Method: OneTouch::ActiveRecordExtension::ClassMethods#acts_as_favor

Defined in:
lib/one_touch/models/active_record_extension.rb

#acts_as_favor(opt = {}) ⇒ Object

Default is define two relations:

belongs_to :host, :class_name => "User"
belongs_to :favorable, :polymorphic => true

Set acts_as_favor :host_class_name => nil to override default host relation by

belongs_to :host, :polymorphic => true

User can define his own specific relations, but make sure two relations name must be host and favorable

and use acts_as_favor :no_default_relations => false after user defined relations
Ex: belongs_to :host, :class_name => "AnyOne", :primary_key => :any_key
    belongs_to :tag
    acts_as_favor :no_default_relations => true



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# File 'lib/one_touch/models/active_record_extension.rb', line 28

def acts_as_favor(opt={})
  include ::OneTouch::Bridge
  opt.reverse_merge!({:include_host_relation_module => true, :host_class_name => "User", :no_default_relations => false})
  class_attribute :host_relation_type, :favorable_relation_type, :instance_writer => false

  # method_name_of_host_klasses = "host_klasses_for_#{name.underscore}"

  include ActsAsFavor

  unless opt[:no_default_relations]
    if opt[:host_class_name].nil?
      belongs_to :host, :polymorphic => true
      self.host_relation_type = :polymorphic
    else
      belongs_to :host, :class_name => opt[:host_class_name]
      self.host_relation_type = :single
    end
    if opt[:favorable_class_name].nil?
      belongs_to :favorable, :polymorphic => true
      self.favorable_relation_type = :polymorphic
    else
      belongs_to :favorable, :class_name => opt[:favorable_class_name]
      self.favorable_relation_type = :single
    end
  end

  include AfterAsFavor

  # TODO:
  # I should add more files to make here more clear
  # Some methods should be include first
  # And others should be include later
  # The following code should be in another file

  if opt[:include_host_relation_module]
    class_attribute :include_host_relation_module, :instance_writer => false
    self.include_host_relation_module = true
    add_host_relation_map(relation_recorder.port_group[:favorable], :be_favors, :host)
  end

  relation_recorder.port_group[:host].each do |klassname|
    klass = klassname.to_s.constantize
    klass.after_load_acts_as_favor if klass.respond_to? :after_load_acts_as_favor
  end

end