From fd1f3a266a087d557658f87979faece9ddf4161f Mon Sep 17 00:00:00 2001
From: Samuel Vanhove <samuel@symbiotic.coop>
Date: Wed, 29 Apr 2015 18:38:16 -0400
Subject: [PATCH] CRM-16355 - bgm addon to change CMS locale

---
 CRM/Core/I18n.php               |  7 ++++++-
 CRM/Mailing/BAO/MailingJob.php  |  9 +++++++++
 CRM/Utils/System.php            | 19 ++++++++++++++++++-
 CRM/Utils/System/DrupalBase.php | 23 +++++++++++++++++++++++
 CRM/Utils/System/Joomla.php     |  8 ++++++++
 CRM/Utils/System/WordPress.php  |  8 ++++++++
 6 files changed, 72 insertions(+), 2 deletions(-)

diff --git a/CRM/Core/I18n.php b/CRM/Core/I18n.php
index eb14a52d33..6a4fdd0722 100644
--- a/CRM/Core/I18n.php
+++ b/CRM/Core/I18n.php
@@ -549,9 +549,14 @@ class CRM_Core_I18n {
    *   Language (for example 'en_US', or 'fr_CA').
    *   True if the domain was changed for an extension.
    */
-  public function setLanguage($language) {
+  public function setLocale($language) {
 
     $config = CRM_Core_Config::singleton();
+
+    // Change the language of the CMS as well, for URLs.
+    CRM_Utils_System::setUFLocale($language);
+
+    // change the gettext ressources
     if ($this->_nativegettext) {
       $locale = $language . '.utf8';
       putenv("LANG=$locale");
diff --git a/CRM/Mailing/BAO/MailingJob.php b/CRM/Mailing/BAO/MailingJob.php
index a1a232c16b..81fdcc1928 100644
--- a/CRM/Mailing/BAO/MailingJob.php
+++ b/CRM/Mailing/BAO/MailingJob.php
@@ -544,6 +544,15 @@ VALUES (%1, %2, %3, %4, %5, %6, %7)
       $config = CRM_Core_Config::singleton();
     }
 
+    if ($mailing->language && $mailing->language != 'en_US') {
+      // Since we are called from cron, CiviCRM runs in the default language,
+      // which causes issues for multi-lingual environments.
+      // NB: we do not switch back once the mailing is finished,
+      // assuming that CiviCRM stops running after the mail run.
+      $i18n = CRM_Core_I18n::singleton();
+      $i18n->setLocale($mailing->language);
+    }
+
     $job_date = CRM_Utils_Date::isoToMysql($this->scheduled_date);
     $fields = array();
 
diff --git a/CRM/Utils/System.php b/CRM/Utils/System.php
index c9bcbab49a..1a4a2ddd3a 100644
--- a/CRM/Utils/System.php
+++ b/CRM/Utils/System.php
@@ -1331,7 +1331,7 @@ class CRM_Utils_System {
   }
 
   /**
-   * Get the locale set in the hosting CMS.
+   * Get the locale of the hosting CMS.
    *
    * @return string
    *   The used locale or null for none.
@@ -1341,6 +1341,23 @@ class CRM_Utils_System {
     return $config->userSystem->getUFLocale();
   }
 
+  /**
+   * Set the locale of the hosting CMS.
+   *
+   * For example, a mailing will want to change the CMS language so that
+   * URLs are in the correct language (such as the Drupal language prefix).
+   *
+   * @param String $civicrm_language
+   *   An array of parameters (see CRM_Utils_System::docURL2 method for names)
+   *
+   * @return bool
+   *   Returns whether the locale was successfully changed.
+   */
+  public static function setUFLocale($civicrm_language) {
+    $config = CRM_Core_Config::singleton();
+    return $config->userSystem->setUFLocale($civicrm_language);
+  }
+
   /**
    * Execute external or internal URLs and return server response.
    *
diff --git a/CRM/Utils/System/DrupalBase.php b/CRM/Utils/System/DrupalBase.php
index aeab9544e2..56cf330f94 100644
--- a/CRM/Utils/System/DrupalBase.php
+++ b/CRM/Utils/System/DrupalBase.php
@@ -425,6 +425,29 @@ abstract class CRM_Utils_System_DrupalBase extends CRM_Utils_System_Base {
     return CRM_Core_I18n_PseudoConstant::longForShort(substr($language->language, 0, 2));
   }
 
+  /**
+   * @inheritDoc
+   */
+  public function setUFLocale($civicrm_language) {
+    global $language;
+
+    $langcode = substr($civicrm_language, 0, 2);
+    $languages = language_list();
+
+    if (isset($languages[$langcode])) {
+      $language = $languages[$langcode];
+
+      // Config must be re-initialized to reset the base URL
+      // otherwise links will have the wrong language prefix/domain.
+      $config = CRM_Core_Config::singleton();
+      $config->free();
+
+      return TRUE;
+    }
+
+    return FALSE;
+  }
+
   /**
    * Perform any post login activities required by the UF -
    * e.g. for drupal: records a watchdog message about the new session, saves the login timestamp,
diff --git a/CRM/Utils/System/Joomla.php b/CRM/Utils/System/Joomla.php
index 018fc51a0d..03ca3fe485 100644
--- a/CRM/Utils/System/Joomla.php
+++ b/CRM/Utils/System/Joomla.php
@@ -462,6 +462,14 @@ class CRM_Utils_System_Joomla extends CRM_Utils_System_Base {
     return NULL;
   }
 
+  /**
+   * @inheritDoc
+   */
+  public function setUFLocale($civicrm_language) {
+    // TODO
+    return TRUE;
+  }
+
   /**
    * @inheritDoc
    */
diff --git a/CRM/Utils/System/WordPress.php b/CRM/Utils/System/WordPress.php
index a1d4110f7e..56e57e6fbe 100644
--- a/CRM/Utils/System/WordPress.php
+++ b/CRM/Utils/System/WordPress.php
@@ -320,6 +320,14 @@ class CRM_Utils_System_WordPress extends CRM_Utils_System_Base {
     }
   }
 
+  /**
+   * @inheritDoc
+   */
+  public function setUFLocale($civicrm_language) {
+    // TODO (probably not possible with WPML?)
+    return TRUE;
+  }
+
   /**
    * Load wordpress bootstrap.
    *
-- 
2.25.1