获取 pivot id (Laravel) 的所有数据

Question

有没有最好的方法/最简单的方法来获取 pivot 的所有数据？ 我试过这个$article = Article::with('category')->wherePivot('category_id', $category)->get(); 但我有错误

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'pivot' in 'where clause' (SQL: select * from `articles` where `pivot` = category_id)

关系是多对多的

文章

• ID
• 内容

public function category(){
        return $this->belongsToMany(Category::class, 'articles_has_categories', 'article_id', 'category_id');
    }

文章_有_分类

• ID
• article_id
• 类别ID

public function article ()
    {
        return $this->belongsTo(Article::class,'article_id');
    }

    public function category ()
    {
        return $this->belongsTo(Category::class,'category_id');
    }

类别

• ID
• 姓名

public function article(){
        return $this->belongsToMany(Article::class, 'articles_has_categories', 'category_id', 'article_id');
    }

Answer 1

请试试这个：

    $article = Article::with(['category' => function($query) use ($category) {
            $query->where('category_id', $category);
        }
    ])->get();

Answer 2

$article = Article::with(['category' => function($query) use ($category) {
        $query->whereHas('category_id', $category);
    }
])->get();

如果您使用$category作为数组，则使用$query->whereHas('category_id', $category); 否则，如果您使用$category是单个 id $query->where('category_id', $category);