Added method to add a user to a team

models/team_members_create.go

@@ -2,7 +2,19 @@ package models
 
 // Create implements the create method to assign a user to a team
 func (tm *TeamMember) Create(doer *User) (err error) {
-	// TODO: Check if it exists etc
+	// Check if the team extst
+	_, err = GetTeamByID(tm.TeamID)
+	if err != nil {
+		return
+	}
+
+	// Check if the user exists
+	_, _, err = GetUserByID(tm.UserID)
+	if err != nil {
+		return
+	}
+
+	// Insert the user
 	_, err = x.Insert(tm)
 	return
 }