select improvements

src/Fields/Select.php

@@ -5,6 +5,7 @@
 use Closure;
 use Cone\Root\Http\Requests\RootRequest;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Arr;
 
 class Select extends Field
 {
@@ -42,6 +43,27 @@ public function nullable(bool $value = true): static
         return $this;
     }
 
+    /**
+     * Determine if the field is nullable.
+     *
+     * @return bool
+     */
+    public function isNullable(): bool
+    {
+        return $this->nullable;
+    }
+
+    /**
+     * Set the multiple attribute.
+     *
+     * @param  bool  $value
+     * @return $this
+     */
+    public function multiple(bool $value = true): static
+    {
+        return $this->setAttribute('multiple', $value);
+    }
+
     /**
      * Set the options attribute.
      *
@@ -99,7 +121,11 @@ public function resolveFormat(RootRequest $request, Model $model): mixed
                     $this->resolveOptions($request, $model), 'formatted_value', 'value'
                 );
 
-                return $options[$value] ?? $value;
+                $value = array_map(static function (mixed $value) use ($options): mixed {
+                    return $options[$value] ?? $value;
+                }, Arr::wrap($value));
+
+                return implode(', ', $value);
             };
         }
 

tests/Fields/SelectTest.php

@@ -23,6 +23,26 @@ public function a_select_field_has_select_component()
         $this->assertSame('Select', $this->field->getComponent());
     }
 
+    /** @test */
+    public function a_select_field_can_be_nullable()
+    {
+        $this->assertFalse($this->field->isNullable());
+
+        $this->field->nullable();
+
+        $this->assertTrue($this->field->isNullable());
+    }
+
+    /** @test */
+    public function a_select_field_can_be_multiple()
+    {
+        $this->assertNull($this->field->multiple);
+
+        $this->field->multiple();
+
+        $this->assertTrue($this->field->multiple);
+    }
+
     /** @test */
     public function a_select_field_has_options()
     {