Module: Subroutine::Fields

Extended by:
ActiveSupport::Concern
Included in:
Op
Defined in:
lib/subroutine/fields.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#field_provided?(key) ⇒ Boolean

check if a specific field was provided

Returns:

  • (Boolean) 


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# File 'lib/subroutine/fields.rb', line 105

def field_provided?(key)
  return send(:"#{key}_field_provided?") if respond_to?(:"#{key}_field_provided?", true)

  @params.key?(key)
end

#params_with_defaults ⇒ Object 



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# File 'lib/subroutine/fields.rb', line 128

def params_with_defaults
  @defaults.merge(@params)
end

#sanitize_defaults ⇒ Object 



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# File 'lib/subroutine/fields.rb', line 132

def sanitize_defaults
  defaults = {}.with_indifferent_access

  _fields.each_pair do |field, config|
    next if config[:default].nil?

    deflt = config[:default]
    if deflt.respond_to?(:call)
      deflt = deflt.call
    elsif deflt.duplicable? # from active_support
      # Some classes of default values need to be duplicated, or the instance field value will end up referencing
      # the class global default value, and potentially modify it.
      deflt = deflt.deep_dup # from active_support
    end
    defaults[field] = ::Subroutine::TypeCaster.cast(deflt, config)
  end

  defaults
end

#sanitize_params(inputs) ⇒ Object

if you want to use strong parameters or something in your form object you can do so here. by default we just slice the inputs to the defined fields



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# File 'lib/subroutine/fields.rb', line 113

def sanitize_params(inputs)
  out = {}.with_indifferent_access
  _fields.each_pair do |field, config|
    next unless inputs.key?(field)

    begin
      out[field] = ::Subroutine::TypeCaster.cast(inputs[field], config)
    rescue ::Subroutine::TypeCaster::TypeCastError => e
      raise ::Subroutine::TypeCaster::TypeCastError, "Error for field `#{field}`: #{e}"
    end
  end

  out
end

#setup_fields(inputs = {}) ⇒ Object 



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# File 'lib/subroutine/fields.rb', line 98

def setup_fields(inputs = {})
  @original_params = inputs.with_indifferent_access
  @params = sanitize_params(@original_params)
  @defaults = sanitize_defaults
end