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257 lines
6.0 KiB
257 lines
6.0 KiB
5 years ago
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<?php
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if (!defined('__TYPECHO_ROOT_DIR__')) exit;
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/**
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* 表单处理帮手
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*
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* @category typecho
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* @package Widget
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* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
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* @license GNU General Public License 2.0
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* @version $Id$
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*/
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/**
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* 表单处理帮手
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*
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* @category typecho
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* @package Widget
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* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
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* @license GNU General Public License 2.0
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*/
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class Typecho_Widget_Helper_Form extends Typecho_Widget_Helper_Layout
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{
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/** 表单post方法 */
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const POST_METHOD = 'post';
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/** 表单get方法 */
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const GET_METHOD = 'get';
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/** 标准编码方法 */
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const STANDARD_ENCODE = 'application/x-www-form-urlencoded';
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/** 混合编码 */
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const MULTIPART_ENCODE = 'multipart/form-data';
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/** 文本编码 */
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const TEXT_ENCODE= 'text/plain';
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/**
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* 输入元素列表
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*
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* @access private
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* @var array
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*/
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private $_inputs = array();
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/**
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* 构造函数,设置基本属性
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*
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* @access public
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*/
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public function __construct($action = NULL, $method = self::GET_METHOD, $enctype = self::STANDARD_ENCODE)
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{
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/** 设置表单标签 */
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parent::__construct('form');
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/** 关闭自闭合 */
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$this->setClose(false);
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/** 设置表单属性 */
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$this->setAction($action);
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$this->setMethod($method);
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$this->setEncodeType($enctype);
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}
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/**
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* 设置表单编码方案
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*
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* @access public
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* @param string $enctype 编码方法
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* @return Typecho_Widget_Helper_Form
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*/
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public function setEncodeType($enctype)
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{
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$this->setAttribute('enctype', $enctype);
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return $this;
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}
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/**
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* 增加输入元素
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*
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* @access public
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* @param Typecho_Widget_Helper_Form_Element $input 输入元素
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* @return Typecho_Widget_Helper_Form
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*/
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public function addInput(Typecho_Widget_Helper_Form_Element $input)
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{
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$this->_inputs[$input->name] = $input;
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$this->addItem($input);
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return $this;
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}
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/**
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* 获取输入项
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*
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* @access public
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* @param string $name 输入项名称
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* @return mixed
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*/
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public function getInput($name)
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{
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return $this->_inputs[$name];
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}
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/**
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* 获取所有输入项的提交值
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*
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* @access public
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* @return array
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*/
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public function getAllRequest()
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{
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$result = array();
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$source = (self::POST_METHOD == $this->getAttribute('method')) ? $_POST : $_GET;
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foreach ($this->_inputs as $name => $input) {
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$result[$name] = isset($source[$name]) ? $source[$name] : NULL;
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}
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return $result;
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}
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/**
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* 设置表单提交方法
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*
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* @access public
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* @param string $method 表单提交方法
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* @return Typecho_Widget_Helper_Form
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*/
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public function setMethod($method)
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{
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$this->setAttribute('method', $method);
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return $this;
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}
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/**
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* 设置表单提交目的
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*
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* @access public
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* @param string $action 表单提交目的
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* @return Typecho_Widget_Helper_Form
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*/
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public function setAction($action)
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{
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$this->setAttribute('action', $action);
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return $this;
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}
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/**
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* 获取此表单的所有输入项固有值
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*
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* @access public
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* @return array
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*/
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public function getValues()
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{
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$values = array();
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foreach ($this->_inputs as $name => $input) {
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$values[$name] = $input->value;
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}
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return $values;
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}
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/**
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* 获取此表单的所有输入项
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*
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* @access public
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* @return array
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*/
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public function getInputs()
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{
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return $this->_inputs;
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}
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/**
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* 获取提交数据源
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*
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* @access public
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* @param array $params 数据参数集
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* @return array
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*/
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public function getParams(array $params)
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{
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$result = array();
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$source = (self::POST_METHOD == $this->getAttribute('method')) ? $_POST : $_GET;
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foreach ($params as $param) {
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$result[$param] = isset($source[$param]) ? $source[$param] : NULL;
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}
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return $result;
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}
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/**
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* 验证表单
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*
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* @access public
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* @return mixed
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*/
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public function validate()
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{
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$validator = new Typecho_Validate();
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$rules = array();
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foreach ($this->_inputs as $name => $input) {
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$rules[$name] = $input->rules;
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}
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$id = md5(implode('"', array_keys($this->_inputs)));
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/** 表单值 */
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$formData = $this->getParams(array_keys($rules));
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$error = $validator->run($formData, $rules);
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if ($error) {
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/** 利用session记录错误 */
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Typecho_Cookie::set('__typecho_form_message_' . $id, Json::encode($error));
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/** 利用session记录表单值 */
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Typecho_Cookie::set('__typecho_form_record_' . $id, Json::encode($formData));
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}
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return $error;
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}
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/**
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* 显示表单
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*
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* @access public
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* @return void
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*/
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public function render()
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{
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$id = md5(implode('"', array_keys($this->_inputs)));
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$record = Typecho_Cookie::get('__typecho_form_record_' . $id);
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$message = Typecho_Cookie::get('__typecho_form_message_' . $id);
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/** 恢复表单值 */
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if (!empty($record)) {
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$record = Json::decode($record, true);
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$message = Json::decode($message, true);
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foreach ($this->_inputs as $name => $input) {
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$input->value(isset($record[$name]) ? $record[$name] : $input->value);
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/** 显示错误消息 */
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if (isset($message[$name])) {
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$input->message($message[$name]);
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}
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}
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Typecho_Cookie::delete('__typecho_form_record_' . $id);
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}
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parent::render();
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Typecho_Cookie::delete('__typecho_form_message_' . $id);
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}
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}
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