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zoi
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Zoi is a schema validation library for Elixir, designed to provide a simple and flexible way to define and validate data.
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lib/zoi/types/boolean.ex
defmodule Zoi.Types.Boolean do
@moduledoc false
use Zoi.Type.Def, fields: [coerce: false]
def new(opts \\ []) do
apply_type(opts)
end
defimpl Zoi.Type do
def parse(_schema, input, _opts) when is_boolean(input) do
{:ok, input}
end
def parse(schema, input, opts) when is_binary(input) do
coerce = Keyword.get(opts, :coerce, schema.coerce)
if coerce and input in ["true", "false"] do
{:ok, input == "true"}
else
error(schema)
end
end
def parse(schema, _input, _opts) do
error(schema)
end
defp error(schema) do
{:error, schema.meta.error || "invalid type: must be a boolean"}
end
end
end