Preserve empty JSON types #81
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justincampbell
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The existing behavior when specifying `serializer: :json` was to store
and return an empty Hash (`{}`) for null or empty values, including
empty arrays.
This changes the encode logic to store the JSON representation of
any given value. During decode, any valid JSON string can be decoded. We
special case `nil` or `""` (empty string) to return `nil` (instead of
`{}` previously).
This could be a breaking for applications that depend on the empty hash
== nil behavior.
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findkim
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Jun 7, 2019
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Jun 10, 2019
This adds a `:default` option to `vault_attribute`, allowing a default value to be set if the underlying value is `nil`.
```rb
vault_attribute :metadata,
serializer: :json,
default: {}
vault_attribute :access_level,
default: "readonly"
```
This enables a simple fix for applications affected by the breaking change introduced in #81 for `serialize: :json` empty values.
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The existing behavior when specifying
serializer: :jsonwas to store and return an empty Hash ({}) for null or empty values, including empty arrays or nil.This changes the encode logic to store the JSON representation of any given value. During decode, any valid JSON string can be decoded. We special case
nilor""(empty string) to returnnil(instead of{}previously).This will be a breaking change for applications that depend on the empty hash == nil behavior.