@foreach ($conventions as $f) @endforeach

ref	code_unique	Personel	prestataire	mois	montant_versee	observation
{{ $f->id }}	{{ $f->code_unique }}	{{ $f->personel?->full_name() }}	{{ $f->prestataire->nom }}	{{ $f->mois }}	{{ $f->montant_versee }}	{{ $f->observation }}