pictcode / lib / Cake / View / Helper / SessionHelper.php @ 7b85fad4
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| 1 | <?php
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| 2 | /**
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| 3 |  * Session Helper provides access to the Session in the Views.
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| 4 |  *
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| 5 |  * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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| 6 |  * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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| 7 |  *
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| 8 |  * Licensed under The MIT License
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| 9 |  * For full copyright and license information, please see the LICENSE.txt
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| 10 |  * Redistributions of files must retain the above copyright notice.
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| 11 |  *
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| 12 |  * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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| 13 |  * @link          http://cakephp.org CakePHP(tm) Project
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| 14 |  * @package       Cake.View.Helper
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| 15 |  * @since         CakePHP(tm) v 1.1.7.3328
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| 16 |  * @license       http://www.opensource.org/licenses/mit-license.php MIT License
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| 17 |  */
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| 18 |  | 
| 19 | App::uses('AppHelper', 'View/Helper'); | 
| 20 | App::uses('CakeSession', 'Model/Datasource'); | 
| 21 |  | 
| 22 | /**
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| 23 |  * Session Helper.
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| 24 |  *
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| 25 |  * Session reading from the view.
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| 26 |  *
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| 27 |  * @package       Cake.View.Helper
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| 28 |  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/session.html
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| 29 |  */
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| 30 | class SessionHelper extends AppHelper { | 
| 31 |  | 
| 32 | /**
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| 33 |  * Reads a session value for a key or returns values for all keys.
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| 34 |  *
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| 35 |  * In your view: `$this->Session->read('Controller.sessKey');`
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| 36 |  * Calling the method without a param will return all session vars
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| 37 |  *
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| 38 |  * @param string $name the name of the session key you want to read
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| 39 |  * @return mixed values from the session vars
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| 40 |  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/session.html#SessionHelper::read
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| 41 |  */
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| 42 | public function read($name = null) { | 
| 43 | return CakeSession::read($name); | 
| 44 | } | 
| 45 |  | 
| 46 | /**
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| 47 |  * Reads and deletes a session value for a key.
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| 48 |  *
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| 49 |  * In your view: `$this->Session->consume('Controller.sessKey');`
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| 50 |  *
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| 51 |  * @param string $name the name of the session key you want to read
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| 52 |  * @return mixed values from the session vars
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| 53 |  */
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| 54 | public function consume($name) { | 
| 55 | return CakeSession::consume($name); | 
| 56 | } | 
| 57 |  | 
| 58 | /**
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| 59 |  * Checks if a session key has been set.
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| 60 |  *
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| 61 |  * In your view: `$this->Session->check('Controller.sessKey');`
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| 62 |  *
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| 63 |  * @param string $name Session key to check.
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| 64 |  * @return bool
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| 65 |  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/session.html#SessionHelper::check
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| 66 |  */
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| 67 | public function check($name) { | 
| 68 | return CakeSession::check($name); | 
| 69 | } | 
| 70 |  | 
| 71 | /**
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| 72 |  * Returns last error encountered in a session
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| 73 |  *
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| 74 |  * In your view: `$this->Session->error();`
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| 75 |  *
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| 76 |  * @return string last error
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| 77 |  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/session.html#displaying-notifications-or-flash-messages
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| 78 |  */
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| 79 | public function error() { | 
| 80 | return CakeSession::error(); | 
| 81 | } | 
| 82 |  | 
| 83 | /**
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| 84 |  * Used to render the message set in Controller::Session::setFlash()
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| 85 |  *
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| 86 |  * In your view: $this->Session->flash('somekey');
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| 87 |  * Will default to flash if no param is passed
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| 88 |  *
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| 89 |  * You can pass additional information into the flash message generation. This allows you
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| 90 |  * to consolidate all the parameters for a given type of flash message into the view.
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| 91 |  *
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| 92 |  * ```
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| 93 |  * echo $this->Session->flash('flash', array('params' => array('class' => 'new-flash')));
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| 94 |  * ```
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| 95 |  *
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| 96 |  * The above would generate a flash message with a custom class name. Using $attrs['params'] you
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| 97 |  * can pass additional data into the element rendering that will be made available as local variables
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| 98 |  * when the element is rendered:
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| 99 |  *
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| 100 |  * ```
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| 101 |  * echo $this->Session->flash('flash', array('params' => array('name' => $user['User']['name'])));
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| 102 |  * ```
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| 103 |  *
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| 104 |  * This would pass the current user's name into the flash message, so you could create personalized
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| 105 |  * messages without the controller needing access to that data.
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| 106 |  *
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| 107 |  * Lastly you can choose the element that is rendered when creating the flash message. Using
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| 108 |  * custom elements allows you to fully customize how flash messages are generated.
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| 109 |  *
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| 110 |  * ```
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| 111 |  * echo $this->Session->flash('flash', array('element' => 'my_custom_element'));
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| 112 |  * ```
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| 113 |  *
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| 114 |  * If you want to use an element from a plugin for rendering your flash message you can do that using the
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| 115 |  * plugin param:
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| 116 |  *
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| 117 |  * ```
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| 118 |  * echo $this->Session->flash('flash', array(
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| 119 |  *                'element' => 'my_custom_element',
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| 120 |  *                'params' => array('plugin' => 'my_plugin')
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| 121 |  * ));
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| 122 |  * ```
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| 123 |  *
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| 124 |  * @param string $key The [Message.]key you are rendering in the view.
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| 125 |  * @param array $attrs Additional attributes to use for the creation of this flash message.
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| 126 |  *    Supports the 'params', and 'element' keys that are used in the helper.
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| 127 |  * @return string
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| 128 |  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/session.html#SessionHelper::flash
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| 129 |  * @deprecated 3.0.0 Since 2.7, use FlashHelper::render() instead.
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| 130 |  */
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| 131 | public function flash($key = 'flash', $attrs = array()) { | 
| 132 | $out = false; | 
| 133 |  | 
| 134 | if (CakeSession::check('Message.' . $key)) { | 
| 135 | $flash = CakeSession::read('Message.' . $key); | 
| 136 | CakeSession::delete('Message.' . $key); | 
| 137 | $message = $flash['message']; | 
| 138 | unset($flash['message']); | 
| 139 |  | 
| 140 | if (!empty($attrs)) { | 
| 141 | $flash = array_merge($flash, $attrs); | 
| 142 | } | 
| 143 |  | 
| 144 | if ($flash['element'] === 'default') { | 
| 145 | $class = 'message'; | 
| 146 | if (!empty($flash['params']['class'])) { | 
| 147 | $class = $flash['params']['class']; | 
| 148 | } | 
| 149 | $out = '<div id="' . $key . 'Message" class="' . $class . '">' . $message . '</div>'; | 
| 150 | } elseif (!$flash['element']) { | 
| 151 | $out = $message; | 
| 152 |                         } else {
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| 153 | $options = array(); | 
| 154 | if (isset($flash['params']['plugin'])) { | 
| 155 | $options['plugin'] = $flash['params']['plugin']; | 
| 156 | } | 
| 157 | $tmpVars = $flash['params']; | 
| 158 | $tmpVars['message'] = $message; | 
| 159 | $tmpVars['key'] = $key; | 
| 160 | $out = $this->_View->element($flash['element'], $tmpVars, $options); | 
| 161 | } | 
| 162 | } | 
| 163 | return $out; | 
| 164 | } | 
| 165 |  | 
| 166 | /**
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| 167 |  * Used to check is a session is valid in a view
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| 168 |  *
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| 169 |  * @return bool
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| 170 |  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/session.html#SessionHelper::valid
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| 171 |  */
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| 172 | public function valid() { | 
| 173 | return CakeSession::valid(); | 
| 174 | } | 
| 175 |  | 
| 176 | } |