在没有全局作用域的情况下使用 Laravel touches

Use Laravel touches without global scopes

提问by Nicklas Kevin Frank

Concept Problem:I have a very simple problem when using the touchesattribute, to automatically update timestamp on a depending model; it correctly does so but also applies the global scopes.

概念问题：我在使用touches属性时遇到一个非常简单的问题，即在依赖模型上自动更新时间戳；它正确地这样做，但也适用于全局范围。

Is there any way to turn this functionality off? Or to ask specifically for automatictouchesto ignore global scopes?

有什么办法可以关闭这个功能吗？或者专门要求自动touches忽略全局范围？

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Concrete Example: When an ingredient model is updated all related recipes should be touched. This works fine, except we have a globalScopefor separating the recipes based on locales, that also gets used when applying the touches.

具体示例：当更新成分模型时，应触及所有相关配方。这很好用，除了我们有一个globalScope用于根据语言环境分离食谱的方法，在应用触摸时也会使用它。

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Ingredient Model:

配料型号：

class Ingredient extends Model
{
    protected $touches = ['recipes'];

    public function recipes() {
        return $this->belongsToMany(Recipe::class);
    }

}

Recipe Model:

配方型号：

class Recipe extends Model
{
    protected static function boot()
    {
        parent::boot();
        static::addGlobalScope(new LocaleScope);
    }

    public function ingredients()
    {
        return $this->hasMany(Ingredient::class);
    }
}

Locale Scope:

区域范围：

class LocaleScope implements Scope
{
    public function apply(Builder $builder, Model $model)
    {
        $locale = app(Locale::class);

        return $builder->where('locale', '=', $locale->getLocale());
    }

}

回答by Tadas Paplauskas

If you want to explicitly avoid a global scope for a given query, you may use the withoutGlobalScope()method. The method accepts the class name of the global scope as its only argument.

如果您想显式避免给定查询的全局范围，您可以使用该withoutGlobalScope()方法。该方法接受全局范围的类名作为其唯一参数。

$ingredient->withoutGlobalScope(LocaleScope::class)->touch();
$ingredient->withoutGlobalScopes()->touch();

Since you're not calling touch()directly, in your case it will require a bit more to make it work.

由于您不是touch()直接调用，因此在您的情况下，需要更多时间才能使其工作。

You specify relationships that should be touched in model $touchesattribute. Relationships return query builder objects. See where I'm going?

您指定应该在模型$touches属性中触及的关系。关系返回查询构建器对象。看到我要去哪里了吗？

protected $touches = ['recipes'];

public function recipes() {
   return $this->belongsToMany(Recipe::class)->withoutGlobalScopes();
}

If that messes with the rest of your application, just create a new relationship specifically for touching (heh :)

如果这与您的应用程序的其余部分混淆，只需创建一个专门用于触摸的新关系（呵呵：）

protected $touches = ['recipesToTouch'];

public function recipes() {
   return $this->belongsToMany(Recipe::class);
}

public function recipesToTouch() {
   return $this->recipes()->withoutGlobalScopes();
}