Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like news 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 news, and based on these observations, apply Extract Interface, too.
1 | <?php |
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15 | class news extends module_base |
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16 | { |
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17 | /** |
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18 | * Allowed columns: Just sum up your options (Exp: left + right = 10) |
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19 | * top 1 |
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20 | * left 2 |
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21 | * center 4 |
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22 | * right 8 |
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23 | * bottom 16 |
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24 | */ |
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25 | public $columns = 21; |
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26 | |||
27 | /** |
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28 | * Default modulename |
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29 | */ |
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30 | public $name = 'LATEST_NEWS'; |
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31 | |||
32 | /** |
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33 | * Default module-image: |
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34 | * file must be in "{T_THEME_PATH}/images/portal/" |
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35 | */ |
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36 | public $image_src = ''; |
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37 | |||
38 | /** |
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39 | * module-language file |
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40 | * file must be in "language/{$user->lang}/mods/portal/" |
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41 | */ |
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42 | public $language = 'portal_news_module'; |
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43 | |||
44 | /** @var bool Can include this module multiple times */ |
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45 | protected $multiple_includes = true; |
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46 | |||
47 | /** @var \phpbb\auth\auth */ |
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48 | protected $auth; |
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49 | |||
50 | /** @var \phpbb\cache\service */ |
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51 | protected $cache; |
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52 | |||
53 | /** @var \phpbb\config\config */ |
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54 | protected $config; |
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55 | |||
56 | /** @var \phpbb\db\driver\driver_Interface */ |
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57 | protected $db; |
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58 | |||
59 | /** @var \phpbb\pagination */ |
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60 | protected $pagination; |
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61 | |||
62 | /** @var \board3\portal\includes\modules_helper */ |
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63 | protected $modules_helper; |
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64 | |||
65 | /** @var \phpbb\request\request */ |
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66 | protected $request; |
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67 | |||
68 | /** @var \phpbb\template\template */ |
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69 | protected $template; |
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70 | |||
71 | /** @var string PHP file extension */ |
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72 | protected $php_ext; |
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73 | |||
74 | /** @var string phpBB root path */ |
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75 | protected $phpbb_root_path; |
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76 | |||
77 | /** @var \phpbb\user */ |
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78 | protected $user; |
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79 | |||
80 | /** @var \board3\portal\portal\fetch_posts */ |
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81 | protected $fetch_posts; |
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82 | |||
83 | /** |
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84 | * Construct a news object |
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85 | * |
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86 | * @param \phpbb\auth\auth $auth phpBB auth |
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87 | * @param \phpbb\cache\service $cache phpBB cache system |
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88 | * @param \phpbb\config\config $config phpBB config |
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89 | * @param \phpbb\db\driver\driver_interface $db phpBB db driver |
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90 | * @param \phpbb\pagination $pagination phpBB pagination |
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91 | * @param \board3\portal\includes\modules_helper $modules_helper Portal modules helper |
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92 | * @param \phpbb\request\request $request phpBB request |
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93 | * @param \phpbb\template\template $template phpBB template |
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94 | * @param string $phpbb_root_path phpBB root path |
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95 | * @param string $phpEx php file extension |
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96 | * @param \phpbb\user $user phpBB user object |
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97 | * @param \board3\portal\portal\fetch_posts $fetch_posts Fetch posts object |
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98 | */ |
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99 | View Code Duplication | public function __construct($auth, $cache, $config, $db, $pagination, $modules_helper, $request, $template, $phpbb_root_path, $phpEx, $user, $fetch_posts) |
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114 | |||
115 | /** |
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116 | * {@inheritdoc} |
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117 | */ |
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118 | public function get_template_center($module_id) |
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119 | { |
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120 | $news = $this->request->variable('news_' . $module_id, -1); |
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121 | $news = ($news > $this->config['board3_number_of_news_' . $module_id] -1) ? -1 : $news; |
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122 | $this->user->add_lang('viewforum'); |
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123 | $start = $this->request->variable('np_' . $module_id, 0); |
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124 | $start = ($start < 0) ? 0 : $start; |
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125 | $total_news = 1; |
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126 | |||
127 | // Fetch news from portal functions.php with check if "read full" is requested. |
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128 | $portal_news_length = ($news < 0 && !$this->config['board3_news_style_' . $module_id]) ? $this->config['board3_news_length_' . $module_id] : 0; |
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129 | $this->fetch_posts->set_module_id($module_id); |
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130 | $fetch_news = $this->fetch_posts->get_posts( |
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131 | $this->config['board3_news_forum_' . $module_id], |
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132 | $this->config['board3_news_permissions_' . $module_id], |
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133 | $this->config['board3_number_of_news_' . $module_id], |
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134 | $portal_news_length, |
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135 | 0, |
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136 | ($this->config['board3_show_all_news_' . $module_id]) ? 'news_all' : 'news', |
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137 | $start, |
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138 | (bool) $this->config['board3_news_exclude_' . $module_id] |
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139 | ); |
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140 | |||
141 | $topic_icons = false; |
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142 | if (!empty($fetch_news['topic_icons'])) |
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143 | { |
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144 | $topic_icons = true; |
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145 | } |
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146 | |||
147 | // Standard news row |
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148 | $news_row = array( |
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149 | 'S_NEWEST_OR_FIRST' => ($this->config['board3_news_show_last_' . $module_id]) ? $this->user->lang['JUMP_NEWEST'] : $this->user->lang['JUMP_FIRST'], |
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150 | 'POSTED_BY_TEXT' => ($this->config['board3_news_show_last_' . $module_id]) ? $this->user->lang['LAST_POST'] : $this->user->lang['POSTED'], |
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151 | 'S_DISPLAY_NEWS_RVS' => ($this->config['board3_show_news_replies_views_' . $module_id]) ? true : false, |
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152 | 'S_TOPIC_ICONS' => $topic_icons, |
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153 | 'MODULE_ID' => $module_id, |
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154 | ); |
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155 | |||
156 | // Any news present? If not terminate it here. |
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157 | if (sizeof($fetch_news) == 0) |
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158 | { |
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159 | // Create standard news row |
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160 | $this->template->assign_block_vars('news', $news_row); |
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161 | |||
162 | $this->template->assign_block_vars('news.news_row', array( |
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163 | 'S_NO_TOPICS' => true, |
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164 | 'S_NOT_LAST' => false, |
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165 | )); |
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166 | } |
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167 | else |
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168 | { |
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169 | // Count number of posts for news archive, considering if permission check is dis- or enabled. |
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170 | if ($this->config['board3_news_archive_' . $module_id]) |
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171 | { |
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172 | $permissions = $this->config['board3_news_permissions_' . $module_id]; |
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173 | $forum_from = $this->config['board3_news_forum_' . $module_id]; |
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174 | |||
175 | $forum_from = (strpos($forum_from, ',') !== false) ? explode(',', $forum_from) : (($forum_from != '') ? array($forum_from) : array()); |
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176 | |||
177 | $str_where = ''; |
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178 | |||
179 | // Get disallowed forums |
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180 | $disallow_access = $this->modules_helper->get_disallowed_forums($permissions); |
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181 | |||
182 | View Code Duplication | if ($this->config['board3_news_exclude_' . $module_id] == true) |
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183 | { |
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184 | $disallow_access = array_merge($disallow_access, $forum_from); |
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185 | $forum_from = array(); |
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186 | } |
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187 | |||
188 | if (sizeof($forum_from)) |
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189 | { |
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190 | $disallow_access = array_diff($forum_from, $disallow_access); |
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191 | if (!sizeof($disallow_access)) |
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192 | { |
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193 | return array(); |
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194 | } |
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195 | |||
196 | foreach ($disallow_access as $acc_id) |
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197 | { |
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198 | $acc_id = (int) $acc_id; |
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199 | $str_where .= "forum_id = $acc_id OR "; |
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200 | } |
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201 | } |
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202 | else |
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203 | { |
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204 | foreach ($disallow_access as $acc_id) |
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205 | { |
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206 | $acc_id = (int) $acc_id; |
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207 | $str_where .= "forum_id <> $acc_id AND "; |
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208 | } |
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209 | } |
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210 | |||
211 | $str_where = (strlen($str_where) > 0) ? 'AND (' . trim(substr($str_where, 0, -4)) . ')' : ''; |
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212 | |||
213 | $topic_type = ($this->config['board3_show_all_news_' . $module_id]) ? '(topic_type <> ' . POST_ANNOUNCE . ') AND (topic_type <> ' . POST_GLOBAL . ')' : 'topic_type = ' . POST_NORMAL; |
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214 | |||
215 | $sql = 'SELECT COUNT(topic_id) AS num_topics |
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216 | FROM ' . TOPICS_TABLE . ' |
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217 | WHERE ' . $topic_type . ' |
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218 | AND topic_visibility = ' . ITEM_APPROVED . ' |
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219 | AND topic_moved_id = 0 |
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220 | ' . $str_where; |
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221 | $result = $this->db->sql_query($sql, 30); |
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222 | $total_news = (int) $this->db->sql_fetchfield('num_topics'); |
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223 | $this->db->sql_freeresult($result); |
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224 | } |
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225 | |||
226 | $topic_tracking_info = get_portal_tracking_info($fetch_news); |
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227 | |||
228 | // Create pagination if necessary |
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229 | if ($this->config['board3_news_archive_' . $module_id]) |
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230 | { |
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231 | $pagination = generate_portal_pagination($this->modules_helper->route('board3_portal_controller'), $total_news, $this->config['board3_number_of_news_' . $module_id], $start, ($this->config['board3_show_all_news_' . $module_id]) ? 'news_all' : 'news', $module_id); |
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232 | } |
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233 | |||
234 | if ($this->config['board3_number_of_news_' . $module_id] <> 0 && $this->config['board3_news_archive_' . $module_id]) |
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235 | { |
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236 | $news_row = array_merge($news_row, array( |
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237 | 'NP_PAGINATION' => (!empty($pagination)) ? $pagination : '', |
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238 | 'TOTAL_NEWS' => ($total_news == 1) ? sprintf($this->user->lang['VIEW_FORUM_TOPICS'][1], $total_news) : sprintf($this->user->lang['VIEW_FORUM_TOPICS'][2], $total_news), |
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239 | 'NP_PAGE_NUMBER' => $this->pagination->on_page($total_news, $this->config['board3_number_of_news_' . $module_id], $start), |
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240 | )); |
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241 | } |
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242 | |||
243 | // Create standard news row |
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244 | $this->template->assign_block_vars('news', $news_row); |
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245 | |||
246 | // Show the news overview |
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247 | if ($news < 0) |
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248 | { |
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249 | $count = $fetch_news['topic_count']; |
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250 | for ($i = 0; $i < $count; $i++) |
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251 | { |
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252 | View Code Duplication | if (isset($fetch_news[$i]['striped']) && $fetch_news[$i]['striped'] == true) |
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253 | { |
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254 | $open_bracket = '[ '; |
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255 | $close_bracket = ' ]'; |
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256 | $read_full = $this->user->lang['READ_FULL']; |
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257 | } |
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258 | else |
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259 | { |
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260 | $open_bracket = ''; |
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261 | $close_bracket = ''; |
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262 | $read_full = ''; |
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263 | } |
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264 | // unread? |
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265 | $forum_id = $fetch_news[$i]['forum_id']; |
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266 | $topic_id = $fetch_news[$i]['topic_id']; |
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267 | $unread_topic = (isset($topic_tracking_info[$topic_id]) && $fetch_news[$i]['topic_last_post_time'] > $topic_tracking_info[$topic_id]) ? true : false; |
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268 | |||
269 | $read_full_url = ($this->request->is_set('np_' . $module_id)) ? "np_$module_id=$start&news_$module_id=$i#n_{$module_id}_$i" : "news_$module_id=$i#n_{$module_id}_$i"; |
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270 | $view_topic_url = append_sid("{$this->phpbb_root_path}viewtopic.{$this->php_ext}", 'f=' . (($fetch_news[$i]['forum_id']) ? $fetch_news[$i]['forum_id'] : $forum_id) . '&t=' . $topic_id); |
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271 | |||
272 | $replies = ($this->auth->acl_get('m_approve', $forum_id)) ? $fetch_news[$i]['topic_replies_real'] : $fetch_news[$i]['topic_replies']; |
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273 | |||
274 | View Code Duplication | switch ($fetch_news[$i]['topic_type']) |
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275 | { |
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276 | case POST_STICKY: |
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277 | $folder = 'sticky_read'; |
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278 | $folder_new = 'sticky_unread'; |
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279 | break; |
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280 | case POST_ANNOUNCE: |
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281 | $folder = 'announce_read'; |
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282 | $folder_new = 'announce_unread'; |
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283 | break; |
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284 | default: |
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285 | $folder = 'topic_read'; |
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286 | $folder_new = 'topic_unread'; |
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287 | if ($this->config['hot_threshold'] && $replies >= $this->config['hot_threshold'] && $fetch_news[$i]['topic_status'] != ITEM_LOCKED) |
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288 | { |
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289 | $folder .= '_hot'; |
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290 | $folder_new .= '_hot'; |
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291 | } |
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292 | break; |
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293 | } |
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294 | |||
295 | if ($fetch_news[$i]['topic_status'] == ITEM_LOCKED) |
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296 | { |
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297 | $folder .= '_locked'; |
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298 | $folder_new .= '_locked'; |
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299 | } |
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300 | if ($fetch_news[$i]['topic_posted']) |
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301 | { |
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302 | $folder .= '_mine'; |
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303 | $folder_new .= '_mine'; |
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304 | } |
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305 | |||
306 | $folder_img = ($unread_topic) ? $folder_new : $folder; |
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307 | $folder_alt = ($unread_topic) ? 'NEW_POSTS' : (($fetch_news[$i]['topic_status'] == ITEM_LOCKED) ? 'TOPIC_LOCKED' : 'NO_NEW_POSTS'); |
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308 | |||
309 | // Grab icons |
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310 | $icons = $this->cache->obtain_icons(); |
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311 | |||
312 | $this->template->assign_block_vars('news.news_row', array( |
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313 | 'ATTACH_ICON_IMG' => ($fetch_news[$i]['attachment'] && $this->config['allow_attachments']) ? $this->user->img('icon_topic_attach', $this->user->lang['TOTAL_ATTACHMENTS']) : '', |
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314 | 'FORUM_NAME' => ($forum_id) ? $fetch_news[$i]['forum_name'] : '', |
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315 | 'TITLE' => $fetch_news[$i]['topic_title'], |
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316 | 'POSTER' => $fetch_news[$i]['username'], |
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317 | 'POSTER_FULL' => $fetch_news[$i]['username_full'], |
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318 | 'USERNAME_FULL_LAST' => $fetch_news[$i]['username_full_last'], |
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319 | 'U_USER_PROFILE' => (($fetch_news[$i]['user_type'] == USER_NORMAL || $fetch_news[$i]['user_type'] == USER_FOUNDER) && $fetch_news[$i]['user_id'] != ANONYMOUS) ? append_sid("{$this->phpbb_root_path}memberlist.{$this->php_ext}", 'mode=viewprofile&u=' . $fetch_news[$i]['user_id']) : '', |
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320 | 'TIME' => $fetch_news[$i]['topic_time'], |
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321 | 'LAST_POST_TIME' => $this->user->format_date($fetch_news[$i]['topic_last_post_time']), |
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322 | 'TEXT' => $fetch_news[$i]['post_text'], |
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323 | 'REPLIES' => $fetch_news[$i]['topic_replies'], |
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324 | 'TOPIC_VIEWS' => $fetch_news[$i]['topic_views'], |
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325 | 'N_ID' => $i, |
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326 | 'TOPIC_FOLDER_IMG' => $this->user->img($folder_img, $folder_alt), |
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327 | 'TOPIC_IMG_STYLE' => $folder_img, |
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328 | 'TOPIC_FOLDER_IMG_SRC' => $this->user->img($folder_img, $folder_alt, false, '', 'src'), |
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329 | 'TOPIC_FOLDER_IMG_ALT' => $this->user->lang[$folder_alt], |
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330 | 'TOPIC_ICON_IMG' => (!empty($icons[$fetch_news[$i]['icon_id']])) ? $icons[$fetch_news[$i]['icon_id']]['img'] : '', |
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331 | 'TOPIC_ICON_IMG_WIDTH' => (!empty($icons[$fetch_news[$i]['icon_id']])) ? $icons[$fetch_news[$i]['icon_id']]['width'] : '', |
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332 | 'TOPIC_ICON_IMG_HEIGHT' => (!empty($icons[$fetch_news[$i]['icon_id']])) ? $icons[$fetch_news[$i]['icon_id']]['height'] : '', |
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333 | 'FOLDER_IMG' => $this->user->img('topic_read', 'NO_NEW_POSTS'), |
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334 | 'U_VIEWFORUM' => append_sid("{$this->phpbb_root_path}viewforum.{$this->php_ext}", 'f=' . $fetch_news[$i]['forum_id']), |
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335 | 'U_LAST_COMMENTS' => append_sid("{$this->phpbb_root_path}viewtopic.{$this->php_ext}", 'f=' . $fetch_news[$i]['forum_id'] . '&t=' . $fetch_news[$i]['topic_id'] . '&p=' . $fetch_news[$i]['topic_last_post_id'] . '#p' . $fetch_news[$i]['topic_last_post_id']), |
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336 | 'U_VIEW_COMMENTS' => append_sid("{$this->phpbb_root_path}viewtopic.{$this->php_ext}", 'f=' . $fetch_news[$i]['forum_id'] . '&t=' . $fetch_news[$i]['topic_id']), |
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337 | 'U_VIEW_UNREAD' => append_sid("{$this->phpbb_root_path}viewtopic.{$this->php_ext}", 'f=' . $fetch_news[$i]['forum_id'] . '&t=' . $fetch_news[$i]['topic_id'] . '&view=unread#unread'), |
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338 | 'U_POST_COMMENT' => append_sid("{$this->phpbb_root_path}posting.{$this->php_ext}", 'mode=reply&f=' . $fetch_news[$i]['forum_id'] . '&t=' . $fetch_news[$i]['topic_id']), |
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339 | 'U_READ_FULL' => $this->modules_helper->route('board3_portal_controller') . '?' . $read_full_url, |
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340 | 'L_READ_FULL' => $read_full, |
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341 | 'OPEN' => $open_bracket, |
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342 | 'CLOSE' => $close_bracket, |
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343 | 'S_NOT_LAST' => ($i < sizeof($fetch_news) - 1) ? true : false, |
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344 | 'S_POLL' => $fetch_news[$i]['poll'], |
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345 | 'S_UNREAD_INFO' => $unread_topic, |
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346 | 'S_HAS_ATTACHMENTS' => (!empty($fetch_news[$i]['attachments'])) ? true : false, |
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347 | )); |
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348 | |||
349 | // Assign pagination |
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350 | $this->pagination->generate_template_pagination($view_topic_url, 'news.news_row.pagination', 'start', $fetch_news[$i]['topic_replies'] + 1, $this->config['posts_per_page'], 1); |
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351 | |||
352 | View Code Duplication | if (!empty($fetch_news[$i]['attachments'])) |
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353 | { |
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354 | foreach ($fetch_news[$i]['attachments'] as $attachment) |
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355 | { |
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356 | $this->template->assign_block_vars('news.news_row.attachment', array( |
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357 | 'DISPLAY_ATTACHMENT' => $attachment) |
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358 | ); |
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359 | } |
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360 | } |
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361 | } |
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362 | } |
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363 | // Show "read full" page |
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364 | else |
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365 | { |
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366 | $i = $news; |
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367 | $forum_id = $fetch_news[$i]['forum_id']; |
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368 | $topic_id = $fetch_news[$i]['topic_id']; |
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369 | $unread_topic = (isset($topic_tracking_info[$topic_id]) && $fetch_news[$i]['topic_last_post_time'] > $topic_tracking_info[$topic_id]) ? true : false; |
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370 | $open_bracket = '[ '; |
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371 | $close_bracket = ' ]'; |
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372 | $read_full = $this->user->lang['BACK']; |
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373 | |||
374 | $read_full_url = ($this->request->is_set('np_' . $module_id)) ? $this->modules_helper->route('board3_portal_controller') . "?np_$module_id=$start#n_{$module_id}_$i" : $this->modules_helper->route('board3_portal_controller') . "#n_{$module_id}_$i"; |
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375 | $view_topic_url = append_sid("{$this->phpbb_root_path}viewtopic.{$this->php_ext}", 'f=' . (($fetch_news[$i]['forum_id']) ? $fetch_news[$i]['forum_id'] : $forum_id) . '&t=' . $topic_id); |
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376 | |||
377 | $this->template->assign_block_vars('news.news_row', array( |
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378 | 'ATTACH_ICON_IMG' => ($fetch_news[$i]['attachment'] && $this->config['allow_attachments']) ? $this->user->img('icon_topic_attach', $this->user->lang['TOTAL_ATTACHMENTS']) : '', |
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379 | 'FORUM_NAME' => ($forum_id) ? $fetch_news[$i]['forum_name'] : '', |
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380 | 'TITLE' => $fetch_news[$i]['topic_title'], |
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381 | 'POSTER' => $fetch_news[$i]['username'], |
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382 | 'POSTER_FULL' => $fetch_news[$i]['username_full'], |
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383 | 'TIME' => $fetch_news[$i]['topic_time'], |
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384 | 'TEXT' => $fetch_news[$i]['post_text'], |
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385 | 'REPLIES' => $fetch_news[$i]['topic_replies'], |
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386 | 'TOPIC_VIEWS' => $fetch_news[$i]['topic_views'], |
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387 | 'N_ID' => $i, |
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388 | 'U_VIEWFORUM' => append_sid("{$this->phpbb_root_path}viewforum.{$this->php_ext}", 'f=' . $fetch_news[$i]['forum_id']), |
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389 | 'U_LAST_COMMENTS' => append_sid("{$this->phpbb_root_path}viewtopic.{$this->php_ext}", 'p=' . $fetch_news[$i]['topic_last_post_id'] . '#p' . $fetch_news[$i]['topic_last_post_id']), |
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390 | 'U_VIEW_COMMENTS' => append_sid("{$this->phpbb_root_path}viewtopic.{$this->php_ext}", 'f=' . $fetch_news[$i]['forum_id'] . '&t=' . $fetch_news[$i]['topic_id']), |
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391 | 'U_POST_COMMENT' => append_sid("{$this->phpbb_root_path}posting.{$this->php_ext}", 'mode=reply&f=' . $fetch_news[$i]['forum_id'] . '&t=' . $fetch_news[$i]['topic_id']), |
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392 | 'S_POLL' => $fetch_news[$i]['poll'], |
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393 | 'S_UNREAD_INFO' => $unread_topic, |
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394 | 'U_READ_FULL' => $read_full_url, |
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395 | 'L_READ_FULL' => $read_full, |
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396 | 'OPEN' => $open_bracket, |
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397 | 'CLOSE' => $close_bracket, |
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398 | 'S_HAS_ATTACHMENTS' => (!empty($fetch_news[$i]['attachments'])) ? true : false, |
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399 | )); |
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400 | |||
401 | $this->pagination->generate_template_pagination($view_topic_url, 'news.news_row.pagination', 'start', $fetch_news[$i]['topic_replies'] + 1, $this->config['posts_per_page'], 1); |
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402 | |||
403 | View Code Duplication | if (!empty($fetch_news[$i]['attachments'])) |
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404 | { |
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405 | foreach ($fetch_news[$i]['attachments'] as $attachment) |
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406 | { |
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407 | $this->template->assign_block_vars('news.news_row.attachment', array( |
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408 | 'DISPLAY_ATTACHMENT' => $attachment) |
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409 | ); |
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410 | } |
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411 | } |
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412 | } |
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413 | } |
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414 | |||
415 | $this->template->assign_vars(array( |
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416 | 'NEWEST_POST_IMG' => $this->user->img('icon_topic_newest', 'VIEW_NEWEST_POST'), |
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417 | 'READ_POST_IMG' => $this->user->img('icon_topic_latest', 'VIEW_LATEST_POST'), |
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418 | 'GOTO_PAGE_IMG' => $this->user->img('icon_post_target', 'GOTO_PAGE'), |
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419 | )); |
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420 | |||
421 | if ($this->config['board3_news_style_' . $module_id]) |
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422 | { |
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423 | return 'news_compact_center.html'; |
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424 | } |
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425 | else |
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426 | { |
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427 | return 'news_center.html'; |
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428 | } |
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429 | } |
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430 | |||
431 | /** |
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432 | * {@inheritdoc} |
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433 | */ |
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434 | public function get_template_acp($module_id) |
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453 | |||
454 | /** |
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455 | * {@inheritdoc} |
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456 | */ |
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457 | public function install($module_id) |
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471 | |||
472 | /** |
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473 | * {@inheritdoc} |
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474 | */ |
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475 | public function uninstall($module_id, $db) |
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493 | } |
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494 |