bindTo($this->row); $html = call_user_func($callback); $script = <<"+html+""); $(this).data('inserted', 1); } $("i", this).toggleClass("fa-caret-right fa-caret-down"); }); EOT; Admin::script($script); $btn = $btn ?: $this->column->getName(); $key = $this->getKey(); return << $btn EOT; } }