Adds a null check to label templates, adds return types for validation methods

app/Http/Controllers/SettingsController.php

@@ -799,6 +799,7 @@ public function postLabels(StoreLabelSettings $request) : RedirectResponse
         }
 
         if ($setting->save()) {
+
             return redirect()->route('settings.labels.index')
                 ->with('success', trans('admin/settings/message.update.success'));
         }

app/Http/Requests/StoreLabelSettings.php

@@ -2,8 +2,11 @@
 
 namespace App\Http\Requests;
 
+
+use App\Models\Labels\Label;
 use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Support\Facades\Gate;
+use Illuminate\Validation\Rule;
 
 class StoreLabelSettings extends FormRequest
 {
@@ -22,6 +25,10 @@ public function authorize(): bool
      */
     public function rules(): array
     {
+        $names = Label::find()?->map(function ($label) {
+            return $label->getName();
+        })->values()->toArray();
+
         return [
             'labels_per_page'                     => 'numeric',
             'labels_width'                        => 'numeric',
@@ -36,6 +43,10 @@ public function rules(): array
             'labels_pagewidth'                    => 'numeric|nullable',
             'labels_pageheight'                   => 'numeric|nullable',
             'qr_text'                             => 'max:31|nullable',
+            'label2_template'                     => [
+                'required',
+                Rule::in($names),
+            ],
         ];
     }
 }

app/Models/Labels/Label.php

@@ -411,14 +411,14 @@ public final function write2DBarcode(TCPDF $pdf, $value, $type, $x, $y, $width,
     /**
      * Checks the template is internally valid
      */
-    public final function validate() {
+    public final function validate() : void {
         $this->validateUnits();
         $this->validateSize();
         $this->validateMargins();
         $this->validateSupport();
     }
 
-    private function validateUnits() {
+    private function validateUnits() : void {
         $validUnits = [ 'pt', 'mm', 'cm', 'in' ];
         $unit = $this->getUnit();
         if (!in_array(strtolower($unit), $validUnits)) {
@@ -430,7 +430,7 @@ private function validateUnits() {
         }
     }
 
-    private function validateSize() {
+    private function validateSize() : void {
         $width = $this->getWidth();
         if (!is_numeric($width) || is_string($width)) {
             throw new \UnexpectedValueException(trans('admin/labels/message.invalid_return_type', [
@@ -450,7 +450,7 @@ private function validateSize() {
         }
     }
 
-    private function validateMargins() {
+    private function validateMargins() : void {
         $marginTop = $this->getMarginTop();
         if (!is_numeric($marginTop) || is_string($marginTop)) {
             throw new \UnexpectedValueException(trans('admin/labels/message.invalid_return_type', [
@@ -488,7 +488,7 @@ private function validateMargins() {
         }
     }
 
-    private function validateSupport() {
+    private function validateSupport() : void {
         $support1D = $this->getSupport1DBarcode();
         if (!is_bool($support1D)) {
             throw new \UnexpectedValueException(trans('admin/labels/message.invalid_return_type', [

app/View/Label.php

@@ -7,6 +7,7 @@
 use App\Models\Labels\Sheet;
 use Illuminate\Contracts\View\View;
 use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Log;
 use Illuminate\Support\Facades\Storage;
 use Illuminate\Support\Traits\Macroable;
 use TCPDF;
@@ -38,7 +39,7 @@ public function render(callable $callback = null)
         $settings = $this->data->get('settings');
         $assets = $this->data->get('assets');
         $offset = $this->data->get('offset');
-        $template = LabelModel::find($settings->label2_template);
+
 
         // If disabled, pass to legacy view
         if ((!$settings->label2_enable)) {
@@ -49,6 +50,12 @@ public function render(callable $callback = null)
                 ->with('count', $this->data->get('count'));
         }
 
+            $template = LabelModel::find($settings->label2_template);
+
+        if ($template === null) {
+            return redirect()->route('settings.labels.index')->with('error', trans('admin/settings/message.labels.null_template'));
+        }
+
         $template->validate();
 
         $pdf = new TCPDF(

resources/lang/en-US/admin/settings/message.php

@@ -36,6 +36,9 @@
         'testing_authentication' => 'Testing LDAP Authentication...',
         'authentication_success' => 'User authenticated against LDAP successfully!'
     ],
+    'labels' => [
+        'null_template' => 'Label template not found. Please select a template.',
+        ],
     'webhook' => [
         'sending' => 'Sending :app test message...',
         'success' => 'Your :webhook_name Integration works!',

resources/views/settings/labels.blade.php

@@ -36,7 +36,6 @@
                 </div>
                 <div class="box-body">
 
-
                     <div class="col-md-12">
 
                         <!-- New Label Engine -->