'datetime', 'date_resold' => 'datetime', 'purchase_date' => 'datetime', 'purchase_price' => 'decimal:2', 'purchase_tax_rate' => 'decimal:2', 'purchase_invoice_line' => 'integer', 'created_at' => 'datetime', 'updated_at' => 'datetime', ]; public function fornitore(): BelongsTo { return $this->belongsTo(Fornitore::class, 'fornitore_id'); } public function product(): BelongsTo { return $this->belongsTo(Product::class, 'product_id'); } public function legacyScheda(): BelongsTo { return $this->belongsTo(AssistenzaTecnorepairScheda::class, 'legacy_scheda_id'); } }