libraries/parse_analyze.lib.php

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