Return object using with() in Laravel Eloquent

问题

Currently I get data like so:

->with(['posts' => function ($query) {
            $query->active()->available()->limit(1)->with('user');
            }])

and it returns the user data as an array of objects which is expected. Because I am using a limit and will only ever need one result, I'd like to return it as a regular object, so instead of:

"data": value,
"posts": [
    {
      "data": value,
      "user": {
        "data": value
      }
    }
  ]

I'd like to return it as:

"data": value,
"post":
        {
          "data": value,
          "user": {
            "data": value
          }
        }

What's the best way to go about it?

回答1:

Create a hasOne association on your model that defines the scope you'd like.

public function activePost()
{
    return $this->hasOne(Post::class)->active()->available();
]

Then call with('activePost.user') to load that single, active and available post with it's associated user.

回答2:

As long as your relationship is a hasMany, hasManyThrough, belongsToMany, morphMany, morphedByMany relationship (I think that's all of them), eager loading will always return an array since the primary use of the with method is for adding clauses to a relationship.

Quoted from best answer on the laracasts forums: https://www.laracasts.com/discuss/channels/eloquent/first-and-take-do-not-work-correctly-in-eager-load-laravel?page=0)

@Dwight's answer is the right approach.

来源：https://stackoverflow.com/questions/48410201/return-object-using-with-in-laravel-eloquent

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