Ruby Metaprogramming: dynamic instance variable names
The method you are looking for is instance_variable_set. So:
hash.each { |name, value| instance_variable_set(name, value) }Or, more briefly,
hash.each &method(:instance_variable_set)If your instance variable names are missing the "@" (as they are in the OP's example), you'll need to add them, so it would be more like:
hash.each { |name, value| instance_variable_set("@#{name}", value) }
h = { :foo => 'bar', :baz => 'qux' }o = Struct.new(*h.keys).new(*h.values)o.baz => "qux" o.foo => "bar"
You make we want to cry :)
In any case, see Object#instance_variable_get and Object#instance_variable_set.
Happy coding.