Phalcon：在1-1关系中，hasOne和belongsTo有什么区别？

I have 2 tables (2 models)

User
-uid
-email
-password
-(other fields)

Profile
-uid
-name
-age
-phone
-(other fields)

They have 1-1 relationship and I implemented the relationship as following:

class User extends Model
{
    public function initialize()
    {
        $this->hasOne('uid', 'Profile', 'uid');
    }
}

class Profile extends Model
{
    public function initialize()
    {
        $this->hasOne('uid', 'User', 'uid');
    }
}

This implementation is right? Can I replace hasOne by belongsTo? Thank you for help! :-)

hasOne is defined in the parent model while belongsTo is defined in the child model.

A User hasOne Profile and that Profile belongsTo one User.

The correct relationship definitions for your case would be:

class User extends Model
{
    public function initialize()
    {
        $this->hasOne('uid', 'Profile', 'uid');
    }
}
class Profile extends Model
{
    public function initialize()
    {
        $this->belongsTo('uid', 'User', 'uid');
    }
}