{{#let @model as |article|}}
  <h1>Edit article {{article.id}}</h1>

  <form>
    <div>
      <label for="title">Title:</label>
      <input
        id="title"
        value={{article.title}}
        {{on "input" (action (mut article.title) value="target.value")}}
      >
    </div>

    <div>
      <label for="body">Body:</label>
      <textarea
        id="body"
        {{on "input" (action (mut article.body) value="target.value")}}
      >{{article.body}}</textarea>
    </div>
 
    <button
      type="button"
      {{on "click" (bind article.rollbackAttributes target=article)}}
    >
      reset changes
    </button>
  </form>
{{/let}}