我有两张桌子categories和product_categories。
categories有id，name和product_categories有category_id。如何从categories中获取id并将该值放入category_id？
我试过了：
Route::get('/categories/create', function() {
$categories = [
'Hardwares',
'Buldings',
'Properties',
];
foreach($categories as $category) {
$productCategories = new ProductCategory;
$categories = new Category;
$categories->name = $category;
$productCategories->category_id = $categories->id;
$categories->save();
$productCategories->save();
}
}); 可以通过一对一的关系吗？我刚刚在‘ProductCategory.php’中尝试了一下：
public function category() {
return $this->belongsTo(Category::class);
}转载请注明出处:http://www.cshftz.com/article/20230526/1806569.html