I don't know whether to tell my manager I have a job interview because in the kind of job I'm in, they often offer you it after the interview and then obviously they want to contact your references and last time I changed jobs I didn't tell my manager and then I ended up having to tell the new job that I hadn't told my manager I had a job interview so could they wait to contact her until I told her which was awkward and then I had to rush to go to my manager and say oh by the way I've been for a job interview and I've got the job and can you do my reference please which didn't feel great.
Advice please!