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在laravel中获取具有Eloquent关系的列列表

分类: 技术问答 • 2022-03-17 10:15:25

在laravel中获取具有Eloquent关系的列列表

问题描述：

I want to get column list with Eloquent relation in laravel. When I use this comman 

 $columns = Schema::getColumnListing('news');

Result is all fields of news table but I want to get relation fields for CategoryNews table.

News model:

public function NewsCategories()
   {
    return $this->belongsTo('App\CategoryNews');
   }

CategoryNews model:

public function News()
  {
    return $this->hasMany('App\News');
  }

答

You should be able to do something like this:

$columns = Schema::getColumnListing($news->NewsCategories()->getRelated()->getTable()));

Using getRelated() method you are getting related object for relationship (in your case it's App\CategoryNews) and now using method getTable() you can get table name for this model and you can use this table name for getColumnListing() method.

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