Create default value modifier

Author: kevin-dapps

src/Concerns/HasModifiers.php

@@ -6,6 +6,7 @@
 use Illuminate\Support\Str;
 use SimonHamp\LaravelNovaCsvImport\Contracts\Modifier;
 use SimonHamp\LaravelNovaCsvImport\Modifiers\Boolean;
+use SimonHamp\LaravelNovaCsvImport\Modifiers\DefaultValue;
 use SimonHamp\LaravelNovaCsvImport\Modifiers\ExcelDate;
 use SimonHamp\LaravelNovaCsvImport\Modifiers\Hash;
 use SimonHamp\LaravelNovaCsvImport\Modifiers\Prefix;
@@ -23,6 +24,7 @@ protected function bootHasModifiers()
         // Register built-in modifiers
         static::registerModifiers(
             new Boolean,
+            new DefaultValue,
             new ExcelDate,
             new StrModifier,
             new Hash,

src/Modifiers/DefaultValue.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace SimonHamp\LaravelNovaCsvImport\Modifiers;
+
+use SimonHamp\LaravelNovaCsvImport\Contracts\Modifier;
+
+class DefaultValue implements Modifier
+{
+  public function title(): string
+  {
+    return 'Default Value';
+  }
+
+  public function description(): string
+  {
+    return "Set a default value for the field if the CSV column is empty or missing";
+  }
+
+  public function settings(): array
+  {
+    return [
+      'string' => [
+        'type' => 'string',
+        'title' => 'Default Value',
+      ],
+    ];
+  }
+
+  public function handle($value = null, array $settings = []): string
+  {
+    return empty($value) ? $settings['string'] : $value;
+  }
+}