Rewrite a query that MySQL was processing eratically into something that works.

application/modules/requests/models/ApprovalActionModel.php

@@ -180,8 +180,55 @@ class Requests_ApprovalActionModel extends Unl_Model
 			$select->where('r.requestId = ?', $requestId);
 		}
 		$select->order('currentState');
-		$records = $select->query()->fetchAll();
-
+		//$records = $select->query()->fetchAll();
+		
+		if (Unl_Util::isArray($requestId)) {
+            $requestIdSql = $db->quoteInto('  r.requestId IN (?) ', $requestId);
+		} else {
+			$requestIdSql = $db->quoteInto('  r.requestId = ? ', $requestId);
+		}
+		$sql = 'SELECT r.requestId, l.nextAction, currentState '
+		     . 'FROM creqRequests AS r '
+		     . 'INNER JOIN creqRequestStacks AS s '
+		     . '  ON r.stackPointer = s.requestStackId '
+		     . 'INNER JOIN creqApprovalLinks AS l '
+		     . '  ON s.chain = l.chain '
+		     . 'WHERE ( '
+		     . '  s.action = l.currentAction ' 
+		     . ') AND ( '
+		     . '  r.state = l.currentState '
+		     . '  OR ( '
+		     . '    l.currentState IS NULL '
+		     . '  ) '
+		     . ') AND ( '
+		     . $requestIdSql
+		     . ') '
+		
+		     . 'UNION '
+		
+             . 'SELECT r.requestId, l.nextAction, currentState '
+		     . 'FROM creqRequests AS r '
+		     . 'INNER JOIN creqRequestStacks AS s '
+		     . '  ON r.stackPointer = s.requestStackId '
+		     . 'INNER JOIN creqApprovalLinks AS l '
+		     . '  ON s.chain = l.chain '
+		     . 'WHERE ( '
+		     . '  s.action IS NULL '
+		     . '  AND ' 
+		     . '  l.currentAction IS NULL '
+		     . ') AND ( '
+		     . '  r.state = l.currentState '
+		     . '  OR ( '
+		     . '    l.currentState IS NULL '
+		     . '  ) '
+		     . ') AND ( '
+		     . $requestIdSql
+		     . ') '
+		     
+		     . 'ORDER BY `currentState` ASC ';
+
+        $records = $db->query($sql)->fetchAll();
+		     
 		$approvalActionIds = array();
 		$requestActions = array();
 		foreach($records as $record) {