app\models\InvoiceDesign::getDesigns PHP Method

    public static function getDesigns()
    {
        $account = Auth::user()->account;
        $designs = Cache::get('invoiceDesigns');
        foreach ($designs as $design) {
            if ($design->id > Auth::user()->maxInvoiceDesignId()) {
                $designs->pull($design->id);
            }
            $design->javascript = $design->pdfmake;
            $design->pdfmake = null;
            if ($design->id == CUSTOM_DESIGN) {
                if ($account->custom_design) {
                    $design->javascript = $account->custom_design;
                } else {
                    $designs->pop();
                }
            }
        }
        return $designs;
    }

 private static function getViewModel()
 {
     // Tax rate $options
     $account = Auth::user()->account;
     $rates = TaxRate::scope()->orderBy('name')->get();
     $options = [];
     $defaultTax = false;
     foreach ($rates as $rate) {
         $options[$rate->rate . ' ' . $rate->name] = $rate->name . ' ' . ($rate->rate + 0) . '%';
         // load default invoice tax
         if ($rate->id == $account->default_tax_rate_id) {
             $defaultTax = $rate;
         }
     }
     return ['entityType' => ENTITY_QUOTE, 'account' => Auth::user()->account, 'products' => Product::scope()->orderBy('id')->get(['product_key', 'notes', 'cost', 'qty']), 'taxRateOptions' => $options, 'defaultTax' => $defaultTax, 'countries' => Cache::get('countries'), 'clients' => Client::scope()->with('contacts', 'country')->orderBy('name')->get(), 'taxRates' => TaxRate::scope()->orderBy('name')->get(), 'currencies' => Cache::get('currencies'), 'sizes' => Cache::get('sizes'), 'paymentTerms' => Cache::get('paymentTerms'), 'languages' => Cache::get('languages'), 'industries' => Cache::get('industries'), 'invoiceDesigns' => InvoiceDesign::getDesigns(), 'invoiceFonts' => Cache::get('fonts'), 'invoiceLabels' => Auth::user()->account->getInvoiceLabels(), 'isRecurring' => false];
 }