libraries/parse_analyze.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  *
   5  * @version $Id$
   6  */
   7 if (! defined('PHPMYADMIN')) {
   8     exit;
   9 }
  10
  11 /**
  12  *
  13  */
  14 $GLOBALS['unparsed_sql'] = $sql_query;
  15 $parsed_sql = PMA_SQP_parse($sql_query);
  16 $analyzed_sql = PMA_SQP_analyze($parsed_sql);
  17
  18 // lem9: for bug 780516: now that we use case insensitive preg_match
  19 // or flags from the analyser, do not put back the reformatted query
  20 // into $sql_query, to make this kind of query work without
  21 // capitalizing keywords:
  22 //
  23 // CREATE TABLE SG_Persons (
  24 //  id int(10) unsigned NOT NULL auto_increment,
  25 //  first varchar(64) NOT NULL default '',
  26 //  PRIMARY KEY  (`id`)
  27 // )
  28
  29 // check for a real SELECT ... FROM
  30 $is_select = isset($analyzed_sql[0]['queryflags']['select_from']);
  31
  32 // If the query is a Select, extract the db and table names and modify
  33 // $db and $table, to have correct page headers, links and left frame.
  34 // db and table name may be enclosed with backquotes, db is optionnal,
  35 // query may contain aliases.
  36
  37 /**
  38  * @todo if there are more than one table name in the Select:
  39  * - do not extract the first table name
  40  * - do not show a table name in the page header
  41  * - do not display the sub-pages links)
  42  */
  43 if ($is_select) {
  44     $prev_db = $db;
  45     if (isset($analyzed_sql[0]['table_ref'][0]['table_true_name'])) {
  46         $table = $analyzed_sql[0]['table_ref'][0]['table_true_name'];
  47     }
  48     if (isset($analyzed_sql[0]['table_ref'][0]['db'])
  49       && strlen($analyzed_sql[0]['table_ref'][0]['db'])) {
  50         $db    = $analyzed_sql[0]['table_ref'][0]['db'];
  51     } else {
  52         $db = $prev_db;
  53     }
  54     // Nijel: don't change reload, if we already decided to reload in import
  55     if (empty($reload)) {
  56         $reload  = ($db == $prev_db) ? 0 : 1;
  57     }
  58 }
  59 ?>