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- data Form = Form
- { username :: String
- , password :: String
- , gravatar :: Image}
- validate :: Form -> Maybe a
- oneEach, fileType, minLength :: Validator
- main = do
- user <- validate Form <$> minLength 8 username
- <*> oneEach [character, number, special] password
- <*> fileType JPEG gravatar
- case user of
- (Just u) -> redirect welcomePage
- Nothing -> redirect loginPage
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