {
 296     $url_params['sql_query'] = $GLOBALS['sql_query'];
 297     $return_to_sql_query = $GLOBALS['sql_query'];
 298 }
 299 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 300 $total_affected_rows = 0;
 301 $last_message = '';
 302 $warning_message = '';
 303
 304 foreach ($query as $single_query) {
 305     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 306         $result = PMA_DBI_try_query($single_query);
 307     } else {
 308         $result = PMA_DBI_query($single_query);
 309     }
 310
 311     if (! $result) {
 312         $message .= PMA_DBI_getError();
 313     } else {
 314         if (@PMA_DBI_affected_rows()) {
 315             $total_affected_rows += @PMA_DBI_affected_rows();
 316         }
 317
 318         $insert_id = PMA_DBI_insert_id();
 319         if ($insert_id != 0) {
 320             // insert_id is id of FIRST record inserted in one insert, so if we
 321             // inserted multiple rows, we had to increment this
 322
 323             if ($total_affected_rows > 0) {
 324                 $insert_id = $insert_id + $total_affected_rows - 1;
 325             }
 326             $last_message .= '[br]' . $GLOBALS['strInsertedRowId'] . '&nbsp;' . $insert_id;
 327         }
 328         PMA_DBI_free_result($result);
 329     } // end if
 330
 331     foreach (PMA_DBI_get_warnings() as $warning) {
 332         $warning_message .= $warning['Level'] . ': #' . $warning['Code']
 333             . ' ' . $warning['Message'] . '[br]';
 334     }
 335
 336     unset($result);
 337 }
 338 unset($single_query, $query);
 339
 340 $message .= $total_affected_rows . $last_message;
 341
 342 if (! empty($warning_message)) {
 343     /**
 344      * @todo use a <div class="warning"> in PMA_showMessage() for this part of
 345      * the message
 346      */
 347     $message .= '[br]' . $warning_message;
 348 }
 349 unset($warning_message, $total_affected_rows, $last_message);
 350
 351 if (isset($return_to_sql_query)) {
 352     $disp_query = $GLOBALS['sql_query'];
 353     $disp_message = $message;
 354     unset($message);
 355     $GLOBALS['sql_query'] = $return_to_sql_query;
 356 }
 357
 358 // if user asked to "Insert another new row", we need tbl_change.js
 359 // otherwise the calendar icon does not work
 360 if ($goto_include == 'tbl_change.php') {
 361     /**
 362      * @todo if we really need to run many different js at header time,
 363      * $js_to_run would become an array and header.inc.php would iterate
 364      * thru it, instead of the bunch of if/elseif it does now
 365      */
 366     $js_to_run = 'tbl_change.js';
 367 } else {
 368     $js_to_run = 'functions.js';
 369 }
 370 $active_page = $goto_include;
 371 require_once './libraries/header.inc.php';
 372 require './' . PMA_securePath($goto_include);
 373 exit;
 374 ?>