CRM-13591 : fixed condition check for display value returning function for...

CRM-13591 : fixed condition check for display value returning function for custom fields (i.e used for returning appropriate val for Yes/No fields)

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* CRM-13591: Yes / No fields are not properly displayed in profile view
  http://issues.civicrm.org/jira/browse/CRM-13591

CRM/Core/BAO/CustomField.php

@@ -1180,7 +1180,7 @@ class CRM_Core_BAO_CustomField extends CRM_Core_DAO_CustomField {
           if ($value) {
             $display = ts('Yes');
           }
-          elseif ($value === '0') {
+          elseif ((string)$value === '0') {
             $display = ts('No');
           }
         }
@@ -1345,7 +1345,6 @@ class CRM_Core_BAO_CustomField extends CRM_Core_DAO_CustomField {
           $display = $value;
         }
     }
-
     return $display ? $display : $value;
   }
 

CRM/Event/BAO/Event.php

@@ -1538,7 +1538,10 @@ WHERE  id = $cfID
                 if ($dao->data_type == 'Int' ||
                   $dao->data_type == 'Boolean'
                 ) {
-                  $customVal = (int )($params[$name]);
+                  $v = $params[$name];
+                  if (!CRM_Utils_System::isNull($v)) {
+                    $customVal = (int)$v;
+                  }
                 }
                 elseif ($dao->data_type == 'Float') {
                   $customVal = (float )($params[$name]);