Add support for Ecto changesets

[tiagoengel]

I was thinking on adding some methods to add support for the Ecto changeset api. Would look something like this:

model
    |> cast(params, @required_fields, @optional_fields)
    |> validate_cnpj(:cnpj, message: "Cnpj inválido')

What do you think?

[williamgueiros]

clean and beautiful. go ahead :+1:

[williamgueiros]

more one point, remember create test to this feature .

[williamgueiros]

@tiagoengel What do you thing, change validate_cnpj and validate_cpf to validate_cpfcnpj and using (:cnpj, :cpf) to select the correct validation ?

[tiagoengel]

Maybe internally we could do that, but I prefer the API with the two functions, 'cause a function call like this would be a little bit confusing.

validate_cpfcnpf(:cnpj, :cnpj)

[williamgueiros]

ok no problem. i close the issue.

[williamgueiros]

:+1:

2 functions is good, i don't understend why using atom

validate_cnpj(:cnpj, message: "Cnpj inválido')
validate_cpf(:cpf, message: "Cpf inválido')

instead

validate_cnpj(message: "Cnpj inválido')
validate_cpf(message: "Cpf inválido')

is a Ecto limitation ?

[tiagoengel]

:cnpj/:cpf in this case are field names. For instance, if I have a model definition like this:

defmodule Company do

  schema "companies" do
    field :name, :string
    field :numero_cnpj, :string
  end
end

I would have to call the function this way:

validate_cnpj(:numero_cnpj, message: "Cnpj inválido')

[williamgueiros]

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