class ProjectPolicy attr_reader :user, :project def initialize(user, project) @user = user || User.new @project = project end class Scope def initialize(user, scope) @user = user @scope = scope end def resolve if user.admin? scope.all else scope.all end end private attr_reader :user, :scope end def index? true end def show? true end def create? @user.admin? || @user.signed_in? end def new? @user.signed_in? end def edit? @user.admin? || @user == @project.user end def update? @user.admin? || @user == @project.user end def destroy? @user.admin? || @user == @project.user end end