小树枝中文本的Symfony 3实体常量

我希望能够将实体定义的常量转换为其相关的文本值。为了更好地概述，我删除了大部分与问题无关的代码

Todo实体

/**
 * Todo
 *
 * @ORM'Table(name="todo")
 * @ORM'Entity(repositoryClass="TodoBundle'Repository'TodoRepository")
 * @ORM'HasLifecycleCallbacks
 */
class Todo
{
    const PRIORITY_HIGH = 2;
    const PRIORITY_NORMAL = 1;
    const PRIORITY_LOW = 0;
    /**
     * @var int
     *
     * @Assert'NotBlank(groups={"new", "edit"})
     * @Assert'Choice(callback="getPriorities")
     *
     * @ORM'Column(name="priority", type="integer")
     */
    private $priority;
    /**
     * Set priority
     *
     * @param integer $priority
     *
     * @return Todo
     */
    public function setPriority($priority)
    {
        $this->priority = $priority;
        return $this;
    }
    /**
     * Get priority
     *
     * @return int
     */
    public function getPriority()
    {
        return $this->priority;
    }
    /**
     * Get all priorities
     *
     * @return int
     */
    public static function getPriorities()
    {
        return array(
            'High'      => self::PRIORITY_HIGH,
            'Normal'    => self::PRIORITY_NORMAL,
            'Low'       => self::PRIORITY_LOW
        );
    }
}

Twig概述

{% for todo in todos %}
    <tr>
        <td>{{ todo.title }}</td>
        <td>{{ todo.content }}</td>
        <td>{{ todo.priority }}</td> *Change this to output High, Normal or Low according to its set priority*
        <td>{{ todo.duedate|date('d/m/Y') }}</td>
        <td>
            <div class="btn-group" role="group">
                <a href="{{ path('todo.show', {'id': todo.id }) }}" class="btn btn-success">View</a>
                <a href="{{ path('todo.edit', {'id': todo.id }) }}" class="btn btn-warning">Edit</a>
                <a href="{{ path('todo.delete', {'id': todo.id }) }}" class="btn btn-danger">Delete</a>
            </div>
        </td>
    </tr>
{% endfor %}

当使用FormBuilder创建表单时，我可以将这段代码称为

->add('priority', ChoiceType::class, array(
    'choices'   => Todo::getPriorities()
))

创建带有像一样填充的文本和值的dorpdown字段

<select id="new_priority" name="new[priority]" class="form-control">
    <option value="2">High</option>
    <option value="1" selected="selected">Normal</option>
    <option value="0">Low</option>
</select>

我希望这是可能的，或者以另一种方式实现，在稍后的体育场中实现翻译将是有用的。