Yii DynamicFormModel

DynamicFormModel.php

<?php
/**
 * Created by JetBrains PhpStorm.
 * User: bazilio
 * Date: 7/24/12
 * Time: 12:41 PM
 */
class DynamicFormModel extends CFormModel
{

	private $_dynamicData = array();
	private $_dynamicFields = array();
	private $_dynamicRules = array();
	private $_dynamicLabels = array();
	private $_dynamicItems = array();
	private $_dynamicRelations = array();

	public function rules()
	{
		return $this->_dynamicRules;
	}

	public function attributeNames()
	{
		return array_merge(
			parent::attributeNames(),
			array_keys($this->_dynamicFields)
		);
	}

	public function attributeLabels()
	{
		return $this->_dynamicLabels;
	}

	/**
	 * Returns the value for a dynamic attribute, if not, falls back to parent
	 * method
	 *
	 * @param type $name
	 * @return type
	 */
	public function __get($name)
	{
		if (!empty($this->_dynamicFields[$name])) {
			if (isset($this->_dynamicData[$name])) {
				return $this->_dynamicData[$name];
			} else {
				return null;
			}
		} else {
			return parent::__get($name);
		}
	}

	public function getType($name)
	{
		if (isset($this->_dynamicFields[$name])) return $this->_dynamicFields[$name];
		return null;
	}

	/**
	 * @param $name
	 * @param $val
	 * @param $label
	 * @param $rules array(array('attribute','validator'))
	 */
	public function addAttribute($name, $val, $type = 'text', $label = null, $rules = null, $items = null)
	{
		$this->_dynamicFields[$name] = $type;
		$this->_dynamicData[$name] = $val;
		if ($rules) {
			$this->_dynamicRules[] = $rules;
		}
		if ($label) {
			$this->_dynamicLabels[$name] = $label;
		}
		if ($items) {
			$this->_dynamicItems[$name] = $items;
		}
	}

	public function setAttributes($values, $safeOnly = true)
	{
		if (!is_array($values))
			return;
		$attributes = array_flip($safeOnly ? $this->getSafeAttributeNames() : $this->attributeNames());
		foreach ($values as $name => $value) {
			if (isset($attributes[$name]) && isset($this->$name))
				$this->$name = $value;
			else if (isset($this->_dynamicFields[$name])) {
				$this->_dynamicData[$name] = $value;
			}
			else if ($safeOnly)
				$this->onUnsafeAttribute($name, $value);
		}
	}

	public function getAttributes($names = null)
	{
		$values = array();
		foreach ($this->attributeNames() as $k => $name)
			$values[$name] = $this->$name;

		if (is_array($names)) {
			$values2 = array();
			foreach ($names as $name => $v) {
				$values2[$name] = isset($values[$name]) ? $values[$name] : null;
				if (!$values2[$name])
					$values2[$name] = isset($this->_dynamicData[$name]) ? $this->_dynamicData[$name] : null;
			}
			return $values2;
		}
		else
			return $values;
	}

	public function getItems($name)
	{
		return (!empty($this->_dynamicItems[$name])) ? $this->_dynamicItems[$name] : array();
	}

	public function addRelation($name,$relation) {
		$this->_dynamicRelations[$name] = $relation;
	}

	public function getRelations() {
		return $this->_dynamicRelations;
	}
}