[Sommaire] [Imprimer]

   1  <?php
   2  // $Id: install.mysql.inc,v 1.4 2006/12/27 13:02:34 drumm Exp $
   3  
   4  // MySQL specific install functions
   5  
   6  /**
   7   * Check if MySQL is available.
   8   *
   9   * @return
  10   *  TRUE/FALSE
  11   */
  12  function mysql_is_available() {
  13    return function_exists('mysql_connect');
  14  }
  15  
  16  /**
  17   * Check if we can connect to MySQL.
  18   *
  19   * @return
  20   *  TRUE/FALSE
  21   */
  22  function drupal_test_mysql($url, &$success) {
  23    if (!mysql_is_available()) {
  24      drupal_set_message(st('PHP MySQL support not enabled.'), 'error');
  25      return FALSE;
  26    }
  27  
  28    $url = parse_url($url);
  29  
  30    // Decode url-encoded information in the db connection string.
  31    $url['user'] = urldecode($url['user']);
  32    $url['pass'] = urldecode($url['pass']);
  33    $url['host'] = urldecode($url['host']);
  34    $url['path'] = urldecode($url['path']);
  35  
  36    // Allow for non-standard MySQL port.
  37    if (isset($url['port'])) {
  38       $url['host'] = $url['host'] .':'. $url['port'];
  39    }
  40  
  41    // Test connecting to the database.
  42    $connection = @mysql_connect($url['host'], $url['user'], $url['pass'], TRUE, 2);
  43    if (!$connection) {
  44      drupal_set_message(st('Failure to connect to your MySQL database server. MySQL reports the following message: %error.<ul><li>Are you sure you have the correct username and password?</li><li>Are you sure that you have typed the correct database hostname?</li><li>Are you sure that the database server is running?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.', array('%error' => mysql_error())), 'error');
  45      return FALSE;
  46    }
  47  
  48    // Test selecting the database.
  49    if (!mysql_select_db(substr($url['path'], 1))) {
  50      drupal_set_message(st('We were able to connect to the MySQL database server (which means your username and password are valid) but not able to select your database. MySQL reports the following message: %error.<ul><li>Are you sure you have the correct database name?</li><li>Are you sure the database exists?</li><li>Are you sure the username has permission to access the database?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.', array('%error' => mysql_error())), 'error');
  51      return FALSE;
  52    }
  53  
  54    $success = array('CONNECT');
  55  
  56    // Test CREATE.
  57    $query = 'CREATE TABLE drupal_install_test (id int NULL)';
  58    $result = mysql_query($query);
  59    if ($error = mysql_error()) {
  60      drupal_set_message(st('We were unable to create a test table on your MySQL database server with the command %query. MySQL reports the following message: %error.<ul><li>Are you sure the configured username has the necessary MySQL permissions to create tables in the database?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.', array('%query' => $query, '%error' => $error)), 'error');
  61      return FALSE;
  62    }
  63    $err = FALSE;
  64    $success[] = 'SELECT';
  65    $success[] = 'CREATE';
  66  
  67    // Test INSERT.
  68    $query = 'INSERT INTO drupal_install_test (id) VALUES (1)';
  69    $result = mysql_query($query);
  70    if ($error = mysql_error()) {
  71      drupal_set_message(st('We were unable to insert a value into a test table on your MySQL database server. We tried inserting a value with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
  72      $err = TRUE;
  73    }
  74    else {
  75      $success[] = 'INSERT';
  76    }
  77  
  78    // Test UPDATE.
  79    $query = 'UPDATE drupal_install_test SET id = 2';
  80    $result = mysql_query($query);
  81    if ($error = mysql_error()) {
  82      drupal_set_message(st('We were unable to update a value in a test table on your MySQL database server. We tried updating a value with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
  83      $err = TRUE;
  84    }
  85    else {
  86      $success[] = 'UPDATE';
  87    }
  88  
  89    // Test LOCK.
  90    $query = 'LOCK TABLES drupal_install_test WRITE';
  91    $result = mysql_query($query);
  92    if ($error = mysql_error()) {
  93      drupal_set_message(st('We were unable to lock a test table on your MySQL database server. We tried locking a table with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
  94      $err = TRUE;
  95    }
  96    else {
  97      $success[] = 'LOCK';
  98    }
  99  
 100    // Test UNLOCK.
 101    $query = 'UNLOCK TABLES';
 102    $result = mysql_query($query);
 103    if ($error = mysql_error()) {
 104      drupal_set_message(st('We were unable to unlock a test table on your MySQL database server. We tried unlocking a table with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
 105      $err = TRUE;
 106    }
 107    else {
 108      $success[] = 'UNLOCK';
 109    }
 110  
 111    // Test DELETE.
 112    $query = 'DELETE FROM drupal_install_test';
 113    $result = mysql_query($query);
 114    if ($error = mysql_error()) {
 115      drupal_set_message(st('We were unable to delete a value from a test table on your MySQL database server. We tried deleting a value with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
 116      $err = TRUE;
 117    }
 118    else {
 119      $success[] = 'DELETE';
 120    }
 121  
 122    // Test DROP.
 123    $query = 'DROP TABLE drupal_install_test';
 124    $result = mysql_query($query);
 125    if ($error = mysql_error()) {
 126      drupal_set_message(st('We were unable to drop a test table from your MySQL database server. We tried dropping a table with the command %query and MySQL reported the following error %error.', array('%query' => $query, '%error' => $error)), 'error');
 127      $err = TRUE;
 128    }
 129    else {
 130      $success[] = 'DROP';
 131    }
 132  
 133    if ($err) {
 134      return FALSE;
 135    }
 136  
 137    mysql_close($connection);
 138    return TRUE;
 139  }
 140  
 141  ?>