Module: IseshimaStore::Base

Defined in:
lib/iseshima_store/base.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 11

def self.included(klass)
  klass.extend SingleForwardable
  klass.extend ClassMethods
  klass.def_delegators :scoping,
    :where,
    :all,
    :first,
    :last,
    :to_a,
    :parent,
    :find,
    :find_by

  klass.instance_eval do
    attr_accessor :id, :created_at, :description, :parent_key
  end
end

Instance Method Details

#assign_entities(hash) ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 96

def assign_entities(hash)
  hash.each { |k, v|
    k = k.to_s
    if respond_to? "#{k}="
      send("#{k}=", v)
    end
  }
  self
end

#destroy ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 92

def destroy
  IseshimaStore::Connection.current.delete(key)
end

#key ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 145

def key
  path = []
  obj = self
  path << [obj.class.to_s, obj.id]

  while obj.parent
    obj = obj.parent
    path << [obj.class.to_s, obj.id]
  end

  IseshimaStore::Connection.current.key(path.reverse)
end

#parent ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 134

def parent
  return @parent if @parent

  if @parent_key
    klass = Object.const_get(@parent_key.kind)
    if klass.include?(IseshimaStore::Base)
      @parent = klass.find(@parent_key.id)
    end
  end
end

#parent=(model) ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 125

def parent=(model)
  if model
    key = model.to_entity.key
    self.parent_key = key
  else
    self.parent_key = ''
  end
end

#save! ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 80

def save!
  entity = to_entity
  if @parent_key == ''
    entity.key.parent = nil
  else
    entity.key.parent = @parent_key
  end
  IseshimaStore::Connection.current.save(entity)
  self.id = entity.key.id
  self
end

#to_entity ⇒ Object 



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# File 'lib/iseshima_store/base.rb', line 106

def to_entity
  entity = Gcloud::Datastore::Entity.new
  entity.key = Gcloud::Datastore::Key.new(self.class.to_s, id)
  unless self.class.properties
    logger = Logger.new(STDOUT)
    logger.warn "You may have to define attr_properties in your model"
  end

  self.class.properties.each do |property|
    property = property.to_s
    value = send(property)
    if value.is_a?(String)
      value = value.force_encoding('UTF-8')
    end
    entity[property] = value
  end
  entity
end