Accept path for NamedFormItems

This allows multiple forms in the same page by allowing prefixes in form elements items.
You could use "form1.input1" for an input name for instance and only input1 will be used to
read and write the values to the model instance.

src/SleepingOwl/Admin/FormItems/NamedFormItem.php

@@ -5,15 +5,46 @@
 abstract class NamedFormItem extends BaseFormItem
 {
 
+	protected $path;
 	protected $name;
+	protected $attribute;
 	protected $label;
 	protected $defaultValue;
 	protected $readonly;
 
-	function __construct($name, $label = null)
+	function __construct($path, $label = null)
 	{
 		$this->label = $label;
-		$this->name = $name;
+		$parts = explode(".", $path);
+		if (count($parts) > 1) {
+			$this->path = $path;
+			$this->name = $parts[0] . "[" . implode("][", array_slice($parts, 1)) . "]";
+			$this->attribute = implode(".", array_slice(explode(".", $path), -1, 1));
+		} else {
+			$this->path = $path;
+			$this->name = $path;
+			$this->attribute = $path;
+		}
+	}
+
+	public function path($path = null)
+	{
+		if (is_null($path))
+		{
+			return $this->path;
+		}
+		$this->path = $path;
+		return $path;
+	}
+
+	public function attribute($attribute = null)
+	{
+		if (is_null($attribute))
+		{
+			return $this->attribute;
+		}
+		$this->attribute = $attribute;
+		return $attribute;
 	}
 
 	public function name($name = null)
@@ -40,6 +71,7 @@ public function getParams()
 	{
 		return parent::getParams() + [
 			'name'      => $this->name(),
+			'attribute' => $this->attribute(),
 			'label'     => $this->label(),
 			'readonly'  => $this->readonly(),
 			'value'     => $this->value()
@@ -71,16 +103,16 @@ public function readonly($readonly = null)
 	public function value()
 	{
 		$instance = $this->instance();
-		if ( ! is_null($value = old($this->name())))
+		if ( ! is_null($value = old($this->path())))
 		{
 			return $value;
 		}
 		$input = Input::all();
-		if (array_key_exists($this->name, $input))
+		if (($value = array_get($input, $this->path())) !== null)
 		{
-			return Input::get($this->name());
+			return $value; //Input::get($this->name());
 		}
-		if ( ! is_null($instance) && ! is_null($value = $instance->getAttribute($this->name())))
+		if ( ! is_null($instance) && ! is_null($value = $instance->getAttribute($this->attribute())))
 		{
 			return $value;
 		}
@@ -89,12 +121,15 @@ public function value()
 
 	public function save()
 	{
-		$name = $this->name();
-		if ( ! Input::has($name))
+		//$name = $this->name();
+		$attribute = $this->attribute();
+		if (Input::get($this->path()) == null)
 		{
-			Input::merge([$name => null]);
+			$value = null; //Input::merge(([$name => null]);
+		} else {
+			$value = $this->value();
 		}
-		$this->instance()->$name = $this->value();
+		$this->instance()->$attribute = $value;
 	}
 
 	public function required()