Dim

Not sure, I think becomes is already doing most of the job pretty well, but it's certainly incomplete.

Here the links:

• Code
• Documentation

Sorry about the previous formatting issues, here again:

Imagine you have the following scenario:

class Employer < ActiveRecord::Base
end

class Manager < Emplo...

Imagine you have the following scenario:

@@@ class Employer < ActiveRecord::Base end

class Manager < Employer
end

employer = Employer.find(1) # => #
manager = e...

Here an example:

class Employee < ActiveRecord::Base
end
class Manager < Employee
end

manager = Employee.new.becomes(Manager)
manager.class             # => M...

Ok, this is my final go - I promise!

Apologies, please ignore the last post. Here's an even better patch (not sure if it's the best way to validate constraints though).

Here's a working (in this case, failing) patch.

Or just go with [clause].flatten (not to duplicate code for just one single Array() instance)