Callbacks before_save does not work for me ruby on rails

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Callbacks before_save does not work for me ruby on rails

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#1 by (0 votes)

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hello the error is that I'm not saving the id as a string in the variable
fullnumid I just want to be saved when they are created, thanks

after_create :guardar
 def guardar
  self.fullnumid = self.id.to_s
end

ruby-on-rails

asked by juan gomez 13.10.2017 в 04:52

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1 answer

Validate that a field in yii 2 does not allow writing special characters like,. / - " Listview and other elements are lost in some versions

score 0 · Answer 1

You need to save the object after assigning the value to fullnumid ; you can do it with save! or with update! :

With save! :

def guardar
  self.fullnumid = id.to_s
  save!
end

With update! :

def guardar
  update!(fullnumid: id.to_s)
end

You may notice the use of save! and update! (with ! ), which is useful so that, in case of failure, an error is thrown (if you remove the ! it also works, but you can not see the error in case the record does not update).