add exists? method

[catmando]

Proof of concept below.

class ApplicationRecord < ActiveRecord::Base
  self.abstract_class = true
  def self.exists?(*args)
    HyperMeshExists.run(model: name, args: args)
  end if RUBY_ENGINE == 'opal'
  class HyperMeshExists < Hyperloop::ServerOp
    param acting_user: nil, allow_nils: true
    param :model
    param :args
    # use policy system to insure we have permission to ask this question
    step { Module.const_get(params.model).exists?(*params.args) }
  end
end

[frostmark]

i will take it?

[catmando]

@frostmark you may, please do a PR - need help? Just ask.

[frostmark]

@catmando okay