Rails db fields not updating properly

Question

I'm trying to write get increment/decrement methods working for a fairly simple class and im running into a strange issue. If i call give_point(), points get incremented to 1, then calling it over and over again nothing happens. Then if i all give_dm(), points gets reset to 0 and dms gets set to 1... I can't get it to keep incrementing and they keep resetting each other in my database. Can anyone point me in the right direction? I have no idea what's wrong and I've been staring at this for quite some time now. Thanks for any help ahead of time!

class Post < ActiveRecord::Base
    belongs_to :user
    belongs_to :group
    validates :content, :presence => true
    after_initialize :init

    def init
        self.points = 0
        self.dms = 0
    end


    def give_point()
        self.points += 1
        update(points: self.points)
    end

    def take_point()
        self.point -= 1
        update(points: self.points)
    end

    def give_dm()
        self.dms += 1
        update(dms: self.dms)
    end

    def take_dm()
        self.dms -= 1
        update(dms: self.dms)
    end

end

Answer 1

after_initialize is called every time a record is instantiated... this means both new records but also with any db retrievals.

If you only want to initialize for new records, you may want to change the init method...

def init
  self.points = 0 if new_record?
  self.dms = 0 if new_record?
end