使用Anahkiasen/Polyglot读取数据时,在尝试获取非对象的属性时返回错误


Reading data using Anahkiasen/Polyglot returns error trying to get property of non-object

在将Anahkiasen/Polyglot包添加到我的Laravel 4.2项目中后,我试图让它发挥作用。我按照我认为应该的方式设置了所有内容(文档有点糟糕)。保存到数据库似乎不是问题,但当我想阅读时,我会收到以下错误:

Trying to get property of non-object (View: /Applications/MAMP/htdocs/*my view*.blade.php)

型号:

use Polyglot'Polyglot;
class Page extends Polyglot {
    use SoftDeletingTrait;
    protected $fillable = [
        'lang',
        'meta_title',
        'meta_description',
        'title',
        'page_title',
        'page_content',
    ];
    protected $polyglot = [
        'meta_title',
        'meta_description',
        'title',
        'page_title',
        'page_content',
    ];
    // ...
}
class PageLang extends Eloquent {
    public $timestamps = false;
    protected $fillable = [
        'page_id',
        'lang',
        'meta_title',
        'meta_description',
        'title',
        'page_title',
        'page_content',
    ];
}

我的刀片模板:

$page->nl->title
/*
This is what's causing the error
$page->title doesn't produce errors but is, of course, empty
*/

有一段时间了。非常感谢您的帮助:-)

我不熟悉这个库,但看看基本的Polyglot类,当你访问类似$page->nl 的东西时,这个抽象似乎是通过使用PHP的神奇__get变量来注入n个本地化对象来实现的

__get

public function __get($key)
{
    // If the relation has been loaded already, return it
    if (array_key_exists($key, $this->relations)) {
        return $this->relations[$key];
    }
    // If the model supports the locale, load and return it
    if (in_array($key, $this->getAvailable())) {
        $relation = $this->hasOne($this->getLangClass())->whereLang($key);
        if ($relation->getResults() === null) {
            $relation = $this->hasOne($this->getLangClass())->whereLang(Config::get('polyglot::fallback'));
        }
        return $this->relations[$key] = $relation->getResults();
    }
    // If the attribute is set to be automatically localized
    if ($this->polyglot) {
        if (in_array($key, $this->polyglot)) {
            /**
             * If query executed with join and a property is already there
             */
            if (isset($this->attributes[$key])) {
                return $this->attributes[$key];
            }
            $lang = Lang::getLocale();
            return $this->$lang ? $this->$lang->$key : null;
        }
    }
    return parent::__get($key);
}

如果失败,有许多条件会导致父级的__get被称为

return parent::__get($key);

换句话说,正常的模型行为。这可能就是上面发生的事情——由于nl不是一个集合对象,当你试图调用它上的方法时,PHP会抱怨

__get中的三个条件句中,这似乎是失败的最可能候选者

    if (in_array($key, $this->getAvailable())) {
        $relation = $this->hasOne($this->getLangClass())->whereLang($key);
        if ($relation->getResults() === null) {
            $relation = $this->hasOne($this->getLangClass())->whereLang(Config::get('polyglot::fallback'));
        }
        return $this->relations[$key] = $relation->getResults();
    }

如果你的具体情况,它看起来像

    if (in_array('nl', $this->getAvailable())) {
        //...
    }

getAvailable()

protected function getAvailable()
{
    return Config::get('polyglot::locales');
}

它查找名为CCD_ 8的配置字段。我会检查调用该配置字段是否返回nl作为配置的区域设置

var_dump(Config::get('polyglot::locales'));

我的猜测是没有,可能是因为你没有运行artisan命令来发布包的配置

php artisan config:publish anahkiasen/polyglot