laravel 如何通过另一个 model 访问 model 的数据

Question

I am working with laravel 8 and I have the following table structure.

Users table

id,name,email,password,...etc.

usersProfile table

id,bio,facebook,twitter,phone, user_id,...etc.

projects table

id, title,details,image,user_id,....etc.

and I create the following relation in Project model

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

and have another relation in User model as following

 public function profile(){
    return $this->hasOne(UserProfile::class,'user_id');
}

my question is how I can access user profile through project model? I read about hasOneThrough relation but I don't understand how to apply it in my code

Answer 1

At the first you need to get a user then you can access the profile. so:

Project::with('user.profile')->get()

Answer 2

Assuming in your user_profiles table you have project_id as a foreign key , Try:

public function userProfile()
    {
        return $this->hasOneThrough(
           UserProfile::class,
           Project::class,
           'user_id', // Foreign key on the projects table
           'project_id', // Foreign key on the user_profiles table
           'id', // Local key on the users table
           'id' // Local key on the projects table
    );
    }

Answer 3

Change this:

public function profile(){
    return $this->hasOne(UserProfile::class,'user_id');
}

To this:

public function profile(){
    return $this->belongsTo(UserProfile::class,'user_id');
}

Add this in your UserProfile model:

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

Get projects and try this to check if works:

$project->user->profile;