Improve date and time handling on "Max" rule

README.md

@@ -1406,6 +1406,13 @@ Also accepts dates:
 v::date()->max('2012-01-01')->validate('2010-01-01'); //true
 ```
 
+Also date intervals:
+
+```php
+// Same of minimum age validation
+v::date()->max('-18 years')->validate('1988-09-09'); //true
+```
+
 `true` may be passed as a parameter to indicate that inclusive
 values must be used.
 

library/Exceptions/MaxException.php

@@ -7,12 +7,12 @@ class MaxException extends ValidationException
 
     public static $defaultTemplates = array(
         self::MODE_DEFAULT => array(
-            self::STANDARD => '{{name}} must be lower than {{maxValue}}',
-            self::INCLUSIVE => '{{name}} must be lower than or equals {{maxValue}}',
+            self::STANDARD => '{{name}} must be lower than {{interval}}',
+            self::INCLUSIVE => '{{name}} must be lower than or equals {{interval}}',
         ),
         self::MODE_NEGATIVE => array(
-            self::STANDARD => '{{name}} must not be lower than {{maxValue}}',
-            self::INCLUSIVE => '{{name}} must not be lower than or equals {{maxValue}}',
+            self::STANDARD => '{{name}} must not be lower than {{interval}}',
+            self::INCLUSIVE => '{{name}} must not be lower than or equals {{interval}}',
         ),
     );
 

library/Rules/Max.php

@@ -1,23 +1,14 @@
 <?php
 namespace Respect\Validation\Rules;
 
-class Max extends AbstractRule
+class Max extends AbstractInterval
 {
-    public $maxValue;
-    public $inclusive;
-
-    public function __construct($maxValue, $inclusive = false)
-    {
-        $this->maxValue = $maxValue;
-        $this->inclusive = $inclusive;
-    }
-
     public function validate($input)
     {
         if ($this->inclusive) {
-            return $input <= $this->maxValue;
-        } else {
-            return $input < $this->maxValue;
+            return $this->filterInterval($input) <= $this->filterInterval($this->interval);
         }
+
+        return $this->filterInterval($input) < $this->filterInterval($this->interval);
     }
 }

tests/Rules/MaxTest.php

@@ -33,6 +33,10 @@ class MaxTest extends \PHPUnit_Framework_TestCase
             array(200, false, -200),
             array(200, true, 200),
             array(200, false, 0),
+            array('-18 years', true, '1988-09-09'),
+            array('z', true, 'z'),
+            array('z', false, 'y'),
+            array('tomorrow', true, 'now'),
         );
     }