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 array Form data */ |
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| 21 | protected $data = array(); |
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| 22 | |||
| 23 | /** @var \phpbb\template\template */ |
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| 24 | protected $template; |
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| 25 | |||
| 26 | /** @var \phpbb\language\language */ |
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| 27 | protected $language; |
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| 28 | |||
| 29 | /** @var \phpbb\request\request */ |
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| 30 | protected $request; |
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| 31 | |||
| 32 | /** @var \phpbb\ads\ad\manager */ |
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| 33 | protected $manager; |
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| 34 | |||
| 35 | /** @var \phpbb\config\db_text */ |
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| 36 | protected $config_text; |
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| 37 | |||
| 38 | /** @var \phpbb\config\config */ |
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| 39 | protected $config; |
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| 40 | |||
| 41 | /** @var \phpbb\group\helper */ |
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| 42 | protected $group_helper; |
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| 43 | |||
| 44 | /** @var \phpbb\ads\controller\admin_input */ |
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| 45 | protected $input; |
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| 46 | |||
| 47 | /** @var \phpbb\ads\controller\admin_helper */ |
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| 48 | protected $helper; |
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| 49 | |||
| 50 | /** @var \phpbb\ads\analyser\manager */ |
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| 51 | protected $analyser; |
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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 \phpbb\ads\analyser\manager $analyser Ad code analyser object |
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| 69 | * @param string $root_path phpBB root path |
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| 70 | * @param string $php_ext PHP extension |
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| 71 | */ |
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| 72 | 33 | 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, \phpbb\ads\analyser\manager $analyser, $root_path, $php_ext) |
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| 73 | { |
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| 74 | 33 | $this->template = $template; |
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| 75 | 33 | $this->language = $language; |
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| 76 | 33 | $this->request = $request; |
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| 77 | 33 | $this->manager = $manager; |
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| 78 | 33 | $this->config_text = $config_text; |
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| 79 | 33 | $this->config = $config; |
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| 80 | 33 | $this->group_helper = $group_helper; |
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| 81 | 33 | $this->input = $input; |
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| 82 | 33 | $this->helper = $helper; |
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| 83 | 33 | $this->analyser = $analyser; |
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| 84 | |||
| 85 | // VSE doesn't like this here, but it's really the best placement: |
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| 86 | // 1. It is only called once |
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| 87 | // 2. We need all this everywhere in ACP |
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| 88 | 33 | if (!function_exists('user_get_id_name')) |
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| 89 | 33 | { |
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| 90 | include $root_path . 'includes/functions_user.' . $php_ext; |
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| 91 | } |
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| 92 | |||
| 93 | 33 | $this->language->add_lang('posting'); // Used by banner_upload() file errors |
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| 94 | 33 | $this->language->add_lang('acp', 'phpbb/ads'); |
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| 95 | |||
| 96 | 33 | $this->template->assign_var('S_PHPBB_ADS', true); |
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| 97 | 33 | } |
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| 98 | |||
| 99 | /** |
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| 100 | * Set page url |
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| 101 | * |
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| 102 | * @param string $u_action Custom form action |
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| 103 | * @return void |
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| 104 | */ |
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| 105 | 27 | public function set_page_url($u_action) |
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| 106 | { |
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| 107 | 27 | $this->u_action = $u_action; |
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| 108 | 27 | } |
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| 109 | |||
| 110 | /** |
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| 111 | * Get ACP page title for Ads module |
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| 112 | * |
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| 113 | * @return string Language string for Ads ACP module |
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| 114 | */ |
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| 115 | 1 | public function get_page_title() |
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| 116 | { |
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| 117 | 1 | return $this->language->lang('ACP_PHPBB_ADS_TITLE'); |
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| 118 | } |
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| 119 | |||
| 120 | /** |
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| 121 | * Process user request for settings mode |
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| 122 | * |
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| 123 | * @return void |
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| 124 | */ |
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| 125 | 3 | public function mode_settings() |
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| 126 | { |
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| 127 | 3 | add_form_key('phpbb/ads/settings'); |
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| 128 | 3 | if ($this->request->is_set_post('submit')) |
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| 129 | 3 | { |
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| 130 | // Validate form key |
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| 131 | 2 | if (check_form_key('phpbb/ads/settings')) |
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| 132 | 2 | { |
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| 133 | 1 | $this->config->set('phpbb_ads_adblocker_message', $this->request->variable('adblocker_message', 0)); |
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| 134 | 1 | $this->config->set('phpbb_ads_enable_views', $this->request->variable('enable_views', 0)); |
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| 135 | 1 | $this->config->set('phpbb_ads_enable_clicks', $this->request->variable('enable_clicks', 0)); |
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| 136 | 1 | $this->config_text->set('phpbb_ads_hide_groups', json_encode($this->request->variable('hide_groups', array(0)))); |
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| 137 | |||
| 138 | 1 | $this->success('ACP_AD_SETTINGS_SAVED'); |
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| 139 | } |
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| 140 | |||
| 141 | 1 | $this->error('FORM_INVALID'); |
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| 142 | } |
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| 143 | |||
| 144 | 1 | $hide_groups = json_decode($this->config_text->get('phpbb_ads_hide_groups'), true); |
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| 145 | 1 | $groups = $this->manager->load_groups(); |
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| 146 | 1 | View Code Duplication | foreach ($groups as $group) |
| 147 | { |
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| 148 | 1 | $this->template->assign_block_vars('groups', array( |
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| 149 | 1 | 'ID' => $group['group_id'], |
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| 150 | 1 | 'NAME' => $this->group_helper->get_name($group['group_name']), |
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| 151 | 1 | 'S_SELECTED' => in_array($group['group_id'], $hide_groups), |
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| 152 | 1 | )); |
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| 153 | 1 | } |
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| 154 | |||
| 155 | 1 | $this->template->assign_vars(array( |
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| 156 | 1 | 'U_ACTION' => $this->u_action, |
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| 157 | 1 | 'ADBLOCKER_MESSAGE' => $this->config['phpbb_ads_adblocker_message'], |
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| 158 | 1 | 'ENABLE_VIEWS' => $this->config['phpbb_ads_enable_views'], |
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| 159 | 1 | 'ENABLE_CLICKS' => $this->config['phpbb_ads_enable_clicks'], |
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| 160 | 1 | )); |
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| 161 | 1 | } |
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| 162 | |||
| 163 | /** |
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| 164 | * Process user request for manage mode |
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| 165 | * |
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| 166 | * @return void |
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| 167 | */ |
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| 168 | 29 | public function mode_manage() |
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| 169 | { |
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| 170 | // Trigger specific action |
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| 171 | 29 | $action = $this->request->variable('action', ''); |
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| 172 | 29 | if (in_array($action, array('add', 'edit', 'enable', 'disable', 'delete'))) |
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| 173 | 29 | { |
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| 174 | 27 | $this->{'action_' . $action}(); |
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| 175 | 15 | } |
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| 176 | else |
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| 177 | { |
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| 178 | // Otherwise default to this |
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| 179 | 2 | $this->list_ads(); |
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| 180 | } |
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| 181 | 17 | } |
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| 182 | |||
| 183 | /** |
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| 184 | * Add an advertisement |
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| 185 | * |
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| 186 | * @return void |
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| 187 | */ |
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| 188 | 16 | protected function action_add() |
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| 189 | { |
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| 190 | 6 | add_form_key('phpbb/ads/add'); |
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| 191 | |||
| 192 | 6 | $action = $this->get_submitted_action(); |
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| 193 | if ($action) |
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| 194 | 6 | { |
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| 195 | 5 | $this->data = $this->input->get_form_data('phpbb/ads/add'); |
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| 196 | 16 | $this->{$action}(); |
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| 197 | 4 | $this->helper->assign_data($this->data, $this->input->get_errors()); |
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| 198 | 4 | } |
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| 199 | else |
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| 200 | { |
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| 201 | 1 | $this->helper->assign_locations(); |
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| 202 | } |
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| 203 | |||
| 204 | // Set output vars for display in the template |
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| 205 | 5 | $this->template->assign_vars(array( |
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| 206 | 5 | 'S_ADD_AD' => true, |
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| 207 | 5 | 'U_BACK' => $this->u_action, |
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| 208 | 5 | 'U_ACTION' => "{$this->u_action}&action=add", |
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| 209 | 5 | 'PICKER_DATE_FORMAT' => input::DATE_FORMAT, |
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| 210 | 5 | 'U_FIND_USERNAME' => $this->helper->get_find_username_link(), |
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| 211 | 5 | )); |
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| 212 | 5 | } |
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| 213 | |||
| 214 | /** |
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| 215 | * Edit an advertisement |
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| 216 | * |
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| 217 | * @return void |
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| 218 | */ |
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| 219 | 7 | protected function action_edit() |
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| 220 | { |
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| 221 | 7 | $ad_id = $this->request->variable('id', 0); |
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| 222 | 7 | add_form_key('phpbb/ads/edit/' . $ad_id); |
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| 223 | |||
| 224 | 7 | $action = $this->get_submitted_action(); |
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| 225 | if ($action) |
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| 226 | 7 | { |
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| 227 | 5 | $this->data = $this->input->get_form_data('phpbb/ads/edit/' . $ad_id); |
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| 228 | 5 | $this->{$action}(); |
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| 229 | 3 | } |
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| 230 | else |
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| 231 | { |
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| 232 | 2 | $this->data = $this->manager->get_ad($ad_id); |
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| 233 | 2 | if (empty($this->data)) |
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| 234 | 2 | { |
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| 235 | 1 | $this->error('ACP_AD_DOES_NOT_EXIST'); |
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| 236 | } |
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| 237 | |||
| 238 | // Load ad template locations |
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| 239 | 1 | $this->data['ad_locations'] = $this->manager->get_ad_locations($ad_id); |
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| 240 | } |
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| 241 | |||
| 242 | // Set output vars for display in the template |
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| 243 | 4 | $this->template->assign_vars(array( |
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| 244 | 4 | 'S_EDIT_AD' => true, |
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| 245 | 4 | 'EDIT_ID' => $ad_id, |
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| 246 | 4 | 'U_BACK' => $this->u_action, |
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| 247 | 4 | 'U_ACTION' => "{$this->u_action}&action=edit&id=$ad_id", |
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| 248 | 4 | 'PICKER_DATE_FORMAT' => input::DATE_FORMAT, |
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| 249 | 4 | 'U_FIND_USERNAME' => $this->helper->get_find_username_link(), |
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| 250 | 4 | )); |
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| 251 | 4 | $this->helper->assign_data($this->data, $this->input->get_errors()); |
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| 252 | 4 | } |
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| 253 | |||
| 254 | /** |
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| 255 | * Enable an advertisement |
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| 256 | * |
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| 257 | * @return void |
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| 258 | */ |
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| 259 | 4 | protected function action_enable() |
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| 260 | { |
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| 261 | 4 | $this->ad_enable(true); |
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| 262 | 1 | } |
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| 263 | |||
| 264 | /** |
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| 265 | * Disable an advertisement |
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| 266 | * |
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| 267 | * @return void |
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| 268 | */ |
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| 269 | 4 | protected function action_disable() |
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| 270 | { |
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| 271 | 4 | $this->ad_enable(false); |
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| 272 | 1 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * Delete an advertisement |
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| 276 | * |
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| 277 | * @return void |
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| 278 | */ |
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| 279 | 3 | protected function action_delete() |
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| 280 | { |
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| 281 | 3 | $ad_id = $this->request->variable('id', 0); |
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| 282 | if ($ad_id) |
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| 283 | 3 | { |
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| 284 | 3 | if (confirm_box(true)) |
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| 285 | 3 | { |
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| 286 | // Get ad data so that we can log ad name |
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| 287 | 2 | $ad_data = $this->manager->get_ad($ad_id); |
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| 288 | |||
| 289 | // Delete ad and it's template locations |
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| 290 | 2 | $this->manager->delete_ad_locations($ad_id); |
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| 291 | 2 | $success = $this->manager->delete_ad($ad_id); |
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| 292 | |||
| 293 | // Only notify user on error or if not ajax |
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| 294 | 2 | if (!$success) |
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| 295 | 2 | { |
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| 296 | 1 | $this->error('ACP_AD_DELETE_ERRORED'); |
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| 297 | } |
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| 298 | else |
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| 299 | { |
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| 300 | 1 | $this->helper->log('DELETE', $ad_data['ad_name']); |
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| 301 | |||
| 302 | 1 | if (!$this->request->is_ajax()) |
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| 303 | 1 | { |
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| 304 | 1 | $this->success('ACP_AD_DELETE_SUCCESS'); |
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| 305 | } |
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| 306 | } |
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| 307 | } |
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| 308 | else |
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| 309 | { |
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| 310 | 1 | confirm_box(false, $this->language->lang('CONFIRM_OPERATION'), build_hidden_fields(array( |
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| 311 | 1 | 'id' => $ad_id, |
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| 312 | 1 | 'i' => $this->request->variable('i', ''), |
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| 313 | 1 | 'mode' => $this->request->variable('mode', ''), |
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| 314 | 1 | 'action' => 'delete', |
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| 315 | 1 | ))); |
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| 316 | } |
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| 317 | 1 | } |
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| 318 | 1 | } |
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| 319 | |||
| 320 | /** |
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| 321 | * Display the list of all ads |
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| 322 | * |
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| 323 | * @return void |
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| 324 | */ |
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| 325 | 1 | protected function list_ads() |
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| 326 | { |
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| 327 | 1 | foreach ($this->manager->get_all_ads() as $row) |
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| 328 | { |
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| 329 | 1 | $ad_enabled = (int) $row['ad_enabled']; |
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| 330 | 1 | $ad_expired = $this->helper->is_expired($row); |
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| 331 | |||
| 332 | 1 | if ($ad_expired && $ad_enabled) |
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| 333 | 1 | { |
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| 334 | $ad_enabled = 0; |
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| 335 | $this->manager->update_ad($row['ad_id'], array('ad_enabled' => 0)); |
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| 336 | } |
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| 337 | |||
| 338 | 1 | $this->template->assign_block_vars($ad_expired ? 'expired' : 'ads', array( |
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| 339 | 1 | 'NAME' => $row['ad_name'], |
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| 340 | 1 | 'PRIORITY' => $row['ad_priority'], |
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| 341 | 1 | 'END_DATE' => $this->helper->prepare_end_date($row['ad_end_date']), |
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| 342 | 1 | 'VIEWS' => $row['ad_views'], |
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| 343 | 1 | 'CLICKS' => $row['ad_clicks'], |
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| 344 | 1 | 'VIEWS_LIMIT' => $row['ad_views_limit'], |
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| 345 | 1 | 'CLICKS_LIMIT' => $row['ad_clicks_limit'], |
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| 346 | 1 | 'S_EXPIRED' => $ad_expired, |
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| 347 | 1 | 'S_ENABLED' => $ad_enabled, |
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| 348 | 1 | 'U_ENABLE' => $this->u_action . '&action=' . ($ad_enabled ? 'disable' : 'enable') . '&id=' . $row['ad_id'], |
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| 349 | 1 | 'U_EDIT' => $this->u_action . '&action=edit&id=' . $row['ad_id'], |
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| 350 | 1 | 'U_DELETE' => $this->u_action . '&action=delete&id=' . $row['ad_id'], |
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| 351 | 1 | )); |
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| 352 | 1 | } |
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| 353 | |||
| 354 | // Set output vars for display in the template |
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| 355 | 1 | $this->template->assign_vars(array( |
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| 356 | 1 | 'U_ACTION_ADD' => $this->u_action . '&action=add', |
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| 357 | 1 | 'S_VIEWS_ENABLED' => $this->config['phpbb_ads_enable_views'], |
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| 358 | 1 | 'S_CLICKS_ENABLED' => $this->config['phpbb_ads_enable_clicks'], |
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| 359 | 1 | )); |
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| 360 | 1 | } |
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| 361 | |||
| 362 | /** |
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| 363 | * Get what action user wants to do with the form. |
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| 364 | * Possible options are: |
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| 365 | * - preview ad code |
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| 366 | * - upload banner to display in an ad code |
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| 367 | * - analyse ad code |
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| 368 | * - submit form (either add or edit an ad) |
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| 369 | * |
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| 370 | * @return mixed Action name or false when no action was submitted |
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| 371 | */ |
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| 372 | 13 | protected function get_submitted_action() |
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| 373 | { |
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| 374 | 13 | $actions = array('preview', 'upload_banner', 'analyse_ad_code', 'submit_add', 'submit_edit'); |
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| 375 | 13 | foreach ($actions as $action) |
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| 376 | { |
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| 377 | 13 | if ($this->request->is_set_post($action)) |
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| 378 | 13 | { |
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| 379 | 10 | return $action; |
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| 380 | } |
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| 381 | 11 | } |
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| 382 | |||
| 383 | 3 | return false; |
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| 384 | } |
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| 385 | |||
| 386 | /** |
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| 387 | * Enable/disable an advertisement |
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| 388 | * |
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| 389 | * @param bool $enable Enable or disable the advertisement? |
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| 390 | * @return void |
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| 391 | */ |
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| 392 | 6 | protected function ad_enable($enable) |
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| 393 | { |
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| 394 | 6 | $ad_id = $this->request->variable('id', 0); |
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| 395 | |||
| 396 | 6 | $success = $this->manager->update_ad($ad_id, array( |
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| 397 | 6 | 'ad_enabled' => (int) $enable, |
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| 398 | 6 | )); |
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| 399 | |||
| 400 | // If AJAX was used, show user a result message |
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| 401 | 6 | if ($this->request->is_ajax()) |
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| 402 | 6 | { |
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| 403 | 2 | $json_response = new \phpbb\json_response; |
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| 404 | 2 | $json_response->send(array( |
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| 405 | 2 | 'text' => $this->language->lang($enable ? 'ENABLED' : 'DISABLED'), |
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| 406 | 2 | 'title' => $this->language->lang('AD_ENABLE_TITLE', (int) $enable), |
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| 407 | 2 | )); |
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| 408 | } |
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| 409 | |||
| 410 | // Otherwise, show traditional infobox |
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| 411 | if ($success) |
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| 412 | 4 | { |
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| 413 | 2 | $this->success($enable ? 'ACP_AD_ENABLE_SUCCESS' : 'ACP_AD_DISABLE_SUCCESS'); |
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| 414 | } |
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| 415 | else |
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| 416 | { |
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| 417 | 2 | $this->error($enable ? 'ACP_AD_ENABLE_ERRORED' : 'ACP_AD_DISABLE_ERRORED'); |
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| 418 | } |
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| 419 | } |
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| 420 | |||
| 421 | /** |
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| 422 | * Submit action "preview". |
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| 423 | * Prepare advertisement preview. |
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| 424 | * |
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| 425 | * @return void |
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| 426 | */ |
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| 427 | 2 | protected function preview() |
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| 431 | |||
| 432 | /** |
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| 433 | * Submit action "upload_banner". |
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| 434 | * Upload banner and append it to the ad code. |
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| 435 | * |
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| 436 | * @return void |
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| 437 | */ |
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| 438 | 1 | protected function upload_banner() |
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| 439 | { |
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| 440 | 1 | $this->data['ad_code'] = $this->input->banner_upload($this->data['ad_code']); |
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| 441 | 1 | } |
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| 442 | |||
| 443 | /** |
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| 444 | * Submit action "analyse_ad_code". |
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| 445 | * Upload banner and append it to the ad code. |
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| 446 | * |
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| 447 | * @return void |
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| 448 | */ |
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| 449 | 1 | protected function analyse_ad_code() |
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| 453 | |||
| 454 | /** |
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| 455 | * Submit action "submit_add". |
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| 456 | * Add new ad. |
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| 457 | * |
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| 458 | * @return void |
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| 459 | */ |
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| 460 | 2 | protected function submit_add() |
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| 472 | |||
| 473 | /** |
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| 474 | * Submit action "submit_edit". |
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| 475 | * Edit ad. |
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| 476 | * |
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| 477 | * @return void |
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| 478 | */ |
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| 479 | 4 | protected function submit_edit() |
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| 499 | |||
| 500 | /** |
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| 501 | * Print success message. |
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| 502 | * |
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| 503 | * @param string $msg Message lang key |
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| 504 | */ |
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| 505 | 6 | protected function success($msg) |
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| 509 | |||
| 510 | /** |
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| 511 | * Print error message. |
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| 512 | * |
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| 513 | * @param string $msg Message lang key |
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| 514 | */ |
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| 515 | 6 | protected function error($msg) |
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| 519 | } |
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| 520 |
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: