Fix a null error

Author: cable8mm

src/Resolvers/DecimalResolver.php

@@ -49,6 +49,10 @@ public function nova(): ?string
 
     public function cast(): ?string
     {
-        return 'decimal:'.Bracket::of($this->column->bracket)->escape();
+        if (empty($this->column->bracket)) {
+            return null;
+        }
+
+        return 'decimal:'.trim(preg_replace('/.+,/', '', $this->column->bracket));
     }
 }

tests/Unit/Resolvers/DecimalResolverTest.php

@@ -54,6 +54,15 @@ public function test_fake_method_can_working_well_with_bracket(): void
         $this->assertEquals('\''.$resolver->field.'\' => fake()->randomFloat(2, 0, 999999),', $resolver->fake());
     }
 
+    public function test_cast_can_working_well_with_bracket(): void
+    {
+        $this->column->bracket = '8, 2';
+
+        $resolver = new DecimalResolver($this->column);
+
+        $this->assertEquals('decimal:2', $resolver->cast());
+    }
+
     public function test_migration_method_can_working_well(): void
     {
         $resolver = new DecimalResolver($this->column);