keep sure if assigneeIDs == nil -> do nothing

routers/api/v1/repo/issue.go

@@ -344,7 +344,7 @@ func CreateIssue(ctx *context.APIContext, form api.CreateIssueOption) {
 			return
 		}
 
-		// Check if the passed assignees is assignable
+		if assigneeIDs != nil {
 			for _, aID := range assigneeIDs {
 				assignee, err := models.GetUserByID(aID)
 				if err != nil {
@@ -352,6 +352,7 @@ func CreateIssue(ctx *context.APIContext, form api.CreateIssueOption) {
 					return
 				}
 
+				// Check if the passed assignees is assignable
 				valid, err := models.CanBeAssigned(assignee, ctx.Repo.Repository, false)
 				if err != nil {
 					ctx.Error(500, "canBeAssigned", err)
@@ -362,6 +363,7 @@ func CreateIssue(ctx *context.APIContext, form api.CreateIssueOption) {
 					return
 				}
 			}
+		}
 	} else {
 		// setting labels is not allowed if user is not a writer
 		form.Labels = make([]int64, 0)

routers/api/v1/repo/pull.go

@@ -286,7 +286,8 @@ func CreatePullRequest(ctx *context.APIContext, form api.CreatePullRequestOption
 		}
 		return
 	}
-	// Check if the passed assignees is assignable
+
+	if assigneeIDs != nil {
 		for _, aID := range assigneeIDs {
 			assignee, err := models.GetUserByID(aID)
 			if err != nil {
@@ -294,6 +295,7 @@ func CreatePullRequest(ctx *context.APIContext, form api.CreatePullRequestOption
 				return
 			}
 
+			// Check if the passed assignees is assignable
 			valid, err := models.CanBeAssigned(assignee, repo, true)
 			if err != nil {
 				ctx.Error(500, "canBeAssigned", err)
@@ -304,6 +306,7 @@ func CreatePullRequest(ctx *context.APIContext, form api.CreatePullRequestOption
 				return
 			}
 		}
+	}
 
 	if err := pull_service.NewPullRequest(repo, prIssue, labelIDs, []string{}, pr, patch, assigneeIDs); err != nil {
 		if models.IsErrUserDoesNotHaveAccessToRepo(err) {