pictcode_admin / lib / Cake / View / View.php @ 5ad38a95
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1 | 5ad38a95 | spyder1211 | <?php
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2 | /**
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3 | * Methods for displaying presentation data in the view.
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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
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15 | * @since CakePHP(tm) v 0.10.0.1076
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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('HelperCollection', 'View'); |
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20 | App::uses('AppHelper', 'View/Helper'); |
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21 | App::uses('Router', 'Routing'); |
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22 | App::uses('ViewBlock', 'View'); |
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23 | App::uses('CakeEvent', 'Event'); |
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24 | App::uses('CakeEventManager', 'Event'); |
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25 | App::uses('CakeResponse', 'Network'); |
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26 | |||
27 | /**
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28 | * View, the V in the MVC triad. View interacts with Helpers and view variables passed
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29 | * in from the controller to render the results of the controller action. Often this is HTML,
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30 | * but can also take the form of JSON, XML, PDF's or streaming files.
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31 | *
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32 | * CakePHP uses a two-step-view pattern. This means that the view content is rendered first,
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33 | * and then inserted into the selected layout. This also means you can pass data from the view to the
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34 | * layout using `$this->set()`
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35 | *
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36 | * Since 2.1, the base View class also includes support for themes by default. Theme views are regular
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37 | * view files that can provide unique HTML and static assets. If theme views are not found for the
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38 | * current view the default app view files will be used. You can set `$this->theme = 'mytheme'`
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39 | * in your Controller to use the Themes.
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40 | *
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41 | * Example of theme path with `$this->theme = 'SuperHot';` Would be `app/View/Themed/SuperHot/Posts`
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42 | *
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43 | * @package Cake.View
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44 | * @property CacheHelper $Cache
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45 | * @property FormHelper $Form
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46 | * @property HtmlHelper $Html
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47 | * @property JsHelper $Js
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48 | * @property NumberHelper $Number
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49 | * @property PaginatorHelper $Paginator
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50 | * @property RssHelper $Rss
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51 | * @property SessionHelper $Session
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52 | * @property TextHelper $Text
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53 | * @property TimeHelper $Time
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54 | * @property ViewBlock $Blocks
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55 | */
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56 | class View extends Object { |
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57 | |||
58 | /**
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59 | * Helpers collection
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60 | *
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61 | * @var HelperCollection
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62 | */
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63 | public $Helpers; |
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64 | |||
65 | /**
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66 | * ViewBlock instance.
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67 | *
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68 | * @var ViewBlock
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69 | */
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70 | public $Blocks; |
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71 | |||
72 | /**
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73 | * Name of the plugin.
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74 | *
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75 | * @link http://manual.cakephp.org/chapter/plugins
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76 | * @var string
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77 | */
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78 | public $plugin = null; |
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79 | |||
80 | /**
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81 | * Name of the controller.
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82 | *
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83 | * @var string
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84 | */
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85 | public $name = null; |
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86 | |||
87 | /**
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88 | * Current passed params
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89 | *
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90 | * @var mixed
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91 | */
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92 | public $passedArgs = array(); |
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93 | |||
94 | /**
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95 | * An array of names of built-in helpers to include.
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96 | *
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97 | * @var mixed
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98 | */
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99 | public $helpers = array(); |
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100 | |||
101 | /**
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102 | * Path to View.
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103 | *
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104 | * @var string
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105 | */
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106 | public $viewPath = null; |
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107 | |||
108 | /**
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109 | * Variables for the view
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110 | *
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111 | * @var array
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112 | */
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113 | public $viewVars = array(); |
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114 | |||
115 | /**
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116 | * Name of view to use with this View.
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117 | *
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118 | * @var string
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119 | */
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120 | public $view = null; |
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121 | |||
122 | /**
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123 | * Name of layout to use with this View.
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124 | *
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125 | * @var string
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126 | */
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127 | public $layout = 'default'; |
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128 | |||
129 | /**
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130 | * Path to Layout.
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131 | *
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132 | * @var string
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133 | */
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134 | public $layoutPath = null; |
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135 | |||
136 | /**
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137 | * Turns on or off CakePHP's conventional mode of applying layout files. On by default.
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138 | * Setting to off means that layouts will not be automatically applied to rendered views.
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139 | *
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140 | * @var bool
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141 | */
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142 | public $autoLayout = true; |
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143 | |||
144 | /**
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145 | * File extension. Defaults to CakePHP's template ".ctp".
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146 | *
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147 | * @var string
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148 | */
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149 | public $ext = '.ctp'; |
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150 | |||
151 | /**
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152 | * Sub-directory for this view file. This is often used for extension based routing.
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153 | * Eg. With an `xml` extension, $subDir would be `xml/`
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154 | *
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155 | * @var string
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156 | */
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157 | public $subDir = null; |
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158 | |||
159 | /**
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160 | * Theme name.
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161 | *
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162 | * @var string
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163 | */
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164 | public $theme = null; |
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165 | |||
166 | /**
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167 | * Used to define methods a controller that will be cached.
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168 | *
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169 | * @see Controller::$cacheAction
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170 | * @var mixed
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171 | */
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172 | public $cacheAction = false; |
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173 | |||
174 | /**
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175 | * Holds current errors for the model validation.
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176 | *
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177 | * @var array
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178 | */
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179 | public $validationErrors = array(); |
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180 | |||
181 | /**
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182 | * True when the view has been rendered.
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183 | *
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184 | * @var bool
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185 | */
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186 | public $hasRendered = false; |
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187 | |||
188 | /**
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189 | * List of generated DOM UUIDs.
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190 | *
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191 | * @var array
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192 | */
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193 | public $uuids = array(); |
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194 | |||
195 | /**
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196 | * An instance of a CakeRequest object that contains information about the current request.
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197 | * This object contains all the information about a request and several methods for reading
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198 | * additional information about the request.
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199 | *
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200 | * @var CakeRequest
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201 | */
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202 | public $request; |
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203 | |||
204 | /**
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205 | * Reference to the Response object
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206 | *
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207 | * @var CakeResponse
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208 | */
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209 | public $response; |
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210 | |||
211 | /**
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212 | * The Cache configuration View will use to store cached elements. Changing this will change
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213 | * the default configuration elements are stored under. You can also choose a cache config
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214 | * per element.
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215 | *
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216 | * @var string
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217 | * @see View::element()
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218 | */
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219 | public $elementCache = 'default'; |
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220 | |||
221 | /**
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222 | * Element cache settings
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223 | *
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224 | * @var array
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225 | * @see View::_elementCache();
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226 | * @see View::_renderElement
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227 | */
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228 | public $elementCacheSettings = array(); |
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229 | |||
230 | /**
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231 | * List of variables to collect from the associated controller.
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232 | *
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233 | * @var array
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234 | */
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235 | protected $_passedVars = array( |
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236 | 'viewVars', 'autoLayout', 'ext', 'helpers', 'view', 'layout', 'name', 'theme', |
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237 | 'layoutPath', 'viewPath', 'request', 'plugin', 'passedArgs', 'cacheAction' |
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238 | ); |
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239 | |||
240 | /**
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241 | * Scripts (and/or other <head /> tags) for the layout.
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242 | *
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243 | * @var array
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244 | */
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245 | protected $_scripts = array(); |
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246 | |||
247 | /**
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248 | * Holds an array of paths.
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249 | *
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250 | * @var array
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251 | */
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252 | protected $_paths = array(); |
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253 | |||
254 | /**
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255 | * Holds an array of plugin paths.
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256 | *
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257 | * @var array
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258 | */
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259 | protected $_pathsForPlugin = array(); |
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260 | |||
261 | /**
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262 | * The names of views and their parents used with View::extend();
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263 | *
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264 | * @var array
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265 | */
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266 | protected $_parents = array(); |
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267 | |||
268 | /**
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269 | * The currently rendering view file. Used for resolving parent files.
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270 | *
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271 | * @var string
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272 | */
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273 | protected $_current = null; |
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274 | |||
275 | /**
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276 | * Currently rendering an element. Used for finding parent fragments
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277 | * for elements.
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278 | *
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279 | * @var string
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280 | */
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281 | protected $_currentType = ''; |
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282 | |||
283 | /**
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284 | * Content stack, used for nested templates that all use View::extend();
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285 | *
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286 | * @var array
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287 | */
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288 | protected $_stack = array(); |
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289 | |||
290 | /**
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291 | * Instance of the CakeEventManager this View object is using
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292 | * to dispatch inner events. Usually the manager is shared with
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293 | * the controller, so it it possible to register view events in
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294 | * the controller layer.
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295 | *
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296 | * @var CakeEventManager
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297 | */
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298 | protected $_eventManager = null; |
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299 | |||
300 | /**
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301 | * Whether the event manager was already configured for this object
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302 | *
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303 | * @var bool
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304 | */
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305 | protected $_eventManagerConfigured = false; |
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306 | |||
307 | /**
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308 | * Constant for view file type 'view'
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309 | *
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310 | * @var string
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311 | */
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312 | const TYPE_VIEW = 'view'; |
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313 | |||
314 | /**
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315 | * Constant for view file type 'element'
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316 | *
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317 | * @var string
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318 | */
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319 | const TYPE_ELEMENT = 'element'; |
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320 | |||
321 | /**
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322 | * Constant for view file type 'layout'
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323 | *
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324 | * @var string
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325 | */
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326 | const TYPE_LAYOUT = 'layout'; |
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327 | |||
328 | /**
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329 | * Constructor
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330 | *
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331 | * @param Controller $controller A controller object to pull View::_passedVars from.
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332 | */
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333 | public function __construct(Controller $controller = null) { |
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334 | if (is_object($controller)) { |
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335 | $count = count($this->_passedVars); |
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336 | for ($j = 0; $j < $count; $j++) { |
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337 | $var = $this->_passedVars[$j]; |
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338 | $this->{$var} = $controller->{$var}; |
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339 | } |
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340 | $this->_eventManager = $controller->getEventManager(); |
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341 | } |
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342 | if (empty($this->request) && !($this->request = Router::getRequest(true))) { |
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343 | $this->request = new CakeRequest(null, false); |
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344 | $this->request->base = ''; |
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345 | $this->request->here = $this->request->webroot = '/'; |
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346 | } |
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347 | if (is_object($controller) && isset($controller->response)) { |
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348 | $this->response = $controller->response; |
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349 | } else {
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350 | $this->response = new CakeResponse(); |
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351 | } |
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352 | $this->Helpers = new HelperCollection($this); |
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353 | $this->Blocks = new ViewBlock(); |
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354 | $this->loadHelpers();
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355 | parent::__construct();
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356 | } |
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357 | |||
358 | /**
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359 | * Returns the CakeEventManager manager instance that is handling any callbacks.
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360 | * You can use this instance to register any new listeners or callbacks to the
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361 | * controller events, or create your own events and trigger them at will.
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362 | *
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363 | * @return CakeEventManager
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364 | */
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365 | public function getEventManager() { |
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366 | if (empty($this->_eventManager)) { |
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367 | $this->_eventManager = new CakeEventManager(); |
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368 | } |
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369 | if (!$this->_eventManagerConfigured) { |
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370 | $this->_eventManager->attach($this->Helpers); |
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371 | $this->_eventManagerConfigured = true; |
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372 | } |
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373 | return $this->_eventManager; |
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374 | } |
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375 | |||
376 | /**
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377 | * Renders a piece of PHP with provided parameters and returns HTML, XML, or any other string.
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378 | *
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379 | * This realizes the concept of Elements, (or "partial layouts") and the $params array is used to send
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380 | * data to be used in the element. Elements can be cached improving performance by using the `cache` option.
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381 | *
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382 | * @param string $name Name of template file in the/app/View/Elements/ folder,
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383 | * or `MyPlugin.template` to use the template element from MyPlugin. If the element
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384 | * is not found in the plugin, the normal view path cascade will be searched.
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385 | * @param array $data Array of data to be made available to the rendered view (i.e. the Element)
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386 | * @param array $options Array of options. Possible keys are:
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387 | * - `cache` - Can either be `true`, to enable caching using the config in View::$elementCache. Or an array
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388 | * If an array, the following keys can be used:
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389 | * - `config` - Used to store the cached element in a custom cache configuration.
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390 | * - `key` - Used to define the key used in the Cache::write(). It will be prefixed with `element_`
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391 | * - `plugin` - (deprecated!) Load an element from a specific plugin. This option is deprecated, and
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392 | * will be removed in CakePHP 3.0. Use `Plugin.element_name` instead.
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393 | * - `callbacks` - Set to true to fire beforeRender and afterRender helper callbacks for this element.
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394 | * Defaults to false.
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395 | * - `ignoreMissing` - Used to allow missing elements. Set to true to not trigger notices.
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396 | * @return string Rendered Element
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397 | */
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398 | public function element($name, $data = array(), $options = array()) { |
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399 | $file = $plugin = null; |
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400 | |||
401 | if (isset($options['plugin'])) { |
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402 | $name = Inflector::camelize($options['plugin']) . '.' . $name; |
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403 | } |
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404 | |||
405 | if (!isset($options['callbacks'])) { |
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406 | $options['callbacks'] = false; |
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407 | } |
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408 | |||
409 | if (isset($options['cache'])) { |
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410 | $contents = $this->_elementCache($name, $data, $options); |
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411 | if ($contents !== false) { |
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412 | return $contents; |
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413 | } |
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414 | } |
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415 | |||
416 | $file = $this->_getElementFilename($name); |
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417 | if ($file) { |
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418 | return $this->_renderElement($file, $data, $options); |
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419 | } |
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420 | |||
421 | if (empty($options['ignoreMissing'])) { |
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422 | list ($plugin, $name) = pluginSplit($name, true); |
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423 | $name = str_replace('/', DS, $name); |
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424 | $file = $plugin . 'Elements' . DS . $name . $this->ext; |
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425 | trigger_error(__d('cake_dev', 'Element Not Found: %s', $file), E_USER_NOTICE); |
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426 | } |
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427 | } |
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428 | |||
429 | /**
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430 | * Checks if an element exists
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431 | *
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432 | * @param string $name Name of template file in the /app/View/Elements/ folder,
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433 | * or `MyPlugin.template` to check the template element from MyPlugin. If the element
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434 | * is not found in the plugin, the normal view path cascade will be searched.
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435 | * @return bool Success
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436 | */
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437 | public function elementExists($name) { |
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438 | return (bool)$this->_getElementFilename($name); |
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439 | } |
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440 | |||
441 | /**
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442 | * Renders view for given view file and layout.
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443 | *
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444 | * Render triggers helper callbacks, which are fired before and after the view are rendered,
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445 | * as well as before and after the layout. The helper callbacks are called:
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446 | *
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447 | * - `beforeRender`
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448 | * - `afterRender`
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449 | * - `beforeLayout`
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450 | * - `afterLayout`
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451 | *
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452 | * If View::$autoRender is false and no `$layout` is provided, the view will be returned bare.
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453 | *
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454 | * View and layout names can point to plugin views/layouts. Using the `Plugin.view` syntax
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455 | * a plugin view/layout can be used instead of the app ones. If the chosen plugin is not found
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456 | * the view will be located along the regular view path cascade.
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457 | *
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458 | * @param string $view Name of view file to use
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459 | * @param string $layout Layout to use.
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460 | * @return string|null Rendered content or null if content already rendered and returned earlier.
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461 | * @triggers View.beforeRender $this, array($viewFileName)
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462 | * @triggers View.afterRender $this, array($viewFileName)
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463 | * @throws CakeException If there is an error in the view.
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464 | */
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465 | public function render($view = null, $layout = null) { |
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466 | if ($this->hasRendered) { |
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467 | return null; |
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468 | } |
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469 | |||
470 | if ($view !== false && $viewFileName = $this->_getViewFileName($view)) { |
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471 | $this->_currentType = static::TYPE_VIEW; |
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472 | $this->getEventManager()->dispatch(new CakeEvent('View.beforeRender', $this, array($viewFileName))); |
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473 | $this->Blocks->set('content', $this->_render($viewFileName)); |
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474 | $this->getEventManager()->dispatch(new CakeEvent('View.afterRender', $this, array($viewFileName))); |
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475 | } |
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476 | |||
477 | if ($layout === null) { |
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478 | $layout = $this->layout; |
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479 | } |
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480 | if ($layout && $this->autoLayout) { |
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481 | $this->Blocks->set('content', $this->renderLayout('', $layout)); |
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482 | } |
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483 | $this->hasRendered = true; |
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484 | return $this->Blocks->get('content'); |
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485 | } |
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486 | |||
487 | /**
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488 | * Renders a layout. Returns output from _render(). Returns false on error.
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489 | * Several variables are created for use in layout.
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490 | *
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491 | * - `title_for_layout` - A backwards compatible place holder, you should set this value if you want more control.
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492 | * - `content_for_layout` - contains rendered view file
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493 | * - `scripts_for_layout` - Contains content added with addScript() as well as any content in
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494 | * the 'meta', 'css', and 'script' blocks. They are appended in that order.
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495 | *
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496 | * Deprecated features:
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497 | *
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498 | * - `$scripts_for_layout` is deprecated and will be removed in CakePHP 3.0.
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499 | * Use the block features instead. `meta`, `css` and `script` will be populated
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500 | * by the matching methods on HtmlHelper.
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501 | * - `$title_for_layout` is deprecated and will be removed in CakePHP 3.0.
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502 | * Use the `title` block instead.
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503 | * - `$content_for_layout` is deprecated and will be removed in CakePHP 3.0.
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504 | * Use the `content` block instead.
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505 | *
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506 | * @param string $content Content to render in a view, wrapped by the surrounding layout.
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507 | * @param string $layout Layout name
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508 | * @return mixed Rendered output, or false on error
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509 | * @triggers View.beforeLayout $this, array($layoutFileName)
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510 | * @triggers View.afterLayout $this, array($layoutFileName)
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511 | * @throws CakeException if there is an error in the view.
|
||
512 | */
|
||
513 | public function renderLayout($content, $layout = null) { |
||
514 | $layoutFileName = $this->_getLayoutFileName($layout); |
||
515 | if (empty($layoutFileName)) { |
||
516 | return $this->Blocks->get('content'); |
||
517 | } |
||
518 | |||
519 | if (empty($content)) { |
||
520 | $content = $this->Blocks->get('content'); |
||
521 | } else {
|
||
522 | $this->Blocks->set('content', $content); |
||
523 | } |
||
524 | $this->getEventManager()->dispatch(new CakeEvent('View.beforeLayout', $this, array($layoutFileName))); |
||
525 | |||
526 | $scripts = implode("\n\t", $this->_scripts); |
||
527 | $scripts .= $this->Blocks->get('meta') . $this->Blocks->get('css') . $this->Blocks->get('script'); |
||
528 | |||
529 | $this->viewVars = array_merge($this->viewVars, array( |
||
530 | 'content_for_layout' => $content, |
||
531 | 'scripts_for_layout' => $scripts, |
||
532 | )); |
||
533 | |||
534 | $title = $this->Blocks->get('title'); |
||
535 | if ($title === '') { |
||
536 | if (isset($this->viewVars['title_for_layout'])) { |
||
537 | $title = $this->viewVars['title_for_layout']; |
||
538 | } else {
|
||
539 | $title = Inflector::humanize($this->viewPath); |
||
540 | } |
||
541 | } |
||
542 | $this->viewVars['title_for_layout'] = $title; |
||
543 | $this->Blocks->set('title', $title); |
||
544 | |||
545 | $this->_currentType = static::TYPE_LAYOUT; |
||
546 | $this->Blocks->set('content', $this->_render($layoutFileName)); |
||
547 | |||
548 | $this->getEventManager()->dispatch(new CakeEvent('View.afterLayout', $this, array($layoutFileName))); |
||
549 | return $this->Blocks->get('content'); |
||
550 | } |
||
551 | |||
552 | /**
|
||
553 | * Render cached view. Works in concert with CacheHelper and Dispatcher to
|
||
554 | * render cached view files.
|
||
555 | *
|
||
556 | * @param string $filename the cache file to include
|
||
557 | * @param string $timeStart the page render start time
|
||
558 | * @return bool Success of rendering the cached file.
|
||
559 | */
|
||
560 | public function renderCache($filename, $timeStart) { |
||
561 | $response = $this->response; |
||
562 | ob_start(); |
||
563 | include $filename; |
||
564 | |||
565 | $type = $response->mapType($response->type()); |
||
566 | if (Configure::read('debug') > 0 && $type === 'html') { |
||
567 | echo "<!-- Cached Render Time: " . round(microtime(true) - $timeStart, 4) . "s -->"; |
||
568 | } |
||
569 | $out = ob_get_clean();
|
||
570 | |||
571 | if (preg_match('/^<!--cachetime:(\\d+)-->/', $out, $match)) { |
||
572 | if (time() >= $match['1']) { |
||
573 | //@codingStandardsIgnoreStart
|
||
574 | @unlink($filename); |
||
575 | //@codingStandardsIgnoreEnd
|
||
576 | unset($out); |
||
577 | return false; |
||
578 | } |
||
579 | return substr($out, strlen($match[0])); |
||
580 | } |
||
581 | } |
||
582 | |||
583 | /**
|
||
584 | * Returns a list of variables available in the current View context
|
||
585 | *
|
||
586 | * @return array Array of the set view variable names.
|
||
587 | */
|
||
588 | public function getVars() { |
||
589 | return array_keys($this->viewVars); |
||
590 | } |
||
591 | |||
592 | /**
|
||
593 | * Returns the contents of the given View variable(s)
|
||
594 | *
|
||
595 | * @param string $var The view var you want the contents of.
|
||
596 | * @return mixed The content of the named var if its set, otherwise null.
|
||
597 | * @deprecated 3.0.0 Will be removed in 3.0. Use View::get() instead.
|
||
598 | */
|
||
599 | public function getVar($var) { |
||
600 | return $this->get($var); |
||
601 | } |
||
602 | |||
603 | /**
|
||
604 | * Returns the contents of the given View variable.
|
||
605 | *
|
||
606 | * @param string $var The view var you want the contents of.
|
||
607 | * @param mixed $default The default/fallback content of $var.
|
||
608 | * @return mixed The content of the named var if its set, otherwise $default.
|
||
609 | */
|
||
610 | public function get($var, $default = null) { |
||
611 | if (!isset($this->viewVars[$var])) { |
||
612 | return $default; |
||
613 | } |
||
614 | return $this->viewVars[$var]; |
||
615 | } |
||
616 | |||
617 | /**
|
||
618 | * Get the names of all the existing blocks.
|
||
619 | *
|
||
620 | * @return array An array containing the blocks.
|
||
621 | * @see ViewBlock::keys()
|
||
622 | */
|
||
623 | public function blocks() { |
||
624 | return $this->Blocks->keys(); |
||
625 | } |
||
626 | |||
627 | /**
|
||
628 | * Start capturing output for a 'block'
|
||
629 | *
|
||
630 | * @param string $name The name of the block to capture for.
|
||
631 | * @return void
|
||
632 | * @see ViewBlock::start()
|
||
633 | */
|
||
634 | public function start($name) { |
||
635 | $this->Blocks->start($name); |
||
636 | } |
||
637 | |||
638 | /**
|
||
639 | * Start capturing output for a 'block' if it has no content
|
||
640 | *
|
||
641 | * @param string $name The name of the block to capture for.
|
||
642 | * @return void
|
||
643 | * @see ViewBlock::startIfEmpty()
|
||
644 | */
|
||
645 | public function startIfEmpty($name) { |
||
646 | $this->Blocks->startIfEmpty($name); |
||
647 | } |
||
648 | |||
649 | /**
|
||
650 | * Append to an existing or new block. Appending to a new
|
||
651 | * block will create the block.
|
||
652 | *
|
||
653 | * @param string $name Name of the block
|
||
654 | * @param mixed $value The content for the block.
|
||
655 | * @return void
|
||
656 | * @see ViewBlock::concat()
|
||
657 | */
|
||
658 | public function append($name, $value = null) { |
||
659 | $this->Blocks->concat($name, $value); |
||
660 | } |
||
661 | |||
662 | /**
|
||
663 | * Prepend to an existing or new block. Prepending to a new
|
||
664 | * block will create the block.
|
||
665 | *
|
||
666 | * @param string $name Name of the block
|
||
667 | * @param mixed $value The content for the block.
|
||
668 | * @return void
|
||
669 | * @see ViewBlock::concat()
|
||
670 | */
|
||
671 | public function prepend($name, $value = null) { |
||
672 | $this->Blocks->concat($name, $value, ViewBlock::PREPEND); |
||
673 | } |
||
674 | |||
675 | /**
|
||
676 | * Set the content for a block. This will overwrite any
|
||
677 | * existing content.
|
||
678 | *
|
||
679 | * @param string $name Name of the block
|
||
680 | * @param mixed $value The content for the block.
|
||
681 | * @return void
|
||
682 | * @see ViewBlock::set()
|
||
683 | */
|
||
684 | public function assign($name, $value) { |
||
685 | $this->Blocks->set($name, $value); |
||
686 | } |
||
687 | |||
688 | /**
|
||
689 | * Fetch the content for a block. If a block is
|
||
690 | * empty or undefined '' will be returned.
|
||
691 | *
|
||
692 | * @param string $name Name of the block
|
||
693 | * @param string $default Default text
|
||
694 | * @return string default The block content or $default if the block does not exist.
|
||
695 | * @see ViewBlock::get()
|
||
696 | */
|
||
697 | public function fetch($name, $default = '') { |
||
698 | return $this->Blocks->get($name, $default); |
||
699 | } |
||
700 | |||
701 | /**
|
||
702 | * Check if a block exists
|
||
703 | *
|
||
704 | * @param string $name Name of the block
|
||
705 | * @return bool
|
||
706 | */
|
||
707 | public function exists($name) { |
||
708 | return $this->Blocks->exists($name); |
||
709 | } |
||
710 | |||
711 | /**
|
||
712 | * End a capturing block. The compliment to View::start()
|
||
713 | *
|
||
714 | * @return void
|
||
715 | * @see ViewBlock::end()
|
||
716 | */
|
||
717 | public function end() { |
||
718 | $this->Blocks->end(); |
||
719 | } |
||
720 | |||
721 | /**
|
||
722 | * Provides view or element extension/inheritance. Views can extends a
|
||
723 | * parent view and populate blocks in the parent template.
|
||
724 | *
|
||
725 | * @param string $name The view or element to 'extend' the current one with.
|
||
726 | * @return void
|
||
727 | * @throws LogicException when you extend a view with itself or make extend loops.
|
||
728 | * @throws LogicException when you extend an element which doesn't exist
|
||
729 | */
|
||
730 | public function extend($name) { |
||
731 | if ($name[0] === '/' || $this->_currentType === static::TYPE_VIEW) { |
||
732 | $parent = $this->_getViewFileName($name); |
||
733 | } else {
|
||
734 | switch ($this->_currentType) { |
||
735 | case static::TYPE_ELEMENT: |
||
736 | $parent = $this->_getElementFileName($name); |
||
737 | if (!$parent) { |
||
738 | list($plugin, $name) = $this->pluginSplit($name); |
||
739 | $paths = $this->_paths($plugin); |
||
740 | $defaultPath = $paths[0] . 'Elements' . DS; |
||
741 | throw new LogicException(__d( |
||
742 | 'cake_dev',
|
||
743 | 'You cannot extend an element which does not exist (%s).',
|
||
744 | $defaultPath . $name . $this->ext |
||
745 | )); |
||
746 | } |
||
747 | break;
|
||
748 | case static::TYPE_LAYOUT: |
||
749 | $parent = $this->_getLayoutFileName($name); |
||
750 | break;
|
||
751 | default:
|
||
752 | $parent = $this->_getViewFileName($name); |
||
753 | } |
||
754 | } |
||
755 | |||
756 | if ($parent == $this->_current) { |
||
757 | throw new LogicException(__d('cake_dev', 'You cannot have views extend themselves.')); |
||
758 | } |
||
759 | if (isset($this->_parents[$parent]) && $this->_parents[$parent] == $this->_current) { |
||
760 | throw new LogicException(__d('cake_dev', 'You cannot have views extend in a loop.')); |
||
761 | } |
||
762 | $this->_parents[$this->_current] = $parent; |
||
763 | } |
||
764 | |||
765 | /**
|
||
766 | * Adds a script block or other element to be inserted in $scripts_for_layout in
|
||
767 | * the `<head />` of a document layout
|
||
768 | *
|
||
769 | * @param string $name Either the key name for the script, or the script content. Name can be used to
|
||
770 | * update/replace a script element.
|
||
771 | * @param string $content The content of the script being added, optional.
|
||
772 | * @return void
|
||
773 | * @deprecated 3.0.0 Will be removed in 3.0. Superseded by blocks functionality.
|
||
774 | * @see View::start()
|
||
775 | */
|
||
776 | public function addScript($name, $content = null) { |
||
777 | if (empty($content)) { |
||
778 | if (!in_array($name, array_values($this->_scripts))) { |
||
779 | $this->_scripts[] = $name; |
||
780 | } |
||
781 | } else {
|
||
782 | $this->_scripts[$name] = $content; |
||
783 | } |
||
784 | } |
||
785 | |||
786 | /**
|
||
787 | * Generates a unique, non-random DOM ID for an object, based on the object type and the target URL.
|
||
788 | *
|
||
789 | * @param string $object Type of object, i.e. 'form' or 'link'
|
||
790 | * @param string $url The object's target URL
|
||
791 | * @return string
|
||
792 | */
|
||
793 | public function uuid($object, $url) { |
||
794 | $c = 1; |
||
795 | $url = Router::url($url); |
||
796 | $hash = $object . substr(md5($object . $url), 0, 10); |
||
797 | while (in_array($hash, $this->uuids)) { |
||
798 | $hash = $object . substr(md5($object . $url . $c), 0, 10); |
||
799 | $c++;
|
||
800 | } |
||
801 | $this->uuids[] = $hash; |
||
802 | return $hash; |
||
803 | } |
||
804 | |||
805 | /**
|
||
806 | * Allows a template or element to set a variable that will be available in
|
||
807 | * a layout or other element. Analogous to Controller::set().
|
||
808 | *
|
||
809 | * @param string|array $one A string or an array of data.
|
||
810 | * @param string|array $two Value in case $one is a string (which then works as the key).
|
||
811 | * Unused if $one is an associative array, otherwise serves as the values to $one's keys.
|
||
812 | * @return void
|
||
813 | */
|
||
814 | public function set($one, $two = null) { |
||
815 | $data = null; |
||
816 | if (is_array($one)) { |
||
817 | if (is_array($two)) { |
||
818 | $data = array_combine($one, $two); |
||
819 | } else {
|
||
820 | $data = $one; |
||
821 | } |
||
822 | } else {
|
||
823 | $data = array($one => $two); |
||
824 | } |
||
825 | if (!$data) { |
||
826 | return false; |
||
827 | } |
||
828 | $this->viewVars = $data + $this->viewVars; |
||
829 | } |
||
830 | /**
|
||
831 | * Retrieve the current view type
|
||
832 | *
|
||
833 | * @return string
|
||
834 | */
|
||
835 | public function getCurrentType() { |
||
836 | return $this->_currentType; |
||
837 | } |
||
838 | /**
|
||
839 | * Magic accessor for helpers. Provides access to attributes that were deprecated.
|
||
840 | *
|
||
841 | * @param string $name Name of the attribute to get.
|
||
842 | * @return mixed
|
||
843 | */
|
||
844 | public function __get($name) { |
||
845 | switch ($name) { |
||
846 | case 'base': |
||
847 | case 'here': |
||
848 | case 'webroot': |
||
849 | case 'data': |
||
850 | return $this->request->{$name}; |
||
851 | case 'action': |
||
852 | return $this->request->params['action']; |
||
853 | case 'params': |
||
854 | return $this->request; |
||
855 | case 'output': |
||
856 | return $this->Blocks->get('content'); |
||
857 | } |
||
858 | if (isset($this->Helpers->{$name})) { |
||
859 | $this->{$name} = $this->Helpers->{$name}; |
||
860 | return $this->Helpers->{$name}; |
||
861 | } |
||
862 | return $this->{$name}; |
||
863 | } |
||
864 | |||
865 | /**
|
||
866 | * Magic accessor for deprecated attributes.
|
||
867 | *
|
||
868 | * @param string $name Name of the attribute to set.
|
||
869 | * @param mixed $value Value of the attribute to set.
|
||
870 | * @return mixed
|
||
871 | */
|
||
872 | public function __set($name, $value) { |
||
873 | switch ($name) { |
||
874 | case 'output': |
||
875 | return $this->Blocks->set('content', $value); |
||
876 | default:
|
||
877 | $this->{$name} = $value; |
||
878 | } |
||
879 | } |
||
880 | |||
881 | /**
|
||
882 | * Magic isset check for deprecated attributes.
|
||
883 | *
|
||
884 | * @param string $name Name of the attribute to check.
|
||
885 | * @return bool
|
||
886 | */
|
||
887 | public function __isset($name) { |
||
888 | if (isset($this->{$name})) { |
||
889 | return true; |
||
890 | } |
||
891 | $magicGet = array('base', 'here', 'webroot', 'data', 'action', 'params', 'output'); |
||
892 | if (in_array($name, $magicGet)) { |
||
893 | return $this->__get($name) !== null; |
||
894 | } |
||
895 | return false; |
||
896 | } |
||
897 | |||
898 | /**
|
||
899 | * Interact with the HelperCollection to load all the helpers.
|
||
900 | *
|
||
901 | * @return void
|
||
902 | */
|
||
903 | public function loadHelpers() { |
||
904 | $helpers = HelperCollection::normalizeObjectArray($this->helpers); |
||
905 | foreach ($helpers as $properties) { |
||
906 | list(, $class) = pluginSplit($properties['class']); |
||
907 | $this->{$class} = $this->Helpers->load($properties['class'], $properties['settings']); |
||
908 | } |
||
909 | } |
||
910 | |||
911 | /**
|
||
912 | * Renders and returns output for given view filename with its
|
||
913 | * array of data. Handles parent/extended views.
|
||
914 | *
|
||
915 | * @param string $viewFile Filename of the view
|
||
916 | * @param array $data Data to include in rendered view. If empty the current View::$viewVars will be used.
|
||
917 | * @return string Rendered output
|
||
918 | * @triggers View.beforeRenderFile $this, array($viewFile)
|
||
919 | * @triggers View.afterRenderFile $this, array($viewFile, $content)
|
||
920 | * @throws CakeException when a block is left open.
|
||
921 | */
|
||
922 | protected function _render($viewFile, $data = array()) { |
||
923 | if (empty($data)) { |
||
924 | $data = $this->viewVars; |
||
925 | } |
||
926 | $this->_current = $viewFile; |
||
927 | $initialBlocks = count($this->Blocks->unclosed()); |
||
928 | |||
929 | $eventManager = $this->getEventManager(); |
||
930 | $beforeEvent = new CakeEvent('View.beforeRenderFile', $this, array($viewFile)); |
||
931 | |||
932 | $eventManager->dispatch($beforeEvent); |
||
933 | $content = $this->_evaluate($viewFile, $data); |
||
934 | |||
935 | $afterEvent = new CakeEvent('View.afterRenderFile', $this, array($viewFile, $content)); |
||
936 | |||
937 | $afterEvent->modParams = 1; |
||
938 | $eventManager->dispatch($afterEvent); |
||
939 | $content = $afterEvent->data[1]; |
||
940 | |||
941 | if (isset($this->_parents[$viewFile])) { |
||
942 | $this->_stack[] = $this->fetch('content'); |
||
943 | $this->assign('content', $content); |
||
944 | |||
945 | $content = $this->_render($this->_parents[$viewFile]); |
||
946 | $this->assign('content', array_pop($this->_stack)); |
||
947 | } |
||
948 | |||
949 | $remainingBlocks = count($this->Blocks->unclosed()); |
||
950 | |||
951 | if ($initialBlocks !== $remainingBlocks) { |
||
952 | throw new CakeException(__d('cake_dev', 'The "%s" block was left open. Blocks are not allowed to cross files.', $this->Blocks->active())); |
||
953 | } |
||
954 | |||
955 | return $content; |
||
956 | } |
||
957 | |||
958 | /**
|
||
959 | * Sandbox method to evaluate a template / view script in.
|
||
960 | *
|
||
961 | * @param string $viewFile Filename of the view
|
||
962 | * @param array $dataForView Data to include in rendered view.
|
||
963 | * If empty the current View::$viewVars will be used.
|
||
964 | * @return string Rendered output
|
||
965 | */
|
||
966 | protected function _evaluate($viewFile, $dataForView) { |
||
967 | $this->__viewFile = $viewFile; |
||
968 | extract($dataForView); |
||
969 | ob_start(); |
||
970 | |||
971 | include $this->__viewFile; |
||
972 | |||
973 | unset($this->__viewFile); |
||
974 | return ob_get_clean();
|
||
975 | } |
||
976 | |||
977 | /**
|
||
978 | * Loads a helper. Delegates to the `HelperCollection::load()` to load the helper
|
||
979 | *
|
||
980 | * @param string $helperName Name of the helper to load.
|
||
981 | * @param array $settings Settings for the helper
|
||
982 | * @return Helper a constructed helper object.
|
||
983 | * @see HelperCollection::load()
|
||
984 | */
|
||
985 | public function loadHelper($helperName, $settings = array()) { |
||
986 | return $this->Helpers->load($helperName, $settings); |
||
987 | } |
||
988 | |||
989 | /**
|
||
990 | * Returns filename of given action's template file (.ctp) as a string.
|
||
991 | * CamelCased action names will be under_scored! This means that you can have
|
||
992 | * LongActionNames that refer to long_action_names.ctp views.
|
||
993 | *
|
||
994 | * @param string $name Controller action to find template filename for
|
||
995 | * @return string Template filename
|
||
996 | * @throws MissingViewException when a view file could not be found.
|
||
997 | */
|
||
998 | protected function _getViewFileName($name = null) { |
||
999 | $subDir = null; |
||
1000 | |||
1001 | if ($this->subDir !== null) { |
||
1002 | $subDir = $this->subDir . DS; |
||
1003 | } |
||
1004 | |||
1005 | if ($name === null) { |
||
1006 | $name = $this->view; |
||
1007 | } |
||
1008 | $name = str_replace('/', DS, $name); |
||
1009 | list($plugin, $name) = $this->pluginSplit($name); |
||
1010 | |||
1011 | if (strpos($name, DS) === false && $name[0] !== '.') { |
||
1012 | $name = $this->viewPath . DS . $subDir . Inflector::underscore($name); |
||
1013 | } elseif (strpos($name, DS) !== false) { |
||
1014 | if ($name[0] === DS || $name[1] === ':') { |
||
1015 | $name = trim($name, DS); |
||
1016 | } elseif ($name[0] === '.') { |
||
1017 | $name = substr($name, 3); |
||
1018 | } elseif (!$plugin || $this->viewPath !== $this->name) { |
||
1019 | $name = $this->viewPath . DS . $subDir . $name; |
||
1020 | } |
||
1021 | } |
||
1022 | $paths = $this->_paths($plugin); |
||
1023 | $exts = $this->_getExtensions(); |
||
1024 | foreach ($exts as $ext) { |
||
1025 | foreach ($paths as $path) { |
||
1026 | if (file_exists($path . $name . $ext)) { |
||
1027 | return $path . $name . $ext; |
||
1028 | } |
||
1029 | } |
||
1030 | } |
||
1031 | throw new MissingViewException(array('file' => $name . $this->ext)); |
||
1032 | } |
||
1033 | |||
1034 | /**
|
||
1035 | * Splits a dot syntax plugin name into its plugin and filename.
|
||
1036 | * If $name does not have a dot, then index 0 will be null.
|
||
1037 | * It checks if the plugin is loaded, else filename will stay unchanged for filenames containing dot
|
||
1038 | *
|
||
1039 | * @param string $name The name you want to plugin split.
|
||
1040 | * @param bool $fallback If true uses the plugin set in the current CakeRequest when parsed plugin is not loaded
|
||
1041 | * @return array Array with 2 indexes. 0 => plugin name, 1 => filename
|
||
1042 | */
|
||
1043 | public function pluginSplit($name, $fallback = true) { |
||
1044 | $plugin = null; |
||
1045 | list($first, $second) = pluginSplit($name); |
||
1046 | if (CakePlugin::loaded($first) === true) { |
||
1047 | $name = $second; |
||
1048 | $plugin = $first; |
||
1049 | } |
||
1050 | if (isset($this->plugin) && !$plugin && $fallback) { |
||
1051 | $plugin = $this->plugin; |
||
1052 | } |
||
1053 | return array($plugin, $name); |
||
1054 | } |
||
1055 | |||
1056 | /**
|
||
1057 | * Returns layout filename for this template as a string.
|
||
1058 | *
|
||
1059 | * @param string $name The name of the layout to find.
|
||
1060 | * @return string Filename for layout file (.ctp).
|
||
1061 | * @throws MissingLayoutException when a layout cannot be located
|
||
1062 | */
|
||
1063 | protected function _getLayoutFileName($name = null) { |
||
1064 | if ($name === null) { |
||
1065 | $name = $this->layout; |
||
1066 | } |
||
1067 | $subDir = null; |
||
1068 | |||
1069 | if ($this->layoutPath !== null) { |
||
1070 | $subDir = $this->layoutPath . DS; |
||
1071 | } |
||
1072 | list($plugin, $name) = $this->pluginSplit($name); |
||
1073 | $paths = $this->_paths($plugin); |
||
1074 | $file = 'Layouts' . DS . $subDir . $name; |
||
1075 | |||
1076 | $exts = $this->_getExtensions(); |
||
1077 | foreach ($exts as $ext) { |
||
1078 | foreach ($paths as $path) { |
||
1079 | if (file_exists($path . $file . $ext)) { |
||
1080 | return $path . $file . $ext; |
||
1081 | } |
||
1082 | } |
||
1083 | } |
||
1084 | throw new MissingLayoutException(array('file' => $file . $this->ext)); |
||
1085 | } |
||
1086 | |||
1087 | /**
|
||
1088 | * Get the extensions that view files can use.
|
||
1089 | *
|
||
1090 | * @return array Array of extensions view files use.
|
||
1091 | */
|
||
1092 | protected function _getExtensions() { |
||
1093 | $exts = array($this->ext); |
||
1094 | if ($this->ext !== '.ctp') { |
||
1095 | $exts[] = '.ctp'; |
||
1096 | } |
||
1097 | return $exts; |
||
1098 | } |
||
1099 | |||
1100 | /**
|
||
1101 | * Finds an element filename, returns false on failure.
|
||
1102 | *
|
||
1103 | * @param string $name The name of the element to find.
|
||
1104 | * @return mixed Either a string to the element filename or false when one can't be found.
|
||
1105 | */
|
||
1106 | protected function _getElementFileName($name) { |
||
1107 | list($plugin, $name) = $this->pluginSplit($name); |
||
1108 | |||
1109 | $paths = $this->_paths($plugin); |
||
1110 | $exts = $this->_getExtensions(); |
||
1111 | foreach ($exts as $ext) { |
||
1112 | foreach ($paths as $path) { |
||
1113 | if (file_exists($path . 'Elements' . DS . $name . $ext)) { |
||
1114 | return $path . 'Elements' . DS . $name . $ext; |
||
1115 | } |
||
1116 | } |
||
1117 | } |
||
1118 | return false; |
||
1119 | } |
||
1120 | |||
1121 | /**
|
||
1122 | * Return all possible paths to find view files in order
|
||
1123 | *
|
||
1124 | * @param string $plugin Optional plugin name to scan for view files.
|
||
1125 | * @param bool $cached Set to false to force a refresh of view paths. Default true.
|
||
1126 | * @return array paths
|
||
1127 | */
|
||
1128 | protected function _paths($plugin = null, $cached = true) { |
||
1129 | if ($cached === true) { |
||
1130 | if ($plugin === null && !empty($this->_paths)) { |
||
1131 | return $this->_paths; |
||
1132 | } |
||
1133 | if ($plugin !== null && isset($this->_pathsForPlugin[$plugin])) { |
||
1134 | return $this->_pathsForPlugin[$plugin]; |
||
1135 | } |
||
1136 | } |
||
1137 | $paths = array(); |
||
1138 | $viewPaths = App::path('View'); |
||
1139 | $corePaths = array_merge(App::core('View'), App::core('Console/Templates/skel/View')); |
||
1140 | |||
1141 | if (!empty($plugin)) { |
||
1142 | $count = count($viewPaths); |
||
1143 | for ($i = 0; $i < $count; $i++) { |
||
1144 | if (!in_array($viewPaths[$i], $corePaths)) { |
||
1145 | $paths[] = $viewPaths[$i] . 'Plugin' . DS . $plugin . DS; |
||
1146 | } |
||
1147 | } |
||
1148 | $paths = array_merge($paths, App::path('View', $plugin)); |
||
1149 | } |
||
1150 | |||
1151 | $paths = array_unique(array_merge($paths, $viewPaths)); |
||
1152 | if (!empty($this->theme)) { |
||
1153 | $theme = Inflector::camelize($this->theme); |
||
1154 | $themePaths = array(); |
||
1155 | foreach ($paths as $path) { |
||
1156 | if (strpos($path, DS . 'Plugin' . DS) === false) { |
||
1157 | if ($plugin) { |
||
1158 | $themePaths[] = $path . 'Themed' . DS . $theme . DS . 'Plugin' . DS . $plugin . DS; |
||
1159 | } |
||
1160 | $themePaths[] = $path . 'Themed' . DS . $theme . DS; |
||
1161 | } |
||
1162 | } |
||
1163 | $paths = array_merge($themePaths, $paths); |
||
1164 | } |
||
1165 | $paths = array_merge($paths, $corePaths); |
||
1166 | if ($plugin !== null) { |
||
1167 | return $this->_pathsForPlugin[$plugin] = $paths; |
||
1168 | } |
||
1169 | return $this->_paths = $paths; |
||
1170 | } |
||
1171 | |||
1172 | /**
|
||
1173 | * Checks if an element is cached and returns the cached data if present
|
||
1174 | *
|
||
1175 | * @param string $name Element name
|
||
1176 | * @param string $data Data
|
||
1177 | * @param array $options Element options
|
||
1178 | * @return string|null
|
||
1179 | */
|
||
1180 | protected function _elementCache($name, $data, $options) { |
||
1181 | $plugin = null; |
||
1182 | list($plugin, $name) = $this->pluginSplit($name); |
||
1183 | |||
1184 | $underscored = null; |
||
1185 | if ($plugin) { |
||
1186 | $underscored = Inflector::underscore($plugin); |
||
1187 | } |
||
1188 | $keys = array_merge(array($underscored, $name), array_keys($options), array_keys($data)); |
||
1189 | $this->elementCacheSettings = array( |
||
1190 | 'config' => $this->elementCache, |
||
1191 | 'key' => implode('_', $keys) |
||
1192 | ); |
||
1193 | if (is_array($options['cache'])) { |
||
1194 | $defaults = array( |
||
1195 | 'config' => $this->elementCache, |
||
1196 | 'key' => $this->elementCacheSettings['key'] |
||
1197 | ); |
||
1198 | $this->elementCacheSettings = array_merge($defaults, $options['cache']); |
||
1199 | } |
||
1200 | $this->elementCacheSettings['key'] = 'element_' . $this->elementCacheSettings['key']; |
||
1201 | return Cache::read($this->elementCacheSettings['key'], $this->elementCacheSettings['config']); |
||
1202 | } |
||
1203 | |||
1204 | /**
|
||
1205 | * Renders an element and fires the before and afterRender callbacks for it
|
||
1206 | * and writes to the cache if a cache is used
|
||
1207 | *
|
||
1208 | * @param string $file Element file path
|
||
1209 | * @param array $data Data to render
|
||
1210 | * @param array $options Element options
|
||
1211 | * @return string
|
||
1212 | * @triggers View.beforeRender $this, array($file)
|
||
1213 | * @triggers View.afterRender $this, array($file, $element)
|
||
1214 | */
|
||
1215 | protected function _renderElement($file, $data, $options) { |
||
1216 | $current = $this->_current; |
||
1217 | $restore = $this->_currentType; |
||
1218 | $this->_currentType = static::TYPE_ELEMENT; |
||
1219 | |||
1220 | if ($options['callbacks']) { |
||
1221 | $this->getEventManager()->dispatch(new CakeEvent('View.beforeRender', $this, array($file))); |
||
1222 | } |
||
1223 | |||
1224 | $element = $this->_render($file, array_merge($this->viewVars, $data)); |
||
1225 | |||
1226 | if ($options['callbacks']) { |
||
1227 | $this->getEventManager()->dispatch(new CakeEvent('View.afterRender', $this, array($file, $element))); |
||
1228 | } |
||
1229 | |||
1230 | $this->_currentType = $restore; |
||
1231 | $this->_current = $current; |
||
1232 | |||
1233 | if (isset($options['cache'])) { |
||
1234 | Cache::write($this->elementCacheSettings['key'], $element, $this->elementCacheSettings['config']); |
||
1235 | } |
||
1236 | return $element; |
||
1237 | } |
||
1238 | } |