Module: MongoMapper::EmbeddedDocument::InstanceMethods

Defined in:
lib/mongo_mapper/embedded_document.rb

Instance Method Summary collapse

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 281

def ==(other)
  other.is_a?(self.class) && _id == other._id
end

#[](name) ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 272

def [](name)
  read_attribute(name)
end

#[]=(name, value) ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 276

def []=(name, value)
  ensure_key_exists(name)
  write_attribute(name, value)
end

#attributes ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 229

def attributes
  attrs = HashWithIndifferentAccess.new
  
  embedded_keys.each do |key|
    attrs[key.name] = read_attribute(key.name).try(:attributes)
  end
  
  non_embedded_keys.each do |key|
    attrs[key.name] = read_attribute(key.name)
  end
  
  embedded_associations.each do |association|
    documents = instance_variable_get(association.ivar)
    next if documents.nil?
    attrs[association.name] = documents.collect { |doc| doc.attributes }
  end
  
  attrs
end

#attributes=(attrs) ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 216

def attributes=(attrs)
  return if attrs.blank?
  attrs.each_pair do |name, value|
    writer_method = "#{name}="

    if respond_to?(writer_method)
      self.send(writer_method, value)
    else
      self[name.to_s] = value
    end
  end
end

#clone ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 266

def clone
  clone_attributes = self.attributes
  clone_attributes.delete("_id")
  self.class.new(clone_attributes)
end

#id ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 285

def id
  read_attribute(:_id).to_s
end

#id=(value) ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 289

def id=(value)
  if self.class.using_object_id?
    value = MongoMapper.normalize_object_id(value)
  else
    @using_custom_id = true
  end
  
  write_attribute :_id, value
end

#initialize(attrs = {}) ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 177

def initialize(attrs={})
  unless attrs.nil?
    self.class.associations.each_pair do |name, association|
      if collection = attrs.delete(name)
        if association.many? && association.klass.embeddable?
          root_document = attrs[:_root_document] || self
          collection.each do |doc|
            doc[:_root_document] = root_document
          end
        end
        send("#{association.name}=", collection)
      end
    end

    self.attributes = attrs
    
    if respond_to?(:_type=) && self['_type'].blank?
      self._type = self.class.name
    end
  end

  if self.class.embeddable? 
    if read_attribute(:_id).blank?
      write_attribute :_id, Mongo::ObjectID.new
      @new_document = true
    else
      @new_document = false
    end
  end
end

#inspect ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 303

def inspect
  attributes_as_nice_string = key_names.collect do |name|
    "#{name}: #{read_attribute(name).inspect}"
  end.join(", ")
  "#<#{self.class} #{attributes_as_nice_string}>"
end

#logger ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 173

def logger
  self.class.logger
end

#new? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongo_mapper/embedded_document.rb', line 208

def new?
  !!@new_document
end

#save ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 310

def save
  if _root_document
    _root_document.save
  end
end

#save! ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 316

def save!
  if _root_document
    _root_document.save!
  end
end

#to_mongo ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 249

def to_mongo
  attrs = HashWithIndifferentAccess.new
  
  _keys.each_pair do |name, key|
    value = key.set(read_attribute(key.name))
    attrs[name] = value unless value.nil?
  end
  
  embedded_associations.each do |association|
    if documents = instance_variable_get(association.ivar)
      attrs[association.name] = documents.map { |document| document.to_mongo }
    end
  end
  
  attrs
end

#to_param ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 212

def to_param
  id
end

#update_attributes(attrs = {}) ⇒ Object 



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# File 'lib/mongo_mapper/embedded_document.rb', line 322

def update_attributes(attrs={})
  self.attributes = attrs
  save
end

#using_custom_id? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongo_mapper/embedded_document.rb', line 299

def using_custom_id?
  !!@using_custom_id
end