Add support for arrays of inputs

Author: IsraelOrtuno

spec/FieldBuilderSpec.php

@@ -205,6 +205,27 @@ function it_generates_a_text_field_with_errors($form, $theme, $lang, Session $se
         $this->text('name', 'value');
     }
 
+    function it_generates_an_array_of_inputs_with_errors($form, $theme, $lang, Session $session)
+    {
+        // Having
+        $session->get('errors')->willReturn(new MessageBag([
+            'group.name' => ['This is wrong']
+        ]));
+
+        $this->setSessionStore($session);
+
+        // Expect
+        $form->text("group[name]", "value", ["class" => "error", "id" => "group_name"])->shouldBeCalled();
+        $theme->render(
+            null,
+            Argument::withEntry('errors', ['This is wrong']),
+            "fields.default"
+        )->shouldBeCalled();
+
+        // When
+        $this->text('group[name]', 'value');
+    }
+
     function it_generates_a_text_field_with_extra_data($theme)
     {
         // Expect

src/FieldBuilder.php

@@ -533,11 +533,7 @@ protected function getHtmlId($value, $attributes)
             return $attributes['id'];
         }
 
-        if (strpos($value, '.')) {
-            return str_replace('.', '_', $value);
-        }
-
-        return $value;
+        return str_replace(['.', '[', ']'], ['_', '_', ''], $value);
     }
 
     /**
@@ -640,7 +636,14 @@ protected function getClasses($type, array $attributes = [], $errors = null)
     protected function getControlErrors($name)
     {
         if ($this->session) {
+
             if ($errors = $this->session->get('errors')) {
+
+                // Replaces to get errors on nested fields
+                if (strpos($name, "[")) {
+                    $name = str_replace(['[', ']'], ['.', ''], $name);
+                }
+
                 return $errors->get($name, []);
             }
         }
@@ -738,7 +741,7 @@ protected function doBuild($type, $name, $value = null, array $attributes = arra
         $label = $this->getLabel($name, $attributes);
         $htmlName = $this->getHtmlName($name);
         $id = $this->getHtmlId($name, $attributes);
-        $errors = $this->getControlErrors($id);
+        $errors = $this->getControlErrors($name);
         $hasErrors = !empty($errors);
         $customTemplate = $this->getCustomTemplate($attributes);