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 if (isset($_REQUEST['dontlimitchars'])) {
  66     $url_params['dontlimitchars'] = $_REQUEST['dontlimitchars'];
  67 }
  68 if (isset($_REQUEST['pos'])) {
  69     $url_params['pos'] = (int) $_REQUEST['pos'];
  70 }
  71 if (isset($_REQUEST['session_max_rows'])) {
  72     $url_params['session_max_rows'] = (int) $_REQUEST['session_max_rows'];
  73 }
  74 if (isset($_REQUEST['disp_direction'])) {
  75     $url_params['disp_direction'] = $_REQUEST['disp_direction'];
  76 }
  77 if (isset($_REQUEST['repeat_cells'])) {
  78     $url_params['repeat_cells'] = (int) $_REQUEST['repeat_cells'];
  79 }
  80
  81 $goto_include = false;
  82 if (isset($_REQUEST['after_insert'])
  83  && in_array($_REQUEST['after_insert'], array('new_insert', 'same_insert', 'edit_next'))) {
  84     $url_params['after_insert'] = $_REQUEST['after_insert'];
  85     //$GLOBALS['goto'] = 'tbl_change.php';
  86     $goto_include = 'tbl_change.php';
  87
  88     if (isset($_REQUEST['primary_key'])) {
  89         if ($_REQUEST['after_insert'] == 'same_insert') {
  90             foreach ($_REQUEST['primary_key'] as $pk) {
  91                 $url_params['primary_key'][] = $pk;
  92             }
  93         } elseif ($_REQUEST['after_insert'] == 'edit_next') {
  94             foreach ($_REQUEST['primary_key'] as $pk) {
  95                 $local_query    = 'SELECT * FROM ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
  96                                 . ' WHERE ' . str_replace('` =', '` >', $pk)
  97                                 . ' LIMIT 1;';
  98                 $res            = PMA_DBI_query($local_query);
  99                 $row            = PMA_DBI_fetch_row($res);
 100                 $meta           = PMA_DBI_get_fields_meta($res);
 101                 // must find a unique condition based on unique key,
 102                 // not a combination of all fields
 103                 if ($tmp = PMA_getUniqueCondition($res, count($meta), $meta, $row, true)) {
 104                     $_SESSION['edit_next'] = $tmp;
 105                 }
 106                 unset($tmp);
 107             }
 108         }
 109     }
 110 } elseif (! empty($GLOBALS['goto'])) {
 111     if (! preg_match('@^[a-z_]+\.php$@', $GLOBALS['goto'])) {
 112         // this should NOT happen
 113         //$GLOBALS['goto'] = false;
 114         $goto_include = false;
 115     } else {
 116         $goto_include = $GLOBALS['goto'];
 117     }
 118     if ($GLOBALS['goto'] == 'db_sql.php' && strlen($GLOBALS['table'])) {
 119         $GLOBALS['table'] = '';
 120     }
 121 }
 122
 123 if (! $goto_include) {
 124     if (! strlen($GLOBALS['table'])) {
 125         $goto_include = 'db_sql.php';
 126     } else {
 127         $goto_include = 'tbl_sql.php';
 128     }
 129 }
 130
 131 // Defines the url to return in case of failure of the query
 132 if (isset($_REQUEST['err_url'])) {
 133     $err_url = $_REQUEST['err_url'];
 134 } else {
 135     $err_url = 'tbl_change.php' . PMA_generate_common_url($url_params);
 136 }
 137
 138 // Misc
 139 $seen_binary = false;
 140
 141 /**
 142  * Prepares the update/insert of a row
 143  */
 144 if (isset($_REQUEST['primary_key'])) {
 145     // we were editing something => use primary key
 146     $loop_array = (is_array($_REQUEST['primary_key']) ? $_REQUEST['primary_key'] : array($_REQUEST['primary_key']));
 147     $using_key  = true;
 148     $is_insert  = ($_REQUEST['submit_type'] == $GLOBALS['strInsertAsNewRow']);
 149 } else {
 150     // new row => use indexes
 151     $loop_array = array();
 152     foreach ($_REQUEST['fields']['multi_edit'] as $key => $dummy) {
 153         $loop_array[] = $key;
 154     }
 155     $using_key  = false;
 156     $is_insert  = true;
 157 }
 158
 159 $query = array();
 160 $message = '';
 161 $value_sets = array();
 162 $func_no_param = array(
 163     'NOW',
 164     'CURDATE',
 165     'CURTIME',
 166     'UTC_DATE',
 167     'UTC_TIME',
 168     'UTC_TIMESTAMP',
 169     'UNIX_TIMESTAMP',
 170     'RAND',
 171     'USER',
 172     'LAST_INSERT_ID',
 173 );
 174
 175 foreach ($loop_array as $primary_key) {
 176     // skip fields to be ignored
 177     if (! $using_key && isset($_REQUEST['insert_ignore_' . $primary_key])) {
 178         continue;
 179     }
 180
 181     // Defines the SET part of the sql query
 182     $query_values = array();
 183
 184     // Map multi-edit keys to single-level arrays, dependent on how we got the fields
 185     $me_fields =
 186         isset($_REQUEST['fields']['multi_edit'][$primary_key])
 187         ? $_REQUEST['fields']['multi_edit'][$primary_key]
 188         : array();
 189     $me_fields_prev =
 190         isset($_REQUEST['fields_prev']['multi_edit'][$primary_key])
 191         ? $_REQUEST['fields_prev']['multi_edit'][$primary_key]
 192         : null;
 193     $me_funcs =
 194         isset($_REQUEST['funcs']['multi_edit'][$primary_key])
 195         ? $_REQUEST['funcs']['multi_edit'][$primary_key]
 196         : null;
 197     $me_fields_type =
 198         isset($_REQUEST['fields_type']['multi_edit'][$primary_key])
 199         ? $_REQUEST['fields_type']['multi_edit'][$primary_key]
 200         : null;
 201     $me_fields_null =
 202         isset($_REQUEST['fields_null']['multi_edit'][$primary_key])
 203         ? $_REQUEST['fields_null']['multi_edit'][$primary_key]
 204         : null;
 205     $me_fields_null_prev =
 206         isset($_REQUEST['fields_null_prev']['multi_edit'][$primary_key])
 207         ? $_REQUEST['fields_null_prev']['multi_edit'][$primary_key]
 208         : null;
 209     $me_auto_increment =
 210         isset($_REQUEST['auto_increment']['multi_edit'][$primary_key])
 211         ? $_REQUEST['auto_increment']['multi_edit'][$primary_key]
 212         : null;
 213
 214     foreach ($me_fields as $key => $val) {
 215
 216         require './libraries/tbl_replace_fields.inc.php';
 217
 218         if (empty($me_funcs[$key])) {
 219             $cur_value = $val;
 220         } elseif ('UNIX_TIMESTAMP' === $me_funcs[$key] && $val != "''") {
 221             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 222         } elseif (in_array($me_funcs[$key], $func_no_param)) {
 223             $cur_value = $me_funcs[$key] . '()';
 224         } else {
 225             $cur_value = $me_funcs[$key] . '(' . $val . ')';
 226         }
 227
 228         //  i n s e r t
 229         if ($is_insert) {
 230             // no need to add column into the valuelist
 231             if (strlen($cur_value)) {
 232                 $query_values[] = $cur_value;
 233                 $query_fields[] = PMA_backquote($key);
 234             }
 235
 236         //  u p d a t e
 237         } elseif (!empty($me_fields_null_prev[$key])
 238          && !isset($me_fields_null[$key])) {
 239             // field had the null checkbox before the update
 240             // field no longer has the null checkbox
 241             $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 242         } elseif (empty($me_funcs[$key])
 243          && isset($me_fields_prev[$key])
 244          && ("'" . PMA_sqlAddslashes($me_fields_prev[$key]) . "'" == $val)) {
 245             // No change for this column and no MySQL function is used -> next column
 246             continue;
 247         } elseif (! empty($val)) {
 248             // avoid setting a field to NULL when it's already NULL
 249             // (field had the null checkbox before the update
 250             //  field still has the null checkbox)
 251             if (!(! empty($me_fields_null_prev[$key])
 252              && isset($me_fields_null[$key]))) {
 253                 $query_values[] = PMA_backquote($key) . ' = ' . $cur_value;
 254             }
 255         }
 256     } // end foreach ($me_fields as $key => $val)
 257
 258     if (count($query_values) > 0) {
 259         if ($is_insert) {
 260             $value_sets[] = implode(', ', $query_values);
 261         } else {
 262             // build update query
 263             $query[] = 'UPDATE ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 264                     . ' SET ' . implode(', ', $query_values) . ' WHERE ' . $primary_key . ' LIMIT 1';
 265
 266         }
 267     }
 268 } // end foreach ($loop_array as $primary_key)
 269 unset($me_fields_prev, $me_funcs, $me_fields_type, $me_fields_null, $me_fields_null_prev,
 270     $me_auto_increment, $cur_value, $key, $val, $loop_array, $primary_key, $using_key,
 271     $func_no_param);
 272
 273
 274 // Builds the sql query
 275 if ($is_insert && count($value_sets) > 0) {
 276     $query[] = 'INSERT INTO ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($GLOBALS['table'])
 277         . ' (' . implode(', ', $query_fields) . ') VALUES (' . implode('), (', $value_sets) . ')';
 278
 279     unset($query_fields, $value_sets);
 280
 281     $message .= $GLOBALS['strInsertedRows'] . '&nbsp;';
 282 } elseif (! empty($query)) {
 283     $message .= $GLOBALS['strAffectedRows'] . '&nbsp;';
 284 } else {
 285     // No change -> move back to the calling script
 286     $message .= $GLOBALS['strNoModification'];
 287     $js_to_run = 'functions.js';
 288     $active_page = $goto_include;
 289     require_once './libraries/header.inc.php';
 290     require './' . PMA_securePath($goto_include);
 291     exit;
 292 }
 293 unset($me_fields, $is_insert);
 294
 295 /**
 296  * Executes the sql query and get the result, then move back to the calling
 297  * page
 298  */
 299 if (! empty($GLOBALS['sql_query'])) {
 300     $url_params['sql_query'] = $GLOBALS['sql_query'];
 301     $return_to_sql_query = $GLOBALS['sql_query'];
 302 }
 303 $GLOBALS['sql_query'] = implode('; ', $query) . ';';
 304 $total_affected_rows = 0;
 305 $last_message = '';
 306 $warning_message = '';
 307
 308 foreach ($query as $single_query) {
 309     if ($GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
 310         $result = PMA_DBI_try_query($single_query);
 311     } else {
 312         $result = PMA_DBI_query($single_query);
 313     }
 314     if (isset($GLOBALS['warning'])) {
 315         $warning_message .= $GLOBALS['warning'] . '[br]';
 316     }
 317     if (! $result) {
 318         $message .= PMA_DBI_getError();
 319     } else {
 320         if (@PMA_DBI_affected_rows()) {
 321             $total_affected_rows += @PMA_DBI_affected_rows();
 322         }
 323
 324         $insert_id = PMA_DBI_insert_id();
 325         if ($insert_id != 0) {
 326             // insert_id is id of FIRST record inserted in one insert, so if we
 327             // inserted multiple rows, we had to increment this
 328
 329             if ($total_affected_rows > 0) {
 330                 $insert_id = $insert_id + $total_affected_rows - 1;
 331             }
 332             $last_message .= '[br]' . $GLOBALS['strInsertedRowId'] . '&nbsp;' . $insert_id;
 333         }
 334         PMA_DBI_free_result($result);
 335     } // end if
 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 ?>