什么laravel rleonship适合这个数据库
代码示例
其中网站:https://laravel.com/docs/
use Illuminate\Database\Eloquent\Builder;
// Retrieve posts with at least one comment containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'code%');
})->get();
// Retrieve posts with at least ten comments containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'code%');
}, '>=', 10)->get();默认情况下，laravel8中关系中的null eloquent用户数据
# simple handle in blade file
{{ $post->author->name or 'No author' }}
# Model action
public function author()
{
return $this->belongsTo('App\Author')->withDefault();
}
public function author()
{
return $this->belongsTo('App\Author')->withDefault([
'name' => 'Guest Author',
]);
}
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