metamaps--metamaps/app/policies/synapse_policy.rb

class SynapsePolicy < ApplicationPolicy
  class Scope < Scope
    def resolve
      scope.where('permission IN ("public", "commons") OR user_id = ?', @user.id)
    end
  end

  def create?
    @user.present?
  end

  def show?
    # @record.permission == 'commons' || @record.permission == 'public' || @record.user == @user
    true
  end

  def update?
    # @user.present? && (@record.permission == 'commons' || @record.user == @user)
    true
  end

  def destroy?
    @record.user == @user || @user.admin
  end
end