feat(invite): handling of existing org user case when inviting, #2353

pkg/api/org_invite.go

@@ -1,6 +1,8 @@
 package api
 
 import (
+	"fmt"
+
 	"github.com/grafana/grafana/pkg/api/dtos"
 	"github.com/grafana/grafana/pkg/bus"
 	"github.com/grafana/grafana/pkg/events"
@@ -43,6 +45,9 @@ func AddOrgInvite(c *middleware.Context, inviteDto dtos.AddInviteForm) Response
 		// user exists, add org role
 		createOrgUserCmd := m.AddOrgUserCommand{OrgId: c.OrgId, UserId: userQuery.Result.Id, Role: inviteDto.Role}
 		if err := bus.Dispatch(&createOrgUserCmd); err != nil {
+			if err == m.ErrOrgUserAlreadyAdded {
+				return ApiError(412, fmt.Sprintf("User %s is already added to organization", inviteDto.Email), err)
+			}
 			return ApiError(500, "Error while trying to create org user", err)
 		} else {
 			return ApiSuccess("Existing Grafana user added to org " + c.OrgName)
@@ -80,9 +85,10 @@ func AddOrgInvite(c *middleware.Context, inviteDto dtos.AddInviteForm) Response
 		if err := bus.Dispatch(&emailCmd); err != nil {
 			return ApiError(500, "Failed to send email invite", err)
 		}
+		return ApiSuccess(fmt.Sprintf("Sent invite to %s", inviteDto.Email))
 	}
 
-	return ApiSuccess("ok, done!")
+	return ApiSuccess(fmt.Sprintf("Created invite for %s", inviteDto.Email))
 }
 
 func RevokeInvite(c *middleware.Context) Response {

pkg/models/org_user.go

@@ -7,9 +7,10 @@ import (
 
 // Typed errors
 var (
-	ErrInvalidRoleType = errors.New("Invalid role type")
-	ErrLastOrgAdmin    = errors.New("Cannot remove last organization admin")
-	ErrOrgUserNotFound = errors.New("Cannot find the organization user")
+	ErrInvalidRoleType     = errors.New("Invalid role type")
+	ErrLastOrgAdmin        = errors.New("Cannot remove last organization admin")
+	ErrOrgUserNotFound     = errors.New("Cannot find the organization user")
+	ErrOrgUserAlreadyAdded = errors.New("User is already added to organization")
 )
 
 type RoleType string

pkg/services/sqlstore/org_users.go

@@ -19,6 +19,12 @@ func init() {
 
 func AddOrgUser(cmd *m.AddOrgUserCommand) error {
 	return inTransaction(func(sess *xorm.Session) error {
+		// check if user exists
+		if res, err := sess.Query("SELECT 1 from org_user WHERE org_id=? and user_id=?", cmd.OrgId, cmd.UserId); err != nil {
+			return err
+		} else if len(res) == 1 {
+			return m.ErrOrgUserAlreadyAdded
+		}
 
 		entity := m.OrgUser{
 			OrgId:   cmd.OrgId,