Class: ActiveRepresenter::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/active_representer/base.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(wrapped) ⇒ Base

Returns a new instance of Base.



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# File 'lib/active_representer/base.rb', line 14

def initialize(wrapped)
  @wrapped = wrapped
  self.class.collection_names.each do |collection_name|
    next if wrapped[collection_name].nil?
    representer = self.class.collections[collection_name]
    collection_value = \
      if representer
        wrapped[collection_name].map { |item| representer.new(item) }
      else
        wrapped[collection_name]
      end
    instance_variable_set("@#{collection_name}", collection_value)
  end
end

Instance Attribute Details

#wrapped ⇒ Object (readonly)

Returns the value of attribute wrapped.



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# File 'lib/active_representer/base.rb', line 9

def wrapped
  @wrapped
end

Class Method Details

.attr_collection(name, **options) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/active_representer/base.rb', line 30

def attr_collection(name, **options)
  unless name.is_a?(Symbol) || name.is_a?(String)
    raise ArgumentError.new("collection's name must be a Symbol or a String")
  end
  representer_name = \
    options[:representer_name] ? options[:representer_name] : guess_representrer_name(name.to_s)
  raise ArgumentError.new("representer_name must be a String") unless representer_name.is_a?(String)
  begin
    representer = representer_name.constantize
    collections[name.to_sym] = representer
  rescue NameError => e
    collections[name.to_sym] = nil
  end
  class_eval do
    attr_reader name.to_sym
  end
end

.collection_names ⇒ Object 



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# File 'lib/active_representer/base.rb', line 48

def collection_names
  collections.keys
end

.guess_representrer_name(name) ⇒ Object 



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# File 'lib/active_representer/base.rb', line 52

def guess_representrer_name(name)
  "#{name.singularize.camelize}Representer"
end