laravel 5 retrieve all attributes from 2 relational tables by eloquent

Question

Hello i have 2 table (Users and Posts) with 1 to many realtionship.

I want to retrive all data in one single query by eloquent and result should be as follow

Users table: id | name

Posts Table: id | user_id | title| body

retrived data should be

name | title | body

Answer 1

Eager load the data:

$data = User::with('posts')->get();

In a view:

@foreach ($user->posts as $post)
    {{ $post->title }}
@endforeach

If you mean you want to make Laravel create just one query to the DB, you can get all posts with:

$posts = Post::where('user_id', $userId)->get();

Answer 2

尝试这个

User::join("posts","posts.user_id","=","users.id")->get();

Answer 3

Try running the following query in MySQL. It should work.

select name,title,body from Users,Posts where Users.id=Posts.id group by Users.id

Answer 4

In Post model create the following code in laravel 8.0.x:

public function user()
{
    return $this->belongsTo(User::class);
}

In view just call the attribute:

$post->user->name;