I usually include DataMapper::Resource outside of the class/module eval.
base.send :include, DataMapper::Resourcehttps://github.com/ronin-ruby/ronin/blob/master/lib/ronin/model/model.rb https://github.com/ronin-ruby/ronin/blob/master/lib/ronin/model/has_name.rb On 05/30/2013 10:30 AM, Paul wrote: > Hi, > > I have two models that share some of the same attributes so I wanted > to setup a single table inheritance structure. After doing some > research, I found out that I can use module to achieve the same by > doing the following instead: > > module CommonFields > def self.included base > base.class_eval do > include DataMapper::Resource > > property :type, base::Discriminator > property :enable_feature1, base::Boolean, :default => false > property :enable_feature2, base::Boolean, :default => false > end > end > end > > class A > include CommonFields > > property: title, String > end > > class B > include CommonFields > end > > However, when I do rake db:automigrate I get: > > undefined method `properties' for CommonFields:Module > /usr/local/rvm/gems/ruby-1.9.2-p290/gems/dm-core-1.2.0/lib/dm-core/associations/relationship.rb:252:in > `parent_key' > > Any ideas? > > Thanks, > > Paul > -- > 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. > > -- Blog: http://postmodern.github.com/ GitHub: https://github.com/postmodern Twitter: @postmodern_mod3 PGP: 0xB9515E77
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