Class: ApiResource::Associations::HasManyRemoteObjectProxy

Inherits:
MultiObjectProxy show all
Defined in:
lib/api_resource/associations/has_many_remote_object_proxy.rb

Instance Attribute Summary

Attributes inherited from AssociationProxy

#finder_opts, #klass, #owner, #remote_path

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from MultiObjectProxy

#==, #all, #collection?, #each, #internal_object=, #serializable_hash

Methods inherited from AssociationProxy

#==, #expires_in, #includes, #initialize, #load_resource_definition, #loaded?, #reload, #ttl

Constructor Details

This class inherits a constructor from ApiResource::Associations::AssociationProxy

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class ApiResource::Associations::AssociationProxy

Class Method Details

.define_association_as_attribute(klass, assoc_name, opts = {}) ⇒ Object

defines a method to get the foreign key



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# File 'lib/api_resource/associations/has_many_remote_object_proxy.rb', line 6

def self.define_association_as_attribute(klass, assoc_name, opts = {})
  id_method_name = self.foreign_key_name(assoc_name)

  klass.api_resource_generated_methods.module_eval <<-EOE, __FILE__, __LINE__ + 1

    def #{id_method_name}
      @attributes_cache[:#{id_method_name}] ||= begin
        # check our attributes first, then go to the remote
        @attributes[:#{id_method_name}] || self.#{assoc_name}.collect(
          &:id
        )
      end
    end
  EOE
  super
end

Instance Method Details

#internal_object ⇒ Object 



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# File 'lib/api_resource/associations/has_many_remote_object_proxy.rb', line 32

def internal_object
  # if we don't have a remote path and we do have and id,
  # we set it before we call the internal object
  # this lets us dynamically generate the correct path
  if self.remote_path.blank?
    # first try for a set of ids e.g. /objects.json?ids[]=1
    associated_ids = self.owner.read_attribute(
      self.association_id_method
    )
    if associated_ids.is_a?(Array) && associated_ids.present?
      self.remote_path = self.klass.collection_path(
        :ids => associated_ids
      )
    # next try for a foreign key e.g. /objects.json?owner_id=1
    elsif self.owner.try(:id).to_i > 0
      self.remote_path = self.klass.collection_path(
        self.owner.class.to_s.foreign_key => self.owner.id
      )
    end
  end
  super
end