Class: NaranyaEcm::Rest::Associations::HasMany

Inherits:
Association
  • Object
show all
Defined in:
lib/naranya_ecm/rest/associations.rb

Instance Attribute Summary

Attributes inherited from Association

#associated_class, #klass, #name, #options

Instance Method Summary collapse

Methods inherited from Association

#resolve_class_name

Constructor Details

#initialize(klass, name, options = {}) ⇒ HasMany

Returns a new instance of HasMany.



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# File 'lib/naranya_ecm/rest/associations.rb', line 40

def initialize(klass, name, options = {})
  super
  # Define the Getter:
  klass.send :define_method, name do
    value = self.instance_variable_get "@#{name}".to_sym
    if value.nil?
      reflection = self.class.reflect_on_association name
      foreign_key = (self.class.name.demodulize.underscore + '_id').to_sym
      value = self.instance_variable_set(
        "@#{name}".to_sym,
        # reflection.associated_class.where(foreign_key => self.id)
        AssociationRelation.new(reflection.associated_class, reflection.foreign_key, self.id)
      )
    end
    value
  end

  # Define the setter
  klass.send :define_method, "#{name}=".to_sym do |new_value|
    reflection = self.class.reflect_on_association(name)
    relation = AssociationRelation.new(reflection.associated_class, reflection.foreign_key, self.id)

    relation.load new_value unless new_value.nil?

    instance_variable_set "@#{name}".to_sym, relation
  end
end

Instance Method Details

#foreign_key ⇒ Object 



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# File 'lib/naranya_ecm/rest/associations.rb', line 37

def foreign_key
  @foreign_key ||= @options[:foreign_key] || @options.has_key?(:inverse_of) ? "#{@options[:inverse_of]}_id".to_sym : "#{@klass.name.demodulize.underscore}_id".to_sym
end

#macro ⇒ Object 



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# File 'lib/naranya_ecm/rest/associations.rb', line 67

def macro; :has_many; end