获取 pivot id (Laravel) 所在的所有数据

Question

是否有最好的 way/the 最简单的方法来获取所有数据的枢轴？我尝试了这个 $article = Article::with('category')->wherePivot('category_id', $category)->get(); 但出现错误

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

Article

id

content

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

Articles_Has_Categories

id

article_id

category_id

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

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

Category

id

name

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

Answer 1

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

如果你使用 $category 作为数组使用 $query->whereHas('category_id', $category); 否则如果你使用 $category 是一个单一的 id $query->where('category_id', $category);

Answer 2

请试试这个：

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

获取 pivot id (Laravel) 所在的所有数据

Get all data where pivot id (Laravel)

php

laravel

eloquent

laravel-7