what you're doing there is defining a class method named more_than_fifty? a method declared like that can be called from the class itself, not an instance of it.
So, you end up with: Day.more_than_fifty? instead of: day = Day.new day.more_tan_fifty? to add instance methods to a class, just declare them like this: def method_name # do something end that is, without using self On Thu, Mar 7, 2013 at 9:55 AM, Pierre-Adrien Buisson <pabuis...@gmail.com>wrote: > Hey guys, > > I'm beginning with Sinatra and using DataMapper as my ORM tool of choice. > I've been doing great, playing with this today, but I'm now stuck. I'd like > to add a custom method to one of my models, that would check some values of > an instance, make some comparisons and return a boolean. > > I tried the following : > > class Day > include DataMapper::Resource > > property :id, Serial > property :day_number, Integer > property :status, Integer, :default => 0 > property :date, Date > * > def self.more_than_fifty? > # Just for the sake of the example > rand(1..100) > 50 > end* > end > > But didn't work. I've seen one or two cryptic messages on Stack Overflow > about DataMapper::Model.append_inclusions, but not enough for me to > understand and get it working. > Anyone who could help me around here ? Thanks a lot for your time guys. > > Paddy > > -- > You received this message because you are subscribed to the Google Groups > "DataMapper" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to datamapper+unsubscr...@googlegroups.com. > To post to this group, send email to datamapper@googlegroups.com. > Visit this group at http://groups.google.com/group/datamapper?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "DataMapper" group. To unsubscribe from this group and stop receiving emails from it, send an email to datamapper+unsubscr...@googlegroups.com. To post to this group, send email to datamapper@googlegroups.com. Visit this group at http://groups.google.com/group/datamapper?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
