Add support for event with multiple causes

src/zm_event.cpp

@@ -210,6 +210,16 @@ void Event::createNotes( std::string &notes )
     }
 }
 
+void Event::AddCause( const std::string new_cause )
+{
+    if ( cause.find( new_cause )  == std::string::npos )
+    {
+        if ( cause.length() )
+            cause += ", ";
+        cause += new_cause;
+    }
+}
+
 int Event::sd = -1;
 
 bool Event::OpenFrameSocket( int monitor_id )

src/zm_event.h

@@ -132,6 +132,7 @@ public:
 
 	void AddFrames( int n_frames, Image **images, struct timeval **timestamps );
 	void AddFrame( Image *image, struct timeval timestamp, int score=0, Image *alarm_frame=NULL );
+	void AddCause( const std::string new_cause );
 
 private:
 	void AddFramesInternal( int n_frames, int start_frame, Image **images, struct timeval **timestamps );