added regex for issn also some code cleanup

includes/form.inc

@@ -115,7 +115,7 @@ function upei_roblib_ill_form_redirect() {
   $standard_message = t("To contact the department about this request, you can send a message to ill@upei.ca or 
 call 902-566-0445.");
   if (isset($_GET['error']) && $_GET['error'] === 'FALSE') {
-    $standard_message =  t("A message including the Request ID has been sent to @email.", array(
+    $standard_message =  t("A message including the Request ID has been sent to @email.  ", array(
       '@email' => $_GET['email'],
     )) . $standard_message;
   }
@@ -344,7 +344,7 @@ function upei_roblib_ill_request_form($form, &$form_state) {
     '#rows' => 2,
     '#title' => t('Source Title'),
     '#default_value' => upei_roblib_ill_get_request_variable('title'),
-    '#description' => 'Journal or Book Title',
+    '#description' => 'Journal or Book Title (Required)',
     '#size' => 50,
     '#required' => FALSE,
   );

includes/utilities.inc

@@ -21,11 +21,11 @@ function upei_roblib_ill_clean_array($values) {
   if (isset($arr['ISBN'])) {
     $arr['ISBN'] = array($arr['ISBN']);
   }
-  if(isset($arr['Genre']) && $arr['Genre'] == 'article' && isset($arr['Author'])) {
+  if (isset($arr['Genre']) && $arr['Genre'] == 'article' && isset($arr['Author'])) {
     // We want ArticleAuthor
     unset($arr['Author']);
   }
-  if(isset($arr['doi'])) {
+  if (isset($arr['doi'])) {
     $arr['AdditionalNumbers'] = $arr['doi'];
   }
   unset($arr['form_build_id']);
@@ -55,6 +55,10 @@ function upei_roblib_ill_get_request_variable($variable) {
     $last_name = isset($_REQUEST['aulast']) ? $_REQUEST['aulast'] : NULL;
     return !empty($last_name) ? $last_name . ',' . $initial : '';
   }
+  if ($variable == 'issn' && !empty($_REQUEST[$variable])) {
+    // ebsco sometimes sends garbage as issns verify this is a valid issn before displaying the value in the form.
+    return preg_match('/^\d{4}-?\d{3}[\dxX]$/', $_REQUEST[$variable]) ? $_REQUEST[$variable] : '';
+  }
   return isset($_REQUEST[$variable]) ? $_REQUEST[$variable] : '';
 }
 
@@ -91,8 +95,8 @@ function upei_roblib_ill_request_info_array($values, $notes) {
 function upei_roblib_format_biblio_info($form_state) {
   $data = upei_roblib_ill_clean_array($form_state['storage']['upei_roblib_ill_request_form']);
   $rows = array();
-  foreach($data as $key => $value) {
-    if($key == 'ISSN' || $key == 'ISBN') {
+  foreach ($data as $key => $value) {
+    if ($key == 'ISSN' || $key == 'ISBN') {
       $value = reset($value);
     }
     array_push($rows, array($key, $value));