From b561d4b72f50f9b5a7e3c510653283610b5c9097 Mon Sep 17 00:00:00 2001
From: Peter Murray <jester@dltj.org>
Date: Wed, 27 Feb 2013 17:06:39 -0500
Subject: [PATCH] Move XSLTProcessor class check to hook_requirements()

---
 includes/admin.form.inc |  5 -----
 islandora.install       | 19 +++++++++++++++++++
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/includes/admin.form.inc b/includes/admin.form.inc
index 493b9017..5939d55b 100644
--- a/includes/admin.form.inc
+++ b/includes/admin.form.inc
@@ -20,11 +20,6 @@ function islandora_repository_admin(array $form, array &$form_state) {
   module_load_include('inc', 'islandora', 'includes/utilities');
   drupal_add_css(drupal_get_path('module', 'islandora') . '/css/islandora.admin.css');
   
-  if (!class_exists('XSLTProcessor', FALSE)) {
-    $link = l(t('PHP XSL extension'), 'http://us2.php.net/manual/en/book.xsl.php', array('attributes' => array('target'=>'_blank')));
-    drupal_set_message(t('The !xsllink is required. Check your installed PHP extensions and php.ini file.', array('!xsllink' => $link)),'error');
-  }
-
   $form = array();
   if (isset($form_state['values']['islandora_base_url'])) {
     $url = $form_state['values']['islandora_base_url'];
diff --git a/islandora.install b/islandora.install
index 321f6f46..10322ba9 100644
--- a/islandora.install
+++ b/islandora.install
@@ -4,6 +4,25 @@
  * @file
  * This file contains all install related hooks.
  */
+ 
+/**
+ * Implements hook_requirements().
+ */
+function islandora_requirements($phase) {
+  $requirements = array();
+  // Ensure translations don't break at install time
+  $t = get_t();
+
+  if (!class_exists('XSLTProcessor', FALSE)) {
+    $requirements['islandora_xsltprocessor']['title'] = $t('Islandora XSLTProcessor Prerequisite');
+    $requirements['islandora_xsltprocessor']['value'] = $t('Not installed');
+    $link = l($t('PHP XSL extension'), 'http://us2.php.net/manual/en/book.xsl.php', array('attributes' => array('target'=>'_blank')));
+    $requirements['islandora_xsltprocessor']['description'] = $t('The !xsllink is required. Check your installed PHP extensions and php.ini file.', array('!xsllink' => $link)),'error');
+    $requirements['islandora_xsltprocessor']['severity'] = REQUIREMENT_ERROR;
+  }
+  
+  return $requirements;
+}
 
 /**
  * Implements hook_install().