如何在 Laravel 中编写这个复杂的查询？

Question

我有一个完美的查询，但我需要它在 ORM Laravel 中。我只需要在 eloquent 查询构建器中使用此查询。

SELECT * FROM product where vendor_id in (
  SELECT vendor_id from vendor where is_block = 0
);

Scenario : There are two tables. One for Product and other for Vendor. I want to select product from Product table. Each product belong to a vendor. If vendor is blocked then don't select product. If is_block attribute is 0 then its mean that vendor is not block. If is_blocked=1 then vendor is blocked. I need to select only products of a vendor whose is_block = 0.

Answer 1

使用whereHas()方法：

Product::whereHas('vendor', function($q) {
    $q->where('is_block', 0);
})->get();

或whereDoesntHave()方法：

Product::whereDoesntHave('vendor', function($q) {
    $q->where('is_block', 1);
})->get();

确保您已在 Product 模型中定义关系：

public function vendor()
{
    return $this->belongsTo(Vendor::class);
}

如何在 Laravel 中编写这个复杂的查询？

How can I write this complex query in Laravel?

php

sql

laravel