Fixed minor issue where an empty query could continue to persist.

git-svn-id: file:///svn-source/pmgr/branches/ledger_transactions_20090605/site@116 97e9348a-65ac-dc4b-aefc-98561f571b83

views/elements/jqGrid.ctp

@@ -184,6 +184,16 @@ function gridRestore() {
 function gridFilter(id) {
   var field = jQuery("#"+id).attr('name');
   var value = jQuery("#"+id).val();
+
+  // Make sure we're not issuing blank queries.
+  // It will work without observable effect, but
+  // it will result in slower queries.  Just
+  // clear out all filter terms instead.
+  if (value == '') {
+    gridRestore();
+    return;
+  }
+
 /*   $('#debug').append("RELOAD: field:"+field+"; value:"+value+"<BR>"); */
   jQuery('#<?php echo $gridId; ?>').setPostDataItem('filt', true);
   jQuery('#<?php echo $gridId; ?>').setPostDataItem('filtField', field);