Class: HCast::AttributesCaster

Inherits:
Object
  • Object
show all
Defined in:
lib/hcast/attributes_caster.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes, options) ⇒ AttributesCaster

Returns a new instance of AttributesCaster.



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# File 'lib/hcast/attributes_caster.rb', line 4

def initialize(attributes, options)
  @attributes         = attributes
  @options            = options
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/hcast/attributes_caster.rb', line 2

def attributes
  @attributes
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/hcast/attributes_caster.rb', line 2

def options
  @options
end

Instance Method Details

#cast(input_hash, options = {}) ⇒ Object 



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# File 'lib/hcast/attributes_caster.rb', line 9

def cast(input_hash, options = {})
  casted_hash = {}

  hash_keys = get_keys(input_hash)
  attributes.each do |attribute|
    if hash_keys.include?(attribute.name)
      begin
        casted_value = cast_attribute(attribute, input_hash)
        casted_hash[attribute.name] = casted_value
      rescue HCast::Errors::AttributeError => e
        e.add_namespace(attribute.name)
        raise e
      end
    else
      raise HCast::Errors::MissingAttributeError.new("should be given", attribute.name)if attribute.required?
    end
  end

  if !options[:skip_unexpected_attributes]
    check_unexpected_attributes_not_given!(hash_keys, casted_hash.keys)
  end

  casted_hash
end