Find classes available in the module

Question

I have a module MyModule . I dynamically load classes into it. How can I get a list of classes defined in its namespace?

Example:

 def load_plugins Dir.glob(File.dirname(__FILE__) + '/plugins/*.rb') do |f| MyModule.class_eval File.read(f) end # now how can I find the new classes I've loaded into MyModule? end 

I have to say that every f contains something like "class Foo; end".

You can also think of it this way: in Rails, how could I programmatically find all the classes defined in the ActiveRecord module?

Answer 1

Classes are accessed through constants. Classes defined in the module are listed as constants in this module. Therefore, you just need to select the constants related to the classes.

 MyModule.constants.select {|c| MyModule.const_get(c).is_a? Class}