Total Complexity | 47 |
Total Lines | 272 |
Duplicated Lines | 0 % |
Changes | 5 | ||
Bugs | 0 | Features | 0 |
Complex classes like HeadlineRenderer often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use HeadlineRenderer, and based on these observations, apply Extract Interface, too.
1 | <?php declare(strict_types=1); |
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30 | class HeadlineRenderer |
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31 | { |
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32 | // holds reference to Headline class object |
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33 | protected $headline; |
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34 | protected $tpl; |
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35 | protected $feed; |
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36 | protected $block; |
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37 | protected $errors = []; |
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38 | // RSS2 SAX parser |
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39 | protected $parser; |
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40 | |||
41 | /** |
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42 | * HeadlineRenderer constructor. |
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43 | */ |
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44 | public function __construct(Headline $headline) |
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45 | { |
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46 | $this->headline = $headline; |
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47 | $this->tpl = new \XoopsTpl(); |
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48 | } |
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49 | |||
50 | /** |
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51 | * @return int|bool |
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52 | */ |
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53 | public function updateCache() |
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54 | { |
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55 | $helper = Helper::getInstance(); |
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56 | /** |
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57 | * Update cache - first try using fopen and then cURL |
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58 | */ |
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59 | $retval = false; |
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60 | if ($fp = @\fopen($this->headline->getVar('headline_rssurl'), 'rb')) { // successfully openned file using fopen |
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61 | $data = ''; |
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62 | while (!\feof($fp)) { |
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63 | $data .= \fgets($fp, 4096); |
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64 | } |
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65 | \fclose($fp); |
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66 | $this->headline->setVar('headline_xml', $this->convertToUtf8($data)); |
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67 | $this->headline->setVar('headline_updated', \time()); |
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68 | $headlineHandler = $helper->getHandler('Headline'); |
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69 | if (null !== $headlineHandler) { |
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70 | $retval = $headlineHandler->insert($this->headline); |
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71 | } |
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72 | } else { |
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73 | // failed open using fopen, now try cURL |
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74 | $ch = \curl_init($this->headline->getVar('headline_rssurl')); |
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75 | if (\curl_setopt($ch, \CURLOPT_RETURNTRANSFER, true)) { |
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76 | if ($data = \curl_exec($ch)) { |
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77 | \curl_close($ch); |
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78 | $this->headline->setVar('headline_xml', $this->convertToUtf8($data)); |
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79 | $this->headline->setVar('headline_updated', \time()); |
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80 | $headlineHandler = $helper->getHandler('Headline'); |
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81 | if (null !== $headlineHandler) { |
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82 | $retval = $headlineHandler->insert($this->headline); |
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83 | } |
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84 | } else { |
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85 | \curl_close($ch); |
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86 | $errmsg = \sprintf(\_MD_XOOPSHEADLINE_NOTOPEN, $this->headline->getVar('headline_rssurl')); |
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87 | $this->setErrors($errmsg); |
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88 | } |
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89 | } else { |
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90 | $this->setErrors(\_MD_XOOPSHEADLINE_BADOPT); |
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91 | } |
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92 | } |
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93 | |||
94 | return $retval; |
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95 | } |
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96 | |||
97 | public function renderFeed(bool $force_update = false): bool |
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98 | { |
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99 | $retval = false; |
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100 | if ($force_update || $this->headline->cacheExpired()) { |
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101 | if (!$this->updateCache()) { |
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102 | return $retval; |
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103 | } |
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104 | } |
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105 | if ($this->_parse()) { |
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106 | $this->tpl->clear_all_assign(); |
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107 | $this->tpl->assign('xoops_url', XOOPS_URL); |
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108 | $channel_data = $this->parser->getChannelData(); |
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109 | \array_walk($channel_data, [$this, 'convertFromUtf8']); |
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110 | $this->tpl->assign_by_ref('channel', $channel_data); |
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111 | if (1 == $this->headline->getVar('headline_mainimg')) { |
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112 | $image_data = $this->parser->getImageData(); |
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113 | \array_walk($image_data, [$this, 'convertFromUtf8']); |
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114 | $max_width = 256; |
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115 | $max_height = 92; |
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116 | if (!isset($image_data['height']) || !isset($image_data['width'])) { |
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117 | $image_size = @\getimagesize($image_data['url']); |
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118 | if ($image_size) { |
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119 | $image_data['width'] = $image_size[0]; |
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120 | $image_data['height'] = $image_size[1]; |
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121 | } |
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122 | } |
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123 | if (\array_key_exists('height', $image_data) && \array_key_exists('width', $image_data) |
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124 | && ($image_data['width'] > 0)) { |
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125 | $width_ratio = $image_data['width'] / $max_width; |
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126 | $height_ratio = $image_data['height'] / $max_height; |
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127 | $scale = \max($width_ratio, $height_ratio); |
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128 | if ($scale > 1) { |
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129 | $image_data['width'] = (int)($image_data['width'] / $scale); |
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130 | $image_data['height'] = (int)($image_data['height'] / $scale); |
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131 | } |
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132 | } |
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133 | $this->tpl->assign_by_ref('image', $image_data); |
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134 | } |
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135 | if (1 == $this->headline->getVar('headline_mainfull')) { |
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136 | $this->tpl->assign('show_full', true); |
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137 | } else { |
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138 | $this->tpl->assign('show_full', false); |
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139 | } |
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140 | $items = $this->parser->getItems(); |
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141 | $count = \count($items); |
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142 | $max = ($count > $this->headline->getVar('headline_mainmax')) ? $this->headline->getVar('headline_mainmax') : $count; |
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143 | for ($i = 0; $i < $max; ++$i) { |
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144 | \array_walk($items[$i], [$this, 'convertFromUtf8']); |
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145 | $this->tpl->append_by_ref('items', $items[$i]); |
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146 | } |
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147 | $this->tpl->assign( |
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148 | [ |
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149 | 'lang_lastbuild' => \_MD_XOOPSHEADLINE_LASTBUILD, |
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150 | 'lang_language' => \_MD_XOOPSHEADLINE_LANGUAGE, |
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151 | 'lang_description' => \_MD_XOOPSHEADLINE_DESCRIPTION, |
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152 | 'lang_webmaster' => \_MD_XOOPSHEADLINE_WEBMASTER, |
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153 | 'lang_category' => \_MD_XOOPSHEADLINE_CATEGORY, |
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154 | 'lang_generator' => \_MD_XOOPSHEADLINE_GENERATOR, |
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155 | 'lang_title' => \_MD_XOOPSHEADLINE_TITLE, |
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156 | 'lang_pubdate' => \_MD_XOOPSHEADLINE_PUBDATE, |
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157 | // 'lang_description2' => _MD_XOOPSHEADLINE_DESCRIPTION2, |
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158 | 'lang_more' => _MORE, |
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159 | ] |
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160 | ); |
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161 | $this->feed = $this->tpl->fetch('db:xoopsheadline_feed.tpl'); |
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162 | $retval = true; |
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163 | } |
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164 | |||
165 | return $retval; |
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166 | } |
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167 | |||
168 | public function renderBlock(bool $force_update = false): bool |
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207 | } |
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208 | |||
209 | protected function &_parse(): bool |
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210 | { |
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211 | $retval = true; |
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212 | if (!isset($this->parser)) { |
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213 | require_once XOOPS_ROOT_PATH . '/class/xml/rss/xmlrss2parser.php'; |
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214 | $temp = $this->headline->getVar('headline_xml'); |
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215 | $this->parser = new \XoopsXmlRss2Parser($temp); |
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216 | switch ($this->headline->getVar('headline_encoding')) { |
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217 | case 'utf-8': |
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218 | $this->parser->useUtfEncoding(); |
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219 | break; |
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220 | case 'us-ascii': |
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221 | $this->parser->useAsciiEncoding(); |
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222 | break; |
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223 | default: |
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224 | $this->parser->useIsoEncoding(); |
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225 | break; |
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226 | } |
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227 | $result = $this->parser->parse(); |
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228 | if (!$result) { |
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229 | $this->setErrors($this->parser->getErrors(false)); |
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230 | unset($this->parser); |
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231 | $retval = false; |
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232 | } |
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233 | } |
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234 | |||
235 | return $retval; |
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236 | } |
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237 | |||
238 | /** |
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239 | * @return mixed |
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240 | */ |
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241 | public function &getFeed() |
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242 | { |
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243 | return $this->feed; |
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244 | } |
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245 | |||
246 | /** |
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247 | * @return mixed |
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248 | */ |
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249 | public function &getBlock() |
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250 | { |
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251 | return $this->block; |
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252 | } |
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253 | |||
254 | protected function setErrors(string $err): void |
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255 | { |
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256 | $this->errors[] = $err; |
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257 | } |
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258 | |||
259 | /** |
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260 | * @return array|string |
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261 | */ |
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262 | public function &getErrors(bool $ashtml = true) |
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263 | { |
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264 | if ($ashtml) { |
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265 | $retval = ''; |
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266 | if (\count($this->errors) > 0) { |
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267 | foreach ($this->errors as $error) { |
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268 | $retval .= $error . '<br>'; |
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269 | } |
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270 | } |
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271 | } else { |
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272 | $retval = $this->errors; |
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273 | } |
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274 | |||
275 | return $retval; |
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276 | } |
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277 | |||
278 | // abstract |
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279 | // overide this method in /language/your_language/headlinerenderer.php |
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280 | // this method is called by the array_walk function |
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281 | // return void |
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282 | |||
283 | /** |
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284 | * @param $value |
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285 | * @param $key |
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286 | */ |
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287 | public function convertFromUtf8(&$value, $key): void |
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288 | { |
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289 | } |
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290 | |||
291 | // abstract |
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292 | // overide this method in /language/your_language/headlinerenderer.php |
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293 | // return string |
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294 | |||
295 | public function &convertToUtf8(string &$xmlfile): string |
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302 | } |
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303 | } |
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304 |