Can you list the main types of relationships implemented in Eloquent ORM?

In Eloquent ORM (Laravel), the main types of relationships between models are:

• One-to-One: each record is related to one record of another table.

  public function userProfile() {
      return $this->hasOne(UserProfile::class);
  }
  

• One-to-Many: one record is related to many records of another table.

  public function posts() {
      return $this->hasMany(Post::class);
  }
  

• Inverse One-to-Many: the inverse relationship to one.

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

• Many-to-Many: records are related through an intermediate table.

  public function roles() {
      return $this->belongsToMany(Role::class);
  }
  

• Polymorphic Relations: a relationship where a model can belong to multiple other models.

  public function comments() {
      return $this->morphMany(Comment::class, 'commentable');
  }
  

These relationship types allow for convenient working with relational data in Laravel.