Module: MongoDoc::Associations

Defined in:
lib/mongo_doc/associations.rb,
lib/mongo_doc/associations/hash_proxy.rb,
lib/mongo_doc/associations/proxy_base.rb,
lib/mongo_doc/associations/document_proxy.rb,
lib/mongo_doc/associations/collection_proxy.rb

Defined Under Namespace

Modules: ProxyBase Classes: CollectionProxy, DocumentProxy, HashProxy

Instance Method Summary collapse

Instance Method Details

#class_from_name(name) ⇒ Object 



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# File 'lib/mongo_doc/associations.rb', line 101

def class_from_name(name)
  type_name_with_module(name.to_s.classify).constantize rescue nil
end

#embed(*args) ⇒ Object Also known as: has_one 



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# File 'lib/mongo_doc/associations.rb', line 9

def embed(*args)
  options = args.extract_options!
  assoc_class = if class_name = options.delete(:class_name)
    self.class_from_name(class_name)
  end

  args.each do |name|
    _associations << name unless _associations.include?(name)

    attr_reader name

    define_method("#{name}=") do |value|
      association = instance_variable_get("@#{name}")
      unless association
        association = Associations::DocumentProxy.new(:path => _selector_path,
                                                      :root => _root || self,
                                                      :assoc_name => name,
                                                      :assoc_class => assoc_class || self.class.class_from_name(name))
        instance_variable_set("@#{name}", association)
      end
      association.document = value
    end

    validates_embedded name, :if => Proc.new { !send(name).nil? }
  end
end

#embed_hash(*args) ⇒ Object Also known as: has_hash 



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# File 'lib/mongo_doc/associations.rb', line 71

def embed_hash(*args)
  options = args.extract_options!
  assoc_class = if class_name = options.delete(:class_name)
    self.class_from_name(class_name)
  end

  args.each do |name|
    _associations << name unless _associations.include?(name)

    define_method("#{name}") do
      association = instance_variable_get("@#{name}")
      unless association
        association = Associations::HashProxy.new(:path => _selector_path,
                                                  :root => _root || self,
                                                  :assoc_name => name,
                                                  :assoc_class => assoc_class || self.class.class_from_name(name))
        instance_variable_set("@#{name}", association)
      end
      association
    end

    validates_embedded name

    define_method("#{name}=") do |hash|
      send("#{name}").replace(hash)
    end
  end
end

#embed_many(*args) ⇒ Object Also known as: has_many 



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# File 'lib/mongo_doc/associations.rb', line 37

def embed_many(*args)
  options = args.extract_options!
  assoc_class = if class_name = options.delete(:class_name)
    self.class_from_name(class_name)
  end

  args.each do |name|
    _associations << name unless _associations.include?(name)

    define_method("#{name}") do
      association = instance_variable_get("@#{name}")
      unless association
        association = Associations::CollectionProxy.new(:path => _selector_path,
                                                        :root => _root || self,
                                                        :assoc_name => name,
                                                        :assoc_class => assoc_class || self.class.class_from_name(name))
        instance_variable_set("@#{name}", association)
      end
      association
    end

    validates_embedded name

    define_method("#{name}=") do |arrayish|
      proxy = send("#{name}")
      proxy.clear
      Array.wrap(arrayish).each do|item|
        proxy << item
      end
    end
  end
end

#type_name_with_module(type_name) ⇒ Object 



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# File 'lib/mongo_doc/associations.rb', line 105

def type_name_with_module(type_name)
  (/^::/ =~ type_name) ? type_name : "#{parent}::#{type_name}"
end