validates_present :author On Tue, Jun 30, 2009 at 6:34 PM, robs<[email protected]> wrote: > > For example: > > class Person > include DataMapper::Resource > > property :id, Integer, :serial => true > property :first_name, String, :nullable => false > property :last_name, String > > has n :posts > end > > class Post > include DataMapper::Resource > > property :id, Integer, :serial => true > property :title, String, :nullable => false > property :body, Text > > belongs_to :author, :class_name => "Person" > end > > What would be the best way to validate the presence of an author when > a post is saved? I noticed that the documentation says that some > validations are automatically inferred (e.g., if :nullable => false > or :length is specified). Is there any way to include this validation > in the belongs_to method call? If not, what would anyone suggest? > > Thanks! > > > >
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