fixed post relationships

services/migration/migrate-posts.go

@@ -313,14 +313,14 @@ func createPost(postId int, migration MigratePosts, wpTagData []wordpress.TagDat
 
 func updatePostRelationships(postResults []PostResult, migration MigratePosts) {
 	fmt.Println("Updating post relationships")
+	totalPostResults := len(postResults)
 	batchSize := 5
 	postResultWorkInput := make(chan PostResult)
 	doneChannel := make(chan bool)
 	defer close(doneChannel)
 	//Set up a wait group to wait for the input channel to close after execution
 	var wg sync.WaitGroup
-	wg.Add(1)
-	wg.Add(len(postResults))
+	wg.Add(totalPostResults + 1)
 
 	//Launch go routines that will read from the input channel,
 	//maxed out at the batch size
@@ -330,9 +330,13 @@ func updatePostRelationships(postResults []PostResult, migration MigratePosts) {
 				select {
 				case <-doneChannel:
 					return
-				case result := <-postResultWorkInput:
-					updatePostRelationship(result, migration)
-					wg.Done()
+				case result, ok := <-postResultWorkInput:
+					if ok {
+						updatePostRelationship(result, migration)
+						wg.Done()
+					} else {
+						return
+					}
 				}
 			}
 		}()
@@ -342,7 +346,7 @@ func updatePostRelationships(postResults []PostResult, migration MigratePosts) {
 	//as the workers take work from the channel. This will be blocked while
 	//any task is waiting to be picked up from the channel
 	go func() {
-		defer close(postResultWorkInput)
+		//defer close(postResultWorkInput)
 
 		for _, result := range postResults {
 			select {
@@ -351,7 +355,6 @@ func updatePostRelationships(postResults []PostResult, migration MigratePosts) {
 			case postResultWorkInput <- result:
 			}
 		}
-
 		wg.Done()
 	}()