is it correct to add self like in this case in ruby on rails -

i trying make available repost post in app...i see in youtube video code..

class pin < activerecord::base validates_presence_of :bio belongs_to :user  mount_uploader :image, pictureuploader  def repost     repost_pin = self.dup     repost_pin.save end 

is correct use self here? , possible change this:

def repost     dub end 

in end repost called on instance variable @post(@post = post.find(params[:id]) ) .... maybe misunderstanding here...anyone can help?

you can skip self when clear context reading current instance's attribute or calling method.

when writing should more careful this:

def write   test = 'test' end 

will create local variable test if there attribute same name. alternatively, this:

def write   self.test = 'test' end 

will assign value current instance's attribute named test.

in example skip self since dup method of object , therefore available in current context valid identifier:

def repost     repost_pin = dup     repost_pin.save end 

that said, not error explicitly use self e.g., mark intent use object's attribute or method. ruby style guide not recommend though.