`yii\bootstrap\Html::error()` now automatically set 'help-block help-block-error' CSS class for generated tag

ActiveField.php

@@ -385,8 +385,8 @@ class ActiveField extends \yii\widgets\ActiveField
             $config['horizontalCssClasses'] = $cssClasses;
             $config['wrapperOptions'] = ['class' => $cssClasses['wrapper']];
             $config['labelOptions'] = ['class' => 'control-label ' . $cssClasses['label']];
-            $config['errorOptions'] = ['class' => 'help-block help-block-error ' . $cssClasses['error']];
-            $config['hintOptions'] = ['class' => 'help-block ' . $cssClasses['hint']];
+            $config['errorOptions']['class'] = 'help-block help-block-error ' . $cssClasses['error'];
+            $config['hintOptions']['class'] = 'help-block ' . $cssClasses['hint'];
         } elseif ($layout === 'inline') {
             $config['labelOptions'] = ['class' => 'sr-only'];
             $config['enableError'] = false;

BaseHtml.php

@@ -127,4 +127,19 @@ class BaseHtml extends \yii\helpers\Html
 
         return parent::checkboxList($name, $selection, $items, $options);
     }
+
+    /**
+     * {@inheritdoc}
+     * @since 2.0.8
+     */
+    public static function error($model, $attribute, $options = [])
+    {
+        if (!array_key_exists('tag', $options)) {
+            $options['tag'] = 'p';
+        }
+        if (!array_key_exists('class', $options)) {
+            $options['class'] = 'help-block help-block-error';
+        }
+        return parent::error($model, $attribute, $options);
+    }
 }

CHANGELOG.md

@@ -7,6 +7,7 @@ Yii Framework 2 bootstrap extension Change Log
 - Bug #126: Fixed `yii\bootstrap\ToggleButtonGroup` toggles dropdown for both buttons in case `split` is enabled (klimov-paul)
 - Bug #136: Allow overriding `horizontalCssClasses` when extending `\yii\bootstrap\ActiveField` (mikehaertl, klimov-paul)
 - Enh #118: Methods `radioList()` and `checkboxList()` overridden at `yii\bootstrap\Html` applying Bootstrap style (klimov-paul)
+- Enh #148: `yii\bootstrap\Html::error()` now automatically set 'help-block help-block-error' CSS class for generated tag (klimov-paul)
 - Enh #219: Add ability to use custom HTML in navbar-header (razvanphp)
 - Enh #171: Add ability to use a brandImage with the navbar (razvanphp)
 - Enh #227: Added `yii\bootstrap\Collapse::$itemToggleOptions` allowing setup custom collapse tag name and HTML options (mskayali, klimov-paul)

tests/ActiveFieldTest.php

@@ -126,7 +126,7 @@ HTML;
 <label class="control-label col-sm-3" for="dynamicmodel-attributename">Attribute Name</label>
 <div class="col-sm-6">
 <input type="text" id="dynamicmodel-attributename" class="form-control" name="DynamicModel[attributeName]">
-<div class="help-block help-block-error "></div>
+<p class="help-block help-block-error "></p>
 </div>
 
 </div>
@@ -151,7 +151,7 @@ EXPECTED;
 <label class="control-label col-md-4" for="dynamicmodel-attributename">Attribute Name</label>
 <div class="col-md-6">
 <input type="text" id="dynamicmodel-attributename" class="form-control" name="DynamicModel[attributeName]">
-<div class="help-block help-block-error col-md-3"></div>
+<p class="help-block help-block-error col-md-3"></p>
 </div>
 
 </div>

tests/HtmlTest.php

@@ -2,6 +2,7 @@
 
 namespace yiiunit\extensions\bootstrap;
 
+use yii\base\DynamicModel;
 use yii\bootstrap\Html;
 
 /**
@@ -153,4 +154,14 @@ EOD;
 EOD;
         $this->assertEqualsWithoutLE($expected, Html::checkboxList('test', 'value', ['value' => 'label&'], ['encode' => false]));
     }
+
+    public function testError()
+    {
+        $model = new DynamicModel();
+        $model->addError('foo', 'Some error message.');
+
+        $this->assertEquals('<p class="help-block help-block-error">Some error message.</p>', Html::error($model, 'foo'));
+        $this->assertEquals('<p class="custom-class">Some error message.</p>', Html::error($model, 'foo', ['class' => 'custom-class']));
+        $this->assertEquals('<div class="help-block help-block-error">Some error message.</div>', Html::error($model, 'foo', ['tag' => 'div']));
+    }
 }