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zoi
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0.1.0
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) do
coerce = Keyword.get(opts, :coerce, schema.coerce)
cond do
is_boolean(input) ->
{:ok, input}
coerce ->
coerce_boolean(schema, input)
true ->
error(schema)
end
end
defp coerce_boolean(schema, input) do
cond do
input in ["true", "1", "yes", "on", "y", "enabled"] ->
{:ok, true}
input in ["false", "0", "no", "off", "n", "disabled"] ->
{:ok, false}
true ->
error(schema)
end
end
defp error(schema) do
{:error, schema.meta.error || "invalid type: must be a boolean"}
end
end
end