Fixed setting "required" attribute for file input. Closes #4124

In general fixed the issue where enabling SECURE_SKIP for a field
skipped "required" attribute check altogether. Instead now "required"
is set to false for hidden fields by default.

lib/Cake/Test/Case/View/Helper/FormHelperTest.php

@@ -8184,6 +8184,22 @@ class FormHelperTest extends CakeTestCase {
 			'/div'
 		);
 		$this->assertTags($result, $expected);
+
+		$result = $this->Form->input('Contact.iamrequiredalways', array('type' => 'file'));
+		$expected = array(
+			'div' => array('class' => 'input file required'),
+			'label' => array('for' => 'ContactIamrequiredalways'),
+			'Iamrequiredalways',
+			'/label',
+			'input' => array(
+				'type' => 'file',
+				'name' => 'data[Contact][iamrequiredalways]',
+				'id' => 'ContactIamrequiredalways',
+				'required' => 'required'
+			),
+			'/div'
+		);
+		$this->assertTags($result, $expected);
 	}
 
 /**

lib/Cake/View/Helper/FormHelper.php

@@ -1625,17 +1625,16 @@ class FormHelper extends AppHelper {
  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/form.html#FormHelper::hidden
  */
 	public function hidden($fieldName, $options = array()) {
-		$secure = true;
+		$options += array('required' => false, 'secure' => true);
+
+		$secure = $options['secure'];
+		unset($options['secure']);
 
-		if (isset($options['secure'])) {
-			$secure = $options['secure'];
-			unset($options['secure']);
-		}
 		$options = $this->_initInputField($fieldName, array_merge(
 			$options, array('secure' => self::SECURE_SKIP)
 		));
 
-		if ($secure && $secure !== self::SECURE_SKIP) {
+		if ($secure === true) {
 			$this->_secure(true, null, '' . $options['value']);
 		}
 
@@ -2012,12 +2011,8 @@ class FormHelper extends AppHelper {
 			$tag = 'selectstart';
 		}
 
-		if ($tag !== 'checkboxmultiplestart' &&
-			!isset($attributes['required']) &&
-			empty($attributes['disabled']) &&
-			$this->_introspectModel($this->model(), 'validates', $this->field())
-		) {
-			$attributes['required'] = true;
+		if ($tag === 'checkboxmultiplestart') {
+			unset($attributes['required']);
 		}
 
 		if (!empty($tag) || isset($template)) {
@@ -2847,15 +2842,21 @@ class FormHelper extends AppHelper {
 		if ($this->tagIsInvalid() !== false) {
 			$result = $this->addClass($result, 'form-error');
 		}
-		if (!empty($result['disabled']) || $secure === self::SECURE_SKIP) {
+
+		if (!empty($result['disabled'])) {
 			return $result;
 		}
+
 		if (!isset($result['required']) &&
 			$this->_introspectModel($this->model(), 'validates', $this->field())
 		) {
 			$result['required'] = true;
 		}
 
+		if ($secure === self::SECURE_SKIP) {
+			return $result;
+		}
+
 		$this->_secure($secure, $this->_secureFieldName($options));
 		return $result;
 	}