-get scalar result.

2 files changed, 10 insertions, 2 deletions

diff --git a/node/executionnode.cpp b/node/executionnode.cpp
index fadc9fb..588f4f5 100644
--- a/node/executionnode.cpp
+++ b/node/executionnode.cpp
@@ -89,3 +89,9 @@ void ExecutionNode::generateDotTree(QString& s)
     }
 
 }
+qint64 ExecutionNode::getScalarResult()
+{
+    if(m_result == nullptr)
+        return 0;
+    return m_result->getResult(Result::SCALAR).toInt();
+}
diff --git a/node/executionnode.h b/node/executionnode.h
index 6fe8c62..a84bef0 100644
--- a/node/executionnode.h
+++ b/node/executionnode.h
@@ -80,11 +80,13 @@ public:
      */
     virtual ExecutionNode* getCopy() const  = 0;
 
+    virtual qint64 getScalarResult();
+
 protected:
     /**
      * @brief m_nextNode
      */
-    ExecutionNode* m_previousNode;
+    ExecutionNode* m_previousNode= nullptr;
     /**
      * @brief m_result
      */
@@ -92,7 +94,7 @@ protected:
     /**
      * @brief m_nextNode
      */
-    ExecutionNode* m_nextNode;
+    ExecutionNode* m_nextNode = nullptr;
     /**
      * @brief m_errors
      */