Nested class from a string

Question

I want to call a method on a class in the namespace of Publishers, such as Publishers::Vk, where the nested part is expressed as a string like provider_name = 'Vk'. I did something like that:

send("Publishers::#{provider_name}.new(#{@photo})")

I get an exception:

undefined method `Publishers::Vk.new(#<Photo:0x000000085e5440>)' for #<PhotoPublisher:0x00000008616c98>

How can I implement this functionality?

score 3 · Accepted Answer · answered Feb 16 '14 at 16:16

3

Publishers.const_get(provider_name).new(@photo)

answered Feb 16 '14 at 16:16

Sergio Tulentsev

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Yes, exactly, it's a constant – Sergio Tulentsev Feb 17 '14 at 16:44

Nested class from a string

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