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 admin_controller 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 admin_controller, and based on these observations, apply Extract Interface, too.
1 | <?php |
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18 | class admin_controller |
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19 | { |
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20 | /** @var \phpbb\template\template */ |
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21 | protected $template; |
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22 | |||
23 | /** @var \phpbb\language\language */ |
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24 | protected $language; |
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25 | |||
26 | /** @var \phpbb\request\request */ |
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27 | protected $request; |
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28 | |||
29 | /** @var \phpbb\ads\ad\manager */ |
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30 | protected $manager; |
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31 | |||
32 | /** @var \phpbb\config\db_text */ |
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33 | protected $config_text; |
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34 | |||
35 | /** @var \phpbb\config\config */ |
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36 | protected $config; |
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37 | |||
38 | /** @var \phpbb\group\helper */ |
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39 | protected $group_helper; |
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40 | |||
41 | /** @var \phpbb\ads\controller\admin_input */ |
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42 | protected $input; |
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43 | |||
44 | /** @var \phpbb\ads\controller\admin_helper */ |
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45 | protected $helper; |
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46 | |||
47 | /** @var string root_path */ |
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48 | protected $root_path; |
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49 | |||
50 | /** @var string php_ext */ |
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51 | protected $php_ext; |
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52 | |||
53 | /** @var string Custom form action */ |
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54 | protected $u_action; |
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55 | |||
56 | /** |
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57 | * Constructor |
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58 | * |
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59 | * @param \phpbb\template\template $template Template object |
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60 | * @param \phpbb\language\language $language Language object |
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61 | * @param \phpbb\request\request $request Request object |
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62 | * @param \phpbb\ads\ad\manager $manager Advertisement manager object |
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63 | * @param \phpbb\config\db_text $config_text Config text object |
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64 | * @param \phpbb\config\config $config Config object |
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65 | * @param \phpbb\group\helper $group_helper Group helper object |
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66 | * @param \phpbb\ads\controller\admin_input $input Admin input object |
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67 | * @param \phpbb\ads\controller\admin_helper $helper Admin helper object |
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68 | * @param string $root_path phpBB root path |
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69 | * @param string $php_ext PHP extension |
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70 | */ |
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71 | public function __construct(\phpbb\template\template $template, \phpbb\language\language $language, \phpbb\request\request $request, \phpbb\ads\ad\manager $manager, \phpbb\config\db_text $config_text, \phpbb\config\config $config, \phpbb\group\helper $group_helper, \phpbb\ads\controller\admin_input $input, \phpbb\ads\controller\admin_helper $helper, $root_path, $php_ext) |
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72 | { |
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73 | $this->template = $template; |
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74 | $this->language = $language; |
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75 | $this->request = $request; |
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76 | $this->manager = $manager; |
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77 | $this->config_text = $config_text; |
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78 | $this->config = $config; |
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79 | $this->group_helper = $group_helper; |
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80 | $this->input = $input; |
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81 | $this->helper = $helper; |
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82 | $this->root_path = $root_path; |
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83 | $this->php_ext = $php_ext; |
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84 | 48 | } |
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85 | |||
86 | 48 | /** |
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87 | 48 | * Process user request for manage mode |
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88 | 48 | * |
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89 | 48 | * @return void |
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90 | 48 | */ |
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91 | 48 | public function mode_manage() |
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105 | |||
106 | 6 | /** |
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107 | * Process user request for settings mode |
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108 | 6 | * |
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109 | * @return void |
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110 | 6 | */ |
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111 | 6 | public function mode_settings() |
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112 | { |
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113 | $this->setup(); |
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114 | |||
115 | add_form_key('phpbb/ads/settings'); |
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116 | 6 | if ($this->request->is_set_post('submit')) |
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117 | 6 | { |
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118 | 6 | // Validate form key |
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119 | 5 | if (check_form_key('phpbb/ads/settings')) |
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120 | 5 | { |
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121 | $this->config->set('phpbb_ads_adblocker_message', $this->request->variable('adblocker_message', 0)); |
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122 | $this->config->set('phpbb_ads_enable_views', $this->request->variable('enable_views', 0)); |
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123 | 6 | $this->config->set('phpbb_ads_enable_clicks', $this->request->variable('enable_clicks', 0)); |
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124 | 6 | $this->config_text->set('phpbb_ads_hide_groups', json_encode($this->request->variable('hide_groups', array(0)))); |
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125 | |||
126 | $this->success('ACP_AD_SETTINGS_SAVED'); |
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127 | } |
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128 | |||
129 | $this->helper->assign_errors(array($this->language->lang('FORM_INVALID'))); |
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130 | } |
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131 | 3 | ||
132 | $hide_groups = json_decode($this->config_text->get('phpbb_ads_hide_groups'), true); |
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133 | 3 | $groups = $this->manager->load_groups(); |
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134 | View Code Duplication | foreach ($groups as $group) |
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135 | 3 | { |
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136 | 3 | $this->template->assign_block_vars('groups', array( |
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137 | 3 | 'ID' => $group['group_id'], |
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138 | 'NAME' => $this->group_helper->get_name($group['group_name']), |
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139 | 2 | 'S_SELECTED' => in_array($group['group_id'], $hide_groups), |
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140 | 2 | )); |
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141 | 1 | } |
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142 | 1 | ||
143 | $this->template->assign_vars(array( |
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144 | 2 | 'U_ACTION' => $this->u_action, |
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145 | 2 | 'ADBLOCKER_MESSAGE' => $this->config['phpbb_ads_adblocker_message'], |
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146 | 1 | 'ENABLE_VIEWS' => $this->config['phpbb_ads_enable_views'], |
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147 | 1 | 'ENABLE_CLICKS' => $this->config['phpbb_ads_enable_clicks'], |
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148 | 1 | )); |
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149 | 1 | } |
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150 | |||
151 | 1 | /** |
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152 | * Set page url |
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153 | * |
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154 | 1 | * @param string $u_action Custom form action |
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155 | 1 | * @return void |
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156 | 1 | */ |
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157 | 1 | public function set_page_url($u_action) |
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161 | 2 | ||
162 | 2 | /** |
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163 | * Get ACP page title for Ads module |
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164 | 2 | * |
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165 | * @return string Language string for Ads ACP module |
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166 | 2 | */ |
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167 | 2 | public function get_page_title() |
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168 | 2 | { |
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169 | 2 | return $this->language->lang('ACP_PHPBB_ADS_TITLE'); |
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170 | 2 | } |
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171 | 2 | ||
172 | /** |
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173 | 2 | * Add an advertisement |
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174 | 2 | * |
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175 | 2 | * @return void |
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176 | 2 | */ |
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177 | 2 | public function action_add() |
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178 | 2 | { |
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179 | 2 | $preview = $this->request->is_set_post('preview'); |
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180 | $submit = $this->request->is_set_post('submit'); |
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181 | $upload_banner = $this->request->is_set_post('upload_banner'); |
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182 | |||
183 | add_form_key('phpbb/ads/add'); |
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184 | if ($preview || $submit || $upload_banner) |
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185 | { |
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186 | $data = $this->input->get_form_data('phpbb/ads/add'); |
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187 | 42 | ||
188 | View Code Duplication | if ($preview) |
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189 | 42 | { |
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190 | 42 | $this->ad_preview($data['ad_code']); |
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191 | } |
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192 | else if ($upload_banner) |
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193 | { |
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194 | $data['ad_code'] = $this->input->banner_upload($data['ad_code']); |
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195 | } |
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196 | else if (!$this->input->has_errors()) |
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197 | 1 | { |
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198 | $ad_id = $this->manager->insert_ad($data); |
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199 | 1 | $this->manager->insert_ad_locations($ad_id, $data['ad_locations']); |
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200 | |||
201 | $this->helper->log('ADD', $data['ad_name']); |
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202 | |||
203 | $this->success('ACP_AD_ADD_SUCCESS'); |
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204 | } |
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205 | |||
206 | $this->helper->assign_locations($data['ad_locations']); |
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207 | 15 | $this->helper->assign_form_data($data); |
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208 | $this->helper->assign_errors($this->input->get_errors()); |
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209 | 15 | } |
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210 | 15 | else |
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211 | 15 | { |
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212 | $this->helper->assign_locations(); |
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213 | 15 | } |
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214 | 15 | ||
215 | 15 | // Set output vars for display in the template |
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216 | 14 | $this->template->assign_vars(array( |
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217 | 'S_ADD_AD' => true, |
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218 | 'U_BACK' => $this->u_action, |
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219 | 14 | 'U_ACTION' => "{$this->u_action}&action=add", |
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220 | 1 | 'PICKER_DATE_FORMAT' => input::DATE_FORMAT, |
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221 | 1 | 'U_FIND_USERNAME' => $this->helper->get_find_username_link(), |
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222 | )); |
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223 | 13 | } |
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224 | 2 | ||
225 | 2 | /** |
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226 | * Edit an advertisement |
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227 | 11 | * |
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228 | 1 | * @return void |
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229 | 1 | */ |
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230 | public function action_edit() |
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231 | 1 | { |
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232 | $ad_id = $this->request->variable('id', 0); |
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233 | 1 | $preview = $this->request->is_set_post('preview'); |
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234 | $submit = $this->request->is_set_post('submit'); |
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235 | $upload_banner = $this->request->is_set_post('upload_banner'); |
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236 | 13 | ||
237 | 13 | add_form_key('phpbb/ads/edit/' . $ad_id); |
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238 | 13 | if ($preview || $submit || $upload_banner) |
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239 | { |
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240 | $data = $this->input->get_form_data('phpbb/ads/edit/' . $ad_id); |
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241 | 1 | ||
242 | if ($preview) |
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243 | { |
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244 | $this->ad_preview($data['ad_code']); |
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245 | 14 | } |
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246 | 14 | View Code Duplication | else if ($upload_banner) |
247 | 14 | { |
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248 | 14 | $data['ad_code'] = $this->input->banner_upload($data['ad_code']); |
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249 | 14 | } |
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250 | 14 | else if (!$this->input->has_errors()) |
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251 | 14 | { |
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252 | 14 | $success = $this->manager->update_ad($ad_id, $data); |
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253 | |||
254 | if ($success) |
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255 | { |
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256 | // Only insert new ad locations to DB when ad exists |
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257 | $this->manager->delete_ad_locations($ad_id); |
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258 | $this->manager->insert_ad_locations($ad_id, $data['ad_locations']); |
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259 | 15 | ||
260 | $this->helper->log('EDIT', $data['ad_name']); |
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261 | 15 | ||
262 | 15 | $this->success('ACP_AD_EDIT_SUCCESS'); |
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263 | 15 | } |
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264 | 15 | ||
265 | $this->error('ACP_AD_DOES_NOT_EXIST'); |
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266 | 15 | } |
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267 | 15 | } |
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268 | 15 | else |
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269 | 13 | { |
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270 | $data = $this->manager->get_ad($ad_id); |
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271 | if (empty($data)) |
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272 | 13 | { |
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273 | 1 | $this->error('ACP_AD_DOES_NOT_EXIST'); |
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274 | 1 | } |
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275 | |||
276 | 12 | // Load ad template locations |
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277 | $data['ad_locations'] = $this->manager->get_ad_locations($ad_id); |
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278 | } |
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279 | |||
280 | 12 | // Set output vars for display in the template |
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281 | 2 | $this->template->assign_vars(array( |
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282 | 'S_EDIT_AD' => true, |
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283 | 'EDIT_ID' => $ad_id, |
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284 | 2 | 'U_BACK' => $this->u_action, |
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285 | 'U_ACTION' => "{$this->u_action}&action=edit&id=" . $ad_id, |
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286 | 1 | 'PICKER_DATE_FORMAT' => input::DATE_FORMAT, |
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287 | 1 | 'U_FIND_USERNAME' => $this->helper->get_find_username_link(), |
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288 | )); |
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289 | 1 | $this->helper->assign_locations($data['ad_locations']); |
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290 | $this->helper->assign_form_data($data); |
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291 | 1 | $this->helper->assign_errors($this->input->get_errors()); |
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292 | } |
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293 | |||
294 | 1 | /** |
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295 | * Enable an advertisement |
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296 | 11 | * |
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297 | * @return void |
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298 | */ |
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299 | 2 | public function action_enable() |
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300 | 2 | { |
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301 | 2 | $this->ad_enable(true); |
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302 | 1 | } |
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303 | |||
304 | /** |
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305 | * Disable an advertisement |
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306 | 1 | * |
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307 | * @return void |
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308 | */ |
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309 | public function action_disable() |
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313 | 12 | ||
314 | 12 | /** |
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315 | 12 | * Delete an advertisement |
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316 | 12 | * |
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317 | 12 | * @return void |
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318 | 12 | */ |
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319 | 12 | public function action_delete() |
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359 | 2 | ||
360 | /** |
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361 | * Display the ads |
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362 | 2 | * |
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363 | 2 | * @return void |
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364 | 1 | */ |
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365 | public function list_ads() |
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400 | 1 | ||
401 | 1 | /** |
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402 | 1 | * Perform general tasks |
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403 | 1 | * |
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404 | 1 | * @return void |
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405 | */ |
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406 | 1 | protected function setup() |
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418 | 1 | ||
419 | 1 | /** |
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420 | * Enable/disable an advertisement |
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421 | * |
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422 | 1 | * @param bool $enable Enable or disable the advertisement? |
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423 | 1 | * @return void |
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424 | 1 | */ |
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425 | 1 | protected function ad_enable($enable) |
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453 | 4 | ||
454 | 4 | /** |
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455 | * Prepare advertisement preview |
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456 | * |
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457 | 4 | * @param string $code Ad code to preview |
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458 | 4 | * @return void |
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459 | */ |
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460 | protected function ad_preview($code) |
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464 | |||
465 | /** |
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466 | * Print success message. |
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467 | * |
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468 | 4 | * It takes arguments in the form of a language key, followed by language substitution values. |
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469 | 2 | */ |
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470 | protected function success() |
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474 | |||
475 | /** |
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476 | * Print error message. |
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477 | * |
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478 | * It takes arguments in the form of a language key, followed by language substitution values. |
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479 | */ |
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480 | protected function error() |
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484 | } |
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485 |