From a7f67e01de1626b8cba850c325ccf12806d312c0 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Fri, 4 Aug 2006 06:58:44 +0000
Subject: - Patch #76681 by sammys: PostgreSQL support for install system. 
 Woot! :)

---
 includes/install.pgsql.inc | 134 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 includes/install.pgsql.inc

(limited to 'includes')

diff --git a/includes/install.pgsql.inc b/includes/install.pgsql.inc
new file mode 100644
index 000000000..cc9da3998
--- /dev/null
+++ b/includes/install.pgsql.inc
@@ -0,0 +1,134 @@
+<?php
+// $Id$
+
+// PostgreSQL specific install functions
+
+/**
+ * Check if PostgreSQL is available.
+ *
+ * @return
+ *  TRUE/FALSE
+ */
+function pgsql_is_available() {
+  return function_exists('pg_connect');
+}
+
+/**
+ * Check if we can connect to PostgreSQL.
+ *
+ * @return
+ *  TRUE/FALSE
+ */
+function drupal_test_pgsql($url, &$success) {
+  if (!pgsql_is_available()) {
+    drupal_set_message('PHP PostgreSQL support not enabled.', 'error');
+    return FALSE;
+  }
+
+  $url = parse_url($url);
+
+  // Decode url-encoded information in the db connection string.
+  $url['user'] = urldecode($url['user']);
+  $url['pass'] = urldecode($url['pass']);
+  $url['host'] = urldecode($url['host']);
+  $url['path'] = urldecode($url['path']);
+
+  // Build pgsql connection string and allow for non-standard PostgreSQL port.
+  $conn_string = ' user='. $url['user'] .' dbname='. substr($url['path'], 1) .' password='. $url['pass'] . ' host=' . $url['host'];
+  $conn_string .= isset($url['port']) ? ' port=' . $url['port'] : '';
+
+  // Test connecting to the database.
+  $connection = @pg_connect($conn_string);
+  if (!$connection) {
+    drupal_set_message(st('Failure to connect to your PostgreSQL database server. PostgreSQL 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><li>Are you sure you typed the correct database name?</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' => 'Connection failed. See log file for failure reason')), 'error');
+    return FALSE;
+  }
+
+  $success = array('CONNECT');
+
+  // Test CREATE.
+  $query = 'CREATE TABLE drupal_install_test (id integer NOT NULL)';
+  $result = pg_query($connection, $query);
+  if ($error = pg_result_error($result)) {
+    drupal_set_message(st('We were unable to create a test table on your PostgreSQL database server with the command %query. PostgreSQL reports the following message: %error.<ul><li>Are you sure the configured username has the necessary PostgreSQL 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');
+    return FALSE;
+  }
+  $err = FALSE;
+  $success[] = 'SELECT';
+  $success[] = 'CREATE';
+
+  // Test INSERT.
+  $query = 'INSERT INTO drupal_install_test (id) VALUES (1)';
+  $result = pg_query($connection, $query);
+  if ($error = pg_result_error($result)) {
+    drupal_set_message(st('We were unable to insert a value into a test table on your PostgreSQL database server. We tried inserting a value with the command %query and PostgreSQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
+    $err = TRUE;
+  }
+  else {
+    $success[] = 'INSERT';
+  }
+
+  // Test UPDATE.
+  $query = 'UPDATE drupal_install_test SET id = 2';
+  $result = pg_query($connection, $query);
+  if ($error = pg_result_error($result)) {
+    drupal_set_message(st('We were unable to update a value in a test table on your PostgreSQL database server. We tried updating a value with the command %query and PostgreSQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
+    $err = TRUE;
+  }
+  else {
+    $success[] = 'UPDATE';
+  }
+
+  // Test LOCK.
+  $query = 'BEGIN; LOCK drupal_install_test IN SHARE ROW EXCLUSIVE MODE';
+  $result = pg_query($connection, $query);
+  if ($error = pg_result_error($result)) {
+    drupal_set_message(st('We were unable to lock a test table on your PostgreSQL database server. We tried locking a table with the command %query and PostgreSQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
+    $err = TRUE;
+  }
+  else {
+    $success[] = 'LOCK';
+  }
+
+  // Test UNLOCK, which is done automatically upon transaction end in PostgreSQL
+  $query = 'COMMIT';
+  $result = pg_query($connection, $query);
+  if ($error = pg_result_error()) {
+    drupal_set_message(st('We were unable to unlock a test table on your PostgreSQL database server. We tried unlocking a table with the command %query and PostgreSQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
+    $err = TRUE;
+  }
+  else {
+    $success[] = 'UNLOCK';
+  }
+
+  // Test DELETE.
+  $query = 'DELETE FROM drupal_install_test';
+  $result = pg_query($connection, $query);
+  if ($error = pg_result_error()) {
+    drupal_set_message(st('We were unable to delete a value from a test table on your PostgreSQL database server. We tried deleting a value with the command %query and PostgreSQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
+    $err = TRUE;
+  }
+  else {
+    $success[] = 'DELETE';
+  }
+
+  // Test DROP.
+  $query = 'DROP TABLE drupal_install_test';
+  $result = pg_query($connection, $query);
+  if ($error = pg_result_error()) {
+    drupal_set_message(st('We were unable to drop a test table from your PostgreSQL database server. We tried dropping a table with the command %query and PostgreSQL reported the following error %error.', array('%query' => $query, '%error' => $error)), 'error');
+    $err = TRUE;
+  }
+  else {
+    $success[] = 'DROP';
+  }
+
+  if ($err) {
+    return FALSE;
+  }
+
+  pg_close($connection);
+  return TRUE;
+}
+
+?>
-- 
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