Class: CleanModel::Attribute

Inherits:
Object
  • Object
show all
Defined in:
lib/clean_model/attribute.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options = {}) ⇒ Attribute 



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# File 'lib/clean_model/attribute.rb', line 5

def initialize(name, options={})
  @name = symbolize(name)
  @options = options
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/clean_model/attribute.rb', line 3

def name
  @name
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/clean_model/attribute.rb', line 3

def options
  @options
end

Instance Method Details

#assign_default(model) ⇒ Object 



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# File 'lib/clean_model/attribute.rb', line 36

def assign_default(model)
  default_value = @options[:default].is_a?(Proc) ? @options[:default].call : @options[:default]
  model.send("#{@name}=", default_value) if !default_value.nil? && model.respond_to?("#{@name}=")
end

#transform(value) ⇒ Object 



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# File 'lib/clean_model/attribute.rb', line 14

def transform(value)
  if @options[:transformation]
    @options[:transformation].call(value)
  elsif value.is_a?(Hash) && klass.new.respond_to?(:assign_attributes)
    obj = klass.new
    obj.assign_attributes value
    obj
  elsif value.is_a?(Array) && collection_class.instance_methods.include?(:assign_attributes)
    value.map do |v|
      if v.is_a? collection_class
        v
      else
        obj = collection_class.new
        obj.assign_attributes v
        obj
      end
    end
  else
    value
  end
end

#validate!(value) ⇒ Object

Raises:



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# File 'lib/clean_model/attribute.rb', line 10

def validate!(value)
  raise InvalidTypeAssignment.new(name, value) unless value.is_a? klass
end