Instead of belongsTo, use hasMany

For belongsTo relationship, instead of passing parent's ID when creating child record, use hasMany relationship to make a shorter sentence.

 1// if Post -> belongsTo(User), and User -> hasMany(Post)...
 2// Then instead of passing user_id...
 3Post::create([
 4    'user_id' => auth()->id(),
 5    'title' => request()->input('title'),
 6    'post_text' => request()->input('post_text'),
 7]);
 8 
 9// Do this
10auth()->user()->posts()->create([
11    'title' => request()->input('title'),
12    'post_text' => request()->input('post_text'),
13]);