Implemented fallback_value option for Input filter

zendframework · Oct 10, 2012 · 1c6d74f · 1c6d74f
1 parent 8eff238
commit 1c6d74f
Show file tree

Hide file tree

Showing 2 changed files with 37 additions and 1 deletion.
diff --git a/library/Zend/InputFilter/Factory.php b/library/Zend/InputFilter/Factory.php
@@ -158,6 +158,9 @@ public function createInput($inputSpecification)
                         $input->setRequired(!$value);
                     }
                     break;
+                case 'fallback_value':
+                    $input->setFallbackValue($value);
+                    break;
                 case 'filters':
                     if ($value instanceof FilterChain) {
                         $input->setFilterChain($value);

diff --git a/library/Zend/InputFilter/Input.php b/library/Zend/InputFilter/Input.php
@@ -65,6 +65,11 @@ class Input implements InputInterface
      */
     protected $value;
 
+    /**
+     * @var mixed
+     */
+    protected $fallbackValue;
+
     public function __construct($name = null)
     {
         $this->name = $name;
@@ -151,6 +156,16 @@ public function setValue($value)
         return $this;
     }
 
+    /**
+     * @param  mixed $value
+     * @return Input
+     */
+    public function setFallbackValue($value)
+    {
+        $this->fallbackValue = $value;
+        return $this;
+    }
+
     /**
      * @return boolean
      */
@@ -230,6 +245,14 @@ public function getValue()
         return $filter->filter($this->value);
     }
 
+    /**
+     * @return mixed
+     */
+    public function getFallbackValue()
+    {
+        return $this->fallbackValue;
+    }
+
     /**
      * @param  InputInterface $input
      * @return Input
@@ -260,7 +283,13 @@ public function isValid($context = null)
         $this->injectNotEmptyValidator();
         $validator = $this->getValidatorChain();
         $value     = $this->getValue();
-        return $validator->isValid($value, $context);
+        $result    = $validator->isValid($value, $context);
+        if (!$result && $fallbackValue = $this->getFallbackValue()) {
+            $this->setValue($fallbackValue);
+            $result = true;
+        }
+
+        return $result;
     }
 
     /**
@@ -272,6 +301,10 @@ public function getMessages()
             return (array) $this->errorMessage;
         }
 
+        if ($this->getFallbackValue()) {
+            return array();
+        }
+
         $validator = $this->getValidatorChain();
         return $validator->getMessages();
     }