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Ecto field convert a map to text and text to map [elixir :map -> postgres :text -> elixir :map]
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| # Into ecto migration "add :my_field, :text" | |
| # Into ecto schema "field :my_field, MapToText" | |
| defmodule MapToText do | |
| use Ecto.Type | |
| def type, do: :map | |
| def cast(data) when is_map(data), do: {:ok, data} | |
| def cast(_), do: :error | |
| def load(data) when is_binary(data), do: Jason.decode(data) | |
| def load(_), do: :error | |
| def dump(data) when is_map(data), do: Jason.encode(data) | |
| def dump(_), do: :error | |
| end |
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