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 /**
 132  * Prepares the update/insert of a row
 133  */
 134 if (isset($_REQUEST['primary_key'])) {
 135     // we were editing something => use primary key
 136     $loop_array = (is_array($_REQUEST['primary_key']) ? $_REQUEST['primary_key'] : array($_REQUEST['primary_key']));
 137     $using_key  = true;
 138     $is_insert  = ($_REQUEST['submit_type'] == $GLOBALS['strInsertAsNewRow']);
 139 } else {
 140     // new row => use indexes
 141     $loop_array = array();
 142     foreach ($_REQUEST['fields']['multi_edit'] as $key => $dummy) {
 143         $loop_array[] = $key;
 144     }
 145     $using_key  = false;
 146     $is_insert  = true;
 147 }
 148
 149 $query = array();
 150 $message = '';
 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     $me_fields_prev =
 180         isset($_REQUEST['fields_prev']['multi_edit'][$rowcount])
 181         ? $_REQUEST['fields_prev']['multi_edit'][$rowcount]
 182         : null;
 183     $me_funcs =
 184         isset($_REQUEST['funcs']['multi_edit'][$rowcount])
 185         ? $_REQUEST['funcs']['multi_edit'][$rowcount]
 186         : null;
 187     $me_fields_type =
 188         isset($_REQUEST['fields_type']['multi_edit'][$rowcount])
 189         ? $_REQUEST['fields_type']['multi_edit'][$rowcount]
 190         : null;
 191     $me_fields_null =
 192         isset($_REQUEST['fields_null']['multi_edit'][$rowcount])
 193         ? $_REQUEST['fields_null']['multi_edit'][$rowcount]
 194         : null;
 195     $me_fields_null_prev =
 196         isset($_REQUEST['fields_null_prev']['multi_edit'][$rowcount])
 197         ? $_REQUEST['fields_null_prev']['multi_edit'][$rowcount]
 198         : null;
 199     $me_auto_increment =
 200         isset($_REQUEST['auto_increment']['multi_edit'][$rowcount])
 201         ? $_REQUEST['auto_increment']['multi_edit'][$rowcount]
 202         : null;
 203
 204     foreach ($me_fields as $key => $val) {
 205
 206         require './libraries/tbl_replace_fields.inc.php';
 207
 208         if (empty($me_funcs[$key])) {
 209             $cur_value = $val;
 210         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 211             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 212         } elseif (in_array($me_funcs[$key], $func_no_param)) {
 213             $cur_value = $me_funcs[$key] . '()';
 214         } else {
 215             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 216         }
 217
 218         //  i n s e r t
 219         if ($is_insert) {
 220             // no need to add column into the valuelist
 221             if (strlen($cur_value)) {
 222                 $query_values[] = $cur_value;
 223                 // first inserted row so prepare the list of fields
 224                 if (empty($value_sets)) {
 225                     $query_fields[] = PMA_backquote($key);
 226                 }
 227             }
 228
 229         //  u p d a t e
 230         } elseif (!empty($me_fields_null_prev[$key])
 231          && !isset($me_fields_null[$key])) {
 232             // field had the null checkbox before the update
 233             // field no longer has the null checkbox
 234             $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 235         } elseif (empty($me_funcs[$key])
 236          && isset($me_fields_prev[$key])
 237          && ("'" . PMA_sqlAddslashes($me_fields_prev[$key]) . "'" == $val)) {
 238             // No change for this column and no MySQL function is used -> next column
 239             continue;
 240         } elseif (! empty($val)) {
 241             // avoid setting a field to NULL when it's already NULL
 242             // (field had the null checkbox before the update
 243             //  field still has the null checkbox)
 244             if (!(! empty($me_fields_null_prev[$key])
 245              && isset($me_fields_null[$key]))) {
 246                 $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 247             }
 248         }
 249     } // end foreach ($me_fields as $key => $val)
 250
 251     if (count($query_values) > 0) {
 252         if ($is_insert) {
 253             $value_sets[] = implode(', ', $query_values);
 254         } else {
 255             // build update query
 256             $query[] = 'UPDATE ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 257                     . ' SET ' . implode(', ', $query_values) . ' WHERE ' . $primary_key . ' LIMIT 1';
 258
 259         }
 260     }
 261 } // end foreach ($loop_array as $primary_key)
 262 unset($me_fields_prev, $me_funcs, $me_fields_type, $me_fields_null, $me_fields_null_prev,
 263     $me_auto_increment, $cur_value, $key, $val, $loop_array, $primary_key, $using_key,
 264     $func_no_param);
 265
 266
 267 // Builds the sql query
 268 if ($is_insert && count($value_sets) > 0) {
 269     $query[] = 'INSERT INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 270         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 271
 272     unset($query_fields, $value_sets);
 273
 274     $message .= $GLOBALS['strInsertedRows'] . '&nbsp;';
 275 } elseif (! empty($query)) {
 276     $message .= $GLOBALS['strAffectedRows'] . '&nbsp;';
 277 } else {
 278     // No change -> move back to the calling script
 279     $message .= $GLOBALS['strNoModification'];
 280     $js_to_run = 'functions.js';
 281     $active_page = $goto_include;
 282     require_once './libraries/header.inc.php';
 283     require './' . PMA_securePath($goto_include);
 284     exit;
 285 }
 286 unset($me_fields, $is_insert);
 287
 288 /**
 289  * Executes the sql query and get the result, then move back to the calling
 290  * page
 291  */
 292 if (! empty($GLOBALS['sql_query'])) {
 293     $url_params['sql_query'] = $GLOBALS['sql_query'];
 294     $return_to_sql_query = $GLOBALS['sql_query'];
 295 }
 296 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 297 $total_affected_rows = 0;
 298 $last_message = '';
 299 $warning_message = '';
 300
 301 foreach ($query as $single_query) {
 302     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 303         $result = PMA_DBI_try_query($single_query);
 304     } else {
 305         $result = PMA_DBI_query($single_query);
 306     }
 307
 308     if (! $result) {
 309         $message .= PMA_DBI_getError();
 310     } else {
 311         if (@PMA_DBI_affected_rows()) {
 312             $total_affected_rows += @PMA_DBI_affected_rows();
 313         }
 314
 315         $insert_id = PMA_DBI_insert_id();
 316         if ($insert_id != 0) {
 317             // insert_id is id of FIRST record inserted in one insert, so if we
 318             // inserted multiple rows, we had to increment this
 319
 320             if ($total_affected_rows > 0) {
 321                 $insert_id = $insert_id + $total_affected_rows - 1;
 322             }
 323             $last_message .= '[br]' . $GLOBALS['strInsertedRowId'] . '&nbsp;' . $insert_id;
 324         }
 325         PMA_DBI_free_result($result);
 326     } // end if
 327
 328     foreach (PMA_DBI_get_warnings() as $warning) {
 329         $warning_message .= $warning['Level'] . ': #' . $warning['Code']
 330             . ' ' . $warning['Message'] . '[br]';
 331     }
 332
 333     unset($result);
 334 }
 335 unset($single_query, $query);
 336
 337 $message .= $total_affected_rows . $last_message;
 338
 339 if (! empty($warning_message)) {
 340     /**
 341      * @todo use a <div class="warning"> in PMA_showMessage() for this part of
 342      * the message
 343      */
 344     $message .= '[br]' . $warning_message;
 345 }
 346 unset($warning_message, $total_affected_rows, $last_message);
 347
 348 if (isset($return_to_sql_query)) {
 349     $disp_query = $GLOBALS['sql_query'];
 350     $disp_message = $message;
 351     unset($message);
 352     $GLOBALS['sql_query'] = $return_to_sql_query;
 353 }
 354
 355 // if user asked to "Insert another new row", we need tbl_change.js
 356 // otherwise the calendar icon does not work
 357 if ($goto_include == 'tbl_change.php') {
 358     /**
 359      * @todo if we really need to run many different js at header time,
 360      * $js_to_run would become an array and header.inc.php would iterate
 361      * thru it, instead of the bunch of if/elseif it does now
 362      */
 363     $js_to_run = 'tbl_change.js';
 364 } else {
 365     $js_to_run = 'functions.js';
 366 }
 367 $active_page = $goto_include;
 368 require_once './libraries/header.inc.php';
 369 require './' . PMA_securePath($goto_include);
 370 exit;
 371 ?>