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1 <?php
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2 /**
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3 * Zend Framework (http://framework.zend.com/)
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4 *
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5 * @link http://github.com/zendframework/zf2 for the canonical source repository
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6 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
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7 * @license http://framework.zend.com/license/new-bsd New BSD License
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8 */
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9
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10 namespace Zend\Feed\Writer\Renderer\Feed;
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11
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12 use DateTime;
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13 use DOMDocument;
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14 use DOMElement;
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15 use Zend\Feed\Uri;
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16 use Zend\Feed\Writer;
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17 use Zend\Feed\Writer\Renderer;
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18 use Zend\Feed\Writer\Version;
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19
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20 /**
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21 */
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22 class Rss extends Renderer\AbstractRenderer implements Renderer\RendererInterface
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23 {
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24 /**
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25 * Constructor
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26 *
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27 * @param Writer\Feed $container
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28 */
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29 public function __construct(Writer\Feed $container)
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30 {
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31 parent::__construct($container);
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32 }
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33
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34 /**
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35 * Render RSS feed
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36 *
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37 * @return self
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38 */
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39 public function render()
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40 {
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41 $this->dom = new DOMDocument('1.0', $this->container->getEncoding());
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42 $this->dom->formatOutput = true;
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43 $this->dom->substituteEntities = false;
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44 $rss = $this->dom->createElement('rss');
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45 $this->setRootElement($rss);
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46 $rss->setAttribute('version', '2.0');
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47
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48 $channel = $this->dom->createElement('channel');
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49 $rss->appendChild($channel);
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50 $this->dom->appendChild($rss);
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51 $this->_setLanguage($this->dom, $channel);
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52 $this->_setBaseUrl($this->dom, $channel);
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53 $this->_setTitle($this->dom, $channel);
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54 $this->_setDescription($this->dom, $channel);
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55 $this->_setImage($this->dom, $channel);
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56 $this->_setDateCreated($this->dom, $channel);
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57 $this->_setDateModified($this->dom, $channel);
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58 $this->_setLastBuildDate($this->dom, $channel);
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59 $this->_setGenerator($this->dom, $channel);
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60 $this->_setLink($this->dom, $channel);
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61 $this->_setAuthors($this->dom, $channel);
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62 $this->_setCopyright($this->dom, $channel);
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63 $this->_setCategories($this->dom, $channel);
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64
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65 foreach ($this->extensions as $ext) {
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66 $ext->setType($this->getType());
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67 $ext->setRootElement($this->getRootElement());
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68 $ext->setDomDocument($this->getDomDocument(), $channel);
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69 $ext->render();
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70 }
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71
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72 foreach ($this->container as $entry) {
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73 if ($this->getDataContainer()->getEncoding()) {
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74 $entry->setEncoding($this->getDataContainer()->getEncoding());
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75 }
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76 if ($entry instanceof Writer\Entry) {
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77 $renderer = new Renderer\Entry\Rss($entry);
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78 } else {
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79 continue;
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80 }
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81 if ($this->ignoreExceptions === true) {
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82 $renderer->ignoreExceptions();
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83 }
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84 $renderer->setType($this->getType());
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85 $renderer->setRootElement($this->dom->documentElement);
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86 $renderer->render();
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87 $element = $renderer->getElement();
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88 $deep = version_compare(PHP_VERSION, '7', 'ge') ? 1 : true;
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89 $imported = $this->dom->importNode($element, $deep);
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90 $channel->appendChild($imported);
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91 }
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92 return $this;
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93 }
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94
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95 /**
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96 * Set feed language
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97 *
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98 * @param DOMDocument $dom
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99 * @param DOMElement $root
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100 * @return void
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101 */
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102 // @codingStandardsIgnoreStart
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103 protected function _setLanguage(DOMDocument $dom, DOMElement $root)
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104 {
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105 // @codingStandardsIgnoreEnd
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106 $lang = $this->getDataContainer()->getLanguage();
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107 if (! $lang) {
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108 return;
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109 }
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110 $language = $dom->createElement('language');
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111 $root->appendChild($language);
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112 $language->nodeValue = $lang;
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113 }
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114
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115 /**
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116 * Set feed title
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117 *
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118 * @param DOMDocument $dom
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119 * @param DOMElement $root
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120 * @return void
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121 * @throws Writer\Exception\InvalidArgumentException
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122 */
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123 // @codingStandardsIgnoreStart
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124 protected function _setTitle(DOMDocument $dom, DOMElement $root)
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125 {
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126 // @codingStandardsIgnoreEnd
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127 if (! $this->getDataContainer()->getTitle()) {
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128 $message = 'RSS 2.0 feed elements MUST contain exactly one'
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129 . ' title element but a title has not been set';
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130 $exception = new Writer\Exception\InvalidArgumentException($message);
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131 if (! $this->ignoreExceptions) {
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132 throw $exception;
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133 } else {
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134 $this->exceptions[] = $exception;
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135 return;
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136 }
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137 }
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138
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139 $title = $dom->createElement('title');
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140 $root->appendChild($title);
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141 $text = $dom->createTextNode($this->getDataContainer()->getTitle());
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142 $title->appendChild($text);
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143 }
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144
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145 /**
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146 * Set feed description
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147 *
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148 * @param DOMDocument $dom
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149 * @param DOMElement $root
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150 * @return void
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151 * @throws Writer\Exception\InvalidArgumentException
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152 */
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153 // @codingStandardsIgnoreStart
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154 protected function _setDescription(DOMDocument $dom, DOMElement $root)
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155 {
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156 // @codingStandardsIgnoreEnd
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157 if (! $this->getDataContainer()->getDescription()) {
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158 $message = 'RSS 2.0 feed elements MUST contain exactly one'
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159 . ' description element but one has not been set';
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160 $exception = new Writer\Exception\InvalidArgumentException($message);
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161 if (! $this->ignoreExceptions) {
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162 throw $exception;
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163 } else {
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164 $this->exceptions[] = $exception;
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165 return;
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166 }
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167 }
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168 $subtitle = $dom->createElement('description');
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169 $root->appendChild($subtitle);
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170 $text = $dom->createTextNode($this->getDataContainer()->getDescription());
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171 $subtitle->appendChild($text);
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172 }
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173
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174 /**
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175 * Set date feed was last modified
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176 *
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177 * @param DOMDocument $dom
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178 * @param DOMElement $root
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179 * @return void
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180 */
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181 // @codingStandardsIgnoreStart
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182 protected function _setDateModified(DOMDocument $dom, DOMElement $root)
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183 {
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184 // @codingStandardsIgnoreEnd
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185 if (! $this->getDataContainer()->getDateModified()) {
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186 return;
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187 }
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188
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189 $updated = $dom->createElement('pubDate');
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190 $root->appendChild($updated);
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191 $text = $dom->createTextNode(
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192 $this->getDataContainer()->getDateModified()->format(DateTime::RSS)
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193 );
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194 $updated->appendChild($text);
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195 }
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196
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197 /**
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198 * Set feed generator string
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199 *
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200 * @param DOMDocument $dom
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201 * @param DOMElement $root
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202 * @return void
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203 */
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204 // @codingStandardsIgnoreStart
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205 protected function _setGenerator(DOMDocument $dom, DOMElement $root)
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206 {
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207 // @codingStandardsIgnoreEnd
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208 if (! $this->getDataContainer()->getGenerator()) {
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209 $this->getDataContainer()->setGenerator(
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210 'Zend_Feed_Writer',
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211 Version::VERSION,
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212 'http://framework.zend.com'
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213 );
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214 }
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215
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216 $gdata = $this->getDataContainer()->getGenerator();
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217 $generator = $dom->createElement('generator');
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218 $root->appendChild($generator);
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219 $name = $gdata['name'];
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220 if (array_key_exists('version', $gdata)) {
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221 $name .= ' ' . $gdata['version'];
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222 }
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223 if (array_key_exists('uri', $gdata)) {
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224 $name .= ' (' . $gdata['uri'] . ')';
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225 }
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226 $text = $dom->createTextNode($name);
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227 $generator->appendChild($text);
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228 }
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229
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230 /**
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231 * Set link to feed
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232 *
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233 * @param DOMDocument $dom
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234 * @param DOMElement $root
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235 * @return void
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236 * @throws Writer\Exception\InvalidArgumentException
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237 */
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238 // @codingStandardsIgnoreStart
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239 protected function _setLink(DOMDocument $dom, DOMElement $root)
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240 {
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241 // @codingStandardsIgnoreEnd
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242 $value = $this->getDataContainer()->getLink();
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243 if (! $value) {
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244 $message = 'RSS 2.0 feed elements MUST contain exactly one'
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245 . ' link element but one has not been set';
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246 $exception = new Writer\Exception\InvalidArgumentException($message);
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247 if (! $this->ignoreExceptions) {
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248 throw $exception;
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249 } else {
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250 $this->exceptions[] = $exception;
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251 return;
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252 }
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253 }
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254 $link = $dom->createElement('link');
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255 $root->appendChild($link);
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256 $text = $dom->createTextNode($value);
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257 $link->appendChild($text);
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258 if (! Uri::factory($value)->isValid()) {
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259 $link->setAttribute('isPermaLink', 'false');
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260 }
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261 }
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262
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263 /**
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264 * Set feed authors
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265 *
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266 * @param DOMDocument $dom
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267 * @param DOMElement $root
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268 * @return void
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269 */
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270 // @codingStandardsIgnoreStart
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271 protected function _setAuthors(DOMDocument $dom, DOMElement $root)
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272 {
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273 // @codingStandardsIgnoreEnd
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274 $authors = $this->getDataContainer()->getAuthors();
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275 if (! $authors || empty($authors)) {
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276 return;
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277 }
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278 foreach ($authors as $data) {
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279 $author = $this->dom->createElement('author');
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280 $name = $data['name'];
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281 if (array_key_exists('email', $data)) {
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282 $name = $data['email'] . ' (' . $data['name'] . ')';
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283 }
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284 $text = $dom->createTextNode($name);
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285 $author->appendChild($text);
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286 $root->appendChild($author);
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287 }
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288 }
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289
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290 /**
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291 * Set feed copyright
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292 *
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293 * @param DOMDocument $dom
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294 * @param DOMElement $root
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295 * @return void
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296 */
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297 // @codingStandardsIgnoreStart
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298 protected function _setCopyright(DOMDocument $dom, DOMElement $root)
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299 {
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300 // @codingStandardsIgnoreEnd
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301 $copyright = $this->getDataContainer()->getCopyright();
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302 if (! $copyright) {
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303 return;
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304 }
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305 $copy = $dom->createElement('copyright');
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306 $root->appendChild($copy);
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307 $text = $dom->createTextNode($copyright);
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308 $copy->appendChild($text);
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309 }
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310
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311 /**
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312 * Set feed channel image
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313 *
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314 * @param DOMDocument $dom
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315 * @param DOMElement $root
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316 * @return void
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317 * @throws Writer\Exception\InvalidArgumentException
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318 */
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319 // @codingStandardsIgnoreStart
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320 protected function _setImage(DOMDocument $dom, DOMElement $root)
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321 {
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322 // @codingStandardsIgnoreEnd
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323 $image = $this->getDataContainer()->getImage();
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324 if (! $image) {
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325 return;
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326 }
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327
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328 if (! isset($image['title']) || empty($image['title'])
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329 || ! is_string($image['title'])
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330 ) {
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331 $message = 'RSS 2.0 feed images must include a title';
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332 $exception = new Writer\Exception\InvalidArgumentException($message);
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333 if (! $this->ignoreExceptions) {
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334 throw $exception;
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335 } else {
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336 $this->exceptions[] = $exception;
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337 return;
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338 }
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339 }
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340
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341 if (empty($image['link']) || ! is_string($image['link'])
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342 || ! Uri::factory($image['link'])->isValid()
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343 ) {
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344 $message = 'Invalid parameter: parameter \'link\''
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345 . ' must be a non-empty string and valid URI/IRI';
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346 $exception = new Writer\Exception\InvalidArgumentException($message);
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347 if (! $this->ignoreExceptions) {
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348 throw $exception;
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349 } else {
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350 $this->exceptions[] = $exception;
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351 return;
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352 }
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353 }
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354
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355 $img = $dom->createElement('image');
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356 $root->appendChild($img);
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357
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358 $url = $dom->createElement('url');
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359 $text = $dom->createTextNode($image['uri']);
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360 $url->appendChild($text);
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361
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362 $title = $dom->createElement('title');
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363 $text = $dom->createTextNode($image['title']);
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364 $title->appendChild($text);
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365
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366 $link = $dom->createElement('link');
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367 $text = $dom->createTextNode($image['link']);
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368 $link->appendChild($text);
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369
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370 $img->appendChild($url);
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371 $img->appendChild($title);
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372 $img->appendChild($link);
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373
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374 if (isset($image['height'])) {
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375 if (! ctype_digit((string) $image['height']) || $image['height'] > 400) {
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376 $message = 'Invalid parameter: parameter \'height\''
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377 . ' must be an integer not exceeding 400';
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378 $exception = new Writer\Exception\InvalidArgumentException($message);
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379 if (! $this->ignoreExceptions) {
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380 throw $exception;
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381 } else {
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382 $this->exceptions[] = $exception;
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383 return;
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384 }
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385 }
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386 $height = $dom->createElement('height');
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387 $text = $dom->createTextNode($image['height']);
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388 $height->appendChild($text);
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389 $img->appendChild($height);
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390 }
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391 if (isset($image['width'])) {
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392 if (! ctype_digit((string) $image['width']) || $image['width'] > 144) {
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393 $message = 'Invalid parameter: parameter \'width\''
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394 . ' must be an integer not exceeding 144';
|
Chris@0
|
395 $exception = new Writer\Exception\InvalidArgumentException($message);
|
Chris@12
|
396 if (! $this->ignoreExceptions) {
|
Chris@0
|
397 throw $exception;
|
Chris@0
|
398 } else {
|
Chris@0
|
399 $this->exceptions[] = $exception;
|
Chris@0
|
400 return;
|
Chris@0
|
401 }
|
Chris@0
|
402 }
|
Chris@0
|
403 $width = $dom->createElement('width');
|
Chris@0
|
404 $text = $dom->createTextNode($image['width']);
|
Chris@0
|
405 $width->appendChild($text);
|
Chris@0
|
406 $img->appendChild($width);
|
Chris@0
|
407 }
|
Chris@0
|
408 if (isset($image['description'])) {
|
Chris@12
|
409 if (empty($image['description']) || ! is_string($image['description'])) {
|
Chris@0
|
410 $message = 'Invalid parameter: parameter \'description\''
|
Chris@0
|
411 . ' must be a non-empty string';
|
Chris@0
|
412 $exception = new Writer\Exception\InvalidArgumentException($message);
|
Chris@12
|
413 if (! $this->ignoreExceptions) {
|
Chris@0
|
414 throw $exception;
|
Chris@0
|
415 } else {
|
Chris@0
|
416 $this->exceptions[] = $exception;
|
Chris@0
|
417 return;
|
Chris@0
|
418 }
|
Chris@0
|
419 }
|
Chris@0
|
420 $desc = $dom->createElement('description');
|
Chris@0
|
421 $text = $dom->createTextNode($image['description']);
|
Chris@0
|
422 $desc->appendChild($text);
|
Chris@0
|
423 $img->appendChild($desc);
|
Chris@0
|
424 }
|
Chris@0
|
425 }
|
Chris@0
|
426
|
Chris@0
|
427 /**
|
Chris@0
|
428 * Set date feed was created
|
Chris@0
|
429 *
|
Chris@0
|
430 * @param DOMDocument $dom
|
Chris@0
|
431 * @param DOMElement $root
|
Chris@0
|
432 * @return void
|
Chris@0
|
433 */
|
Chris@12
|
434 // @codingStandardsIgnoreStart
|
Chris@0
|
435 protected function _setDateCreated(DOMDocument $dom, DOMElement $root)
|
Chris@0
|
436 {
|
Chris@12
|
437 // @codingStandardsIgnoreEnd
|
Chris@12
|
438 if (! $this->getDataContainer()->getDateCreated()) {
|
Chris@0
|
439 return;
|
Chris@0
|
440 }
|
Chris@12
|
441 if (! $this->getDataContainer()->getDateModified()) {
|
Chris@0
|
442 $this->getDataContainer()->setDateModified(
|
Chris@0
|
443 $this->getDataContainer()->getDateCreated()
|
Chris@0
|
444 );
|
Chris@0
|
445 }
|
Chris@0
|
446 }
|
Chris@0
|
447
|
Chris@0
|
448 /**
|
Chris@0
|
449 * Set date feed last build date
|
Chris@0
|
450 *
|
Chris@0
|
451 * @param DOMDocument $dom
|
Chris@0
|
452 * @param DOMElement $root
|
Chris@0
|
453 * @return void
|
Chris@0
|
454 */
|
Chris@12
|
455 // @codingStandardsIgnoreStart
|
Chris@0
|
456 protected function _setLastBuildDate(DOMDocument $dom, DOMElement $root)
|
Chris@0
|
457 {
|
Chris@12
|
458 // @codingStandardsIgnoreEnd
|
Chris@12
|
459 if (! $this->getDataContainer()->getLastBuildDate()) {
|
Chris@0
|
460 return;
|
Chris@0
|
461 }
|
Chris@0
|
462
|
Chris@0
|
463 $lastBuildDate = $dom->createElement('lastBuildDate');
|
Chris@0
|
464 $root->appendChild($lastBuildDate);
|
Chris@0
|
465 $text = $dom->createTextNode(
|
Chris@0
|
466 $this->getDataContainer()->getLastBuildDate()->format(DateTime::RSS)
|
Chris@0
|
467 );
|
Chris@0
|
468 $lastBuildDate->appendChild($text);
|
Chris@0
|
469 }
|
Chris@0
|
470
|
Chris@0
|
471 /**
|
Chris@0
|
472 * Set base URL to feed links
|
Chris@0
|
473 *
|
Chris@0
|
474 * @param DOMDocument $dom
|
Chris@0
|
475 * @param DOMElement $root
|
Chris@0
|
476 * @return void
|
Chris@0
|
477 */
|
Chris@12
|
478 // @codingStandardsIgnoreStart
|
Chris@0
|
479 protected function _setBaseUrl(DOMDocument $dom, DOMElement $root)
|
Chris@0
|
480 {
|
Chris@12
|
481 // @codingStandardsIgnoreEnd
|
Chris@0
|
482 $baseUrl = $this->getDataContainer()->getBaseUrl();
|
Chris@12
|
483 if (! $baseUrl) {
|
Chris@0
|
484 return;
|
Chris@0
|
485 }
|
Chris@0
|
486 $root->setAttribute('xml:base', $baseUrl);
|
Chris@0
|
487 }
|
Chris@0
|
488
|
Chris@0
|
489 /**
|
Chris@0
|
490 * Set feed categories
|
Chris@0
|
491 *
|
Chris@0
|
492 * @param DOMDocument $dom
|
Chris@0
|
493 * @param DOMElement $root
|
Chris@0
|
494 * @return void
|
Chris@0
|
495 */
|
Chris@12
|
496 // @codingStandardsIgnoreStart
|
Chris@0
|
497 protected function _setCategories(DOMDocument $dom, DOMElement $root)
|
Chris@0
|
498 {
|
Chris@12
|
499 // @codingStandardsIgnoreEnd
|
Chris@0
|
500 $categories = $this->getDataContainer()->getCategories();
|
Chris@12
|
501 if (! $categories) {
|
Chris@0
|
502 return;
|
Chris@0
|
503 }
|
Chris@0
|
504 foreach ($categories as $cat) {
|
Chris@0
|
505 $category = $dom->createElement('category');
|
Chris@0
|
506 if (isset($cat['scheme'])) {
|
Chris@0
|
507 $category->setAttribute('domain', $cat['scheme']);
|
Chris@0
|
508 }
|
Chris@0
|
509 $text = $dom->createTextNode($cat['term']);
|
Chris@0
|
510 $category->appendChild($text);
|
Chris@0
|
511 $root->appendChild($category);
|
Chris@0
|
512 }
|
Chris@0
|
513 }
|
Chris@0
|
514 }
|