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:
| 1 | <?php |
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| 29 | class Give_API_Keys_Table extends WP_List_Table { |
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| 30 | |||
| 31 | /** |
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| 32 | * @var int Number of items per page |
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| 33 | * @since 1.1 |
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| 34 | */ |
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| 35 | public $per_page = 30; |
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| 36 | |||
| 37 | /** |
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| 38 | * @var object Query results |
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| 39 | * @since 1.1 |
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| 40 | */ |
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| 41 | private $keys; |
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| 42 | |||
| 43 | /** |
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| 44 | * Get things started |
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| 45 | * |
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| 46 | * @since 1.1 |
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| 47 | * @see WP_List_Table::__construct() |
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| 48 | * |
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| 49 | * @global $status |
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| 50 | * @global $page |
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| 51 | */ |
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| 52 | View Code Duplication | public function __construct() { |
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| 53 | global $status, $page; |
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| 54 | |||
| 55 | // Set parent defaults |
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| 56 | parent::__construct( array( |
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| 57 | 'singular' => esc_html__( 'API Key', 'give' ), // Singular name of the listed records |
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| 58 | 'plural' => esc_html__( 'API Keys', 'give' ), // Plural name of the listed records |
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| 59 | 'ajax' => false, // Does this table support ajax? |
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| 60 | ) ); |
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| 61 | |||
| 62 | $this->query(); |
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| 63 | } |
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| 64 | |||
| 65 | /** |
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| 66 | * This function renders most of the columns in the list table. |
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| 67 | * |
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| 68 | * @access public |
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| 69 | * @since 1.1 |
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| 70 | * |
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| 71 | * @param array $item Contains all the data of the keys |
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| 72 | * @param string $column_name The name of the column |
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| 73 | * |
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| 74 | * @return string Column Name |
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| 75 | */ |
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| 76 | public function column_default( $item, $column_name ) { |
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| 79 | |||
| 80 | /** |
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| 81 | * Displays the public key rows |
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| 82 | * |
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| 83 | * @access public |
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| 84 | * @since 1.1 |
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| 85 | * |
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| 86 | * @param array $item Contains all the data of the keys |
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| 87 | * |
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| 88 | * @return string Column Name |
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| 89 | */ |
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| 90 | public function column_key( $item ) { |
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| 93 | |||
| 94 | /** |
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| 95 | * Displays the token rows |
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| 96 | * |
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| 97 | * @access public |
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| 98 | * @since 1.1 |
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| 99 | * |
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| 100 | * @param array $item Contains all the data of the keys |
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| 101 | * |
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| 102 | * @return string Column Name |
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| 103 | */ |
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| 104 | public function column_token( $item ) { |
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| 107 | |||
| 108 | /** |
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| 109 | * Displays the secret key rows |
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| 110 | * |
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| 111 | * @access public |
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| 112 | * @since 1.1 |
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| 113 | * |
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| 114 | * @param array $item Contains all the data of the keys |
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| 115 | * |
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| 116 | * @return string Column Name |
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| 117 | */ |
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| 118 | public function column_secret( $item ) { |
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| 121 | |||
| 122 | /** |
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| 123 | * Renders the column for the user field |
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| 124 | * |
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| 125 | * @access public |
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| 126 | * @since 1.1 |
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| 127 | * @return string |
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| 128 | */ |
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| 129 | public function column_user( $item ) { |
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| 170 | |||
| 171 | /** |
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| 172 | * Gets the name of the primary column. |
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| 173 | * |
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| 174 | * @since 1.5 |
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| 175 | * @access protected |
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| 176 | * |
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| 177 | * @return string Name of the primary column. |
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| 178 | */ |
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| 179 | protected function get_primary_column_name() { |
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| 182 | |||
| 183 | /** |
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| 184 | * Retrieve the table columns |
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| 185 | * |
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| 186 | * @access public |
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| 187 | * @since 1.1 |
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| 188 | * @return array $columns Array of all the list table columns |
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| 189 | */ |
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| 190 | public function get_columns() { |
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| 200 | |||
| 201 | /** |
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| 202 | * Generate the table navigation above or below the table |
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| 203 | * |
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| 204 | * @since 3.1.0 |
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| 205 | * @access protected |
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| 206 | * |
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| 207 | * @param string $which |
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| 208 | */ |
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| 209 | View Code Duplication | protected function display_tablenav( $which ) { |
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| 229 | |||
| 230 | /** |
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| 231 | * Display the key generation form |
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| 232 | * |
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| 233 | * @access public |
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| 234 | * @since 1.1 |
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| 235 | * |
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| 236 | * @param string $which |
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| 237 | * |
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| 238 | * @return void |
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| 239 | */ |
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| 240 | function bulk_actions( $which = '' ) { |
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| 266 | |||
| 267 | /** |
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| 268 | * Retrieve the current page number |
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| 269 | * |
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| 270 | * @access public |
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| 271 | * @since 1.1 |
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| 272 | * @return int Current page number |
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| 273 | */ |
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| 274 | public function get_paged() { |
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| 277 | |||
| 278 | /** |
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| 279 | * Performs the key query |
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| 280 | * |
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| 281 | * @access public |
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| 282 | * @since 1.1 |
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| 283 | * @return array |
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| 284 | */ |
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| 285 | public function query() { |
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| 305 | |||
| 306 | |||
| 307 | /** |
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| 308 | * Retrieve count of total users with keys |
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| 309 | * |
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| 310 | * @access public |
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| 311 | * @since 1.1 |
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| 312 | * @return int |
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| 313 | */ |
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| 314 | public function total_items() { |
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| 333 | |||
| 334 | /** |
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| 335 | * Setup the final data for the table |
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| 336 | * |
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| 337 | * @access public |
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| 338 | * @since 1.1 |
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| 339 | * @return void |
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| 340 | */ |
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| 341 | View Code Duplication | public function prepare_items() { |
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| 361 | } |
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| 362 |
This check marks private properties in classes that are never used. Those properties can be removed.