Very nice! We coult try to made a Pr to Rails... Il giorno mercoledì 19 dicembre 2012 02:32:59 UTC+1, Yasuharu Ozaki ha scritto: > > This feature "from" and "to" was interesting, I extracted this to a gem > > https://github.com/YasuOza/activemodel-attribute_changed_specification/ > > I wish this gem makes your happy. > > > On Tue, Dec 18, 2012 at 9:51 PM, Peter Brown <[email protected] <javascript:>> > wrote: > > I believe you can do this already with ActiveModel::Dirty: > > > > def send_mail_to_customer > > UserMailer.send_mail_to_customer if status_change == [0, 1] > > end > > > > > > On Monday, December 17, 2012 9:14:33 AM UTC-5, angelo capilleri wrote: > >> > >> Hi, > >> I'm thinking about a method that responds true or false for the changes > of > >> attributes from a value to another to trace a little bit the status of > an AR > >> object. > >> > >> Ex. > >> class Book < ActiveRecord::Base > >> STATUS_DELIVER = [0,1] > >> before_save :send_mail_to_customer > >> > >> def send_mail_to_customer > >> UserMailer.send_mail_to_customer if self.changes['status'] == [0, > 1] > >> end > >> end > >> > >> It' a simple case but when complexity grows up a method like > >> > >> def send_mail_to_customer > >> UserMailer.send_mail_to_customer if self.status.changes(from: 0, to: > 1) > >> end > >> > >> Maybe is more mantenible and readable. > >> > > -- > > You received this message because you are subscribed to the Google > Groups > > "Ruby on Rails: Core" group. > > To view this discussion on the web visit > > https://groups.google.com/d/msg/rubyonrails-core/-/xAAFpU6U2EoJ. > > > > To post to this group, send email to > > [email protected]<javascript:>. > > > To unsubscribe from this group, send email to > > [email protected] <javascript:>. > > For more options, visit this group at > > http://groups.google.com/group/rubyonrails-core?hl=en. > > > > -- > Yasuharu Ozaki > E-mail : [email protected] <javascript:> >
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