这是我的问题：我想创建一个树枝扩展名来翻译我数据库的内容。但是当我称自己的扩展名树枝为“ translate”时，symfony返回一个异常，因为它没有找到与对象匹配的键。
我第一次使用Symfony propertyAccessor，所以也许我的电话是错误的。如果已经使用propertyAccessor的人可以注册我。
代码如下：
树枝扩展名：
class TranslateExtension extends \Twig_Extension
{
/**
*
* @var string
*/
protected $locale;
/**
*
* @var string
*/
protected $defaultLocale;
/**
*
* @var \Symfony\Component\PropertyAccess\PropertyAccessor
*/
protected $propertyAccessor;
public function __construct(RequestStack $requestStack)
{
if($requestStack->getMasterRequest())
{
$this->locale = $requestStack->getMasterRequest()->getLocale();
$this->defaultLocale = $requestStack->getMasterRequest()->getDefaultLocale();
}
$this->propertyAccessor = PropertyAccess::createPropertyAccessor();
}
public function getFunctions()
{
return array(
new \Twig_SimpleFunction('translate', array($this, 'translate')),
);
}
public function translate($array, $key)
{
if(!is_array($array) && method_exists($array, 'toArray'))
{
$array = $array->toArray();
}
elseif(!is_array($array))
{
throw new \Exception('Translation need an array or an object wich implements "toArray"');
}
if(isset($array[$this->locale]))
{
return $this->propertyAccessor->getValue($array[$this->locale], $key);
}
if(isset($array[$this->defaultLocale]))
{
return $this->propertyAccessor->getValue($array[$this->defaultLocale], $key);
}
else
{
throw new \Exception('Object key "'.$key.'" not translated');
}
}
public function getName()
{
return 'translate';
}
}
我的翻译班：
class GlasswareTranslation
{
/**
* @ORM\Column(name="id_glassware_translation", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
* @var integer
*/
private $id;
/**
* @var string
* @ORM\Column(name="description", type="string", length=45)
*/
private $description;
/**
* @ORM\ManyToOne(targetEntity="CocktailGlassware", inversedBy="glassTranslation",cascade={"persist"})
* @ORM\JoinColumn(name="id_cocktail_glassware", referencedColumnName="id_cocktail_glassware")
* @var CocktailGlassware
*/
private $glasses;
/**
* @var string
* @ORM\Column(name="locale", type="string", length=45)
*/
private $locale;
/**
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* @param int $id
*/
public function setId($id)
{
$this->id = $id;
}
/**
* @return string
*/
public function getDescription()
{
return $this->description;
}
/**
* @param string $description
*/
public function setDescription($description)
{
$this->description = $description;
}
/**
* @return CocktailGlassware
*/
public function getGlasses()
{
return $this->glasses;
}
/**
* @param Cocktail $glasses
*/
public function setGlasses($glasses)
{
$this->glasses = $glasses;
}
/**
* @return mixed
*/
public function getLocale()
{
return $this->locale;
}
/**
* @param mixed $locale
*/
public function setLocale($locale)
{
$this->locale = $locale;
}
}
我要翻译的实体
class CocktailGlassware
{
/**
* @ORM\Column(name="id_cocktail_glassware", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
* @var integer
*
* @Expose
*/
private $id;
/**
* @var string
* @ORM\Column(name="name", type="string", length=255, unique=true)
* @Assert\Length(min=2, max=30)
* @Expose
*/
private $name;
/**
* @var string
* @ORM\Column(name="name_fr", type="string", length=255, unique=true)
* @Assert\Length(min=2, max=30)
* @Expose
*/
private $nameFr;
/**
* @var \DateTime
* @ORM\Column(name="updated_at", type="datetime", nullable=true)
*/
private $updatedAt;
/**
* @ORM\Column(name="archived", type="boolean")
*/
private $archived = false;
/**
* @ORM\OneToOne(targetEntity="Image", cascade={"persist", "remove"})
* @ORM\JoinColumn(name="id_image", referencedColumnName="id")
* @Assert\Valid()
*/
private $image;
/**
* L'url de l'image
* @Expose
*/
private $imageUrl;
/**
* @ORM\OneToMany(targetEntity="GlasswareTranslation", mappedBy="glasses", indexBy="languages", cascade={"all"}, fetch="EAGER")
* @var CocktailTranslation[]
*/
private $glassTranslation;
public function __construct()
{
$this->glassTranslation = new ArrayCollection();
}
/**
* Update last sync date
*
* @ORM\PrePersist()
* @ORM\PreUpdate()
*/
public function updateDate()
{
$this->setUpdatedAt(new \Datetime());
}
/**
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* @param string $name
*/
public function setName($name)
{
$this->name = $name;
}
/**
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* @param int $id
*/
public function setId($id)
{
$this->id = $id;
}
/**
* @return \DateTime
*/
public function getUpdatedAt()
{
return $this->updatedAt;
}
/**
* @param \DateTime $updatedAt
*/
public function setUpdatedAt($updatedAt)
{
$this->updatedAt = $updatedAt;
}
/**
* @return string
*/
public function getNameFr()
{
return $this->nameFr;
}
/**
* @param string $nameFr
*/
public function setNameFr($nameFr)
{
$this->nameFr = $nameFr;
}
/**
* @return mixed
*/
public function getArchived()
{
return $this->archived;
}
/**
* @param mixed $archived
*/
public function setArchived($archived)
{
$this->archived = $archived;
}
/**
* @return mixed
*/
public function getImage()
{
return $this->image;
}
/**
* @param mixed $image
*/
public function setImage($image)
{
$this->image = $image;
}
/**
* @return mixed
*/
public function getImageUrl()
{
return $this->imageUrl;
}
/**
* @param mixed $imageUrl
*/
public function setImageUrl($imageUrl)
{
$this->imageUrl = $imageUrl;
}
/**
* @return CocktailTranslation[]
*/
public function getGlassTranslation()
{
return $this->glassTranslation;
}
/**
* @param CocktailTranslation[] $glassTranslation
*/
public function setGlassTranslation($glassTranslation)
{
$this->glassTranslation = $glassTranslation;
}
}
这就是我在视图中如何称呼我的扩展名，Symfony向我返回“对象键”说明“未翻译”）
{% for key, glass in glasses %}
<div>
<div class="cocktail-glass {% if glass == cocktail.glassware %} active {% endif %}">
<img class="glassware-icon" {% if glass.image is not null %} src="{{ asset(glass.image.webPath) }}" {% endif %} />
{#<div class="glassware-icon-label">{{ glass.name }}</div>#}
<div class="glassware-icon-label">{{ translate(glass.glassTranslation, 'description' ) }}</div>
</div>
<input type="radio" id="cocktail_glassware_{{ loop.index }}"
name="cocktail[glassware]" required="required" value="{{ glass.id }}"
{% if glass == cocktail.glassware %}
checked="checked"
{% endif %}>
</div>
{% endfor %}