Duplicate system on two forms

Question

My project is to create a small driving school for motorbike.

I have 4 tables: Former, Training, Revision, Motorbike

My functions cre

Answer 1

The easiest way is making use of a query scope in the Training model. I'll assume that a motorbike is the whole day unavailable when in revision.

public function scopeAvailable($query) 
{
    return $query->whereNotBetween('trainings.date_sceance', [
        'revisions.date_revision_start' => function($q) {
             return $q->where('trainings.fk_motorbike', '=', 'revisions.fk_motorbike');
        },
        'revisions.date_revision_end' => function($q) {
             return $q->where('trainings.fk_motorbike', '=', 'revisions.fk_motorbike');
        }]
    );
}

I haven't test this code. It is possible it won't give what you expect, in other words, my proposition is wrong. Using the scope would be

$exists = Training::where('date_seance', $request->get('date_seance'))->available()->count();