How do you find the namespace/module name programmatically in Ruby on Rails? -

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how find name of namespace or module 'foo' in filter below?

class applicationcontroller < actioncontroller::base   def get_module_name     @module_name = ???   end end   class foo::barcontroller < applicationcontroller   before_filter :get_module_name end

none of these solutions consider constant multiple parent modules. instance:

a::b::c

as of rails 3.2.x can simply:

"a::b::c".deconstantize #=> "a::b"

as of rails 3.1.x can:

constant_name = "a::b::c" constant_name.gsub( "::#{constant_name.demodulize}", '' )

this because #demodulize opposite of #deconstantize:

"a::b::c".demodulize #=> "c"

if need manually, try this:

constant_name = "a::b::c" constant_name.split( '::' )[0,constant_name.split( '::' ).length-1]

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