Symbol#to_proc is breaking my migrations

[asterite]

Hi,

Your Symbol#to_proc implementation is this:

def to_proc; proc { |obj, *args| p obj; p self; p args; obj.send(self, *args) }; end

However, this breaks one of my migrations.

add_index :address_sources, [:application_id, :address], :unique => true

This basically triggers the method_missing method in Migration, that starts like this:

def method_missing(method, *arguments, &block)
    arg_list = arguments.map(&:inspect) * ', '
    ...
end

arguments in this case is:

[:address_sources, [:application_id, :address], {:unique => true}]

Since your proc has |obj, *args|, for the second argument, which is an array, it seems obj gets to be :application_id and *args gets to be [:address], and thus the inspect method is being called with :address and this explodes.

I checked ActiveSupport's implementation of this, working fine, and it's:

Proc.new { |*args| args.shift.__send__(self, *args) }

Can you change it to that?

Thanks!

[sprsquish]

use a better version of to_proc. closed by 1b3b9ce