This is how you tell ActiveRecord you want to find all the
Person models in your database whose age attributes are greater than or equal to 30.Person.find(:all, :conditions => "age >= 30")Or
Person.find(:all, :conditions => ["age >= ?", 30])DataMapper thinks that's too much typing. Here's the DataMapper approach:
Person.all(:age.gte => 30)Making code more compact is a worthy goal, but who writes a method named
gte in a language which allows you to define >=? Where ActiveRecord is too much typing, DataMapper is too much remembering.You can fork DataMapper and alias
gte to >=. But I wouldn't recommend it.Person.all(:age.>= => 30)Here's how you do it in Ambition:
Person.select {|p| p.age >= 30}












