Fixed bug in importing some publication years with PubMed and also error when loading pub

tripal_pub/includes/importers/PMID.inc

@@ -723,6 +723,7 @@ function tripal_pub_PMID_parse_date ($xml, $element_name) {
         case 'MedlineDate':
           // the medline date is when the date cannot be broken into distinct month day year.
           $xml->read(); 
+          $date['year'] = preg_replace('/^(\d{4}).*$/', '\1', $xml->value);
           $date['medline'] = $xml->value;          
           break;
         default:

tripal_pub/tripal_pub.module

@@ -642,9 +642,11 @@ function chado_pub_load($node) {
   
   // expand the 'text' fields as those aren't included by default
   // and they really shouldn't be so large to cause problems
-  $pub = tripal_core_expand_chado_vars($pub, 'field', 'pub.title');
-  $pub = tripal_core_expand_chado_vars($pub, 'field', 'pub.volumetitle');  
-  $pub = tripal_core_expand_chado_vars($pub, 'field', 'pub.uniquename');;
+  if (is_array($pub)) {
+    $pub = tripal_core_expand_chado_vars($pub, 'field', 'pub.title');
+    $pub = tripal_core_expand_chado_vars($pub, 'field', 'pub.volumetitle');  
+    $pub = tripal_core_expand_chado_vars($pub, 'field', 'pub.uniquename');;
+  }
   
   // set the URL path
   $path = "pub/$pub_id";