CiviCRM Community Forums (archive)

Currently in civicrm.settings.php you need to hardcode things like the civicrm root path and the civicrm conf dir.
You need to change this if you move the civicrm install to a different directory.

Solution:

global $civicrm_root;

if (function_exists('drupal_get_path') && function_exists('conf_path')) {
  $drupal_root = DRUPAL_ROOT;
  $civicrm_module_dir = drupal_get_path('module', 'civicrm');
  if (preg_match('#^(.*/)drupal$#', $civicrm_module_dir, $m)) {
    $civicrm_root = $m[1];
  }
  else {
    throw new Exception('Unable to determine CiviCRM root path.');
  }
  $civicrm_conf_dir = conf_path();
}
elseif (preg_match('#^((.*)/sites/([^/]+)/modules/(|[^/]+/)civicrm)/extern/([^/]+)\.php$#', $_SERVER['SCRIPT_FILENAME'], $m)) {
  $drupal_root = $m[2];
  $civicrm_root = $m[1] . '/';
  if ($m[3] === 'all') {
    $civicrm_conf_dir = $m[2] . '/sites/default';
  }
  else {
    $civicrm_conf_dir = $m[2] . '/sites/' . $m[3];
  }
}
else {
  throw new Exception('Unable to determine CiviCRM root path.');
}

define( 'CIVICRM_TEMPLATE_COMPILEDIR', $civicrm_conf_dir . '/files/civicrm/templates_c/' );
This allows to determine all you need both when running it from Drupal, and when running it from /extern/.

Maybe there is a better place for this than civicrm.settings.php..

Note:
$_SERVER['SCRIPT_FILENAME'] is better than __FILE__, because it allows having civicrm in a symlinked directory.

Maybe I missed something?
Do we need to support things other than the /extern/ scripts?

Pretty risky assumption to use site/defaults for the config, it will fail/destroy silently if multisite.

I prefer the way it fails early now.

The normal solution is to create a settings_location.php file in your civicrm_root

<?php

// the directory name for your 'sites' location in drupal. We use the below location
// along with drupal 'conf_init()' function to figure out where the settings files
// are located. This is primarily used when we hit CiviCRM outside of 'Drupal' (via mail/soap
// etc)
define( 'CIVICRM_CONFDIR', '/var/www/drupal/4.2/sites' );


works fine. Might be worthwhile to modify the error message to point out to this solution