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Adds caveat to allow_empty_value option usage #347

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Adds caveat to allow_empty_value option usage #347

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6 changes: 6 additions & 0 deletions README.md
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Expand Up @@ -328,6 +328,12 @@ You may want to encrypt empty strings or nil so as to not reveal which records a
end
```

**Caveat:** The default encryptor doesn't support this option. Doing so will throw an error:
```
ArgumentError: data must not be empty
```

Make sure that your encryptor supports encryption of empty values when setting this to true.

## ORMs

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