Complex classes like Index 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 Index, and based on these observations, apply Extract Interface, too.
1 | <?php |
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26 | class Index { |
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27 | use |
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28 | Singleton, |
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29 | Router; |
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30 | |||
31 | protected $working_directory; |
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32 | /** |
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33 | * Executes plugins processing, blocks and module page generation |
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34 | * |
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35 | * @todo make public |
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36 | * |
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37 | * @throws ExitException |
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38 | */ |
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39 | protected function process_request () { |
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40 | $Config = Config::instance(); |
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41 | $Request = Request::instance(); |
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42 | $this->working_directory = ''; |
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43 | $this->controller_path = ['index']; |
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44 | $this->handle_closed_site(!$Config->core['site_mode'], $Request); |
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45 | $this->working_directory = MODULES."/$Request->current_module"; |
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46 | if ($Request->admin_path) { |
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47 | $this->working_directory .= '/admin'; |
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48 | } elseif ($Request->api_path) { |
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49 | $this->working_directory .= '/api'; |
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50 | } |
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51 | if (!is_dir($this->working_directory)) { |
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52 | throw new ExitException(404); |
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53 | } |
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54 | if (!$this->check_permission('index')) { |
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55 | throw new ExitException(403); |
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56 | } |
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57 | Event::instance()->fire('System/Index/construct'); |
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58 | /** |
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59 | * Plugins processing |
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60 | */ |
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61 | foreach ($Config->components['plugins'] as $plugin) { |
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62 | _include(PLUGINS."/$plugin/index.php", false, false); |
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63 | } |
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64 | _include("$this->working_directory/prepare.php", false, false); |
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65 | if (!preg_match('/^[a-z_]+$/', strtolower($Request->method))) { |
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66 | throw new ExitException(400); |
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67 | } |
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68 | Event::instance()->fire('System/Index/load/before'); |
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69 | /** |
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70 | * Title only for non-API calls |
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71 | */ |
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72 | $Request->api_path || $this->render_title(); |
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73 | $this->render_content(); |
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74 | /** |
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75 | * Blocks only for non-API calls |
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76 | */ |
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77 | $Request->api_path || $this->render_blocks(); |
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78 | Event::instance()->fire('System/Index/load/after'); |
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79 | } |
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80 | /** |
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81 | * @param bool $closed_site |
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82 | * @param Request $Request |
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83 | * |
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84 | * @throws ExitException |
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85 | */ |
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86 | protected function handle_closed_site ($closed_site, $Request) { |
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87 | if (!$closed_site) { |
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88 | return; |
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89 | } |
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90 | /** |
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91 | * If site is closed |
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92 | */ |
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93 | if (!$this->allow_closed_site_request($Request)) { |
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94 | throw new ExitException( |
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95 | [ |
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96 | get_core_ml_text('closed_title'), |
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97 | get_core_ml_text('closed_text') |
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98 | ], |
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99 | 503 |
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100 | ); |
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101 | } |
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102 | /** |
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103 | * Warning about closed site for administrator |
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104 | */ |
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105 | Page::instance()->warning(get_core_ml_text('closed_title')); |
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106 | } |
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107 | /** |
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108 | * Check if visitor is allowed to make current request to closed site |
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109 | * |
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110 | * @param Request $Request |
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111 | * |
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112 | * @return bool |
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113 | */ |
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114 | protected function allow_closed_site_request ($Request) { |
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123 | /** |
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124 | * Check whether user allowed to access to specified label |
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125 | * |
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126 | * @param string $label |
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127 | * |
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128 | * @return bool |
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129 | */ |
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130 | protected function check_permission ($label) { |
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140 | /** |
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141 | * Render page title |
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142 | */ |
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143 | protected function render_title () { |
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159 | /** |
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160 | * Render page content (without blocks, just module content) |
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161 | * |
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162 | * @throws ExitException |
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163 | */ |
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164 | protected function render_content () { |
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177 | /** |
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178 | * Blocks rendering |
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179 | */ |
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180 | protected function render_blocks () { |
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263 | /** |
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264 | * Check whether to render block or not based on its properties (active state, when start to show, when it expires and permissions) |
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265 | * |
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266 | * @param array $block |
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267 | * |
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268 | * @return bool |
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269 | */ |
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270 | protected function should_block_be_rendered ($block) { |
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280 | /** |
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281 | * @param string $text |
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282 | * |
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283 | * @return string |
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284 | */ |
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285 | protected function ml_process ($text) { |
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288 | /** |
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289 | * Getter for `controller_path` property (no other properties supported currently) |
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290 | * |
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291 | * @param string $property |
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292 | * |
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293 | * @return false|string[] |
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294 | */ |
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295 | function __get ($property) { |
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302 | /** |
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303 | * Executes plugins processing, blocks and module page generation |
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304 | * |
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305 | * @todo deprecate in favor of `::process_request()` |
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306 | * |
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307 | * @throws ExitException |
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308 | */ |
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309 | function __finish () { |
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312 | } |
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313 |