piazza_core v0.3.0 Piazza.Ecto.EncryptedString

Implements at rest encryption for ecto fields. The encrypted field will be placed into a b64 encoded protobuf message, for ease of migration as additional features like kms integration or key rotation are introduced.

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Functions

Casts the given input to the custom type.

Dumps the given term into an Ecto native type.

Dictates how the type should be treated inside embeds.

Checks if two terms are semantically equal.

Loads the given term into a custom type.

Returns the underlying schema type for the custom type.

Link to this section Functions

Casts the given input to the custom type.

This callback is called on external input and can return any type, as long as the dump/1 function is able to convert the returned value into an Ecto native type. There are two situations where this callback is called:

  1. When casting values by Ecto.Changeset
  2. When passing arguments to Ecto.Query

When returning {:error, keyword()}, the returned keyword list will be preserved in the changeset errors, similar to Changeset.add_error/4. Passing a :message key, will override the default message. It is not possible to override the :type key.

For {:array, CustomType} or {:map, CustomType} the returned keyword list will be erased and the default error will be shown.

Callback implementation for Ecto.Type.cast/1.

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decode_payload(b64str)

Dumps the given term into an Ecto native type.

This callback is called with any term that was stored in the struct and it needs to validate them and convert it to an Ecto native type.

Callback implementation for Ecto.Type.dump/1.

Dictates how the type should be treated inside embeds.

By default, the type is sent as itself, without calling dumping to keep the higher level representation. But it can be set to :dump to it is dumped before encoded.

Callback implementation for Ecto.Type.embed_as/1.

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encode_payload(initv, cipher)

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equal?(term1, term2)

Checks if two terms are semantically equal.

Callback implementation for Ecto.Type.equal?/2.

Loads the given term into a custom type.

This callback is called when loading data from the database and receives an Ecto native type. It can return any type, as long as the dump/1 function is able to convert the returned value back into an Ecto native type.

Callback implementation for Ecto.Type.load/1.

Returns the underlying schema type for the custom type.

For example, if you want to provide your own date structures, the type function should return :date.

Note this function is not required to return Ecto primitive types, the type is only required to be known by the adapter.

Callback implementation for Ecto.Type.type/0.