Allow for the use of nested rules

readme.md

@@ -103,3 +103,30 @@ Now, just inject this object into your controller or application service, and ca
 ```php
 $this->registrationForm->validate(Input::all());
 ```
+
+## Optional
+
+You can also create a set of nested rules like this:
+
+```php
+	/**
+	 * Validation rules for registering
+	 *
+	 * @var array
+	 */
+	protected $rules = [
+		'store' => [
+			'username' => 'required',
+			'email'    => 'required|unique:users',
+		],
+		'update' => [
+			'username' => 'required',
+		]
+	];
+```
+
+To call the set of rules you want to use, simply set a context on the validator before calling `validate()`
+
+```php
+	$this->registrationForm->setContext('store')->validate(Input::all());
+```

spec/Laracasts/Validation/FormValidatorContextSpec.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace spec\Laracasts\Validation;
+
+use Laracasts\Validation\FactoryInterface;
+use Laracasts\Validation\ValidatorInterface;
+use PhpSpec\ObjectBehavior;
+use Prophecy\Argument;
+
+class FormValidatorContextSpec extends ObjectBehavior
+{
+	function let(FactoryInterface $validatorFactory)
+	{
+		$this->beAnInstanceOf('spec\Laracasts\Validation\AnotherExampleValidator');
+		$this->beConstructedWith($validatorFactory);
+	}
+
+	function it_allows_setting_of_a_context()
+	{
+		$this->setContext('store');
+
+		$this->getContext()->shouldReturn('store');
+	}
+
+	function it_returns_correct_validation_rules()
+	{
+		$this->setContext('store');
+
+		$this->getValidationRules()->shouldReturn(array('username' => 'required'));
+	}
+
+}
+
+class AnotherExampleValidator extends \Laracasts\Validation\FormValidator {
+	protected $rules = [
+		'store' => ['username' => 'required']
+	];
+}

src/Laracasts/Validation/FormValidator.php

@@ -5,6 +5,11 @@
 
 abstract class FormValidator {
 
+	/**
+	 * @var string
+	 */
+	protected $context;
+
 	/**
 	 * @var ValidatorFactory
 	 */
@@ -58,9 +63,28 @@ public function validate($formData)
 	 */
 	public function getValidationRules()
 	{
+		if( ! is_null($this->context) && array_key_exists($this->context, $this->rules)) return $this->rules[$this->context];
+
 		return $this->rules;
 	}
 
+	/**
+	 * @return FormValidator
+	 */
+	public function setContext($context)
+	{
+		$this->context = $context;
+		return $this;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getContext()
+	{
+		return $this->context;
+	}
+
 	/**
 	 * @return mixed
 	 */