ATLANTA — The Georgia Senate passed state Rep. Allen Peake’s medical-marijuana bill on Tuesday. The bill would allow a form of cannabis oil treatment for eight different medical conditions. The Senate approved just one amendment, which would allow employers to prevent workers from having and using medical marijuana. Peake told the media Tuesday afternoon that he is “overjoyed” and will work next year to allow medical marijuana to be grown in Georgia. The bill now heads back to the House for final approval. The house adjourned early Tuesday afternoon; a vote there is expected Wednesday.