Laravel Relationship

Laravel relationship

## hasOne (user has one address), (address own by one user) ##
--------------------------------------------------------------
- User Model
protected $fillable = [
    'id',
    'name'
];

- Address Model
protected $fillable = [
    'id',
    'address_name',
    'user_id'
];

- in User Model
public function address()
{
    return $this->hasOne(Address::class,'user_id','id);
    // user_id => FK in Address Model
    // id => Local key / PK of user in User Model
}

- in Address Model
public function user()
{
    return $this->belongsTo(User::class,'user_id','id');
    // user_id => FK in Address Model
    // id => Local key / PK of user in User Model
}

## hasMany (user has many addresses), (addresses own by user) ##
----------------------------------------------------------------
- in User Model
public function addresses()
{
    return $this->hasMany(Address::class,'user_id','id);
    // user_id => FK in Address Model
    // id => Local key / PK of user in User Model
}

- in Address Model
public function user()
{
    return $this->belongsTo(User::class,'user_id','id');
    // user_id => FK in Address Model
    // id => Local key / PK of user in User Model
}