improvements for dropoimport

apps/calendar/ajax/import/dropimport.php

@@ -23,4 +23,10 @@ $newcalendarname = strip_tags($import->createCalendarName());
 $newid = OC_Calendar_Calendar::addCalendar(OCP\User::getUser(),$newcalendarname,'VEVENT,VTODO,VJOURNAL',null,0,$import->createCalendarColor());
 $import->setCalendarID($newid);
 $import->import();
-OCP\JSON::success(array('newcalendarname'=>$newcalendarname, 'count'=>$import->getCount(), 'newcalendarid'=>$newid, 'eventSource'=>OC_Calendar_Calendar::getEventSourceInfo(OC_Calendar_Calendar::find($newid))));
+$count = $import->getCount();
+if($count == 0){
+	OC_Calendar_Calendar::deleteCalendar($newid);
+	OCP\JSON::error(array('message'=>OC_Calendar_App::$l10n->t('The file contained either no events or all events are already saved in your account')));
+}else{
+	OCP\JSON::success(array('message'=>$count . ' ' . OC_Calendar_App::$l10n->t('events has been saved in the new calendar') . ' ' . $newcalendarname, 'eventSource'=>OC_Calendar_Calendar::getEventSourceInfo(OC_Calendar_Calendar::find($newid))));
+}

apps/calendar/js/calendar.js

@@ -635,12 +635,12 @@ Calendar={
 				$.post(OC.filePath('calendar', 'ajax/import', 'dropimport.php'), {'data':data},function(result) {
 					if(result.status == 'success'){
 						$('#calendar_holder').fullCalendar('addEventSource', result.eventSource);
-						$('#notification').html(result.count + ' Events has been saved in the new calendar ' + result.newcalendarname);
+						$('#notification').html(result.message);
 						$('#notification').slideDown();
 						window.setTimeout(function(){$('#notification').slideUp();}, 5000);
 						return true;
 					}else{
-						$('#notification').html('ownCloud wasn\'t able to import at least one file. File skipped.');
+						$('#notification').html(result.message);
 						$('#notification').slideDown();
 						window.setTimeout(function(){$('#notification').slideUp();}, 5000);
 					}

apps/calendar/lib/import.php

@@ -95,8 +95,12 @@ class OC_Calendar_Import{
 			$object->DTEND->setDateTime($dtend->getDateTime(), $object->DTSTART->getDateType());
 			$object->DTEND->getDateTime()->setTimezone(new DateTimeZone($this->tz));
 			$vcalendar = $this->createVCalendar($object->serialize());
-			OC_Calendar_Object::add($this->id, $vcalendar);
-			$this->count++;
+			$insertid = OC_Calendar_Object::add($this->id, $vcalendar);
+			if($this->isDuplicate($insertid)){
+				OC_Calendar_Object::delete($insertid);
+			}else{
+				$this->count++;	
+			}
 		}
 		return true;
 	}
@@ -240,10 +244,18 @@ class OC_Calendar_Import{
 	
 	/*
 	 * @brief checks if an event already exists in the user's calendars
+	 * @param integer $insertid id of the new object
 	 * @return boolean
 	 */
-	private function isDuplicate(){
-
+	private function isDuplicate($insertid){
+		$newobject = OC_Calendar_Object::find($insertid);
+		$stmt = OCP\DB::prepare('SELECT COUNT(*) as count FROM *PREFIX*calendar_objects WHERE objecttype=? AND startdate=? AND enddate=? AND repeating=? AND summary=? AND calendardata=?');
+		$result = $stmt->execute(array($newobject['objecttype'],$newobject['startdate'],$newobject['enddate'],$newobject['repeating'],$newobject['summary'],$newobject['calendardata']));
+		$result = $result->fetchRow();
+		if($result['count'] >= 2){
+			return true;
+		}
+		return false;
 	}
 	
 	/*